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Jim Silly-Balls posted:I never knew that was a thing that could even happen For those of us operating in large cities or high up on a hill near an urban area it’s a loving killer. Picking up images of out-of-band signals and blasting over weaker stuff. More expensive radios are better and have higher quality circuitry etc but you can’t always fight it. There are bandpass filters you can buy/make to help. Edit: look up selectivity vs sensitivity thehustler fucked around with this message at 17:40 on Apr 29, 2021 |
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Apr 29, 2021 17:37
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Since I already had an FT-817, I put an SMA-to-BNC adapter with a rubber ring on my HT so I can use BNC antennas on both radios. I also got a BNC-to-SMA connector to plug the SDR antennas into the FT-817.
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Apr 29, 2021 20:04
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thehustler posted:For those of us operating in large cities or high up on a hill near an urban area it’s a loving killer. Picking up images of out-of-band signals and blasting over weaker stuff. More expensive radios are better and have higher quality circuitry etc but you can’t always fight it. Oh, I get it, I thought they meant “overload” like damaging things, not just SNR fuckery and signals overlapping each other
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Apr 29, 2021 20:10
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Jim Silly-Balls posted:Oh, I get it, I thought they meant “overload” like damaging things, not just SNR fuckery and signals overlapping each other Oh yeah - not like that at all, don’t panic!
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Apr 29, 2021 20:28
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Jim Silly-Balls posted:I never knew that was a thing that could even happen It's kind of a lore thing that they intentionally designed the uv5r's rubber duck to be a functional part of the harmonic suppression/front end control for the radio, so when you put a real, "good" antenna on it the circuits in the radio suddenly eat poo poo, yeah.
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Apr 29, 2021 22:32
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cq dx cq dx cq dx https://www.youtube.com/watch?v=5_bHuCwKmkI
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Apr 30, 2021 02:12
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That seems like the most correct way to do it, it's just that none of us are that good.
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Apr 30, 2021 02:15
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yep a+ operator right there
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Apr 30, 2021 05:26
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The hand popping in with the cig really sells it
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Apr 30, 2021 16:55
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ham-adjacent, new MPPT board came in look at that cutie. Gonna throw it in a box with some powerpoles and break out my lil' 20 watt folding setup and see how it does. Should be able to handle a qrp rig and an HT no problemo with a usb light on the park bench once it gets dark.
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Apr 30, 2021 20:59
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Oh hey that thing is rad. What sort of battery are you running? will it support an AGM or Lifepo? May be buying a 90's battle cruiser radio in a ts-850sat today, sigh. My ts-590s does everything better in a smaller footprint but those 90 ~aesthetics~
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May 1, 2021 16:41
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dOouBble PpoSt Is anybody interested in practicing CW on the vail server or on 40m? I'm getting to the point I can copy 90+% at less than 10wpm and want to start getting ready for my first real QSO. Join us on discord and we can schedule some time https://discord.gg/DyjPbvEbby
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May 1, 2021 16:46
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60 mins of morse with copen on Vail has done more for my CW skills in that hour than I thought possible. Thanks, cruft. Edit: Then we all listened to manero in a park
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May 1, 2021 21:09
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copen posted:Oh hey that thing is rad. What sort of battery are you running? will it support an AGM or Lifepo? Hell yeah 850s own. Board looks like it's focused on lead-acid. I have four 35AH AGMs so I'm pretty well sorted there.
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May 1, 2021 21:21
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thehustler posted:60 mins of morse with copen on Vail has done more for my CW skills in that hour than I thought possible. Thanks, cruft. 
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May 1, 2021 23:07
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Jonny 290 posted:Hell yeah 850s own. Couldn't get it at the price I was hoping for, ah well. I have enough toys for now. Yeah those AGM's should be plenty to run QRP or even QRO for quite some time. doing CW QSO's is fun as heck. I'm hooked! way more engaging than just doing practice over and over.
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May 1, 2021 23:20
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thehustler posted:60 mins of morse with copen on Vail has done more for my CW skills in that hour than I thought possible. Thanks, cruft. Only 3 Q’s on 20 but it was nice to get out. 90F today and I think my PX3 overheated, but it was a blast!
