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The Shortwave Radio Uberthread! JESUS PENIS CHRIST, SIX YEARS? People need lives. OP UPDATED, 05/06/10 ___________________________________________________________________________________ UPDATE: The 100th radio contest has been won by Supreme Lord Jeremy! ___________________________________________________________________________________ I know threads on the topic of Shortwave “Numbers Stations” have popped up a time or two, but I haven’t seen a thread devoted to SW Radio as a whole since I’ve been here, so I figured why not start one up? First of all, the nitty gritty: Great, you’ve called us all in here. Now just what the hell IS shortwave radio? Shortwave (also known as High Frequency, or HF) is a term for AM radio of frequencies between 1701 and 29999 kilohertz. Most AM radios you’re used to listening to probably only go up to 1700 kHz. The range of SW frequencies is special because they can reflect off of the ionosphere, to the ground, back up and down several times. This effect, known as “propagation,” allows signals to carry much farther than any other type of signal. A strong enough SW broadcast under proper conditions can travel all around the world! Weather and solar activity can boost/weaken signals at different frequencies, so when you look for broadcasts with a SW receiver you never know just what you might pick up! So what can I listen to on SW? Because of the worldwide nature of shortwave, it is frequently used for international government-operated news and propaganda services. Using a portable SW receiver I have picked up nationalistic propaganda from Cuba, Russia, China, Israel and North Korea! Most countries broadcast in multiple languages, so you can listen to Fidel Castro or Kim Jong Il’s propaganda machines in English! Some nations (I’m looking at you, Netherlands) actually have decent, untainted news media but they are in the minority. One time I listened to a half-hour long opera in poorly translated “Engrish” singing the praises of North Korea’s “fearless leader” Kim Jong Il. It was surreal! A vast portion of SW broadcasts from the United States are Religious in nature. American SW preachers are the absolute creepiest loving brimstone preachers on the goddammiting planet. Half of them sound like rambling schizophrenics, the others are just plain weird. Even the staunchest Atheists can get a kick out of the limitless humor goldmine of SW god praising. Perhaps the most fun broadcasts to search for are clandestine transmissions, including pirate radio broadcasters, which can usually be found around the “Echo Charlie” band at 6.6 mHz (and extremely active around the frequency of 6925 kHz in particular) or so called "border blasters" which are pirate signals which circumvent US laws by operating just on the other side of the Mexican border. More on these "Border Blasters" can be learned from this NPR documentary (thanks, TetsuoTW!), and more on ordinary pirate radio can be found out at the HF Underground wiki, run by Chris Smolinski. Some slightly more unsettling clandestine transmissions are government affiliated secret signals. The most famous phenomenon of the government kind being number stations. Nobody knows how long intelligence agencies have been communicating this way, but it first started to become readily apparent to SW listeners during the cold war. A voice (sometimes electronically generated like an automated telephone message) would come on the airwaves (often heralded by a short piece of music) and begin reading off chains of seemingly random numbers. While governments like to deny the existence of number stations, they are generally accepted to be one-way transmissions to spies encoded with a one-time pad. Spooky! Here are some good sites for more info on Number Stations, which are what drew me to SW in the first place. The CONET Project: A 4 cd set of number traffic recordings, now available for free download online. Shortwave Espionage by Simon Mason. A VERY comprehensive guide to numbers monitoring. Spy Numbers by Chris Smolinski, head of the "Spooks list." What's Transmitting Now? is a list of Numbers Stations currently transmitting (or probably transmitting) at any given time. Can help you track them down easier than simply scrolling through the bands willy-nilly. Mysteries of Radio Here is an archive of the "Spooks List" Numbers and Oddities newsletter, a publication just for people who love listening to numbers stations... and are unhealthily obsessed with it. A wealth of information. What happens when a pair of humble Hams, angry about interference on their allocated bands, single-handedly wage war on a number station? Here's what happens: They win. Does Shortwave have anything to do with Ham radio? For that matter, what the blue gently caress IS ham radio? SW is tangentially related to ham radio in that many ham operators transmit on SW frequencies in SSB or CW mode. For those who may not be familiar with ham radio, it is simply an amateur-operated 2 way communication system. More information can be found in this excellent thread put together by McRib Sandwich. With an SSB capable SW receiver, you will be able to listen to Ham conversations. So I’m thinking of buying a SW radio. What should I look for? First of all, remember this very simple rule: You get what you pay for. There are lots of cheap “pocket” SW radios that only cover a small portion of the SW spectrum. Some only receive within designated “broadcast bands” leaving some of the more interesting broadcasts inaccessible. Ultimately, if you’re thinking of getting into SW plan on spending at least 100 to 150 dollars on a good receiver. Here is a list of features you should look for: • Full, continuous coverage of the SW spectrum. • Multiple tuning increments, including 1 kHz. Some cheaper radios tune in 5 kHz increments only, but some more interesting things transmit between these internationally designated increment frequencies. Make sure you can tune in the smallest increments possible! • Digital tuning with direct frequency entry via numerical keypad. • Single Sideband (SSB) circuitry. SSB is a modulation, separate from AM/FM which is sort of like AM with no carrier. Frequently used by aeronautical transmissions, HAM radio enthusiasts, and many many MANY weird clandestine operations. If you try listening to an SSB frequency without SSB circuitry, it will just sound like an adult on the “Peanuts” cartoon talking. • External Antenna socket. This allows you to plug in a more powerful antenna and pick up all manner of crazy poo poo from farther away. I would recommend buying from the following short list of radios that have ALL of those key features, and are easy to find through various online retailers as well as brick-and-mortar locations such as Radio Shack and Fry's Electronics. All of these radios have an excellent combination of price, performance and features.  