New Antenna DX

The new 107-ft (32.6m) EFRW in the backyard is doing OK, and I’m getting pretty lucky with low power on 10M FT8.

  • Japan (10500 km): 5W, 2025-02-10 2245 UTC
  • Norfolk Island (14000 km): 2W, 2025-02-11 2238 UTC
antenna  hf  dx  efrw  home 

985 Workbench: 2025-02-10

My Week in Radio

  • Reconfigured fldigi with some more modular macros and used them for a short time for CQ WPX RTTY contest
  • Replaced my 71-foot EFRW with 107-foot wire
    • ATU works a bit harder than the previous, but stretching the counterpoise in a different direction helped.
  • 5W into the wire got me a contact to Japan on FT8

Others

  • KC3SCY, Luke:
    • building out his radio desk
    • new Drake TR-4A and matching transmitter
  • W8CRW, CR:
    • Nets
  • WA3VEE, Ron:
    • checking out and testing equipment
    • interviewed on podcast: “operation freedom. ham radio in public service.”
    • KB3SVC presented on senior scams at another meeting
  • W3QP, Tim:
    • 11 summits in Virginia!
  • KC3TYX, Vic:
    • VHF nets, No HF.
    • hiking and geocaching.
  • NA3CW, Chuck:
    • 985 activities
    • tower work at Joe’s when weather permits.
    • acquired merantz professional CD recorder
    • PM/AM net pre-net host. much better at 3:30pm for pre-net.
  • KC3OOK, Bill:
    • 985 nets
    • South control for Simplex Net
      • 37 check-ins with only 2 controls
    • Passed along some gear to others via Joe
  • KD3AIS, Tim:
    • drove to Parkesburg, and remembered to bring mobile glass-mount antenna and HT, so could contact to the repeater via RF.
  • AF3Z, Jim:
    • working on Omni 6, which is broken
      • getting worse as he diagnoses
    • visited old shack in basement and rearranged it
      • finally returned to MB102 heathkit rig with power supply
      • replaced some capacitors
      • now working!
  • KC3SQI, Wayne:
    • email reminder was appreciated to host the workbench
  • WA3KFT, John:
    • playing with some heathkit lunch boxes.
      • 2m, 6m, 11m
      • doesn’t have the 10m
      • they’re regenerative receivers
      • not very efficient transmitters
    • vibrator power supply for radios that run off 120V AC
    • was convenient back in the day to be able to hang equipment from the old dashboard in cars.

Questions

  • KD3AIS, Tim:
    • Given his recent foray into mobile radio and a glass-mounted antenna, he’s looking at mobile rigs. He’s seeming some that are higher-power single band, and some lower-power dual band. Also seeing single-band and dual-band antennas. But no 70cm single-band antennas. Recommendations and considerations?
      • WA3VEE, Ron:
        • Ron just runs high-power dual-band.
        • there are lots of 70cm repeaters around the area.
        • magmount antennas on top.
        • don’t worry about 65W vs 50W. close enough.
      • W3CRW, CR:
        • found a 70cm-only antenna on amazon.
        • still recommend dual band
      • WA3KFT, John:
        • dual band antenna is nicer for 70cm.
        • he dedicates a 70cm antenna and a 2m
      • KC3NZT, Harvey:
        • don’t worry much about power on dual-band radios
        • watch for nicer features
          • full-duplex
          • digital control
          • dual-watch
      • K3YVQ, Jack:
        • has Larson NMO 270 antenna to give away
      • KC3OOK, Bill:
        • recommended a couple radios with those features
      • NA3CW, Chuck:
        • dual-band rigs run less power because they’re a compromise.
        • single-band rig is no compromise, but more limited in features.
        • there are 470MHz antennas for commercial bands
        • feature: wishes his rig had split tones.
      • W8CRW, CR:
        • crossband repeat
        • split tones
      • WA3VEE, Ron:
        • Yaesus generally don’t support split tone
        • ICOMs generally do
      • W3GMS, Joe:
        • ICOM IC-2730A is great
          • split tone
          • good cooling
          • power makes a huge difference when you’re trying to open squelch on a repeater
          • nmo mount is nice, because you can swap specialized antennas.
      • KC3SQI, Wayne:
        • run IC-4730 for split tone and crossband
  • KC3WWC, John:
    • Adding another dual-band antenna outside, probably dedicated to APRS. How close can they be or how should they be arranged?
    • WA3KFT, John:
      • 5 vertical antennas: 10, 6, 2m, 220, 440.
        • 2m and 440 are harmonically related, so separated
        • all mounted on a bar.
        • 440 and 2m are separated 7.5 ft, so they don’t interact.
        • 35 ft off the ground.
        • can’t separate them that much on a car.
    • KC3SQI, Wayne:
      • if the antennas are harmonically related, attempt to separate at least 2 wavelengths
      • dual band antennas are
      • DX Engineering has an antenna bar already setup with multiples
    • WA3VEE, Ron
      • Diamond dualband is good. mounted on front.
      • 220 in the middle
      • something else on the far back of the vehicle.