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May 1, 2021 23:39
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I saw this pop up on woot today. Is this a decent step up from a USB sdr setup? https://sellout.woot.com/offers/radioddity-ga-510-10-watt-dual-band-ham-radio-1?ref=cnt_wp_0_3
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May 2, 2021 12:29
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net work error posted:I saw this pop up on woot today. Is this a decent step up from a USB sdr setup? It’s in the same category as a Baofeng. I’m not sure I’d pay a premium over something like a UV5R variant. Don’t get too hung up on “high power” in a handheld beyond 5w. It’ll get you on local analog repeaters and local simplex. You’ll find some commute time chat for sure. Probably some local club nets and storm chat. Like any handheld, you’ll have to go outside, especially to transmit. You’ll be able to listen any remaining analog public service type stuff, but don’t expect to scan super fast. It won’t do any of the digital decoding that you can do with an SDR, but an SDR in that price range can’t transmit either. They’re different toys, I think worth playing with both.
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May 2, 2021 15:33
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without a radio for the moment but trying to decode swradiogram over websdr has been fun when im not accidentally turning the moon into a potato that is
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May 4, 2021 00:58
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Crusader posted:without a radio for the moment but trying to decode swradiogram over websdr has been fun The potato moon is probably in a prophecy somewhere. Best be careful around toadstools and metallic chairs for the next week.
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May 4, 2021 01:02
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potato chip
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May 4, 2021 09:40
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Decoding on SDR is annoying because your soundcard seems to drift sometimes, I can't do WEFAX over SDR for that reason. (in a browser, yeah?)
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May 4, 2021 10:46
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thehustler posted:Decoding on SDR is annoying because your soundcard seems to drift sometimes, I can't do WEFAX over SDR for that reason. (in a browser, yeah?) yeup yeah i guess im gonna figure out my radio situation this month, have put it off long enough
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May 4, 2021 11:06
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 Got an arduino in the mail today and hooked up my key. Got a few more bits coming in the mail to add the straight key and put it in a little box. Thanks cruft!
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May 6, 2021 00:07
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copen posted:
Sweet! Looks great, and really helps drive home the "this is not difficult to set up" message. Can I put your photo in the README? I'm pretty sure my latest code will work on VBand too, with no modifications. It'll also work on BandLab, if you want to record some music with only three notes 
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May 6, 2021 00:33
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cruft posted:Sweet! Looks great, and really helps drive home the "this is not difficult to set up" message. Can I put your photo in the README? Hah awesome I’ll have to try out the music thing. But super easy to put together feel free to use the pic however
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May 6, 2021 01:26
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I got a fancy new scanner so I could hear digital stuff without setting up the laptop and dsd+, but now I've encountered encrypted signals for the first time and they piss me off. I want to hear everything dammit!! There seems to be near constant fbi/dea traffic which kinda surprises me since I'm not in a large city or anything. Anyway I know there's no way to listen to it and it would be illegal to do so, I'm just bored and wanted to post. Unrelated but does anyone know what these things are transmitting? There's a camera but there's also several antennas, they can't all be for the camera. They're all up and down I45 in texas 
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May 6, 2021 19:18
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Dastardly_Crapsack posted:I got a fancy new scanner so I could hear digital stuff without setting up the laptop and dsd+, but now I've encountered encrypted signals for the first time and they piss me off. I want to hear everything dammit!! There seems to be near constant fbi/dea traffic which kinda surprises me since I'm not in a large city or anything. Anyway I know there's no way to listen to it and it would be illegal to do so, I'm just bored and wanted to post. Looks like the hardware used for the traffic/alerting systems mesh. Might have some additional hardware on there, but those are up around the state.
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May 6, 2021 19:46
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 Made a 4:1 balun for a 40m portable windom I have planned. Also have an unused 10m dipole laying around that I may repurpose the balun from to make a 40m dipole for the house.
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May 7, 2021 02:49
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actually hit the button on my baofeng after a long time of not doing that. had a brief qso with a guy from up north and maybe also a guy in san francisco; i couldn't be sure 'cause it was really hard to copy. but anyway it was cool and i like talking on the radio
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May 9, 2021 19:28
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Finally got that data-mode board fabbed and they're outstandingly cool. I picked red for the first time and it's come out great. Soldered and worked first time (it is very simple, of course). Just need to order the optocoupler and USB to Serial adapter to make the automatic PTT work, for now the slide-switch is still used. Made for TRRS to use with laptops or tablets.  Best thing is with JLCPCB's way of doing orders I have 4 spares to give out or use as backups.
