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actually kind of significant http://www.arrl.org/news/view/china-set-to-launch-several-amateur-radio-satellites-this-summer six birds all with linear u/v transponders. oh and look, i now have computer-controllable radios for uplink and downlink, so I dont have to gently caress around with tuning. (incidentally i caught a good HO-68 pass over the weekend and using the CW beacon, ballparked doppler shift at 25-30 hz/second)
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May 26, 2015 20:48
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oh man this old nokia is bringing back memories. lol @ the 'all deployment will now happen through version control' email i just read. gently caress, that place was a hellhole. just factory reset the sumbitch cause it doesn't like my wifi anymore, guess i changed the password how many new leo birds is that anyway? 8-9 right?
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May 27, 2015 01:35
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yeah theres a good handful. the past few years have been lovely especially once AO-51 poo poo the bed (it was LOUD) and i was losing hope. but things have turned aroudn in amsat land more in the past 18 months than i could have imagined, and its only going to accelerate now would be a good time to get set up with 2/70 all-mode and start getting swift with everything. a 706mkiig or 857 (really even an 817) would be an excellent start, though two radios is strongly suggested for satellite work i'd wager that especially given the impending onset of the decline of our so-weak-and-lovely-it's-going-in-record-books solar cycle, vhf/uhf activity is going to start jumping up. you can bomb out psk31 or jt65 a pretty good distance with 100 watts of 2 meter ssb, and more consistently than on HF
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May 27, 2015 02:06
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Okay, the advice was to  , so here goes:Since I recently earned my tech license, but am not intimately acquainted with the ins and outs of circuits, how much of my time is worth dedicating to the design/repair of radio circuits at this point? I'm not very intimately acquainted with electronic circuitry, and despite having crashed and burned on the General test, sailed past the Tech exam easily. General showed a bit more practice than theory; would the easiest way to go about learning this being picking up a few radio/anntenna kits and futzing around with them? I'm more of the hands-on learning type, so it makes sense to me. (Post is not reply)
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May 27, 2015 04:55
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LieutenantFrost posted:Okay, the advice was to don't stress the electronics too much. The stuff general teaches on top of tech is important to learn , though, if you found it a stumbling block. it's not just important to build circuits and such, but just to even use power properly without doing everything legos style brand new kit parts together. you really want to know what ohms law means and how to account for current. And how frequencies vary against wavelength. but really you don't need to jump into any sort of circuit building off the bat, just have fun - get a radio, budget $180 for a radio and antenna to get started is my opinion.
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May 27, 2015 04:58
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LieutenantFrost posted:(Post is not reply) it sure isn't. see if you can land this one in the correct thread on your 3rd attempt e: I'm a loving idiot. disregard. I'll leave my idiocy here for posterity though awful displayed the thread starting with the post I replied to and I thought it was another new thread shitface fucked around with this message at 05:05 on May 27, 2015 |
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May 27, 2015 04:59
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seriously tho if you just got your tech, 'grats and my initial layout would be something like: $150 - http://universal-radio.com/catalog/ht/0060.html $25 - http://www.smileyantenna.com/collections/dual-band/products/270a-dual-band that combo was my first 'tech level' intro rig and i still use that same combo to-date and it's an awesome pair // do not please please do not get a baofung fake china radio, you deserve to learn with a real radio and there is a difference //
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May 27, 2015 05:02
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Sniep posted:seriously tho if you just got your tech, 'grats and my initial layout would be something like: Thanks, Sniep. Actually currently working with babby's first setup of a Baofeng (Pofung now, apparently?) BF-F8HP with a Nagoya 15.6" whip attached instead of the stock antenna. Basically, I'm at the point where I want to listen before I ignorantly step into the land of the natives and get shredded. Setting up this thing is proving to be interesting, but the scanner I bought (BCD396-XT) is proving to be a bit more to bite off than I can chew. shitface posted:it sure isn't. see if you can land this one in the correct thread on your 3rd attempt NBD. My dumbass should have paused to decipher what the button said before I clicked it.