985 Workbench: 2025-01-03

My Week in Radio

  • KC3TMZ, Matt:
    • 3d-printing and building antennas is great
  • Trying to build a tactical delta loop
    • 4:1 balun
    • 2 17 ft whips
    • 25 ft wire for the top
    • 3d-printed base
    • not great so far
    • will be using the 4:1 with other antennas, like rybakov
  • ISS pass with APRS
    • decoded relayed packets from Pittsburgh PA, Smyrna DE, Atlanta GA.
  • Bluetooth control of a radio is pretty convenient, big phone screen

Others

  • KC3TMZ, Matt:
    • ordered a bunch of ferrites, enameled wire,
    • 3d printing some antennas
  • KC3NZT, Harvey:
    • met up with KD3AIS
  • KC3RFG, Jim:
    • organizing the shack
  • NA3CW, Chuck:
    • PMA AM Net on 75m
      • it’s moving later due to propagation: 5pm
    • working on Joe’s tower project
  • KC3OOK, Bill:
    • drywalling the hamshack
    • working on Joe’s tower
      • almost all bolts installed an tightened
      • guided tower with rollers, aligning
  • WA3KFT, John:
    • nets: Packrats, DelVa, Weather
    • spoke to David in Texas on 15M
    • Bob on 10M in Virgin Islands
    • nice band openings
  • KC3TYX, Vic
    • VE accreditation.
    • helped with first VE session.
      • all computerized
      • worked with WA3VEE
  • KC3SQI, Wayne:
    • chasing POTA
      • West coast, 20M
  • K3YVQ, Jack:
    • working on go-box for crossband repeater
    • relay from HT on a hike to car with 50 watts
  • KD3AIS, Tim:
    • visited KC3NZT
  • W3QP, Tim:
    • preparing for some SOTA activations
  • WA3VEE, Ron:
    • worked a VE session
    • organizing the shack
    • working on lesson plan for technician review to prep for general
      • short videos / presentations
      • can arrange to do some teaching up here instead of just in delaware
  • N3CRE, Charlie:
    • trying to hook a headset to FTM-500
  • W3EMF, Jerry:
    • originator of the Workbench Net
    • new 2M rig in vehicle to access 985 more

