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Incomplete Fish posted:For example if you leave the amplifier on and /anywhere/ on the baseband gets a signal louder than -5db youll eventually break an opamp on the board, but you can obviously buy another one from digikey and solder it in. I do not know if any other dongles have this issue. thats kind of a bummer. i was really interested in getting one. can you turn the amp off?
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Oct 3, 2015 03:33
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oh hey, this thread i finally bought an RF signal generator a few weeks ago, showed up yesterday Fluke 6060B:  10k-1050MHz, AM/FM, ~+10 - -127dBm guaranteed output level, goes down to at least -135 dB if i ignore the uncal warning came with the rear connector option, but moving them to the front wasn't really much work. one button is slow and another has slightly ripped so have to glue the membrane back together $210 for a fully working 6060B is not bad imo, even with the international shipping on top it's half off the going rate for this model inside shot from when i moved the connectors: http://i.imgur.com/NmnnGZC.jpg
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Oct 3, 2015 07:59
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Sniep posted:chs: bought my first scanner-scanner ever this thing is dank  it can pick up like everything here even the local p25 phase II systems Sniep fucked around with this message at 01:35 on Oct 18, 2015 |
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Oct 3, 2015 22:36
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Korean Boomhauer posted:thats kind of a bummer. i was really interested in getting one. can you turn the amp off? yeah you can turn it on an doff through software and it doesnt break instantly if you leave it on by accident; it's just something i wish i knew before i got mine. imo it's still the best sdr that exists in it's price range and the amplifier won't break if you only use it on the weakest signals. hackrf owns it's just a touchy baby that should have come with slightly better components. edit: im currently waiting for bad weather to go away so i can erect a gigantic pole and pound some thick rods deep into the earth. i'm gonna put a new dualband 2m/70cm antenna up on like 20 ft of mast along with one of those endfedz HF wire antennas so i can listen to people send beeps and sometimes boops to eachother until I can afford a decent HF transceiver Incomplete Fish fucked around with this message at 00:43 on Oct 4, 2015 |
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Oct 4, 2015 00:39
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Went H-A-M (Melbourne florida ham fest) today, passed my general, didn’t pass the extra, studying would probably help
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Oct 10, 2015 16:20
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Sniep posted:this thing is dank those things are great when your train is late. also people on the platforms think you're a cop because all they know are squelch tones.
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Oct 10, 2015 17:47
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so i want to build a ammo can emergency radio, so today I decided to check out the Army surplus store right next to my new house.. place is freakin' huge and was packed when I went earlier today. ...it was so huge that I was in the wrong building at first which explains why it was all clothing, I had to go to the 2nd building to get the actual milsurp stuff... (Note the sign that says Surplus 2 ==>) .. biggest rear end surplus store i've ever been in.  anyway, got my ammo can:  batteries fit amazingly perfect, 12Ah at 12vDC  now I just need to figure out radio, antenna and what external access is needed and possibly a solar charge solution. (Roll-up panel?) Sniep fucked around with this message at 01:35 on Oct 18, 2015 |
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Oct 11, 2015 01:15
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Radio fits perfectly.  Now to make a couple cables to do hookups... and get a 90° coax angle connector to have the antenna feed come out into the tin. Plenty of room for one notched out - 
Sniep fucked around with this message at 01:35 on Oct 18, 2015 |
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Oct 14, 2015 00:09
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now with actual mounting, drilled holes in side, and bolted poo poo to the can batteries still loose for now but want to put in a restraining bar, they're not LOOSE but would be nice to have it really be 5 foot drop proof also bonus stencil spray paint job of death hell gently caress  looks so prepper tacticlol i fuckin love it  
Sniep fucked around with this message at 02:26 on Oct 18, 2015 |
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Oct 18, 2015 02:24
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so aside from that, i just bit the bullet on my first HF rig, the FT-dx1200 from Yaesu I hope it works out code:It's time to do this shitttttt 
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Oct 19, 2015 05:51
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i was actually eyeballing that particular radio. post post post if its any good
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Oct 19, 2015 05:53
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Korean Boomhauer posted:i was actually eyeballing that particular radio. post post post if its any good from everything i can tell, it's pretty great. it's my first HF rig, figured i'd start off with a middlin tier one and just call it good
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Oct 19, 2015 05:59
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sup now i need a fuckin antenna lol
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Oct 23, 2015 02:12
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unf
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Oct 23, 2015 07:14
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now I have an antenna  and a tuner on each side of hte roof the long way along my ranch, about 45 feet of wire up into this:  then a 4:1 LDG balun on the other wide inside, coax to a better tuner than i could expect the yaesu to have soooo now i am officially HF enabled! 
