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got my general this morning, time to talk about ailments worldwide
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Jan 10, 2015 21:02
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Pham Nuwen posted:got my general this morning, time to talk about ailments worldwide dang congrats all around holy crap we're movin on up! China is selling ham radios for $11. http://www.ebay.com/itm/400778647505 Get up on CW and you can use this stuff!
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Jan 10, 2015 21:19
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mailman came. man, this thing is tiny, like...a pack of big cigar blunts. lots of jesusy stuff. maybe ill get something interesting when the sun goes down.
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Jan 10, 2015 22:33
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my current "rig": 
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Jan 10, 2015 22:36
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radio Havana 
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Jan 11, 2015 00:54
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jonny 290 thanks for telling me to turn up the rf gain in sdr# i'm having some jank where i basically have to clobber the sdr# config if anything changes so i'm updating ubuntu so i can put gnuradio on my sarnsung arm chromebook vodka tonics and radio lmiot
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Jan 12, 2015 03:06
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last night it was bacardi and soundmodem for me
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Jan 12, 2015 03:10
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looks like 250V was too low a voltage to run 100W into a long wire with the tuner -- gonna try to upgrade the GDT to 350V next time i have the chassis open could actually hear a clicking sound when it discharged, then the SWR protection would reduce power, since the tube would stop conducting the power would rise up to the threshold again and click gonna have to buy some interface cables and a copy of ham radio deluxe next month to run digimodes
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Jan 12, 2015 15:33
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Panasonic shortwave radios are really highly regarded and i'd like to pick one up some day. RF-2200  here it is with the matching antenna tuner :O  RF-2800 - very popular  Can't even read this. Don't need to.  RF-2900 was more desktoppy, between a regular desktop receiver and clock radio size?  then the big desktop radios, RF-4800/4900 (cosmetic diffs):  The RF-6300L had incredible 80's styling and that "big square radio with a big handle" look in vogue at the time. I love this one.  and then there is the monstrosity, the yacht, the moby dick. RF-9000  unghhhhhhhhh e: oh gently caress look at this weirdo, the RF-1115. 2 cop bands and am/fm  Jonny 290 fucked around with this message at 06:24 on Jan 13, 2015 |
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Jan 13, 2015 05:27
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Jonny 290 posted:dang congrats all around holy crap we're movin on up! okay, i'll bite, how the gently caress does one learn to transmit in CW without lidding up the airwaves i know about the various trainers and poo poo for receiving, but how does one develop a fist without fisting the sky
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Jan 13, 2015 06:02
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ok this is fun is anybody up for some sony porn   looks like a fun afternoon to me  here's my bitchin 80s sony shortwave radio with a god drat printer in it so i can drop weatherfax truth bombs on yo asses     
Jonny 290 fucked around with this message at 06:22 on Jan 13, 2015 |
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Jan 13, 2015 06:15
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Storysmith posted:okay, i'll bite, how the gently caress does one learn to transmit in CW without lidding up the airwaves cw is 85% receiving and 15% sending as far as effort goes keyers are the norm, only old beardos use straight keys any more, and even then it is only on Straight Key Night get an iambic paddle and a keyer and 70% of your timing problems will sort themselves out in a half hour. the bencher by-1 paddle or whatever is a good unit for both noobs and intermediates, and you can either buy a keyer or just program an attiny85 or something - fun side project in itself people can traditionally send about 50% faster than they can copy. go by copy speed, spend more time on listening
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Jan 13, 2015 06:16
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and now i have an itch to holla at my german brothers GRUNDIG POST satellit 210  Satellit 2000  satellit 2400  650, gently caress the watermark this is a good pic  satellit 800  3400  500, nice smaller one  e: ohmygodlookatthisthing 
Jonny 290 fucked around with this message at 06:50 on Jan 13, 2015 |
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Jan 13, 2015 06:38
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Jonny 290 posted:ok this is fun not quite as pretty but I've always wanted one of these 
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Jan 13, 2015 07:16
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oh dude the 2010 is legendary. cult radio. it's no slouch at that air band either
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Jan 13, 2015 08:07
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Jonny 290 posted:and now i have an itch to holla at my german brothers rip grundig
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Jan 13, 2015 09:01
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rtl-sdr, gnuradio, and gqrx on my sarnsung arm chromebook https://www.youtube.com/watch?v=IHgfcGWvcRA
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Jan 13, 2015 17:44
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Jonny 290 posted:650, gently caress the watermark this is a good pic i approve of this styling just imagine that knob feel
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Jan 13, 2015 18:34
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longview posted:i approve of this styling those switch detents. you know some guy spent 3 weeks getting that right.
