My Week in Radio

Contesting

I finished the FT Challenge. There was no special exchange this year. We could use other defined subbands in addition to the regular frequencies to alleviate crowding. We could work anyone, even if they’re not participating explicitly.

I operated QRP, so it was nice to find the quieter subbands and more FT4 activity. You earned multipliers for each 3000km, so I don’t really know on my score yet.

I found wsjtx-improved on the Debian Linux repository, so used that. I saw the color improvements, the better location labels with states, and it had filters.

AllStar

I learning some obvious things about AllStar: it can’t hear my DTMF if it’s currently transmitting, since it’s simplex, so it’s hard to control on a busy net.

Yagi in the Wind

Finally, I watched my home-built yagi flapping around on that windy day. I guess I can stop worrying about it, since it held up fine.

Listening to KX3B, I occasionally learn something. Some radios have a button or menu to do away with the offset on a repeater, so you can talk simplex on the output frequency when out of range of the repeater.

I’ve done this by accident.

I found the brand new wsjtx-improved available on my Debian unstable system. It’s the next beta plus some UI enhancements including filters, color, etc, better location labels.

This weekend was the FT Challenge.

I made about 112 contacts over 14 unique “letter grids”. I operated QRP (<5W), single operator, single radio. We scored points for each contact plus each 3000km distance on a contact, and the multiplier was that number of unique letter grids. I uploaded my logs, and it’ll probably be a while until I see an official score, but I figure I probably got about 2000 points.

7 December was apparently Skywarn Recognition Day, so a station in Mount Holly, NJ, WX2PHI, was celebrating by making contacts on the N3KZ repeater system, so at 5:15pm EST, I keyed up my HT to the mobile antenna on my car and reported 32F and clear sky. It was good to know I could key up the N3KZ node in York from over here in Lancaster.

The Yagi spun around like a wind vane at times atop its flagpole, but it held up just fine. The aluminum pole swayed quite a bit as well. I’ve wrapped a loop of cord around the pole to use as reigns. so I can spin it straight again without really going outside.

I used my Allstar for tonight’s 985 Roundtable as a test, since my antenna had been blowing around all day. I wasn’t not sure which way it would be pointing.

It’s really easy to miss the first word or 2, or prefixes of callsigns. I was listening along on RF as well. I got 2 random restarts of the Allstar connection, and I learned that I can’t send any commands to the radio while the node is transmitting simplex on RF.

The 985 Winter Field Day will be at Lines Self Storage in Chester Springs, PA.

I got Japan, Colombia, and Uruquay on 12m FT8 today. I got so much Japan from Hawaii, I assumed I’d not see it for a long time. Winter is good in 10M and 12M.

The 985 workbench suggested locking down the node to be safe, so I set only my node (63047) in the allow list via asl-menu and node configs. It needed at least one value, according to the UI, so I gave it my own node ID. It still allows me to connect to the W3GMS repeater, node 53085.

My Week in Radio

• Built an Allstar node from a PI 4 and a USB-C radio dongle to reach 985
• Stumbled into and recognized some Olivia-8/250 on 20M
• Lots of ISS repeater traffic at convenient times on my good ol’ 1/4 wave antenna in the tree
• Got the radio blog up-to-date with all my adventures
• Listened to Jim, AF3Z, talk about sideswiper keys, and I might give it a try as i’ve changed the way I’ve been using my iambic paddle to almost never squeeze.
• looking forward to FT Challege

Questions

• KC3WWC, John: I have the basic Allstar node configured. Should I leave it connected to 985 all the time? I recognize some of the repeater features, so what other cool things should I have this node do?
  • W3CRW, CR:
    • using it for a few years
    • not always connected
    • switch to other nodes
    • always disconnect from one node before connecting to another to avoid linking.
    • has a node in 2 vehicles to supplement the reception.
  • WA3VEE, Ron:
    • best thing for 985
    • not connected all the time
    • uses HTs anywhere in the house
    • operated at long distances
    • be careful to not cross-link
    • in vermont, connected to 53085, simplex 446.100, unknowingly connected the repeater to the entire vermont network
  • W3DIB, Greg:
    • Joe is adamant about avoiding crosslinks to other repeaters.
    • other danger: if you are always connected, someone else could link to you and cross-link.
      • prevent other nodes from linking to me.
      • disallow every other nodes
    • computer security:
      • keep the node up-to-date and secured.
      • it used to be ancient versions of debian and asterisk
      • now it’s much better….allstar 3
      • careful about forwarding ports to it.
      • uses a VM, flipperphone. will try to get a tutorial together.
    • W3CRW, CR:
      • supermon on the node allows cool monitoring with web access
      • On Tuesday’s at 20:00, there is a tech net on the East Coast Reflector. The net usually runs a couple of hours. You can connect, to the Reflector via Allstar on 27339, 45225 or 45192.
• KC3RFG, Jim: When you setup a station and all the gadgets in the RF chain, where does a wattmeter prefer to be?
  • NA3CW, Chuck:
    • it should be between transmitter and tuner, so you can tell when the tuner is right
    • sounds like bad cable or other installation problems?
    • RF getting back through the chain?
  • KC3RFG will check that jumpers are good
• W3DIB, Greg: On RF now, impressions of the NanoVNA?
  • W3QP, Tim:
    • 100% worth the money
    • depends on use-case
    • needs calibration all the time
    • can be fragile
    • great for building ununs, etc.
    • dedicated VNA can be much more convenient
    • uses nano vna saver python script to capture everything
  • KC3WWC, John:
    • so much cool stuff to measure, so opens up a whole world
    • lots of more features to learn on youtube every week
    • as a technical person, you’ll have a lot of fun.
  • KC3NZT, Harvey:
    • lots more data than a regular analyzer
    • maybe doesn’t need recalibrated all the time.
      • use saved calibrations
  • KC3RFG, Jim:
    • calibrated for each band, saved it, and recalls them.
    • does lots more connected to the computer