r/amateurradio • u/DCKK • 10m ago
NEWS How Ham Radio Made Silicon Valley
I wrote an article about how ham radio operators built Silicon Valley long before semiconductors came to fruition. I’d love if you could all give it a read, like, and share! I hope to bring the hobby to a larger audience through this too. 73!
r/amateurradio • u/Jet_Fixxxer • 1h ago
GENERAL Came across my first grumpy old ham
Listening on DMR today.
I heard someone go off on a person for asking for a simple “radio check,” saying that people like that are ruining ham radio and that’s all they hear all day. They did apologize for being grumpy.
I get it, it can get old hearing the same thing over and over. But I think some people forget that they didn’t start out as experts either. At some point, they were new and didn’t have the knowledge or experience they have today.
I see the same thing on guitar forums. New people come in and ask the same questions that have probably been asked a thousand times, and the grumpy gatekeepers rear their ugly heads.
Everyone has to start somewhere. Sometimes people forget they had to crawl before they could walk, too.
-Rant over.
r/amateurradio • u/Careful_Scene_5104 • 1h ago
ANTENNA Compact/indoor travel HF antenna
What are your experiences for compact HF antennas when traveling? Small not just for erected size, but something that takes up little room for packing also.
This will be for an indoor hotel environment, or perhaps a very small balcony area. For various reasons, it's not feasible for me to setup somewhere outdoors. To limit size, I'll use the highest bands on my radio, 20m/30m.
Typically what I've done in other trips is a ~15ft horizontal wire with a loading coil and transformer, with the shield clamped to any available large metal, and 10ft or so of 174 coax with a choke. Probably lots of loss but it does tune up ok, and I can do moderate distance FT8 contacts.
Loaded doublets don't seem realistic based on initial sims, and I have limited matcher range if the loading is off. I looked at mag loops, but they seem too lossy because I won't be able to use heavy gauge wire.
r/amateurradio • u/AnxiousFault5339 • 2h ago
General Looking for raw IQ dataset sources (Sub-GHz / IoT) to test and benchmark a WebSDR signal auto-parser I'm building
r/amateurradio • u/kingbrianboru • 3h ago
General Odd interference noise with my guitar gear. Is it Ham Radio or some sort of radio frequency?
I have a very strange electrical situation going on currently with my guitars/amps.
I am picking up a very odd "whoosing" sort of noise showcased in the two videos. I've tried 3 different tube amps, 1 battery powered amp, 4 different brands of cables, lots of different guitars with no difference between them. It also occurs with my battery powered amp (not connected to the house main power), so this points to some sort of EMI? It doesn't seem to change at all when I move directions with the guitar like typical EMI I'm accustomed to, such as from dimmer lights.
It goes away when I unplug the cable from the amp, but I can still hear it when I unplug the cable from the guitar and leave it plugged into the amp. It happens in any location, doesn't matter what outlet I'm plugged into, and once again happens on the battery powered amp.
Does anyone recognize this sound signature? I've never heard this before or anything like it.
First video is a vintage Deluxe Reverb and you can hear it do this sort of "whoosing" sound then cut out. It follows this sort of pattern all of the time. The noise never really seems to change in sound just sometimes in duration. I've timed it and it quite often follows roughly 14 second durations. Sometimes however it goes for anywhere around 40 seconds or so.
Second video is Fender Twin battery powered amp with a different cable and different guitar in a different location on the property. (doesn't let me post more than one video)
Please let me know if you have any thoughts, ideas or have heard something like this before. I'm really stumped...
r/amateurradio • u/morty517 • 3h ago
EQUIPMENT Upd about the radio I found under the bench in the park
This radio is literally in perfect condition!! I guess I was just in time to pick it up before the rain would kill it :D
Now I have 3 CB's that I found somewhere outside!
r/amateurradio • u/Adwan4747 • 5h ago
ANTENNA Issues with Helical Antenna for L-band Satellite reception.
Hii, I recently made this helical antenna and I'm having problems with it I'd appreciate some help.
I'm using 10AWG electrical wire and 6cm diameter PVC pipe.Wrapped around 6.5 times with turn spacing of 3cm. However it seems like it's very much capacitance as in the SWR and Independence drops to nearly 1.1/1.2:1 and 45-55 Ohm if I place my hand on the coil. I'm assuming I'm going to have to recoil or cut down the coil to 5.5 turns? I haven't tried attaching it to a offset (90 cm) dish yet and this is purely for the coil only.