The Grundig G3 My #1 Pick. Please note: Earlier G3 units were plagued by defective synchronous detection and several other problems. While these issues have been ironed out beautifully in the current models, plenty of the 1st-gen G3s are still in stores. If you get a lemon, Eton/Grundig is EXCELLENT about repairing/replacing radios, so you can buy a G3 with confidence.  The Grundig G6 Advantages include most (but by no means all) of the features of G3 at just over half the size/price. I have one and enjoy it immensely.  The Eton/Grundig E5/G5 (Look for used/overstock - no longer produced) Previous version of Grundig G3, sourced from Degen in China. Excellent radio, and my go-to shortwave receiver. Can frequently be found refurbed for a good bargain at places like Fry's Electronics.  Degen/Kaito DE-1103 Older Degen/Kaito version of G5/E5. Almost identical in performance, but with a bizarre and awkward interface.  Sony ICF-SW7600GR Like a G3 with fewer presets and minus a few notable features. All of the radios listed above will be excellent first SW receivers, but the one I would recommend most highly would be the Grundig G3, which has a superb balance of features and price while also including aeronautical scanner capabilities. The G6 and E5/G5 are outstanding radios as well (I use them myself, and highly recommend them), but the G3 has the edge in terms of absolute performance and features for the buck. Each radio, however, has its own set of features and what may be ideal for one listener may be overkill for another. As such, I made the following chart that shows the differences in features:  This chart DOES require a bit of explanation as to what some of these features are. Synchronous Detection is a special type of circuitry that helps a radio lock onto amplitude modulated signals and keeps you from losing signal due to selective fading. Can make a large improvement when it comes to copying fainter signals. Aeronautical Band Scanning capability allows you to listen to aircraft/control tower communications on the VHF aeronautical frequencies. Selectable USB/LSB allows you to switch between Upper and Lower sideband, whereas Continuous fine tuning has a single fine tuning knob to tune between USB and LSB. Selectable SSB is a highly desirable feature. Wide/Narrow Switch adjusts the receiving bandwidth of the radio. It can help tune out interference if a station on an adjacent frequency is bleeding through to the frequency you're trying to listen to. DX/Local switch adjusts the sensitivity of the unit. If you're listening to a relatively nearby station, the local position can keep the excessive signal strength from sounding distorted. The DX position helps boost sensitivity for copying distant stations. FM Radio Data System picks up digital text information piggybacked on FM signals, and displays the station's callsign as well as the song/program playing on the LCD display of the radio. Note on Local AM Station interference: All of these radios are (to a certain extent) susceptible to interference on SW frequencies caused by nearby AM broadcast transmitters. The G6 is particularly susceptible to this! The Magnetic loop antenna linked in the antenna section below is particularly useful in "tuning out" this type of interference, and can be easily built for very little money. ------------------------------------------------------------------ Now that I have a SW receiver, there's a whole bunch of crazy rear end noises messing things up, and I can't use it in my car. What the gently caress, charlie? SW signals are highly susceptible to interference of all kinds. Luckily, by identifying the kinds of interference you are hearing, you can learn to eliminate interference from your reception and coax stronger signals out of the ether. Goon extraordinaire Halah provided educational sound clips that'll help you to identify the different types of RF interference caused by household items. Here's his post on the subject: Halah posted:Holy hell, what's all that noise I'm hearing?!? Most of the time it's normal radio white noise, but shortwave is very prone to interference. Sometimes the interference can block a signal completely, and possibly frustrate a new listener. With the aid of Gordon West's ham CD's I can share some common noises and maybe help cure them (I got mod approval for this post.) Also, there are a lot of utility transmissions that can seem like some sort of interference if you aren't familiar with them. These can include over the horizon radar, RTTY, Interval signals, Radiofax, and even scientific experiments like the HAARP array in Alaska! overflow provided this link which contains numerous audio clips that can help you figure out what some of those kooky sounds you pick up are! Using External Antennas A portable shortwave receiver's built-in whip antenna has severely limited capabilities. Luckily, there are a number of options for boosting the strength of distant signals. The simplest is called a "long-wire" antenna. A long-wire can be easily built by taking a 45 foot length of speaker wire, soldering the end to an alligator clip and clipping it to the end of your whip antenna while throwing the other end up a tree! If you're a bit more ambitious, you can solder the speaker wire into a 1/8" mono phone plug and plug it directly into the external antenna jack on most portable radios. Also, legendary SW goon InediblePenguin provided a schematic on how to build a "slinky antenna" to improve your reception. It really works! InediblePenguin posted:We have a black plastic AM loop, two Slinkies, and about 75 feet of assorted wire (stereo and clothesline) looped back and forth in a sort of net pattern across the ceiling of our radio room. It's pretty ghetto, but hey, we can listen to the BBC! Unfortunately, a long-wire or a slinky, while massively amplifying distant signals, also amplifies local interference For a more sophisticated antenna that takes a little bit more work/parts, but is still easy to build in an afternoon, many goons (myself included) swear by Alex Krist's Homebrew Magnetic Loop. It gives a HUGE boost in signal, while also rejecting local interference from nearby RF sources and MW transmitters. However, goon Jonny 290 has the following word of advice about magnetic loops. Jonny 290 posted:That's a solid mag loop design. If you guys experiment with mag loops, make sure that all of your connections are very solid and secure. Mag loops operate in a different manner, and resistance in the antenna elements and connections hurts them quite a bit. You'll be good if you securely clean and solder all connections, probably - don't cheese it with clamps, though. I can vouch for the quality of the mag loop design, as well as Jonny 290's advice. Still, this is an extremely simple project even for a novice electronics DIY-er, and the results are fantastic. This has very quickly become my go-to SWL antenna for the superb amplification in signal combined with a phenomenal improvement in signal-to-noise ratio. A+++++, would build antenna again! I can't recommend this antenna project highly enough. Halah also provided a few general notes about antennae and frequency terminology applicable to both Shortwave and Scanners. Halah posted:Longer isn't necessarily better at the really high frequencies. The reason long antennas work for shortwave is indicated in the names of the bands. 