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May 27, 2015 05:25
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are you programming the scanner with a computer please tell me yes
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May 27, 2015 05:26
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i just have this to say... you can't "have fun tuning around" on a baofeng.. you can tune to a frequency, and you can drive power to an antenna, but you cannot have a fast back and forth comm nor can you just spin the dial, it's impossible given the speed of the SDR radio tuner. it's two entirely separate techs
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May 27, 2015 05:29
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Does Freescan count y/n
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May 27, 2015 05:30
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yeah freescan's okay. i have like 3800 channels in my 396 so if you have q's just let me know
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May 27, 2015 05:30
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Sniep posted:i just have this to say... Having paged through the various documentation sources, I have no illusions about the capabilities of the Baofeng 'tis why I got the Bearcat in the first place Scanners be scannin'
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May 27, 2015 05:32
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i'm talking entirely about hands-on operation tuning by spinning the dial and just looking for poo poo, and generally USING the radio. the SDR type cheap ones from china have the functional characteristics which make it a "radio" but it's not a true ham radio in the sense that any ham used to radio would enjoy using it, or even find it suitable the truest analogy would be, it's a ham radio emulator, running in software, that controls some parts of a radio ditch the emulator, they are not nearly as good as a SNESX or whatever is on a pc at emulating the real thing, if you follow the analogy it's really worth it!
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May 27, 2015 05:34
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in fact that's a real good analogy. from now on i'm referring to china radios as "ham radio emulators"
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May 27, 2015 05:36
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Sniep posted:i'm talking entirely about hands-on operation tuning by spinning the dial and just looking for poo poo, and generally USING the radio. fwiw i enjoy firing up gqrx with my $20 rtl-sdr stick and just looking for weird columns on the waterfall
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May 27, 2015 06:21
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Jonny 290 posted:its making GBS threads all over the main denver packet freq, 145.05 do it it's the rigol ds1054z (50 mhz) you want, you can unlock it "into" a ds1104z (100 mhz) and also add all the options (advanced trigger, serial decoding, ...)
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May 27, 2015 06:31
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holy poo poo http://youarelisteningtolosangeles.com/
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May 27, 2015 08:17
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Jonny 290 posted:though two radios is strongly suggested for satellite work i was thinking about this the other day, you only need 1 for transmit right, the other is rx only? so would a 857 and an rtl-sdr be a good combo? assuming you're in a situation where you can use rtlsdr and a computer
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May 27, 2015 13:29
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rtlsdr will be deafened by TX from the other band transmitter. they have like, no filtering. my 271 is SPECIFICALLY filtered for only 143-149 mhz, and even it gets about 10 db of desensitization when I transmit on 70cm. speaking of which a very nice redditor sent me a pristine 50 foot coil of RG-62 coax (93 ohm impedance). This is the last key for building egg beaters! http://wb5rmg.somenet.net/k5oe/Eggbeater_2.html
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May 27, 2015 16:45
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ham radio country music bitchin about the wife not even joking https://www.youtube.com/watch?v=hSj6oxTt-Qg
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May 27, 2015 17:29
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i found out today that california has a number of special interest plates that can't be ordered online; one needs to provide documentation and proof of entitlement. here is the list of plates for which the state of california demands that you prove your poo poo: Amateur Radio, Antique Motorcycle, Congressional Medal of Honor, Gold Star Family, Historical Vehicle, Honorary Consul, Horseless Carriage, Legion of Valor, Pearl Harbor Survivor, Purple Heart Recipient, and Press Photographer License Plates
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May 28, 2015 04:56
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http://www.ebay.com/itm/121461115214 is this optocoupler board a thing that would be useful? i can't find the page i was reading earlier that mentioned these also i wasted a day loving around w/ that allstar live cd thing thinking i could set up my own extensions and poo poo but apparently its all phoning home and shti so gently caress that ill roll my own. im not rly a linux guy tho so that will be a learning experience too. you could say i dabble a little PuTTY riot fucked around with this message at 06:04 on May 28, 2015 |
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May 28, 2015 06:01
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I bought a thing
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May 28, 2015 06:14
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I thought I didn't have a good soldering iron, but I opened up a Pelican case and forgot I'd put this in there:Weller Pyropen posted:Manually ignited butane gas operated, soldering iron Does the hot air blower function basically mean this thing is a portable rework tool as well as a soldering iron? I can't use it yet since I don't have a fuel refill and am having trouble finding a manual, but this would save me a lot of money.
