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 

21 Tech Net: 2025-01-05

My Week in Radio

  • My favorite way to learn things: experiments
    • diagnose and repair a bad coax cable
      • no continuity on center conductor
      • plugged it into the nano vna, switched to smith chart
        • saw a big spiral around the outside
        • no change in the graph on the other side
        • compared to a working cable
        • it should have spiraled
        • maybe alonger spiral for a longer cable
    • 71 foot random wire with 5W is not needing the tuner
      • disconnected lots of different places and checked lots of SWR without those connections
  • Tossed a wire into a tree at Swatara State Park today for some POTA contacts
  • Operated the last 2 hours of the RTTY contest on 10m, 15m, and 20m.
ka3tkw  net  tech  21 

21 Tech Net: 2024-12-29

My Week in Radio

  • ISS on scan, so caught part of an image
    • passes are a bit early right now, and low
  • POTA yesterday:
    • 2 CW + 28 FT4 contacts on 20m
    • pretty rusty on throwing the line into the trees
    • bad section of coax
  • some antenna maintenance on a nice day

Others

  • K3EA, Greg:
    • Special event station with local station:
      • W2T, Battle of Trenton
      • W2P, Battle of Princeton
    • Contests
    • Propagation report and DX
      • Dominica
      • Fiji: 3D2GE, CW only
      • watch the DX clusters
    • after DXCC award, go for every country on every band.
  • WB3LNY, George
    • built a new pc with chirp, and synced up all his HTs
  • VE3HOH, Pete
    • cleanup, indoors.
  • KA3TKW, Tom:
    • ISS on night shift: good passes aren’t during the day.
      • there’s a packet digipeater
      • SSTV is active
      • it was only doing telemetry over the weekend
    • good passes for SO-50
    • https://n2yo.com/
    • ham lunch had about 32 people
    • thanks Glen for talking about DXCC
    • zbitx
      • 5 watt QRP SDR TRX
      • will be buying one
      • shipping in February
      • 44 bit ADC
  • K3DMM, Denny
    • caught SO-51 with a Baofeng 701
  • KC3VZU, Bob:
    • setup a new TYT 9000D with a slim jim outside
  • KK4KKW, Steve:
    • new end fed antenna strung into the trees, inverted L, trying it on 10M
  • KC3ZBI, Ron:
    • new antenna that’s not on the car now,

Swap and Shop

  • WB3LNY, George
    • dummy loads
  • VE3HOH, Pete
    • paddles, bugs
      • vibroplex
      • brown brothers
    • oscilliscopes
    • a couple Drake TR7s
    • tower sections
    • a couple Kenwood 130s
    • email is good on http://qrz.com/
  • KA3TKW, Tom:
    • 2 shortwave receivers: RadioShack DX440
      • 0-30MHz all mode
    • UHF motorola repeaters, 25W
    • Yaesu FT1XD, dual band, APRS
  • K3MIJ, Troy
    • looking for a commercial propane generator
21  ka3tkw  net 

21 Tech Net: 2024-12-22

My Week in Radio

  • ARRL 10m contest:
    • 13 CW contacts logged on paper
    • Iambic keyer set to 20 WPM somewhat confidently
    • Still relying on radio to decode for me
  • Hunting some CW POTA activators through the week
  • Practicing copying CW
  • Latest beta of Meshtastic app on Android is reconnecting automatically
  • ISS SSTV 25 Dec - 4 Jan