15 meters, for example. That is roughly the length of one wave (hertz/cycle.) Antennas work best when optimized for the frequency they are receiving. 1/4 wave or 1/2 wave, or even 5/8 wave, for example. A 1/2 wave antenna on 15 meters would be 7.5 meters long. At 460 mhz, for a 1/4 wave antenna, we're talking about 6.5 inches. A full wave antenna at 460 mhz is roughly 26 inches. For future reference, to find the 1/4 wave length, 2992/(freq. in mhz) is a rough approximation. One can do the math from there to find other combinations. Also, remember the lower the frequency is, the longer the wavelength is. Brushing up on some basic photon physics can always help you figure out whether a harebrained antenna idea will be ridiculous or not. --------------------------------------------------------------- Shortwave Terminology Glossary With special thanks to Halah There are lots of phrases and terminology used throughout this thread that may be confusing to SW newbies. So here is a breakdown of some of the more important phrases. AM: Same as in typical AM radio, AM stands for "amplitude modulation." It is a common way of sending signals over radio frequencies. Most commercial and national SW broadcasts are in AM. SSB/USB/LSB: "SB" stands for sideband. SSB= Single Sideband, USB= Upper Sideband, and LSB= Lower SIdeband. Sideband is modulation seperate from AM which works like AM with no carrier and is a highly efficient method of sending transmissions over long distances. SSB is frequently used for two-way transmissions such as HAM radio operators, aeronautical transmissions and maritime transmissions. RTTY: Radio Teletype. RTTY is a way of sending text over shortwave by way of a decoding device. Radio Fax: Radio fax frequencies are like a shortwave radio data modem. They sound like the 7th level of hell in a scifi movie when heard in SSB mode. MW: Medium wave, more commonly known as local AM broadcast band. LW: Long Wave, a range of frequencies with longer wavelengths than the MW band. UTC/GMT/"Zulu time": These are all terms for coordinated universal time, also known as Greenwich Mean Time or "Zulu time" (in the military). UTC is a universal 24 hour clock with no regard for time zones. SW schedules are given in UTC so people can tune in without having to convert to local time. UTC updates can be heard in the US on time signal frequencies 2.5, 5, 10, 15 and 20 mHz. CW: CW (or Continuous Wave) is another term for Morse Code. Morse code is still frequently used on SW frequencies. By the way, W1AW broadcasts regular code practice on 1.8175, 3.5815, 7.0475, 14.0475, 18.0975, 21.0675, 28.0675 and 147.555 MHz so you can hone your mad CW skillz. "Q" Signals: These are CW shorthand. Why are they used? Because it's a hell of a lot easier to pound out "73" in Morse code than it is to do "goodbye" It's easier to "QSA" instead of "What is the strength of my signals?" Keep in mind you might be hearing a station thousands of miles away, even in another country. These codes remove language barriers and keep communication simple. If interference is high, "QSA" might get through, but you might hear "W**T I* **e s*re**h o* *y *ig**l**" If the phrase was typed out in Morse code. QNA Answer in prearranged order. QNC All net stations copy. QND Net is directed. QNE Entire net stand by. QNF Net is free. QNG Take over as net control station. QNI Net stations report in. QNM You are QRMing the net. QNN Net control station is [call sign]. QNO Station is leaving the net. QNP Unable to copy you. QNS Following stations are in the net. QNT I request permission to leave the net. QNU The net has traffic for you. QNX You are excused from the net QNY Shift to another frequency. QNZ Zero beat your signal with mine. QRG Will you tell me my exact frequency? QRH Does my frequency vary? QRJ Are you receiving me badly? QRK What is the intelligibility of my signals? QRL Are you busy? QRM Is my transmission being interfered with? QRN Are you troubled by static? QRO Shall I increase power? QRP Shall I decrease power? QRQ Shall I send faster? QRS Shall I send more slowly? QRT Shall I stop sending? QRU Have you anything for me? QRV Are you ready? QRX When will you call me again? QRY What is my turn? QRZ Who is calling me? QSA What is the strength of my signals? QSB Are my signals fading? QSD Is my keying defective? QSG Shall I send messages? QSK Can you hear between your signals? QSL Can you acknowledge receipt? QSM Shall I repeat the last message? QSN Did you hear me? QSO Can you communicate with me? QSP Will you relay? QST General call preceding a message. QSU Shall I send or reply on this frequency? QSW Will you send on this frequency? QSX Will you listen? QSY Shall I change frequency? QSZ Shall I send each word more than once? QTA Shall I cancel message? QTB Do you agree with my counting of words? QTC How many messages have you to send? QTH What is your location? QTR What is the correct time? Other common shorthand CW phrases are mainly for amateur radio operators, but can still be found on the SW bands. These aren't in order, they're just as I think of them. 73 Goodbye, cheers, etc. DX Distance. Used mostly for "DX contests" to see how far one can transmit/receive. YL Young lady. Used with the numbers stations as a way to report who was heard. WX Weather SKED Schedule. Used for regularly programmed stations/nets. DE From. As in 'W1AW SKED DE W4WIS' if I was going to send you the Morse code schedule that is broadcast on W1AW. Basically, "here is the W1AW schedule from W4WIS" CQ Hello, hello, hello, is there anybody out there? UR I hate the fact that this made it to the internet, but it's the obvious. SW LINKS Dog Case gave us a great link, a PDF chart that has a basic breakdown of EVERYTHING you will find on the SW. In the event that you run across weird noises/data streams (which you certainly will), this will help you to determine what you are hearing. Also, here is the link to the A/V forum Ham Radio thread. It'll be great if the Ham goons can come in here and get some good crossover discussion going! -NOTE: This thread is now in the archives and requires an archives capable account to view. There is now a new GBS Ham thread located here. I also would like to include a few links in terms of general SW primers and equipment resources that can help people cet started. Radio Intelligencer is a great amateur radio resource focusing largely on equipment. They have a lot of good product reviews to help you with choosing a good receiver. Universal Radio is a flippin' fantabulous retailer that carries everything you could possibly look for in terms of SW/ham/emergency/scanner radios. They have every tiny bit of equipment you could hope to look for. I'm not going to lie, I have a serious hard-on for Eton/Grundig radios. I do not have a financial/corporate interest in the company, I just really like their radios. Their Elite series (E1, E5, E10, E100) are very good radios. They