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Oct 25, 2015 01:40
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nice job! i like the window panel a lot, balanced feeder is also definitely the correct way to feed almost all balanced types of antennas that require tuning gonna take some time to post about my project now, first of all I chose the wrong MCU, second i messed up the DDS interface a bit this is a frequency converter for my Elektrisk Bureau transmitter, it accepts a 100.1-110 kHz square wave clock that's used for the first upconverting mixer  since the radio only generates USB I need this board to shift the frequency up by 2x the IF going into it, this inverts the sideband without affecting the AF quality, output range is then 140.1-150 kHz it's also supposed to have a switch to turn IF shift on/off, and it needs to detect loss of input and shut down its own output signal generation is done with a AD9833 DDS module sub-board, this jitters like crazy on the square wave output, using it is a terrible idea for this DDS generator and I should have included an anti alias filter and a high speed comparator to square up the sine output instead fortunately the jitter sidebands fall outside the AF passband at low output frequencies, so not a huge deal for this project what is super annoying is that the atTiny261A MCU i chose has 1) 128 bytes of SRAM and 2k of ROM, i can just about squeeze in the basic functionality but the ADC input to support analog fine tuning will have to be left out 2) a joke of an SPI module, it's a shift register you have to clock from software, just barely quicker than pure software SPI definitely steering clear of atTinys for my future projects of this scale, atMega or larger, and gonna have to pay a lot more attention to RAM/ROM sizes in the future. atXMegas look pretty decent, some kind of 8/16 bit hybrid (8-bit core with instructions for working on 16-bit values?) good news is I tested it in-radio last night and it works, so i just need a shielded box and some appropriate cable harnesses to finish it up
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Oct 25, 2015 10:46
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word! my FFT-1 board showed up  time to plug this poo poo in and get some realtime spectrum visualization
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Oct 29, 2015 00:49
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Delurking, posting, wishing you all well. im being a dick and posting somebody else's antenna farm because he hasnt yet lol check out sniep's badass rotator and 6m moxon and that beautiful pic. dudes got a proper fuckin Station now  i've been popping over now and then to lend a handhope you guys are doing great and having fun burning yourself on the wrong end of the soldering iron. i rebuilt all my antenna farm and camo painted it, i will post pics next time i slither by. there are a couple good new satellites up that ive been trying to work. dit dit
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Nov 17, 2015 03:01
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welcome back! i really like the idea of a portable radio like whot sniep has been doing.
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Nov 17, 2015 03:07
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Korean Boomhauer posted:welcome back! i really like the idea of a portable radio like whot sniep has been doing. ya that's be done, it's just up on a shelf for now as a decoration basically ill drag it out for a field day for the kids or soemthing at some point but yeah getting that antenna setup done was my recent thing, so now i got that 6m directional i can aim hopefully theres some openings
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Nov 17, 2015 03:11
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i pretty much live in a hole and the repeater is blocked by development at the top of the hill so i dont know what i gotta do antennawise to hit the repeater now
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Nov 17, 2015 03:17
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xpost from hobby thread step 1 to setting up an APRS WX beacon - the WX sensor step 1 is complete  step 2 would be the TNC, and I got that. step 3 is the radio and antenna, and im getting the radio and i have the antenna i just need to put it up, cable it, then... step 4- some programming glue in the middle to set the beacons to the TNC and push them out!