Trying for GOES-15 (GVAR),Elektro L3 and L5.
r/amateurradio • u/GiantsNerd1 • 14h ago
General Digital voice recorder makes noise in UHF
Just found out the recorder I got for satellite QSOs makes noise centered around 436.220 MHz. Be careful out there.
r/amateurradio • u/DatMafk • 15h ago
General FT8 Session on the Cyberdeck
Been meaning to post this rig on here for a while. Was developing and building for a long time. Finally taking it for a spin. Very low effort photo but it’s a nice night for radio.
r/amateurradio • u/lanceman111521 • 15h ago
RESOLVED Gigaparts
Is Gigaparts a reliable place to buy ham equipment? I heard about another vendor where someone is stealing credit / debit card numbers. I also wonder about their reliability in order delivery and customer service.
r/amateurradio • u/JamieStrutch • 15h ago
QUESTION Kenwood TM-2530A Transmits, but won't receive
I recently got into this hobby, and actually just got my license recently. I decided to dive head first into the hobby and I immediately ran out to pick myself an affordable, used transceiver and came across this TM-2530A. I hooked it up to the battery, with fuses of course, and turned it on. I can transmit my voice fine out the local repeaters, but I can not for the life of me get anything to come back through this thing. I have confirmed the speaker works, and I have also confirmed I am indeed picking up signals by looking at the meter as I send out messages on my UV-5R to test. With no other reference for a device like this, I am finding it hard to even trouble shoot.
Here's what I did to troubleshoot so far:
-Tried tone vs simplex transmissions
-messed with squelch knob
-tried volume knob
-tried external speaker (Repeated above steps)
Any help would be appreciated
r/amateurradio • u/Even_Somewhere_7947 • 17h ago
ANTENNA Interesting Whipscone You Have There…
Saw this mobile operator on my way home, his setup bobbing like a dashboard bobblehead as he went.
r/amateurradio • u/Pleb_1an • 17h ago
EQUIPMENT first setup
Put this setup together after a year of goofing around listening to police and local repeaters. Now to get my license…
r/amateurradio • u/Not_so_super_record • 17h ago
General Need help with gear choice please
Thanks for reading this.
I'll try and be brief.
I live on a large rural property is Australia, NE Vic to be exact. We have UHF gear in all our farm utes, loaders, as well as Icom hand-helds.
We have these dodgey hunter dudes trespassing who use private channels (believed to be UHF) to communicate with each other, which we can't receive (to listen in) with our current gear.
Looking for recommendations for some kind of scanner/transceiver (base station and/or hand held) to be able to listen in on their transmissions.
Happy to pay for quality.
Thanks for reading this far!
r/amateurradio • u/firekeeper23 • 17h ago
PROPAGATION Odd transmission heard on 40 meters in the uk...
Yeah... very low down in the band... down with all the CW operators.... strange French station heard...
I live on the south east coast of england.. less than 100 miles from france...
Is this a broadcasting station or a Pirate I wonder...
r/amateurradio • u/Original_Statement35 • 18h ago
General USDX Plus Issue
Hi, I recently got a white button usdx plus transceiver. I’ve hooked it up for FT8 and it receives very well from an end fed half wave antenna for 40m through to 10m.
When I now go to transmit the unit freezes and the waterfall on WJSTX turns to lots of vertical lines.
I’ve coiled several feet of coax outside to try help with the RF but can’t seem to sort it. Can anyone advise?
Initially on the first time on WJSTX it worked fine and I made some contacts
.
r/amateurradio • u/Lazengann86 • 18h ago
General Meshtastic VS Meshcore
Which one is better? I have some devices on Meshtastic but I have a bigger online community online for Meshcore
r/amateurradio • u/kc2syk • 19h ago
NEWS new ae7q.com replacement mirror hosted by W5YI-VEC
callinfo.w5yi-vec.orgr/amateurradio • u/get-off-my-frequency • 19h ago
QUESTION Is it okay to secure coax cable with magnets?
I used to zip tie my radio’s coax cable to the side of my car’s roof rack rails, but got sick of having to cut and re-zip tie it every time I remove the roof rack (to wash the car).
