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transfatphobic posted:if i buy that cheap handset you mentioned in the cj thread what can i do with it? its me, im the whoever the gently caress. ive listened to cops, firefighters, skywarn, hams on the local repeater, weather radio and also the one FM repeater still in space. im rly excited about my 2 rtlsdr dongles gonna try to listen to local pd who are digital only (if not encrypted ofc). it doesn't do any hf stuff or like aviation freqs but it should suit my needs quite well as just a fukken around toy/emergency radio. i saw a state trooper tahoe w/ a bunch of antennas on top and now i wnana find an old suburban interceptor that doesn't have a plastic back seat. prob gonna be hard tho cause everythings tahoes and lol who buys a tahoe instead of a suburban? e:  hot PuTTY riot fucked around with this message at 22:10 on Feb 26, 2014 |
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Feb 26, 2014 22:07
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i should take some pics of the bmw at night now. inside is basically an airplane cockpit now thinking of desoldering the blue LEDs in my uniden scanner and green ones in my CB and replacing with amber so everything matches (the icom has switchable backlight color so its good)
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Feb 26, 2014 22:16
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gm, ick my dad had a chevy citation and it was such a terrible car that not only did he swear off gm forever but 10 year old me swore them off for life also a product so bad that people avoid your brand years before they could even use your product at all
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Feb 26, 2014 22:16
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Werthog 95 posted:already emailed the guy i think i'm just gonna buy one of those little digital lcd scopes for now because theyre small and i dont really need anything more complicated than that right now. that tek is awesome though. i think i might build a foxhole radio this weekend and tune it to the local high-powered classic rock station. i will post pics and videos if this happens.
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Feb 26, 2014 22:18
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asked him about probes and he said he'd send some pics on friday since he's in harrisburg right now
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maniacdevnull posted:gm, ick their trucks have always been pretty good. we had a 99 suburban that was a huge POS but the rest of them (yeah we went thru like 5, lol) were all rly good. my '01 is running just fine w/ 149k on the clock
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Feb 26, 2014 22:28
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spankmeister posted:the google map plugin isn't working but here's a live chart of overhead planes: are these commercial only or could i get the private jets that fly in here to the uni's airport?
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Feb 26, 2014 22:32
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pretty sure a transponder is a transponder is a transponder they use it for ATC and collision avoidance systems so they kinda need to be open to everyone
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Feb 26, 2014 22:33
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makes sense. cool. this thread owns, gonna click the 5 button again just because.
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Feb 26, 2014 22:34
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PuTTY riot posted:their trucks have always been pretty good. we had a 99 suburban that was a huge POS but the rest of them (yeah we went thru like 5, lol) were all rly good. my '01 is running just fine w/ 149k on the clock my parents had a 96 that went 212k before they sold it. fuel pump had a scheduled failure at like 175k and the interior went to poo poo cause my brother drove it during the end of its life but it was still running fine when they sold it.
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Feb 26, 2014 22:39
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ya the 99 was just a lemon or something, rear axle replaced under warranty, maybe the transmission too??? idk, the earlier ones and the newer ones were all better, just that year. hey question for ppl who buy lots of slowboat poo poo from china: if china post tracking says 'despatch from sorting center SHENZHEN' is it on the boat now? and how long does it usually take to get across the pacific + thru customs?
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Feb 26, 2014 22:40
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PuTTY riot posted:ya the 99 was just a lemon or something, rear axle replaced under warranty, maybe the transmission too??? idk, the earlier ones and the newer ones were all better, just that year. anywhere between 2 weeks and 2 months really. 
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Feb 26, 2014 22:43
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PuTTY riot posted:are these commercial only or could i get the private jets that fly in here to the uni's airport? Easy answer is yes. Complex answer is if they are flying IFR and what class airspace they are currently flying in. Neat to see that the software is able to do Mode S.
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Feb 27, 2014 00:08
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Jonny 290 posted:yeah, that doesn't mean they're actually used though. We may have 28 mhz of shortwave bands allocated all told, but there are only like four or five domestic shortwave stations and the only non-religious one, Voice of America, isn't allowed to target US citizens. It's meant for international listeners only. This rule is stupid and backwards. weird. it's hard to get my head around that one. thanks for the info
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Feb 27, 2014 01:32
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Jonny 290 posted:yeah, that doesn't mean they're actually used though. We may have 28 mhz of shortwave bands allocated all told, but there are only like four or five domestic shortwave stations and the only non-religious one, Voice of America, isn't allowed to target US citizens. It's meant for international listeners only. This rule is stupid and backwards. oh poo poo i think i used to drive past one of the religious ones all the time here in pa. WMLK, always wondered what was up with that
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Feb 27, 2014 01:35
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My school was near the ARRL HQ and I got to swing by and work W1AW a bunch. For the uninitiated: it's the HQ of ham radio in the USA and any time a manufacturer comes out with a new lolcrazy high end model they get sent one so you can just pop in show your license card and get to play with $10,000 toys that have every knob ever on the front.