even have a $500 uberpimped-out SW/AM/FM/SSB radio with XM receiver built-in. DXing dot com has a good beginners introduction to SW listening. Definitely worth checking out. If you're looking for a good dipole antenna on the cheap for serious DXing, this visually atrocious, but terrific ebay store is a great resource. They sell high-end dipoles made out of metal slinkies! Kiwa Electronics will hot rod receivers for you for enhanced performance at reasonable rates and many people swear by them. Additionally, here are a couple of reference books on SW listening that many find useful: WRTH Passport to world-band radio UK-Centric SW links, provided by thehustler http://www.ofcom.org.uk - The UK regulator of telecommunications and radiocommunications. A good starting guide for lots of information. You'll also find some information on amateur radio licensing, if that is your sort of thing (see HAM radio thread, obviously), which leads to... http://www.rsgb.org.uk - The Radio Society of Great Britain - this is more suited to HAM radio than listening, but you might find information on new allocations and special event stations that might be worth a listen. Places to spend your hard earned cash: http://www.nevadaradio.co.uk - Nevada Radio, a pretty cheap online shop that sells a good range of stuff http://www.wsplc.com - Waters and Stanton, pretty much the main place for radio gear in the country, stocks a wider range of stuff than Nevada, and the prices are usually pretty comparable. Both places stock a huge range of shortware and HAM gear, as well as other cool radio-based stuff. That's all well and good, but is SW the ONLY way to hear weird and crazy poo poo on radio frequencies? No, not at all. For shorter range, but frequently weirder stuff, go for a VHF/UHF scanner. Scanner discussions and great info for the beginner start on Page 18. But AstroZamboni, I'm a lazy, shiftless motherfucker who doesn't have the patience to read this whole post. What should I do? My first instinct would be to tell you to find and utilize a straight razor and a bathtub, as you are polluting the gene pool with your ADD and illiteracy. However, some of you out there might dismiss such a measure as draconian extremism. Instead, just check it all out in portions on goon extraordinaire nitrogen's awesometacular SA Shortwave Wiki (NOTE: link currently broken. Leaving in place in case nitrogen returns)! The wiki contains all of the information contained in this OP, and will soon contain a whole metric fuckton more! Mad props to nitrogen for making this possible. ---------------------------------- So, any fellow SW goons want to join the conversation? Trade stories of weird poo poo found on the airwaves? Grab your radios and start tuning, everyone. Lets have some fun! Also, goon nitrogen has put together a SW listening IRC channel #shortwave. So go keep him company! ---------------------------------- THREAD FINANCIAL DRAIN STATS, ADDED 6/14/07, UPDATED THROUGH 9/10/09 Kenwood R1000: 1 unit sold: $176 Uniden BCT8 Scanner: 1 unit sold: $160 Yaesu Receiver: 1 unit sold: $300 total Yaesu FRG-100 receiver: 1 unit sold: $430 Yaesu Ft-707: 1 unit sold: $142 Icom IC-725 Tranceiver: 1 unit sold: $400 Icom IC-T7H: 1 unit sold: $162 Quansheng VHF Tranceiver: 1 unit sold: $60 GRE PSR-282 Scanner: 1 unit sold: $100 Sangean ats-505p: 2 units sold: $200 Sangean SG-721L: 1 unit sold: $30 Softrock: 1 unit sold: $10 Kaito/Degen 1103: 9 units sold: $728 Kaito/Degen 1102: 1 unit sold: $49 Kaito/Degen 2100: 1 unit sold: $85 Yaesu FRG-7: 1 unit sold: $50 RadioShack DX-394: 1 unit sold: $90 RadioShack DX-390: 1 unit sold: $15 Sony 7600 portable: 2 units sold: $310 Sony ICF-SW7600GR: 5 units sold: $874 Sony ICF-2010: 1 unit sold: $293 cvisors big spending spree (IC-706MkIIG, powersupply, LDG AT-7000 tuner, a few antennas): $1,713 Sony AN-LP1 antenna: 8 units sold: $797 Grundig S350/DL: 7 units sold: $500 total Grundig YB 400: 1 unit sold: $3 (Dog Case, you are one lucky son of a bitch!) Grundig G4000A: 2 units sold: $130 Grundig G2000A: 1 unit sold: $54 Grundig Mini300: 5 units sold: $150 Eton E5/Grundig G5 : 60 units sold: $7,913 total Grundig G6: 13 unit sold: $1,379 Grundig G4: 1 unit sold: $100 Grundig G3: 1 unit sold: $100 Roberts R9914: 1 unit sold: $66 Realistic DX-440: 1 unit sold: $4 Pro-2055 scanner: 1 unit sold: $200 Sundry accessories (books, antennae, wire): Totaling $720.50 investment Eavesdropper Dipole: 1 unit sold: $80 slinkyantennas.com Broomstick Antenna: 1 unit sold: $35 Degen DE31 Antenna: 3 unit sold: $84 Lowbander Slinky Antenna: 1 unit sold: $20 MFJ-971 ATU: 1 unit sold: $160 Ham License (1): $50 Lowbander DX-394 Mod: $90 Platinum Upgrade: 1 (thanks Halah!) $10 New Forums accounts (welcome aboard, PancakeMan, Stephen-Mcr, War Penis, BrntNjal, Coryne, JacquelineDempsey and I, Greyhound!) $70 Forums Upgrades for 100th radio winner: $20 So far, this thread has inspired goons to part with $19,162 dollars (American) of their hard-earned money, making this thread a significant financial drain on the forum population! And if Hudibrastic can persuade his wife to let him get an E1XM, this total will be pushed to $19,662! Considering $10,879 of the second total has been going to the Eton/Grundig corporation, and $2,274 has been going to Sony, I should be asking for some big drat commissions! Hell, even Lowtax himself has made 100 bucks in new members and upgrades resulting from this thread. Quick Stats: Radios sold due to thread: 129 External high-end Antennae: 17 Special Thanks I'd like to thank some of the goons who have made AWESOME contributions to this thread, providing links, instructions, hints, tidbits and general radio badassery. I'd like to name them here. Halah thehustler Darksol Dog Case blugu64 Bad Mutant Vibes overflow nmfree Hudibrastic InediblePenguin PancakeMan Nitrogen McRib Sandwich Keep on listening! -AsroZamboni (KF7JKA) AstroZamboni fucked around with this message at 02:17 on Jun 11, 2013 |
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Jun 5, 2007 01:01
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Kid Ying posted:What kind of antenna do you use with your portable? I have the Sony radio you mentioned and use a length of wire soldered on to a 3.5mm plug into the external antenna jack. It gives a bit better reception than the included reel antenna and telescopic but I’m just wondering if there’s anything better you recommend. I’ve only been doing this a few months so I don’t know much. Depends. I have an antenna farm in my backyard of wire antennae of various lengths stretched out in different directions. I also have a 35 portable wire antenna that a keep wound up in a fly fishing reel attached to a caribener clip for taking on camping trips. Sometimes I just take a shitload of wire, alligator clip an end to the built-in whip antenna and throw the other end up a tree. Different set ups work better/worse than others depending on conditions. There isn't any one perfect answer. In a perfect world I would erect a large tunable multi-band dipole on my roof, but that aint happening.