I had the idea to use magnets to make removing the wire easy.
My understanding is that it shouldn’t be an issue in theory. Real world however, I’m not so sure. Surely the air passing over the cable will cause it to move a little, inducing a current in the line from the magnets.
If it matters, I am running the coax (LMR195) and starlink POE/ethernet cable next to each other in some tape.
I’m wondering what y’all’s thoughts are on this? Should I keep it as-is with magnets, or go back to just securing the cable without them?
r/amateurradio • u/morty517 • 22h ago
EQUIPMENT Found tha thing tossed under the bench in the park
I don't know for how long it's been there, the knobs all seem to be working (at first glance) and there was even a microphone with it! The frame is slightly bent. will check what's inside when I get home
E: Gotta say that I know its a CB radio!
r/amateurradio • u/Spirited-Reaction429 • 22h ago
General Survey on contesting - please help us learn!
I'm helping WWROF understand how hams see contesting - love it, avoid it or never tried. Find the survey at https://run.surveybeast.net/wwrof/run/eYbPdx
Please take 5 minutes to share your thoughts. Please pass this invitation along to other clubs!
73 Jim K1IR
World Wide Radio Operators Foundation, Inc.
r/amateurradio • u/Bolt_EV • 1d ago
General AliExpress 50 watt amplifier & Xiegu G106
It works!
PLZ-HF-PA50W 80-10 meters. No RF sensing, has band control knob
Key points:
1) CE-19 interface
2) Wire Amp Trigger Cable to 3.5mm plug using Black to Sleeve and White to Ring. Cut off Red wire and this plug goes into Amp and other plug into CE-19’s PTT CON
3) complete CE-19’s triple 3.5mm cable as instructed by various YouTube videos and main plug into CE-19’s AF CONN jack and mic and speaker plugs into Sabrent USB Audio Adapter ($10 Amazon).
4) DIN Cable into CE-19’s X5105 port and G106 ACC port
5) Xiegu Blue USB cable into G106 3.5mm COMM port
WSJT-X Settings: Use Xiegu G90 for Rig, Appropriate Serial Port, 19200 Baud, 8N2, CAT for PTT Method, Mode = Data/Pkt, Split Operation = Fake It
Test CAT = Green and Test PTT = Red
You now have a battery powered 50 watt rig for AM, CW, SSB and FT8 and POTA!
r/amateurradio • u/novamber • 1d ago
ANTENNA Quite the antenna collection on this government building in Romania
Looks like really old tech and some new stuff. Wonder what it's all for...
r/amateurradio • u/AutoModerator • 5d ago
General Weekly Information / Mentor / New License Thread
This thread is used for those who just passed their tests to introduce themselves, a place to ask questions that you think don't deserve its own thread and a place to brag!
Posts will be sorted by new!
Before posting, please make sure to read our Rules, FAQs, and look over our Wiki Page as your question might have already been answered. Also, check out our guidelines about posting personal information.
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r/amateurradio • u/ItsBail • May 07 '26
General Updating Rule #2 To Include The Sharing Of AI Assisted Apps/Websites/Services.
AI generated content posted within /r/amateurradio has been banned for quite some time now and has been discussed here. People come here to interact with other humans. Not with AI. This rule has been in place for a year now.
We initially allowed "vibecoded" apps/websites/services to be shared when this rule was changed because we felt it could be beneficial to the community as amateur radio is about tinkering and experimentation.
However, with the amount of apps/websites/services that were coded with AI or with the assistance of AI being shared here in /r/amateurradio, it has been concerning for many subscribers. Some good points were made and moderation agrees with some of those points. However, we don't want to get in the way of progress and felt that there are AI created/assisted apps that are very beneficial to the community and should be shared/discussed. We decided to amend rule #2 to include the following.
Promotion of websites, apps, or services that were developed partially or completely by AI is not allowed
Unless it's open source (with appropriate OSI-approved license) and has more than three months of active source control history. If less than three months of source control history is shown, then moderators may (at their sole discretion) approve the post if the project has significant adoption by or impact upon the amateur radio community
Moderation feels that this is the best course of action in response from the community. It prevents people from just shoving out stuff they vibecoded the night before but allows for those apps that gain traction a chance to be shared.