Others

  • K3EA, Greg:
    • FT8 whack-a-mole
    • Saw some RTTY contests
    • Canadian contest next weekend
    • https://contestcalendar.com/
    • Jan 4-5 is RTTY Roundup
    • Kids day
    • Good space weather, peak of solar cycle
    • DX
      • Phillipines
      • French Guyana
  • WB3LNY, George:
    • Diagnosing heating connections on large electrical panel
  • NE3H, Joe:
    • Spoke at length with a bunch of old acquaintances from Taiwan
  • KC3VZU, Bob:
    • Installing some coax and a 220MHz rig
  • KD3AGU, Richard:
    • Licensed 3 weeks ago
    • Setting up DMR
    • Listening to a net in Ephrata
  • K3DMM, Denny:
    • 16F outside, so no fun standing outside for satellite work
    • Tuned some mobile antennas
    • Worked a couple ISS passes
    • Good SO-50 pass
    • Looking forward to lunch on Thursday
  • WA3WIJ, Ron:
    • Rebuilding Halicrafters radio with caps and tubes
    • Preparing for straight key night
  • KC3ZBI, Ron:
  • N7JMS, Jon:
    • Got some new countries on FT8/FT4
    • Building a 10M loop antenna
    • Is there any C4FM or Fusion available in the Harrisburg area?
      • K3DMM, Denny: 447.925
21  technet  net  ka3tkw 

ISS Repeater

I overheard some tips from Tom, KA3TKW, on the 21 repeater: Check out the AMSAT manuals for contacting satellite repeaters, and operate full duplex, so you can hear while transmitting.

iss  repeater  ka3tkw  21 

21 Tech Net: 2024-12-01

My Week in Radio

  • I used N3KZ 440 repeater in York from Lancaster
    • always surprised on their range.
    • thought UHF didn’t go far.
  • I built an Allstar node from a PI 4 and a USB-C radio dongle to reach a fringe repeater.
  • I’m looking forward to FT challenge
  • I stumbled into and recognized some Olivia-8/250 on 20M, and some SSTV
  • I’ve been hearing lots of ISS repeater traffic at convenient times on my good ol’ 1/4 wave antenna in the tree.
  • I got the radio blog up-to-date with all my adventures.

Others

  • 145.010 packet repeater
  • K3EA, Greg:
    • No contests this past weekend
    • Next weekend:
      • ARRL 160m CW at night
      • FT challenge - normal exchanges
    • December 14-15
      • 10m contest, phone/CW, 48 hrs, should be great.
    • https://contestcalendar.com
    • Propagation should be normal and above normal
  • WB3LNY, George:
    • Working on ISS access.
  • KA3TKW, Tom:
    • ARISS mission 1622UTC, 145.800
    • New satellite on Nov 4, AO-123, ASRTU, FM, 4-day pass
    • Easy satellites
      • ISS: 145.800FM, 145.825 packet, 437.800FM downlink
      • AO-123, 435.400FM down
      • SO-50, 437.795FM down
  • K3DMM, Denny:
    • Travel and simplex contacts
  • K3AQ, Kenny:
    • New laptop from Best Buy to run fldigi, etc.
  • KB3MIJ:
    • Some fldigi on HF
    • Some repeater work at reesers.
  • W3MW, Don:
    • Most bands on a vertical antenna.
    • Mounting some antennas on the roof with a contractor.
    • Built some more receive pre-amps.

Swap and Shop

  • VE3HOH, Pete
    • Rohn 25 sections + brackets
    • 8 yagis for 432.
    • Kushcraft yagi for 2 meters
  • KA3TKW, Tom:
    • Cheap UHF radios
    • CMD-1550
    • Shortwave receivers
21  net  technet  ka3tkw 