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Jun 5, 2007 01:18
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Crazy story #1. This happened just last night. I was tuning in "Atencion" which is a Cuban number station, and picked it up nice and cleanly. About 5 minutes into the transmission, something which (at first) sounded like a legitemate broadcast came on the same frequency causing interference. The station was in Spanish, but I noticed that it seemed to be repeating the same phrases over and over again. I know a little bit of Spanish, so I was able to pick up the gist of what was being said and it was always variations on the phrase "I like it very much," such as "It is very pleasing to me," "I love it," "it is certainly agreeable," etc. All together there were 10 variations on the phrase repeated in groups. This obviously implied the phrases were substitutes for digits 0 through 9 and was transmitting code groups. Data bursts could also be heard interspersed with the phrase groups. Also, the broadcast seemed to be coming from farther north than the Cuban number traffic, which indicated it was likely coming from inside the US. So here's the million dollar question: If you're going to jam a number station, why try to send a message on top of it, or go to that much trouble to make a jamming signal sound like a half-assed legit broadcast or a very weird code group?  Edited for spelling. AstroZamboni fucked around with this message at 19:12 on Jun 6, 2007 |
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Jun 5, 2007 01:25
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Aineris posted:I'm really interested in the Preachers. I've long had an interest in If you primarily want to smoke up and listen to SW preachers, a cheap pocket radio with analog tuning would actually be just fine. There is a decent Eton/Grundig pocket 7 band SW radio that is carried at most Radio Shacks for 30 bucks. It'll give you access to the weirdest SW religion has to offer. http://www.etoncorp.com/product_card/?p_ProductDbId=6289
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Jun 5, 2007 01:31
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and watching televangelists due to the utter hilarity, but I think hearing even more crazy Shortwave preachers rant would be better, but I'm not about to buy a nice shortwave radio just for that. You wouldn't happen to have any clips of this saved that could be uploaded do you?
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Here'e the link to the HAM thread in AV. I'm not a HAM myself, but many SW listeners are. Maybe we could get some good crossover discussions happening! http://forums.somethingawful.com/showthread.php?s=&threadid=2386322 I also wouldn't be opposed to hearing stories from VHF/UHF scanners. Maybe this should just be the RF monitoring megathread?
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Jun 5, 2007 01:52
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Crazy Story #2: The existence of this freaky station was independently verified by other goons during the last Number Station thread (which pushed me to stop lurking after five years and finally get a loving account). On some nights, if you turn to 5915 kHz you can hear bird calls. The odd thing is it is only a short (five or six seconds) loop of bird calls repeated over and over and over for TWO FREAKIN' HOURS. It starts at the top of an hour, runs for two hours, shuts off. What is even weirder is that the bird calls are used to cover up an RTTY (radio teletype) or Databurst transmission in the lower sideband. This is one of the spookier stations I've run across, and I haven't yet found an explanation for it. Crazy Story #3 By far the weirdest single clandestine station I've listened to was the "Cuban Babbler," a Number Station where a male voice sings the number transmissions in spanish. I often wonder if differing musical notes conceal an extra layer of encryption to the code.  Mundane story #1: Every shortwave HAM radio operator is a middle aged or elderly gentleman with a southern accent. Basically, HAM frequencies are the most boring chat rooms of all. I've used the SSB function on my radio to listen to ham conversation. One time I listened to a bunch of old guys chatting for an hour about their favorite brands of coffee, with the one who roasts his own beans being the most vocal. Usually all the hams I've listened to mostly talk about radio equipment.
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Jun 5, 2007 02:17
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Shastao posted:Just put in an order for an Eton E5, been meaning to get a shortwave radio for awhile, and now I finally have the money/excuse (birthday present for self). I've tried looking but haven't found anything quite like I want ... is there a chart of what frequencies are commonly used for what, like emergency services and aircraft and so on? Or is it something you have to sort of get a feel for? Actually, charts of that very nature are included in the user manual for the E5! They are very helpful and have aided me in picking up several aircraft and nautical transmissions. Emergency transmissions are rarer, and local ones will almost vertainly be in VHF/UHF unreachable through the E5. I am very seriously considering purchasing a UHF scanner sometime in the future. Niklas Kronwall posted:I got extremely lucky and bought a Grundig Satellit 700 at a garage sale for 40 bucks. Haven't really gotten to use it yet, I just got married and going to bed when my wife does is far more appealing than numbers stations. Jesus merciful gently caress on a pancake! THat is one HELL of a score, and if that thing is in good condition it might be just about the best drat radio you can get. 
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Jun 5, 2007 16:45
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Popsicle posted:I had heard that BPL (Broadband over Power Line) will effectively make listening to worldband impossible anywhere remotely close to power lines. Does anyone know more about this? Short answer is possibly. It would really cause interference with anyone trying to listen to any kind of radio (including cell phones, TVs, and police/fire radios), but would really muck up SW due to the relative weakness of signals. Additionally, anyone transmitting any kind of RF signal could cause interference on the BPL line loving up data streams. So here we have 2 choices: We could scrap BPL until we can find a better system, or completely say goodbye to any technology utilizing radio. I'd go with scrapping BPL, personally. Wikipedia has a lot on the subject here.
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Jun 6, 2007 06:42
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blugu64 posted:Good timing! My shiny New SL350 Deluxe should be here tomorrow In terms of sensitivity and audio quality, that is a drat fine radio. Lacks a few features like key entry and SSB, but makes up for it in solid quality. WHen you get it be sure to let us know how it holds onto station positions. The earlier model S350 (non deluxe) tended to "drift" pretty badly. I'm curious to know how well the frequency lock feature works on the DL.
