21 Tech Net: 2025-02-23

My Week in Radio

  • I like radios with open software
    • F4HWN 4.0 alternate firmware released for Quansheng
      • includes fixes for the spectrum analyzer that I contributed
    • R1CBU 0.29.2 just released for Xiegu X6100
      • includes fixes for bugs I found and submitted
  • I tried some APRS to the ISS from the Btech UV-PRO
  • Did a little RTTY for NAQP
  • Contacted N4T DXpedition on 20M yesterday
    • My CW was pretty rough
    • I could hear them with the EFHW for 40M in a park,
      • but not the upgraded 107ft EFRW at home
      • probably orientation

Others

  • K3EA, Greg:
    • contests, space weather, DX
  • WB3LNY, George:
    • debugging power problems: tighten your lugs in your panel
    • “Pale Blue” is a company in Utah making rechargeable Li-Ion batteries with USB charging port.
  • VE3HOH, Pete:
    • designing an NVIS for 40m, fan dipole
    • maybe also a 10m vertical in it.
    • nice presentation from KA3TKW, Tom, on working satellites
  • KA3TKW, Tom:
    • new FM bird: Hades R, SO-124, no telemetry yet.
    • ISS repeater and upcoming passes
    • AO-123 is new, FM repeater: 435.400 FM.
    • Ham Lunch this Thursday, noon.
      • presentation: Beginners Guide to FM Satellites
  • KK4KKW, Steve:
    • some HF, but repeater started dropping
  • W3MW, Don:
    • trying to purchase a spectrum analyzer, but UPS isn’t delivering it.
    • starting up attic/roof work for antennas.
    • testing 10GHz setup soon
  • KC3ZBI, Ron:
    • working on antennas for some upcoming contests
tech  21  ka3tkw  net 

See also