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Feb 27, 2014 04:33
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Jimmy Carter posted:My school was near the ARRL HQ and I got to swing by and work W1AW a bunch. This year marks 100 years since the ARRL's creation, and to celebrate they worked out a special deal with the FCC - over this year, they are allowing select people all around the country use the W1AW call to make contacts. Last Saturday, I spoke to a fella operating W1AW/8, gave me a good report and now I"m in a log book for all time  AND if you watched that satellite video, you heard another station operating W1AW trying to make contacts on the satellite. That call is going to be all over the airwaves for 2014, it's really cool.On the /8 thing, the digit is your 'call district'. These are split up by region pretty much - here is the full chart. I have a "4-land" call, which I got in North Carolina - 4 is issued to most southeast states. Arkansas is a 5-land call, so when I operate on HF, I call "this is XX4XXX slash five" to let people know that I'm not really operating in 4 land. This is important because a lot of people have goals of "Worked All States" awards and such, and it's just polite to let them know up front. Colorado is a 0-land district, so when I move I'll call out "slash zero". I'll never change my callsign or get another new one voluntarily. It's awful to send in CW, difficult to understand over voice so I always have to use phonetics, but it's mine. Jonny 290 fucked around with this message at 15:18 on Feb 27, 2014 |
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Feb 27, 2014 15:16
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Jonny 290 posted:yeah, that doesn't mean they're actually used though. We may have 28 mhz of shortwave bands allocated all told, but there are only like four or five domestic shortwave stations and the only non-religious one, Voice of America, isn't allowed to target US citizens. It's meant for international listeners only. This rule is stupid and backwards. apparently as of july of last year, the rule against VOA broadcasting to american listeners was ended. you can pick it up on shortwave and its internet stream.
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Feb 27, 2014 15:16
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teledildonics posted:apparently as of july of last year, the rule against VOA broadcasting to american listeners was ended. you can pick it up on shortwave and its internet stream. holy cow that owns! update: bought an sdr stick for 18 bucks. woop
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Feb 27, 2014 15:35
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Jonny 290 posted:I'll never change my callsign or get another new one voluntarily. It's awful to send in CW, difficult to understand over voice so I always have to use phonetics, but it's mine. i rly hope i dont get a lovely one cause i kinda feel the same way about it tbh. even if im kz5zzz idgaf e: creepin on ur ULS jonny, u dont even get anything on there saying u took the test w/ cw? thats lame. also what's the 'group' thing under the operator class? PuTTY riot fucked around with this message at 15:55 on Feb 27, 2014 |
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Feb 27, 2014 15:51
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jonny your thread owns and i still listen to ozark bass attack from ultrawizardsword dot net on occasion
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Feb 27, 2014 16:03
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jonny i noticed you haven't posted your callsign in the thread, is that for the normal goons will be goons reasons or is there a ham related reason why giving out ones callsign is frowned upon?
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Feb 27, 2014 16:12
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cause goons. if we get to the point where some of us might get on the radio and talk, i'll pass it around no reason to actively invite the death threats and pizza orders right now
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Feb 27, 2014 16:19
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probably cuz you can look up someone's real name with it
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Feb 27, 2014 16:19
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woop yeah there ya go
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Feb 27, 2014 16:19
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Werthog 95 posted:probably cuz you can look up someone's real name with it and address and everything else. its kinda got me a lil sketched out cause my name is unique enough that i bet itll show up when u just goog my name
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Feb 27, 2014 16:29
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werthog, not to exacerbate the possiblity for abuse here but it's a a public database http://wireless2.fcc.gov/UlsApp/UlsSearch/searchLicense.jsp type in some gibberish (ex: W6OBB) or something and it should pull up a bunch of near matches and you click one and that's the data that's available freely
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Feb 27, 2014 16:32
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Jonny 290 posted:holy cow that owns! 
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Feb 27, 2014 16:33
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i realized by moving ~2 miles, i changed my region and now have to add /3 to everything. THANKS OBAMA
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Feb 27, 2014 16:51
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http://www.w2sjw.com/sounds/MDC1200.mp3 there's no way to not hear this sound when cops let go of PTT is there?