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Jun 6, 2007 07:10
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blugu64 posted:I apologize for the double post, but didn't catch this until now. Fuuuuuccckkkk.... Now I NEED a god-dammitin' scanner. There goes next semester's tuition. hoju22 posted:I bought the el cheapo radioshack handheld and can only pick up a few stations in my apartment. Can I perform any mods to boost my reception on this thing or should I scrap it and pony up some cash for a halfway decent receiver? I'm in the city in a small apartment so I don't have any room to run lengths of wire and realize the being in a city probably doesn't help my situation at all. Depends. Getting close to an open window should help reception a bit, but deep in the busy city isn't typically the optimal place to do SW DXing. Just taking a drive out of the city a ways for an evening will open up lots of stronger signals, and boosting the antenna with a length of wire won't hurt either. AstroZamboni fucked around with this message at 07:29 on Jun 6, 2007 |
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Jun 6, 2007 07:26
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Dog Case posted:Radio is awesome. I've got a couple shortwave receivers, a scanner, and another scanner on the way. Best. Thrift store find. EVER. Jesus gently caress, where is this thrift store? Bobcats posted:I have a Sony 7600GR and had at one point a 100-foot longwire antenna. Radio is cool and I always seem to hear something new despite having to slog through the ten million religious broadcasters. Ironically, I've found that sometimes "longer is better" isn't the case. When I tried hooking up an 80 foot long wire, it picked up more interference than programming. Trimming it down to 60 feet worked best ultimately. At least where I live, Gene Scott is still on TV too! A local channel shows "Festival of Faith" reruns on latenight. I gotta give the dude credit, he was a hell of a showman. Rotten Library has the best biography of him I've ever seen. Wikipedia's entry is a joke, blatantly propagandized by one of his followers/employees. http://www.rotten.com/library/bio/religion/dr-gene-scott/
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Jun 6, 2007 18:06
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Niklas Kronwall posted:My current RF command center consists of my LW\MW\SW\FM Grundig Satellit 700, my old-as-gently caress Realistic Patrolman-B which picks up AM\FM\VHF\UHF\Weather\Television\Air Traffic, and my also-old-as-gently caress Panasonic RF-1150 which picks up AM\FM\SW\CB frequencies. I have them wired into the line-in on my computer for recording, and am looking into picking up external antennas to wire into them (hopefully I can find a way to splice a few antennas into all of them). Unfortunately, the old SW radio doesn't do SSB, I don't have a manual with my Grundig, and the old Patrolman can't pick up most modern VHF\UHF transmissions. I will probably add a good modern scanner at some point so that I can cover the full RF spectrum. Whish SW doesn't handle SSB? Because the Satellit 700 sure does. I'm pretty sure the Grundig manuals can be found online somewhere. Radio Intelligencer might be a good place to start looking.
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Jun 6, 2007 18:38
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Niklas Kronwall posted:The Patrolman-B is a lower-end portable from the early 80s; it can receive CB (but I hardly ever hear anything) but it doesn't do SSB. Universal Radio is probably a good source that can help you find the adapters you need. That way when you do have a good external antenna, you can use it with either radio.
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Jun 6, 2007 19:02
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Dog Case posted:Just adding a neat link before I run off to work. A chart of all of the radio frequency allocations for the U.S. Find a weird data transmission and wonder what it could be? This thing can give you some sort of an idea. Awesome. I'll add this to the OP. Videodrome posted:I decided to check out the web site. Guess what they have? Live streaming audio of their shortwave broadcast! I started checking all of the big broadcasters and they all have streaming audio. Crystal clear, on demand, anywhere I have a computer and an internet connection (which is everywhere). But...but...where's the fun in that? Half the fun of SW tuning is trying to test the limits of radio technology and rigging up crazy crap homebrew antennae to squeeze out the tiniest bit of strength from a weak signal. AstroZamboni fucked around with this message at 19:15 on Jun 6, 2007 |
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Jun 6, 2007 19:12
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The OP has been updated with a shitload of links. Just lettin' yalls know.
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Jun 6, 2007 19:37
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blugu64 posted:EDIT: OP you may want to include some links to a couple of the reference books to help people find stations. Done and done.
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Jun 6, 2007 22:16
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hudibrastic posted:1. A good quality portable FW radio. Good quality: like most things electronic, you get what you pay for. You could spend $40 on a cheap Korean or Chinese knockoff from RadioShack or a pawnshop, but then you'll spend most of your time fiddling with the radio dial and getting frustrated as the radio drifts off the station you're listening to. Portable: if you enjoy short wave radio, you're going to eventually buy a portable anyway so that you can listen to broadcasts as you travel and high-quality portables are cheaper than high-quality tabletop radios. Basically, you have two choices: the Eton E5 or the Sony ICF-SW7600GR. Each one will run you about $150; you can't go wrong with either. Buying anything else at first means you run the risk of either spending too much of your money on a hobby that you end up not liking or not spending enough of your money, getting frustrated, and then giving up. I mostly agree with you, but in terms of quality the Kaito/Degen 1103 is pretty good too. The user interface is just difficult to use. Most of the circuitry and guts are identical to the E5 (they're both manufactured by the same Degen factory in China). The E5 has the edge in terms of ease-of-use, though. BUT, if someone wants quality on the cheap the Kaito/Degen is just fine. Also, This unit from Sangean is very decent as well. The higher end portables from Sangean are no slouches.
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Jun 7, 2007 01:41
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JoeRunner posted:Very interesting and informative. I've always had an interest in SW. I've been scanning for years, started with a Realistic Pro-42 (early 90s) and am up to a Uniden Bearcat 396t listening to local police (san diego pd and surrounding areas). One question I have, and doesn't appear to have been touched, is about transmitting. Looking at most of the SW radios that have been posted dont appear to have any function of transmitting. Is it possible to transmit on SW or only listen. I know HAM's transmit and have licenses, do they transmit on the SW channels? Indeed, it is possible if you have a shortwave tranceiver and a proper Ham license. The OP has a link to the Ham radio thread in the A/V Arena which will provide lots of info. Canuck-Errant posted:(Incidentally, what does "MB" mean, exactly? The dial has positions for FM, AM, MB, and SW, but I'm not sure what MB is, or what I'd find there.) It probably stands for "Meter Band," and probably works in conjunction with another dial to select individual bands within the shortwave spectrum. Some bands are more active at different times of day or in different parts of the year.