Questions

  • KC3TMZ, Matt:
    • Purchased a new antenna that may want ground radials. What’s the best way to connect temporary radials to an antenna?
    • KC3NZT, Harvey:
      • is removable a requirement?
    • KC3TMZ, Matt:
      • radials can stay, stapled to the ground
      • he wants to remove the vertical element, so dogs don’t tangle leashes
    • KC3NZT, Harvey:
      • terminate all radials to 1 ring terminal and screw that right to a ground rod
      • it’s a 20/15/10M trapped vertical (he sold it to him)
        • doesn’t need guyed
    • KC3TMZ, Matt:
      • liking the idea of a metal pipe into which he can just drop the antenna
    • WA3KFT, John:
      • worked in a AM broadcast
      • drive a pipe into the ground to slip antenna into or onto
    • NA3CW, Chuck:
      • drive a pipe into the ground, flush
      • has a PVC pipe that holds up an inverted-v
    • KC3NZT, Harvey:
      • copper braid with ring terminals, inexpensive on amazon
      • be careful to not short feed with ground in metal pipe socket
  • KC3NZT, Harvey:
    • magmonut often comes with a length of coax. is there a magmount wiht an SO-239 so you can do use whatever coax you want?
    • W8CRW, CR:
      • make your own.
    • WA3VEE, Ron:
      • make your own.
    • KC3SQI, Wayne:
      • there is a bulkhead mount with SO-239 for the antenna that could be added to the magnet
    • K3YVQ, Jack:
      • there’s an empty magnet mount
  • KC3WWC, John: I have a talent, how do we avoid doubling during checkin?
    • AF3Z, Jim:
      • don’t worry about it
    • NA3CW, Chuck:
      • silent “this is”. grab carrier, drop it, then give call.
    • KC3SQI, Wayne:
      • some nets use “this is” protocol. that lowers the chance
      • net host resolves it
    • KC3NZT, Harvey:
      • click method, and it doesn’t matter
    • AF3Z, Jim:
      • bigger issue is digital link people and leaving enough space
    • WA3VEE, Ron:
      • pulse/click method, silent “this is”
      • net control watches for doubles
      • net contral asks for checkins
  • K3YVQ, Jack:
    • Can I combine 2 batteries of different capacities in paralllel on a bus to get larger capacity?
    • WA3KFT, John:
      • yes, it’ll work.
      • has a bus with power supply and battery on a bus of banana plugs
      • ok if they’re the same voltage
      • plug the batteries on the ends, and radios in the middle
    • KC3NZT, Harvey:
      • batteries are sometimes limited on max current
      • lithium batteries’ voltage drops very late in discharge
      • a deader battery could be a strong current draw
    • K3YVQ, Jack:
      • they have BCM, so they protect themselves.
      • may look into 12V cigarette lighter to power pole charger.
  • N3CRE, Charlie:
    • Having trouble pairing a wireless BT headset with FTM-500.
    • K3YVQ, Jack:
      • check that the bluetooth protocols are compatible
      • maybe a firmware upgrade will fix it

After Party

  • KC3NZT, Harvey:
    • when we lack questions, we should present little lectures on testing and equipment.
    • WA3VEE, Ron:
      • has demonstrated diagnosing feed line problems
    • NA3CW, Chuck:
      • some things can be explained verbally, others more visual
    • KC3NZT, Harvey:
      • a list of resourcse and videos could live on 985 website
    • WA3VEE, Ron:
      • lots of zoom practice with document camera, etc in his shack
    • KC3WWC, John:
      • I’ll bring my balun around for diagnosis on video
      • I have watched a video on using nano vna to test filters and baluns
      • I like to optimistically use it first, then dig in more if needed
      • I think that keeps me doing stuff that I might otherwise not realize to be possible
      • document my beginner experiences on a blog for my reference and others
    • W3EMF, Jerry:
      • echolink in the mobile
      • calling from Elizabethtown

ISS APRS

I caught word that ISS was passing in a moment, so I tuned UV-PRO to 145.825MHz, the APRS digipeater on ISS. I heard packets from Pittsburgh, PA; Smyrna, DE, and Atlanta, GA. I tried to ping out my location a couple times, but it looked unheard according to https://ariss.net/.

iss  aprs  uvpro 

21 Tech Net: 2025-02-02

My Week in Radio

  • I did field day with a group out toward Parkesburg
    • I saw a fancy satellite station for sideband, etc in action
  • Attended the lunch on Thursday
  • Had Direwolf monitoring a plain ol’ Quansheng to decode packet
  • Btech UV-PRO
    • inexpensive
    • APRS location and messaging
    • KISS TNC over BT
    • WoAD on android
    • Winlink
    • Terminal to access BBS on KA3TKW
  • Trying to build a tactical delta loop
    • 4:1 balun
    • 2 17 ft whips
    • 25 ft wire for the top
    • 3d-printed base