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May 28, 2015 07:28
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turns out it was some stuff in iax.conf. i got a softphone to register but then changed a thing and couldn't get it to work again. think i might blow it all away and start from scratch
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May 28, 2015 07:31
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the contents of the other pelican case   
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May 28, 2015 08:48
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atomicthumbs posted:I thought I didn't have a good soldering iron, but I opened up a Pelican case and forgot I'd put this in there: My pyropen runs off standard lighter butane, but ic rework with basically a blowtorch is not recommended since you'll melt the ic packages. If you manage to not melt them you still risk heating too quickly which will cause moisture in the package to boil, potentially breaking the ic in weird ways I've used a temperature controlled blower to reflow solder and rework so it can be done but it's risky
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May 28, 2015 09:00
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in 6 hours I'll be a licensed ham or not but probably
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May 28, 2015 09:07
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longview posted:My pyropen runs off standard lighter butane, but ic rework with basically a blowtorch is not recommended since you'll melt the ic packages. If you manage to not melt them you still risk heating too quickly which will cause moisture in the package to boil, potentially breaking the ic in weird ways it's not really a blowtorch tho? it's got a blowtorch attachment but the thing uses catalysis to heat the soldering tip or hot air. what's the normal air temp doing hot air rework?
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May 28, 2015 09:07
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atomicthumbs posted:it's not really a blowtorch tho? it's got a blowtorch attachment but the thing uses catalysis to heat the soldering tip or hot air. Professional rework is done with a temperature ramp over several minutes based on temperature sensor feedback, typically up to 250-300 Celsius, for reflow soldering prototypes i used 350-400 directly with a low flow rate The weller will probably work, but you still risk overheating or moisture destruction with it, like most solutions
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May 28, 2015 14:31
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2m is wide open up here in MN/WI/IA today... I just keyed up a repeater 170mi away.
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May 28, 2015 15:48
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manero posted:2m is wide open up here in MN/WI/IA today... I just keyed up a repeater 170mi away. holy poo poo you aren't kiddin  http://aprs.mountainlake.k12.mn.us/ bookmark it for all your VHF band opening needs
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May 28, 2015 16:15
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Jonny 290 posted:holy poo poo you aren't kiddin Make sure you zoom in and out caues its a little janky imo:  note the missing blob over the louisiana bootheel and the lil cluster over AR/TN/MS that isn't in the zoomed out pic
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May 28, 2015 16:20
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the coolest use of APRS i've seen tho
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May 28, 2015 16:22
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Jonny 290 posted:holy poo poo you aren't kiddin Yeah, that map pretty much confirms the direction I was able to hit the repeater. Saint Paul, MN to Tomahawk, WI. Edit: It would be cool if the APRS site could overlay frontal boundaries: 
manero fucked around with this message at 16:49 on May 28, 2015 |
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May 28, 2015 16:38
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from last night on the zombie net not bad for a fully battery powered luggable station (FT-7900R into a diamond X50) (meter is on the high power band not the low one obv)
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May 28, 2015 16:51
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Sniep posted:from last night on the zombie net coworkers wondering why i'm crying a little bit lmfaooooooooooooo
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May 28, 2015 17:00
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OPSEC
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May 28, 2015 17:01
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I did the exam today and I passed. 
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May 28, 2015 22:39
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