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Jun 7, 2007 06:16
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Milka posted:There's a small community of pirate shortwave broadcasters in the US. They can typically be found around 6925. Here's their main forums where they give each other listening reports - http://www.frn.net/vines/ All except for the lack of SSB, its a mighty fine radio.
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Jun 7, 2007 17:28
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foobar posted:I know this thread is primarily about SW, but I've seen a few mentions of police scanners and was wondering if anyone could recommend a good police scanner for a novice. Most of the reviews of the Uniden Bearcats seem to indicate that they're too complicated for a novice. Reviewers have made the same complaint about the Eton E5. I guess it just boils down to number of functions and versatility also introduces a bit of a learning cure. I don't mind taking a bit longer to get completely familiar with a pice of equipment if it means the thing can do more cool stuff.
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Jun 7, 2007 19:36
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blugu64 posted:AstroZamboni It basically boils down like this. Degen is a Chinese company that makes SW portables. Degen-branded radios typically have all of the text on the buttons/display in chinese. Kaito is the American supplier of Degen radios in English with american electrical socket AC adapters. In MOST cases Eton radios are from a different manufacturer (and are mostly a cut above the Degens) EXCEPT for the E5 which is actually manufactured by Degen and is exclusively licensed to Eton/Grundig. The E5 is an updated (and VERY much improved) version of a Degen/Kaito radio called the DE-1103. Overall Degen/Kaito radios tend to be of very good quality, and so are the Etons.
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Jun 7, 2007 20:59
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^^^^See my post below, and yes it is just a rebranded Degen.^^^^Scaevolus posted:I can manage without ease-of-use, so the Kaito 1103 looks interesting. It looks like I could pick one up new for about $90, shipped-- are there any specific features that would warrant the extra cost of the E5, apart from user interface? For one thing, the Eton has about 3 times more memory slots for frequency storage. Volume adjustment is WAY easier, and the radio as a whole is just a hair more sensitive. Radio Intelligencer has a pair of equipment reviews that outline the differences better than I can. http://www.radiointel.com/review-etone5.htm http://www.radiointel.com/review-degende1103.htm DarkSol posted:How hard exactly is it to hear the Voice of Korea? North Korean propaganda is absolutely hilarious, in my opinion. Voice of Korea isn't the easiest station to pull in, but with a decent antenna (even just a long wire) you can pick it up. It tends to be hard to receive with just a built-in whip.
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Jun 8, 2007 01:38
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im_sorry posted:And, while we're on the subject of radio equipment.... Meh. I'm not that fond of computer based receivers. I prefer something portable that you can load up with AAs and take way the gently caress into the middle of nowhere and get good reception. Although they do have swanky features, gotta give 'em that.
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Jun 8, 2007 04:27
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Scaevolus posted:What are those memory slots used for? Do you manually save frequencies, or are they used for autoscan? The E5 has 700 programmable memory slots divided into "Pages" of 7 slots each which can be labeled with a 4 digit alphanumeric tag. You CAN use them for ATS (automatic tuning/storage) which automatically scans through all bands and frequencies and stores the strongest signals, but I prefer to just store them as I find them. Otherwise it would store a shitload of religious broadcasters. The advantage of having a metrick fuckton of memory storage is that nearly all SW broadcasters transmit on multiple frequencies because not all bands are easy to listen to at all times during the day or the year. Having all of a station's frequencies stored in a single page allows you to flip through them and find whichever one is coming in strongest. Number Traffic enthusiasts have another reason for having lot of storage. Most number traffic networks transmit on dozens of different frequencies. Cuban intelligence alone uses more than 40 frequencies, Israel's Mossad uses about 90, and british intelligence uses about 50. I have over a third of my memory slots filled up JUST with numbers traffic frequencies! I have about a quarter of them filled up with regular international broadcasts (Voice of America, Voice of Korea, Voice of Russia, Radio France, Radio Habana, Radio Netherlands, BBC World service), a page full of time interval signal frequencies, a couple pages of local AM/FM stations, and the rest I can use for storing whatever random weird poo poo I can't identify so I can find it later. stray posted:And those "numbers stations" sound spookily cool. (PS - did you guys know Wilco included stuff from a numbers station on their album Yankee Hotel Foxtrot?) Yes, and they got into a shitload of legal trouble for it too. They stole the sample from a CD set called "The Conet Project," which is 4 and a half hours of number station recordings. They didn't get permission, which led to one of the more interesting and unusual copyright infringement cases in history. How could the publishers of CONET claim they had a copyright on something they taped off the radio which was clearly transmitted by somebody else? The Conet producers (Akim Fernandez and Irdial Discs) were able to show that since everybody (read: government intelligence) refused to claim ownership of the stations to the point of denying their existence, the first person who could slap a copyyright on them could own that copyright. One of the funnier points in the lawsuit was when the British government stepped in and tried to shut down production of the Conet project, with an exchange that went something like this:  "People shouldn't be listening to this stuff! It isn't interesting! Its not for public consumption!"  "WHY isn't it interesting or intended for public consumption?""Uh...I can't tell you that.""Why can't you tell us that?" "Uh...because these stations are what you think they are....""HaHA!"
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Jun 8, 2007 15:44
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InediblePenguin posted:We have a black plastic AM loop, two Slinkies, and about 75 feet of assorted wire (stereo and clothesline) looped back and forth in a sort of net pattern across the ceiling of our radio room. It's pretty ghetto, but hey, we can listen to the BBC! Can you knock out an MS Paint blueprint for this, or some sort of instructions for building one? It sounds like a frinktabulous fabtraption! How are your results, typically? Pretty clean reception?
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Jun 9, 2007 01:38
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InediblePenguin posted:
What type of wire do you use? Hookup wire? Speaker wire? And do you just have the wire in contact with slinkies hanging from the ceiling or something? I have a soom with hooks from the ceiling like this, and I would like to build one of these fabtraptions.
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Jun 9, 2007 22:42
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InediblePenguin posted:The stereo wire is I think speaker wire. (Edit because I misunderstood your question. Sorry.) There has been a rash of slinky thefts all across this great nation. I blame the cubans.
