985 Workbench: 2025-09-08

My Week in Radio

  • I tried to get in with RF, but couldn’t make it, so on AllStar
  • packet radio for Winlink and BBSes
    • like my old modem BBS days
    • phone + btech HT
  • POTA, FT8 + CW
  • learning value of chokes in the right places: computer interference from RF
  • chasing CW POTA from home
  • saw more FT8 this afternoon on 10M after a summer of quiet
  • not ready to consider Winter Field Day and cold temps

Others

  • KC3SCY, Luke:
    • hamfests
    • check out Kutztown Hamfest coming up
    • 1929 hardware
    • practicing with CW on vinyl
  • W1RC, Mike:
    • hamfest in the rain is good for deals
    • Nearfest is coming up in MA
  • W8CRW, CR:
    • Mullica Hill Hamfest
  • WA3VEE, Ron:
    • acquired some rare Dimac gear, which preceded HP
    • clearing out more stuff.
    • breakfast coming up
  • KC3RFG, Jim:
    • antenna maintenance
  • KB3ZIM, Bob:
    • talked to W3GMS mobile a bit
  • KB3ILS, Keith:
    • Mullica Hill Hamfest in the rain
    • planning for Winter Field Day
    • got some parts for the parts box
      • power supply boards with heatsinks
      • some air variable capacitors
  • AB3AP, Mike:
    • looking forward to Winter Field Day
    • traveling with army spouse: Orlando, Hawaii
  • KC3SQI, Wayne:
    • antenna mast work, but not much
  • KC3OOK, Bill:
    • net control for Simplex Net on Saturday and Welfare Net on Sunday
    • got an HP spectrum analyzer from Ron
    • tower work coming up at Joe’s

Questions

  • KB3ILS, Keith:
    • Comment: POTA is great practice for CW, and KD3EE sounds easier to send than KB3ILS.
    • How do you clean up and make variable capacitors turn easily?
    • WA3VEE, Ron:
      • there’s an electronics-friendly lube from the same people who make deoxit
      • oxidation may not have any effect on capacitance.
  • KD3AIS, Tim:
    • He has a new vehicle with blanks in the dash. Can he add switches to the dash to switch on the radio? Should he use a relay instead of plain switch? What’s the difference?
    • KB3ZIM, Bob:
      • some equipment demands more current than a switch (and wiring to it) will allow, so then you need a relay.
      • avoid heating of the switch, too.
    • W8CRW, CR:
      • relay for higher-current hardware.
      • maybe avoid connecting the radio to the vehicle power considering warranty.
    • KC3OOK, Bill:
      • check with Harvey
  • KC3SQI, Wayne:
    • consider using a dedicated battery to avoid noise from the car electrical system
      • also keeps it from draining the car battery
  • KC3YSM, Steve:
    • second the idea of a small dedicated battery
  • WA3VEE, Ron:
    • 4 radios in the van, and none of them are connected to vehicle power system.
  • KC3NZT, Harvey:
    • a relay is popular, because the connections on the back of a switch are often too small to handle the current without heat.
    • use low current to control high current
    • low current to the switch also makes it safe to pick anything handy as a ground, so you only need to run one wire.
  • KC3YSM, Steve:
    • Dabbling in HF, and feeling like he may no longer be getting out like he had been. How should he evaluate his antenna? He doesn’t have an antenna analyzer yet.
    • Can we do an antenna day at the field day site?
    • WA3VEE, Ron:
      • excellent idea.
      • remember it could be the bands.
        • check solar weather
      • come to the Thursday roundtable to discuss.
      • dxmaps, dxheat, dxsummit
      • hf propagation maps on google
      • watch SWR on the 991.
      • analyzers: rigexpert, mfj, bird, etc
    • KD3EE, John:
      • let’s play at the next breakfast.
      • watch for solar storms
      • check that colorful chart on QRZ

See also