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Feb 27, 2014 16:55
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also what i was saying about not changing my callsign when i get it... if SJW was in there i actually prob would lol
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Feb 27, 2014 16:56
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PICS INC. Let's design an antenna. Since people are getting started here, we have decided to build a simple 2-meter (144 MHz band) vertical antenna that would be suitable for putting up on a pole, in your attic, whatever. We'll do a simple focus on trying to optimize the Standing Wave Ratio (SWR) which indicates how tuned the antenna is to the feedline and radio. 50 ohms is a perfect 1:1 match. We'll shoot for 1.5 or lower across the band. DANGER WILL ROBINSON, HAM RADIO SOFTWARE ON THE HORIZON. PREPARING FOR BAD USER INTERFACE....... Welcome to MMANA-GAL, written by an insane japanese ham. It's one of my tools for basic design and optimization.  Let's add a wire. We'll start with a 1/4 wavelength wire and feed it at the bottom. The "w1b" signifies the feedpoint at bottom left.  Aww, it's so cute.  Let's click that "Calculate" tab. Only pay attention to the top line for now, I was playing with other antennas - MMANA fills this newest-at-top. Looks like our antenna, when placed on the ground and fed against it, has about 1.4 SWR. Hey, not bad! We wouldn't hear much on a VHF antenna sitting on the ground, though.  After we click "Plots", MMANA will show us the projected radiation patterns. Pretty much by the book so far.  The SWR tab shows that we have decent, but rising SWR, and our antenna is possibly too long (if it's too long it'll be a better match at lower freqs, opposite for too short)  Let's get this thing off the ground! Add 5 meters of height and OH GOD WHAT THE gently caress JUST HAPPEN  We lifted it off the ground, and MMANA keeps track of all the electrical connections. By raising the antenna, we disconnected it from its ground plane. See how important the ground plane is? Let's add a ground plane. Remember that a decent ground plane can be made by four 1/4 wave wires sticking out horizontally.  More interesting looking now.  You might have seen that "Optimize" button. This is where the magic happens. Here you can enter parameters to wiggle, criteria to wiggle them by, and metrics to judge the performance of the antenna, which you can individually weight. What i'm doing here is wiggling the length of the vertical element (wire 1). Then, because the radials should match the element at this point, we 'bind' the radial lengths to the element length (the 'Associated' column). Now the program will wiggle all five elements' lengths in 5mm increments, measuring the SWR at each iteration. If it lengthens and the SWR goes up, it goes back and shortens.   Hey, better match now! You see the bottom line (right after we added the wires) and the top line (after we optimized). That SWR is still a little high, though. What else can we do to tune this? Bend those radials! As your ground radials get bent down, your impedance rises - and that's just what we need here. Let's go back and work that Optimize tab some. We'll set it up to wiggle the vertical element length, as before, but this time we're going to change the zenith angle (vertical tilt) of the radials, pivoting them around their start point (the feedpoint) between 90 degrees and 180 - straight out to straight down. START!  Holy crap, that worked perfectly! Look at the SWR below. Almost a perfect 1:1 match.  What's it look like now?  Looks like MMANA bent them down right around 35 degrees to get that match. Easy to reproduce on the real antenna. And here's the SWR curve if we go back to Plots, a very well-tuned antenna that will give us less than 1.5:1 SWR (this is our general benchmark for usability) across the entirety of the 2 meter band. 
Jonny 290 fucked around with this message at 17:06 on Feb 27, 2014 |
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Feb 27, 2014 17:02
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PuTTY riot posted:http://www.w2sjw.com/sounds/MDC1200.mp3 what? you can't decypher it by ear? newb.
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Feb 27, 2014 17:02
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the country rear end SD uses dmtf tones i guess i could prob do those by ear lol
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Feb 27, 2014 17:05
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Oh and the antenna I was playing with before I did that post was a parasitic Lindenblad antenna that I'm thinking of building up this weekend, so I have a fresh 70cm satellite antenna - my Yagi got hosed by an ice storm
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Feb 27, 2014 17:10
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do any of you yoshams keep bigass batteries or a generator so you can keep communicating in the event of natural disaster or nuclear war
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Feb 27, 2014 17:23
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Farmer Crack-rear end posted:do any of you yoshams keep bigass batteries or a generator so you can keep communicating in the event of natural disaster or nuclear war I have a couple of 7amp-hour gel cell UPS batteries that I can run my rigs off of for an hour or three, but no serious lead-acid action. If I wasn't moving soon I'd grab a couple of deep cycle batteries from the local shop, which have about 110 amp-hours or so. They're like 70 lbs each though so I'm holding off. Plus, most of my radios at this point either are already in, or can be hooked up to, one of my cars, so I sort of have two v8 and a straight 6 generator at my disposal at all times. Not really efficient, but would keep me on the air.
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Feb 27, 2014 17:28
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Farmer Crack-rear end posted:do any of you yoshams keep bigass batteries or a generator so you can keep communicating in the event of natural disaster or nuclear war i am prob gonna buy a deep cycle marine batt like 290. maybe i'm paranoid but thunderstorms seem to get worse every year now also i've heard county and uni talking about 'can u hear oxford radio'. wonder if they encrypting now or smth
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Feb 27, 2014 17:38
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apparently their HTs can't only the cars do digital lmao i thought after 9-11 everyone was supposed to be interop
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Feb 27, 2014 17:39
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PuTTY riot posted:after 9-11 everyone was supposed to be interop and this is why the DHS kind of loving hates podunk racist localtowns saying HEY WE CAN CONSPIRE TO PULL OVER MEXICANS WITH IMPUNITY NOW CAUSE ENCRYPTION. terrar money paid for those fancy rear end new digital radios and interoperability was the condition.
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Feb 27, 2014 17:41
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PuTTY riot posted:apparently their HTs can't only the cars do digital lmao i thought after 9-11 everyone was supposed to be interop they had to get money, they didn't have to actually change anything your government inaction
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Feb 27, 2014 17:43
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