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Jun 10, 2007 00:05
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The E100 lacks selectable fine tuning steps on SW, has 350 less storage slots, lacks automatic tuning-storage, and lacks antenna trim function (E10 is the only one to have antenna trim). Here's the specs on each one: http://www.etoncorp.com/upload/contents/307/E100_Specs.pdf http://www.etoncorp.com/upload/contents/307/E10_Specs.pdf
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Jun 10, 2007 00:13
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Mapless posted:Another Ham guy checking in who also loves SW listening. Its the electrical current along the metal surface that allow it to work also acta as an antenna/transmitter pouring off all sorts of weird RF interference. I've found that lots of lights and other audio systems in the house tend to cause interference. I turn off pretty much everything and listen in the dark. Electric fans create some weird interference too, by the way. Especially set on "oscillate" mode.
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Jun 10, 2007 00:28
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Sir Bobert Fishbone posted:If I only have budget enough for one, which book would you recommend I purchase? Between what choices and what kind of budget?
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Jun 10, 2007 18:08
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Sir Bobert Fishbone posted:Between WRTH, Passport, and whatever other book you think might be helpful. Also if you have any magazine or website suggestions to help get started, they'd be appreciated! Assume I have $30-40 to work with. This is from a point of view of VERY limited experiences with these books, but I'd say go with passport.
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Jun 10, 2007 21:58
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Sir Bobert Fishbone posted:Sorry to keep asking dumb questions but I'm kind of excited now. If I were to buy a length of cheap insulated speaker wire and run it out my window along my gutters by my roof, would that be a pretty decent antenna? Yup. I've done this very thing, and it works wonders.
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Jun 11, 2007 00:48
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blugu64 posted:Havn't heard one in years; been hoping I'd hear one or someone would post one so I could tune it...Lesson learned spend more time with the radio;less time with the lady. Some of the numbers traffic monitoring sites have lists of Atencion (spanish numbers lady) frequencies. Sometimes they even have current schedules. Worth checking out, and could help you track down a broadcast more easily.
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Jun 11, 2007 01:42
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Eurakarte posted:I did hear the same station at the same time (2100 UTC) at the same frequency again today, actually. Spynumbers' V2c schedule says it's a daily broadcast, so it'll probably be on again tomorrow. I'll have to try to catch that tomorrow. That's 7 AM, local time, so I'll just have to get up a few minutes earlier than usual and listen before I go to work. I just installed a 50 foot windowframe wire wrap in a southeast-facing window of my bedroom which is perfect for picking up Cuba.
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Jun 11, 2007 01:51
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Crackpipe posted:Does anyone have the Conet 4 disc collection as a zip to download or torrent? The page linked has them as well over a 100 individual little files that have to be grabbed one at a time. Not that I'm aware of, but those files are all pretty small (few of them longer than a minute) and all are in 64kps mp3. It doesn't take long at all to download all of them.
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Jun 11, 2007 01:56
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Funny Conet Stories: The Conet project is seriously creepy to listen to, as anyone who's heard their recording of "Swedish Rhapsody" can attest to. So last year on halloween I set up speakers on the front patio and blared CONET to the entire loving neighborhood. Creeped out everybody, even people who had no idea what the hell these noises were. Creeped out parents more than the kids. A couple of Hams who live in the neighborhood knocked on the door, barely containing their laughter, to tell me I'm a twisted sadistic gently caress. I felt so proud. Also, one time I burned a CD of Conet project samples (picked from the creepiest ones there were) as a sick and twisted prank. The CD started with "You Sexy Thing" by Hot Chocolate, but halfway through the song crossfaded to "The Swedish Rhapsody." I labeled the disc as "Honeymoon Mix" and gave it to my friend Guido as a wedding present, saying it was perfect mood music for sexy time. It worked, and he simultaneously loved/hated the wicked  .Finally, here's a counting snippet from Sesame Street that shows what former intelligence operatives do when they retire from a job at a Number Station. http://youtube.com/watch?v=qYaArMDA1ZE
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Jun 11, 2007 02:08
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Halah posted:It's a small bit of information you send to a station, usually including Some stations will not just send a QSL card, but put you on a mailing list for all sorts of crazy swag. Communist countries are the best about this. The curator of the museum where I work (who happens to be a ham) has a huge collection of insane banners, calenders, etc from commie china. Its keen.
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Jun 11, 2007 05:39
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AstroZamboni posted:I'll have to try to catch that tomorrow. That's 7 AM, local time, so I'll just have to get up a few minutes earlier than usual and listen before I go to work. I just installed a 50 foot windowframe wire wrap in a southeast-facing window of my bedroom which is perfect for picking up Cuba. Holy poo poo, did I ever have a brain fart and miscalculate the local time on THAT one. What the hell was I thinking? 2 PM, not 7 am. 
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Jun 11, 2007 14:34
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Sir Bobert Fishbone posted:My radio came in today! I threw a 20-foot wire up on my roof, and have so far heard some a Chinese-language station, Radio Nacional de Venezuela, and a crapton of crazy preachers. Today they were talking about Jewish people, "ay-rabs," and B-12 complexes. That's because the stations you are trying to listen to aren't braodcasting in SSB. This misconception popped up in the last Number station/SW thread and I tried to address it in the OP, but here goes. Most SW stations transmit in AM (amplitude modulation) mode, just like your local AM frequencies only at defferent wavelengths/frequencies. SSB, however, is a completely different type of signal modulation. An SSB circuit isn't used for "improving" AM transmissions, its used for tuning into completely different types of transmissions. SSB modulation is used by Ham operators, aeronautical/maritime transmissions, other types of two-way transmissions and morse code. Additionally, MANY number stations transmit in SSB. http://en.wikipedia.org/wiki/Single_sideband The above article gets a bit technical, but helps explain how SSB works.
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Jun 12, 2007 03:41
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Halah posted:I'm currently listening to ESPN radio on 380 khz. Longwave? What the hell? It's coming in clear as a bell, too. I can't find anything on Google about what station this is and they haven't ID'ed yet. I found a local sports radio station transmitting on 160 kHz. Think this is probably a birdie too? The regular station broadcasts on 1060. I'm not terribly familiar with the topic of birdies, so if anyone can help out on this topic I'd appreciate it. Edited for CORRECT frequency. AstroZamboni fucked around with this message at 17:47 on Jun 12, 2007 |
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Jun 12, 2007 17:29
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