21 Tech Net: 2024-11-24

My Weeks in Radio

  • QRP on a couple hawaiian islands
  • not much 2m activity
    • added some repeaters and scanned
  • POTA
    • Xiegu x6100 mostly turned up to 8W
    • mostly 10m-30m and everything in between
    • challenging to be on an island where you have to go thousands of miles or you reach no one.
    • antennas:
      • 40M EFHW where I had room,
      • 41ft long EFRW with less room
      • vertical whip and coil attached to a fishing pole for a less conspicuous setup on some beaches
    • 6 parks and 2 trails on 2 islands:
      • sandy beaches
      • rocky lava fields
      • inside diamondhead caldera
      • atop steaming kilauea
    • reached:
      • west: Australia, New zealand, Fiji, Japan, Russia, China, South Cook Islands, Samoa
      • east: North Carolina, Kentucky, Ohio, Dominican Republic, Argentina
    • practiced some CW on the beach when I didn’t get out the computer
  • back to a home park yesterday, but the weather was not as nice.
  • took down my home-made 2m antennas and straightened them up.
  • trying F4HWN 3.7 firmware for Quansheng radios
    • from a scanner-centered AUBSUK firmware that was skipping some channels
  • looking forward to that FT Challenge contest

Other News

  • contests
    • CQ WW CW this weekend
    • no contests for the Thanksgiving weekend
    • following weekend
      • 160m CW arrl contest
      • FT challenge contest
  • KA3TKW: R&L electronics: TYT MD-9600, GD-77 open firmware
  • digipeat through the ISS
  • high pass of ISS tonight at 9:10pm.
  • 224.220 repeater is up and running, but not linked yet.
  • KC3NNO: mini dxpedition to canada
21  ka3tkw  net  tech 

21 Tech Net: 2024-10-20

My Week in Radio

  • I received a couple images from ISS, but it ended quicker than I realized.
  • JARTS RTTY contest coming this weekend
  • I did a little CW for POTA.
  • Trying to reach a little further over a hill and to the East
    • building a yagi on a flag pole from a calculator using ARRL spacing
    • 50W TYT radio
  • This Week in Ham Radio Podcast Ham Radio History:
    • 1916, amateurs exploring propagation
    • 1917 first, faster trans-continental relays with ARRL

Others

  • K3EA
  • KA3TKW
    • W3UU Harrisburg Ham Fest this Saturday
    • ARRIS mission on 24 Oct, 11:15AM, 145.800MHz
    • Tri-repeater is up: 224.210 PL 123.0, 449.925, 53.21
  • KK4KKW
    • Sudden SWR reading on 40M antenna
21  ka3tkw  tech  net 

21 Technet: 2024-09-22

Week in Radio

  • Last weekend was POTA weekend: 4 setups and 5 activations in 2 days around Michaux State Forest area
  • Morsle to practice copying CW
  • My first 2 CW contacts hunting POTA
    • 40m
    • X6100
    • 71-foot EFRW
    • 3D-printed Iambic paddles
    • Fell apart pretty quickly, but got into their logs.
  • Testing the footprint of the KA3TKW VHF/UHF repeaters to high on a hill. near Wrightsville with my trusty Quansheng at the SPARC picnic
  • New house
    • Extending my meshtastic network with a minimal external antenna
    • Strong enough into 21 at 5 watts
    • Flagpole mast with a tape measure yagi to try to get back east to Parkesburg.
  • I was up way too late redesigning an antenna winder for the smaller balun I like.
    • I need to get the 3d printer and software going again since the move
  • Xiegu x6100 has another dangerous firmware update that I’ll try in the near future.
    • The last firmware stopped all TX, so we’ll see what happens this time.

Other News

  • A RTTY contest coming up this weekend
  • AO-91: Monday, 10:15pm EDT
  • SO-50: 437.795FM
  • The 6m 53.21 repeater is up.
21  technet  net  ka3tkw 

21 Tech Net: 2024-08-25

My Week in Radio

  • I Wish I had paid attention to the contest calendar for WW digital contest.
  • I’m awaiting a confirmation on QRZ for my last of 50 states: Hawaii.
  • Lots of new open updates for the Xiegu X6100.
  • Started compiling firmware for Quansheng.
  • Playing with a couple heltec v3 meshtastic nodes
    • marveling at the range, better than APRS?
  • I did my first POTA activation by only voice, no digital.
    • lots of qso parties
    • heard Hawaii really easily
    • Wasted someone’s time trying CW
21  tech  net  ka3tkw