985 Workbench Net - 2024-03-04

This Week in Ham Radio

  • I pulled my j-pole wire into a tree by string for tonight, so it’s outside the house.
  • Started testing a longer 71-foot (21.65m) EFRW after months of using the shorter 41-foot EFRW.
    • seems mostly the same, so far.
  • ARRL Internationl DX SSB Contest
    • First time using SSB on HF
      • Usually digital modes
      • Not a rag-chewer: here to discuss tech
    • 41-ft random wire
    • 10 watts
    • 42 valid contacts in 37 DXCCs
      • Did hit Russia, but then realized I had tuned too low for my privileges
      • Hit lots of other parts of Europe and South America
    • I was Surprised how well SSB worked
    • I might want a vanity url:
      • Shorter: less room for error
      • People don’t seem to expect “WW”
      • People misheard 2 -> 3
      • Might be easier to type
    • It was nice to chase, since I could pause, relisten until I got the call, etc.

Question about Tuning SSB

During the DX contest, people were tuned all over, not just on full khz. A woman with a higher voice confounded me for a moment as I tried to get her to sound right. I was tuning by 100hz, so some were boomy low, a bit high-pitched, and some were just right. Tuning people a little higher made them easier to read, but that probably makes me lower for them. I tried to keep them as low as I could understand. RIT/XIT might have been useful for longer conversations.

What’s the best practice tuning SSB to hear clearly and tx as clearly as possible?

985 Workbench Net - 2024-02-12

My Week in Ham Radio

  • CQ WPX RTTY contest
    • Chased 41 contacts
    • Called CQ with no responses
  • Played in the front yard getting my existing random wire a little higher in the tree
  • Running around 20 minutes before this meeting to try to get my 2m antenna in a place that makes sense. I failed, so I’m on EchoLink.

Others’ Questions

  • Number codes? 73, 72 best regards in QRP.
  • Recapping equipment
    • Check temperature ratings of capacitors 85C vs 105C
    • Keeping voltage applied regularly keeps a capacitor in good function
    • Try to operate capacitors nearer to their V rating to keep them “formed up”
    • Is anything leaking from the bottom of the caps
    • Signs of problems?

985 Workbench Net - 2024-02-05

My Week in Ham Radio

  • Chuck’s repairs sound fascinating
    • enough basic electronics from childhood to get to general
  • HF radio
    • QRP X6100 with 3rd party firmware - R1CBU
    • Maintainer is flaming out
      • ungrateful complaints
      • unhelpful bug reports
    • Source code is available, so some of us may pick it up
    • UI is an app running on a small embedded linux computer
  • Flashed new firmware onto my Quansheng UV-K5 HT
  • Restrung a random wire
    • From a steep sloper into a tree in front yard to flat horizontal to the shed in the backyard.
    • Patterns in FT8 contacts look a little different
  • Learning CW
    • Morse machine
    • All 40 characters they quiz: Koch method
    • Try the feel with a 3d-printed iambic key
    • Next try a different character set: cwops
    • Next more traditional copying exercises

Question

  • Often rebuilding and testing antennas
    • On HF, I can test with FT8 and pskreporter
    • See effect of my changes and maybe more propagation conditions
    • For VHF, how variable are the conditions?
    • On the fringe of accessing 985.
    • Slight repositions with unintuitive results
    • What conditions affect propagation to a repeater like this one?
    • What can I measure?
  • Requirements for the Scout badge in radio?

985 Workbench Net - 2024-01-29

My Week in Ham Radio

  • FCC/ARRL meeting in Harrisburg
  • Activated a state game land park after the meeting
    • 10m
    • near Middletown
    • Lots of west coast
    • Compared vertical whip with jumpered coil vs efrw
  • Built more wire j-poles for more permanent mount
    • NanoVNA is lots of fun, since I can now measure and tune any antennas
  • Field day at Welsh Mountain with W3RRR club
    • Repack bag yet again for portable op
    • Learned about winlink
    • Operated outside on 80m at 3pm, so slow
  • Clipperton on 40m FT8
  • Back to learning CW on morse machine at LCWO.net
    • 20wpm
    • Single character at a time, waiting for me to answer before proceeding

985 Workbench Net - 2024-01-22

My week in ham radio:

  • Discovered the 985 nerds podcast
  • Watching Clipperton split operation
  • Lunch in Harrisburg with ARRL & FCC
  • ISS repeater broke squelch @ 2am
  • Looking for a Winter Field Day
    • 985 is doing one
    • Will probably check out a more local one, like W3RRR’s event

W3GMS Workbench - 2023-11-27

I pass off to KC3SCY, Luke, or AF3Z, Jim.

We discussed baluns:

  • 4:1 balun
  • 1:1 balun will let a dipole tune wider on any band
  • 9:1 <-> 1:9 can transform for long runs of transmission cable