Others

  • K3EA, Greg:
    • QSO parties
    • upcoming contests
    • Solar weather
    • DX
      • Wake Island on 10M
      • Gambia, 10-20m, FT8
        • our sunrise
      • Rowanda, 10-30m, FT8, CW
    • New DXCC programs
    • Cards from bureau
    • Will talk at march lunch about Hamcation in Orlando
  • WB3LNY, George:
    • headed to Hamcation in Orlando
  • KB9AWS, Bern:
    • New batteries
    • Appreciate the group you have, use the repeater
  • VE3HOH, Pete:
    • Working on a combo nvis dipole for 40 meters
      • 20 ft above ground
      • Inverted V
      • Combo it with a vertial for 10M
    • Looking at military antennas for manpack
      • 30MHz-512MHz rubber duck on eBay
    • Looking at some low-power, remote receivers
  • K3SWZ, Glenn:
    • Worked 20M helping test a new DX station in Kenya
  • KA3TKW, Tom:
    • 145.825MHz ISS packet digipeater
  • KB3MIJ, Tray:
    • Repairing some repeater hardware
    • Got a replacement generator for a site
  • K3DMM, Denny:
    • Lunch on Thursday
    • HT with Arrow to make ISS contacts and SO-50
    • Try Arrow from inside
  • KC3ZBI, Ron:
    • Lunch on Thursday
    • Starting figuring out LoTW
  • N3LJP, Bill:
    • Looking for charger for AA, AAA lithium batteries that runs off 120V.
    • KC3BOB, Bob:
      • Hobby King is a good mail-order shop for battery needs
    • KC3WWC, John:
      • I like my EBL chargers off Amazon
      • Inexpensive
  • KC3VZU, Bob:
    • Ham lunch, liked the presentation
    • Going to get HF rig up and running

Swap and shop

  • WB3LNY, George:
    • Looking for a teletype
  • VE3HOH, Pete:
    • Some yagis for weak signal work
    • Drake TR7
    • Kenwood 830
  • KA3TKW, Tom:
    • 25W Motorola mobile rigs
    • RadioShack SW receivers
    • Panasonic SW portable
  • KB3MIJ, Tray:
    • Jet turbine generator
21  technet  ka3tkw  net 

UV-PRO Firmware 0.8.0

The HT app presented the firmware update right away upon launching, so now I know it can do the upgrade. The first time I updated the radio, I used the older “BTech Programmer” app.

The update promises some fixes around

  • ack in in-built APRS,
  • TNC stability

I discovered in the app the setting: Radio -> ID Settings -> 3 Checkboxes (ID, Location, Check) could be turned off to get to “none” to disable post-TX noises, which is “PTT Release” in the radio.

Those settings kept gettign synced from the app to the radio, so now they’re set the way I want it to stay. I could have also disabled “Synchronous Signal Settings” in the app, but the mismatch seems like it would have been confusing.

985 Workbench: 2025-01-27

My Week in Radio

  • Really glad to get to field day with 985.
  • Customized my AllStar node for better mobile use:
    • DTMF to shutdown
    • DTMF announce IP address
    • Announce ip with the start up macro
  • Btech UV-PRO with KISS TNC support
    • It does APRS internally
    • KISS TNC for packet to connect apps on the phone via bluetooth
      • AprsDroid
      • WoAD for Winlink and serial terminal

Others

  • W8CRW: field day
  • WA3VEE: field day, photographs!
  • KC3SCY, Luke:
    • Made 50 contacts on CW, goal was 10
    • Got a nice Drake 4x to help with CW and a new key
  • W3FHA, John:
    • Working on a radio crammed with tubes
  • W3JAM, Jeff:
    • Heard W3R on 80M CW, but didn’t really operate
    • Pelican case for Bird meter and slugs for it.
    • Checked into Simplex Net and Welfare Net
  • KC3HQZ, Jean:
    • Fun on Sunday at 985 field day
  • KB3ILS, Keith:
    • Winter Field Day
    • Logging contacts for Joe
    • Heard, “I’ve been waiting for you” from AF3Z under another club call
    • Tried Joe’s Begali straight key
    • Making room for a straight key
  • AB3AP, Mike:
    • Bought a QSL card dated from 1949 that belonged to Dick, W3ORU, a recent SK from 985.
  • WA3KFT, John:
    • Worked field day a bit
  • KC3TYX, Vic:
    • Made a few field day contacts, but not much. He didn’t hear W3R.
  • KC3YIG, Dave:
    • Fun at field day
  • NA3CW, Chuck:
    • Setup for WFD on Friday
    • Didn’t operate the event
  • KD3AIS, Tim:
    • Great time at 985 field day on Saturday
    • Met Harvey, KC3NZT
  • KC3OOK, Bill:
    • South control for simplex net: 42 contacts
    • Welfare Net
  • W3QP, Tim:
    • Fun at 985 field day
    • Had lots of RFI from electrical lines and other antennas
  • N3CRE, Charlie:
    • Visited 985 WFD
  • W3MFB, Mike:
    • Saw 985 field day on Sunday
    • Talked to KD3ACF, JT, a bunch
  • K3YVQ, Jack:
    • 985 WFD
    • Learned about CW from Keith
  • AA3LH, Leon:
    • Fun at field day, made some contacts
    • Looking forward to Summer Field Day
  • KD3ACF, JT:
    • Got a cage for 705 and next POTA activation
    • Long chats with W3MFB
    • POTA hunting
    • New AllStar node
  • AF3Z, Jim:
    • Operated Cornwall Ranger Station for WFD
    • Indoor station: 2I
    • Jim was their main CW op: 130 QSOs
    • Highlight: Saturday night, 80M, finally found W3R when Keith came to him.