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May 21, 2021 15:25
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thehustler posted:Finally got that data-mode board fabbed and they're outstandingly cool. I picked red for the first time and it's come out great. Soldered and worked first time (it is very simple, of course). That's really nice looking. Tell me about the board fab process, because I am just about ready for this with the electronic bagpipes I've been designing. What did you use to lay the board out?
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May 21, 2021 16:02
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I made a PowerPoint for my local club which I may present when we get back up and running after Covid: https://www.dropbox.com/s/7jgzzqsf5ahdn62/Moving%20to%20PCB%20Construction.pptx?dl=0 Essentially it’s all in there but Kicad for schematic capture and PCB design and FreeCAD for mechanical integration Edit: Added the finished pics to my presentation  https://www.dropbox.com/scl/fi/mvoc6f8on7dkfc4mgzfmi/Moving-to-PCB-Construction.pptx?dl=0&rlkey=y010avhpzwfuo82agqhm5ipaz
thehustler fucked around with this message at 20:47 on May 21, 2021 |
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May 21, 2021 16:04
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thehustler posted:I made a PowerPoint for my local club which I may present when we get back up and running after Covid: https://www.dropbox.com/s/7jgzzqsf5ahdn62/Moving%20to%20PCB%20Construction.pptx?dl=0 Dang, you just happened to have a presentation put together answering my exact question! I installed Kicad, kicked the tires for 30 minutes, and decided I was too dumb to figure it out. But I'll give it another shot!
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May 21, 2021 16:11
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cruft posted:Dang, you just happened to have a presentation put together answering my exact question! If I remember later tonight I’ll dig out the resources that really helped me get it. Some YouTube videos and the like. Try and get used to schematic creation first. A to add a symbol, select your part, then click to place. Then join in wire mode, W to start a wire and K to end it. That part is fiddly. M moves stuff around when your mouse is over it (to move more than one thing you can draw a box to select and when you release it’ll all follow the pointer) and D I think is duplicate. After that you can choose your component footprints to match each symbol and save out a net list and move on to the PCB part. Edit: and yes I did - I am so excited about this part of the hobby and I think more people should learn about it and stop with crappy DIY construction methods of the past. Everything looks so shonky and fall-aparty! thehustler fucked around with this message at 16:54 on May 21, 2021 |
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May 21, 2021 16:52
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Here's a good tutorial series turning a puzzle from the game Shenzhen I/O into a real life version in KiCad: https://www.youtube.com/watch?v=Afu1GoA1cgM Also this is great to ease you in, a very simple board: https://www.youtube.com/watch?v=l9b_6WLemmg
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May 21, 2021 20:03
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Because I’m a stupid idiot I volunteered to be the net controller for the DMR net last night and I... didn’t completely hate doing it. Unfortunately I do hate time zones and most of you pricks are in America. Signing on at 2am when I was supposed to be going to bed in 15 mins and then spending 40 mins on air rag chewing was fun, but not ultimately sustainable. I was wondering if any Euro Goons, particularly U.K.-based (gently caress Brexit, it still counts geographically!) would be interested in a weekly net on our regular SA TG? I was going to suggest Saturday evening but on second thoughts Monday evening at, say, 9pm would work better for me. Saturday would mean our friends across the Atlantic can join in the fun, though. It’d be good to get more European representation around these parts and maybe get an updated callsign list going.
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May 22, 2021 11:58
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I need a bench power supply for building small stuff. I just need something that can put out 0-24V and a few amps that won't set my workbench on fire. God knows I'd love to get a good HP unit or something but they go for a lot--I'd like to stay around $100 or so. Recommendations? I see a bunch of stuff around $60 on Amazon, most of which look to be the same hardware in a slightly different case with different knob positions and, occasionally, labels like "VOLTACE"...
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May 28, 2021 00:44
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Pham Nuwen posted:I need a bench power supply for building small stuff. I just need something that can put out 0-24V and a few amps that won't set my workbench on fire. God knows I'd love to get a good HP unit or something but they go for a lot--I'd like to stay around $100 or so. Recommendations? I see a bunch of stuff around $60 on Amazon, most of which look to be the same hardware in a slightly different case with different knob positions and, occasionally, labels like "VOLTACE"... Is voltace the same as electromotive farce?
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May 28, 2021 00:46
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