RFI in the Car

I was out mobile, but I couldn’t check-in to the 985 Workbench. I had a weak signal, and I got a boost in interference when car powered off. It was mostly through the mobile antenna/coax, and it was enough to drown out W3GMS. I confirmed with spectrum analyzer on UV-K5.

I also had my AllStar 3 node but it wouldn’t connect either. The node connected to my phone hotspot fine, and it got an IP and all that. I could use the web interface or DTMF, but DTMF was flaky/slow. While debugging, I connected to the parrot node (55553) fine, but I only got “connection failed” from W3GMS (53085). I connected to W3GMS fine from home network the next morning.

Tornado Warnings

I took down the YAGI flag pole during a tornado warning. While I had it down, I attached the paracord that turns it with zip ties to make positioning reliable and less slippery. I shifted the paracord that secures it to avoid wear, and I straightened some elements.

yagi  home  tornado 

985 Workbench: 2025-05-26

my week in radio

I did some FT8 at 1W while camping and activating some POTA. I compared a 41-ft EFRW with a 17-ft vertical whip. The resonant vertical was booming.

I also read that lots of CW contesters are using computers to send that fast.

Others

  • W8CRW, CR:
    • helped take down an antenna
    • local nets
  • AB3AP, Mike:
    • some CW contacts
  • NA3CW, Chuck:
    • PM/AM pre-net and net
    • taking down that tower with CR, Joe, and gang.
    • reclaiming some of the antenna hardware
    • working on Joe’s tower
      • assemble to find the problems
      • very close
  • KC3OOK, Bill:
    • helped with Joe’s tower
    • break from the simplex net
  • KC3SQI, Wayne:
    • finding 15m and 17m open
      • Germany, Alaska, Florida, etc
  • AF3Z, Jim:
    • intermod sounds like a spaceship
    • considered doing WPX and a QRP sprint, but missed them.
  • W1RC, Mike:
    • configuring a new AllStar node
      • got a node number
      • downloaded the pi image
      • written to a card
      • named it allstar.local, but can’t get the browser to it.
  • KD3AIS, Tim:
    • learning about noise on the waterfall from harvey
  • WA3VEE, Ron:
    • testing sessions coming up
    • upcoming fox hunt
  • W3JAM, Jeff:
    • assembling some spare masts for an OCF dipole
    • simplex net
  • KC3YTD, Steve:
    • new Yaesu 991, working well for first HF

Questions

  • AB3AP, Mike:
    • Is anyone successful running trustedqsl (tqsl) on Ubuntu 25?
    • contact Dylan, K3DCN, for help
    • KC3WWC, John:
      • I have it working on debian unstable, from the standard repo.
    • AB3AP, Mike:
      • got it working!
      • using the wrong name: trustedsql instead of qsl
  • W1RC, Mike:
    • getting AllStar node booting, but can’t access it by its name, allstar.local.
    • W8CRW, CR:
      • mobaxterm, like putty, to setup through text, instead of web interface
    • KC3WWC, John:
      • I often don’t see .local network work either
      • try IP addresses near your computer
      • login to the configuration of your router to see the list of nodes

Broken EFHW

The home antenna wire comes down every once in a while. I soldered and re-hung it, and it looks good. It seems to need a little power put through it, and then the SWR looks good. I wonder if some static accumulated, and that is causing higher SWR for a moment.

efhw  hf 

AllStar on Cellular Hotspot

I confirmed that my AllStar Node is connecting to my Android hotspot when away from home. The node got a crazy unfamiliar 10.x IP, so I had no hope of remembering it. I still have trouble remembering the DTMF codes that I setup.

US-4361 King's Gap

The activation at King’s Gap Environmental Education Center, US-4361 was tough-going, even though I was at the top of the mountain. I used the GRA vertical whip with tapped coil. Internet access flaked early, so successfully spotted myself on APRS with APSPOT.

pota  hf  x6100  aprs 

1W on 40m

Today I had some success operating 1W on 40m.

At 1330UTC, I made a handful of contacts, and got a strong -05 report. I even got a POTA in FL.

40m  FT8  POTA  QRP  Radio 

21 Tech Net - 2025-05-18

My Weeks in Radio

  • French Creek State Park (US-1355)
    • All FT8, 1-2W.
    • Tried PSK, but no one responded.
  • 80M EFHW, 130ft
    • Built a 64:1 unun for it to help match better than the 49:1.
    • Resonant in many places, maybe need tuner in one band.
  • Customizing Allstarlink node to make it easier to manage.
  • New R1CBU firmware for my X6100.
  • Getting tempted about the zbit or sbit, but the X6100 scratches that itch for being able to customize it.

Others

  • WB3LNY, George:
    • Dayton Hamfest.
  • KA3TKW, Tom:
    • No net on holiday weekend.
    • Enjoying zbitx and zbitx.
    • Visited club in Letterkenny, satellite presentation.
    • New power connectors for the zbits.
  • VE3HOH, Pete:
    • Tried 6M with a quarter-wave on mobile.
      • Worked well, trying some repeaters.
      • Working simplex on trip from Pottstown to Pine Grove.
      • Fixing connectors.
      • 100W.
  • W3MW, Don:
    • 2.4GHz station ready to go with loop yagis.
    • Soon will have 5.6GHz by next month.
    • UHF pre-amp.
    • Pre-amp is more necessary, at the antenna, on these higher frequencies.
  • KC3VZU, Bob:
    • Looking into RADTEL 880 w/ HF, VHF, UHF, SSB, 10W.

Swap and Shop

  • W3MW, Don:
    • IC7300, 100w, portable, tuner, pack setup.
    • Looking at Yaesu, FTX-1.

Allstar Link Macros

I finally got my reboot command working correctly on my Allstar node:

79 = cmd,shutdown -r now

I also set up a convenient shortcut to connect to the 985 Allstar node. Now, instead of typing out the full connection string, I can simply dial *51* to connect. The macro definition for this is:

[macros]
1 = *353085

I can *6 to quickly disconnect from all active connections.