Questions

  • KB3ILS, Keith:
    • When operating straight key,
      • Do you rest your forearm on the table?
      • How do you grip the straight key?
      • Operation tips?
    • WA3KFT, John:
      • 3 fingers on the knob, arm on the table, only wrist movement.
    • NA3CW, Chuck, concurs
    • AB3AP, Mike:
      • European style: float the arm
    • AF3Z, Jim:
      • In European style, key is often on the edge of the table.
      • Rests his arm on the table, grip thumb + next 2 fingers
      • Holds the key on his leg when camping
    • KB3ILS, Keith:
      • Luke is the operator he wants to emulate
  • KC3YIG, Dave:
    • Electrovoice 719 mic needs a cartridge replacement. Tips, sources of parts, etc?
    • NA3CW, Chuck:
      • No experience changing mic cartridges
      • That mic seems similar to the D104 with a crystal cartridges
      • Specific cartridges can be hard to find
      • Some people seem to replace the cartridge with one from Heil
      • With age, cartridges don’t sound right
  • KD3AIS, Tim:
    • Has a Diamond 510HDM antenna, 17ft tall, can the antenna be placed near trees to hide it?
    • WA3VEE, Ron:
      • You’re sounding good, so no hurry to put that up.
      • Ron’s antenna is next to a bunch of bushes
      • Foliage won’t attenuate much
      • It’s fine
    • WA3KFT, John:
      • Long antennas have nice gain
      • Tie a pipe hitch to the antenna 1/3rd down from the top
      • Hoist it to hang in the tree
    • NA3CW, Chuck: Feb 2018 QST, “Live Trees Affect Antenna Performance”
      • Did simulations with HF
    • WA3VEE, Ron:
      • His installation is 3-4 feet away from the tree and elevated on army mast
    • AF3Z, Jim:
      • Has a tree in path of beam, and it doesn’t seem to affect anything.
      • Hangs other antennas
    • KC3SQI, Wayne:
      • D300 stuck on a 2-inch piece of PVC attached to the deck railing
      • 10 ft from the ground
      • When he got above the roof, got an extra 2dB into repeater
      • Doesn’t make a lot of difference

2025 985 Winter Field Day

The 985 group held their winter field day at Lines Self Storage. They had 5 stations in trailers and tents. They worked some satellites and mostly HF. There was hundreds of feet of coax feed line all over the place.

I aw KC3NZT, Harvey, operating a satellite station with special hardware. Harvey also called CQ on HF. He’s a machine, logging hundreds of QSOs.

I used a headphone splitter to listen to another operator, Bob. I copied some CW, but not a lot. I listened for some digital and found a bit of RTTY, but it was for the BARTG contest, not WFD. I made some SSB contacts on others’ radios that were setup for the weekend.

I hung my rolled slim-jim to call on 146.520MHz and beacon some APRS, but I heard nothing. I could also check winlink email through the N3MEL gateway in Downingtown. I had looked it up ahead of time. In the notes in WoAD, I list the frequency where the gateway listens for packets.

I visited during daytime on both days, but did not stay overnight like some did.