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Jan 13, 2015 18:35
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really all radios should be big square things with handles on the front and a rack mount kit supplied in the box and a huge amount of knobs and buttons to confuse the casuals, pro listeners only
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Jan 13, 2015 18:38
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Jonny 290 posted:those switch detents. you know some guy spent 3 weeks getting that right. i loving love detents, love to play with my knob if you know what i mean
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Jan 13, 2015 18:43
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those pictures are by far the best argument against sdr everything
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Jan 13, 2015 19:07
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Bloody posted:those pictures are by far the best argument against sdr everything otoh the contents of those pictures are also far more expensive than sdr everything
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Jan 13, 2015 19:09
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yeah but think of the knob feel
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Jan 13, 2015 19:10
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the ux of stroking those knobs vs  easy choice
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Jan 13, 2015 19:10
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one could absolutely do a hardware interface for an SDR tho build a radio front panel with the display and a bunch of encoders and buttons backend magic to tie it into the sdr app it'd take Effort but it would probably be quite rewarding
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Jan 13, 2015 19:12
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Jonny 290 posted:one could absolutely do a hardware interface for an SDR tho use an old non working radio, gut it and put an sdr + raspi inside
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Jan 13, 2015 19:19
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does knobfeel count if you're feeling up female n connectors and amphenol panel mount usb holes??? sniped this on amazon, looks like it was a price error. no actual amphenol components are going on it (l-com instead) b/c then it would cost as much as a real shortwave receiver Dairy Days fucked around with this message at 19:23 on Jan 13, 2015 |
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Jan 13, 2015 19:21
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spankmeister posted:use an old non working radio, gut it and put an sdr + raspi inside there are tons of radios floating around that have like blown up PLL's and poo poo. it'd be neat to get an old TS-180 or icom 701 or whatever, rip out the broken poo poo and still utilize the front end, filters, etc. etc. and the controls. might have to rip out the displays and replace with something less snowflakey though
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Jan 13, 2015 19:22
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Palace of Hate posted:does knobfeel count if you're feeling up female n connectors and amphenol panel mount usb holes??? n connectors seem mostly the same, but 38999 or belden industrial minimum for knob feel i also really like the amphenol ecomate connectors, i walked around fiddling with a pair for a few days at work
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Jan 13, 2015 19:43
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Jonny 290 posted:there are tons of radios floating around that have like blown up PLL's and poo poo. it'd be neat to get an old TS-180 or icom 701 or whatever, rip out the broken poo poo and still utilize the front end, filters, etc. etc. and the controls. might have to rip out the displays and replace with something less snowflakey though VFDs errware
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Jan 13, 2015 20:10
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is this a police/emergency radio or something that transmits on multiple frequencies? https://www.youtube.com/watch?v=DM_DUZX29JI
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Jan 13, 2015 20:36
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analog linked repeater network maybe? the old norwegian system was a huge set of cross band repeaters and phone patches, all the repeaters were linked so everyone could hear everyone (could also patch in phone calls directly), tell tale sign of that system was a long SELCAL burst before activating the network and occasionally dial tones and DTMF they're being phased out in favour of more modern solutions like DMR for cheapskates, P25 (i think) and TETRA for europe that support trunking and encryption sounds like they have some kind of tone based system to either squelch HTs or activate repeaters and maybe FSK at the beginning of transmissions for HTs? maybe try a MDC1200 decoder to see if it picks up on the data burst e: the norwegian system also had a 1 second 2 kHz burst every 10 seconds for as long as the network was active, presumably as a keep alive to any radio linked repeaters, made it very hard to listen to when long chains were active there would often be two or three sets of tones slightly offset in time longview fucked around with this message at 20:59 on Jan 13, 2015 |
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Jan 13, 2015 20:54
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Cocoa Crispies posted:is this a police/emergency radio or something that transmits on multiple frequencies? I think you're slope detecting an FM signal there, does your SDR software have an NFM or NBFM option? Can you try that and also record it see if it's any different.
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Jan 13, 2015 22:12
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Crankit posted:I think you're slope detecting an FM signal there, does your SDR software have an NFM or NBFM option? oh wow that sounds way better
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Jan 13, 2015 23:11
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need to go all unbreakable in this poo poo and start some emergencies, pretty quiet afternoon
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Jan 13, 2015 23:13
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what's a good sdr board to get because the one at utwente.nl is loving amazing and i want something like that
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Jan 13, 2015 23:20
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Pham Nuwen posted:what's a good sdr board to get because the one at utwente.nl is loving amazing and i want something like that if you want one exactly like that one it will need to have a bandwidth of ~25MHz, be prepared to spend a few hundred + (+++) dollars. i think something like the hackrf would be satisfactory while not being insanely expensive but the cap for price on sdrs is basically limitless. check the tuning range to make sure it can tune low enough to the frequencies on utwente websdr or get an upconverter. heres a semi recent list of available sdr boards http://www.rtl-sdr.com/roundup-software-defined-radios/ edit: also don't expect to see the same performance out of the box, utwente guy has some front end poo poo going on ( http://wwwhome.cs.utwente.nl/~ptdeboer/ham/sdr/#may2009 ) and also iirc really good antenna positioning Dairy Days fucked around with this message at 23:35 on Jan 13, 2015 |
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Jan 13, 2015 23:29
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Crankit posted:I think you're slope detecting an FM signal there, does your SDR software have an NFM or NBFM option? https://soundcloud.com/bonzoesc/local-emergency-service-radio may take some time to process; i turned up the voices and removed a huge gap of silence too
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Jan 13, 2015 23:33
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Pham Nuwen posted:what's a good sdr board to get because the one at utwente.nl is loving amazing and i want something like that i'm dicking around with this $16 one, cheaper than breakfast
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Jan 13, 2015 23:34
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