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Nov 20, 2015 01:30
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Sniep posted:xpost from hobby thread what weather station is this? I want to replace the junk I've got now since the receiver unit crashes when my raspberry pi is reading data at the same time it's getting data from the sensors.
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Nov 20, 2015 04:04
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manero posted:what weather station is this? middlin tier acurite pro setup e: specifically this: http://www.amazon.com/dp/B011VG6XTI Sniep fucked around with this message at 04:24 on Nov 20, 2015 |
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Nov 20, 2015 04:08
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Sniep posted:middlin tier acurite pro setup Awesome. How are you going to get the data off it? My receivers are plugged into a raspberry pi and I use weewx to upload to CWOP, Weather Underground, and APRS-IS, but the displays have been super janky. This might be within my price range!
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Nov 20, 2015 05:01
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manero posted:Awesome. How are you going to get the data off it? The black unit with the antenna that looks like a wifi (its not) is actually like a sensor but that hooks into ethernet and uploads all that poo poo
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Nov 20, 2015 05:05
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What do those things do for power?
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Nov 21, 2015 06:08
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Progressive JPEG posted:What do those things do for power? the sensor outdoors runs off 4x AA batteries. It's supposed to get pretty good life, not sure in practice tho.
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Nov 22, 2015 00:51
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Sniep posted:the sensor outdoors runs off 4x AA batteries. It's supposed to get pretty good life, not sure in practice tho. we have a way-lower-end one that does wind, temp, pressure, etc., then radios it to a small display in the house. lasts for two years on 4xAA easily.
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Nov 22, 2015 02:19
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bumping this thread to report my first mobile hf qso. good poo poo. ignition noise is a [gendered insult].
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Dec 1, 2015 22:51
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one more antenna to go up on the top of the roof tomorrow or some time 1/4 2m arrow .. something to dedicate to packet 24/7 and leave my x200 for voice use it's a tad bit burly, all solid (that's not aluminum tubes, its aluminum cylinders) the main antenna mount to the antenna is solid copper too 
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Dec 20, 2015 05:38
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wheeeee i got my first out of state contact... 6m e-skip contact up in EN51. (DM79 here)
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Dec 26, 2015 04:55
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just built my own janky-rear end quarter wave ground plane antenna. need to figure out how/where to mount it and how to go about getting a wire run from wherever it is to my office, though for now even hanging up indoors it's helping reception a hell of a lot.
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Dec 29, 2015 03:41
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Sniep posted:wheeeee i got my first out of state contact... 6m e-skip contact up in EN51. (DM79 here) annnnd i just got my first DX, in Canada, Hi Dale thanks for the QSO.. QSL card incoming.
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Jan 2, 2016 07:06
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http://hackaday.com/2016/01/19/shmoocon-2016-reverse-engineering-cheap-chinese-radio-firmware/ Probably going to pick up one of these since the new radios from Connect Systems are taking forever to get out the door. DMR's looking super rad
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Jan 20, 2016 01:49
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sweet, I was thinking of buying the MD-380 just for a laugh, but then i already have a DP-770 even without adding things like D-Star or the Yaesu system, just making a DMR firmware with keypad programming would make it super useful
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Jan 20, 2016 21:25
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i bought a shortwave radio for myself it couldnt pick up anything not even havana... i returned it...
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Jan 22, 2016 22:49
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i didnt want to go through the effort of making an antenna or whatever im not all about that... i just thought it was stupid that gave the radio and they didnt even recommend making an outdoor antenna or whatever... :/
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Jan 22, 2016 22:50
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cannae change the laws of physics, captain
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Jan 22, 2016 22:52
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Mapparu posted:i didnt want to go through the effort of making an antenna or whatever im not all about that... i just thought it was stupid that gave the radio and they didnt even recommend making an outdoor antenna or whatever... :/ all you gotta do is get a really long wire and wrap it around a tree far away from you and then connect to the antenna that's on it. it just takes a long piece of metal, precise length doesnt really matter just as long as you can get it
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Jan 22, 2016 22:53
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