Ham radio – Page 7 – AB4UG Radioblog

A 2023 ARRL Handbook

With the 1926 1st edition ARRL Handbook bookending my collection at one end, I now have the 2023 100th edition ARRL Handbook to be a bookend at the other end of the collection.

Cover of the 2023 100th edition of the ARRL Handbook

It’s a pretty hefty tome, and like previous handbooks, stuffed full of pretty much everything a person needs to know about amateur radio.

The hardcover Handbook also gets you the electronic version of the Handbook as well (I was sent a link to download both the Mac/Linux and Windows versions), which includes a ton of supplemental content for each chapter, project PDFs, and some software as well. What I haven’t seen in the electronic version (yet) is the insert between pages 15.18 and 15.19 giving a look at the evolution of the Handbook over the decades.

Insert in the 2023 ARRL Handbook providing a look at the ARRL Handbook over the decades.

It’s a nice little review, starting with an interview with K1NKR and his collection of QSTs and Handbooks (sounds like he’s got all but two of the Handbooks…quite the impressive collection) and then highlighting changes in the Handbook by decade.

Looks pretty good on the shelf with the other Handbooks.

2023 100th edition handbook added to the ARRL Handbook collection

Hammarlund HQ-100 tubes aglow

The HQ-100 has some new Class X2/Y1 capacitors across the AC input, a polarized two-prong power cord, a new multi-section can capacitor from Hayseed Hamfest, and now three “new” tubes.

New capacitors installed in the Hammarlund HQ-100

After spending a few days checking over things, I put the front panel and knobs back on, plugged the radio in and was greeted with some warm glowing lights.

Hammarlund HQ-100 plugged in and showing some nice glowing lights.

The two lamps behind the frequency dial indicator both came on, and a nice warm red glow was coming from most of the tubes. Three of them (a 12AX7 and two 6BA6s) were dark though. Fortunately I had acquired all the tubes I needed for the HQ-100 at past hamfests. After replacing the three tube and applying power again, all the tubes were lighting up!

Next step will be to attach a speaker and antenna and see how well, if at all, the radio receives.

Hammarlund HQ-100

At long last, the Hammarlund HQ-100 I picked up a few years ago is finally getting some time and attention on the workbench.

After a bit of cleaning outside, it was time to dig in and see what was going on. Removing the knobs and four slightly rusty screws let me remove the front panel to see if the band spread tuning dial could be fixed.

Exposed tuning frequency indicator dials after removing the Hammarlund HQ-100 face plate

Turns out the frequency indicator dials (the large white disks) are connected to the tuning dial knob by friction fit. Turning the knob makes the indicator dials turn, and the shaft those dials are attached to are connected to the variable capacitors that do the tuning. The band spread dial was free-spinning because there wasn’t enough friction between the indicator dial and the tuning knob. While I was trying to figure out how to fix it, I discovered the nut at the back end of the tuning shaft was loose, and tightening that up made the tuning knob work again.

The other big issue I came across while looking around was a burnt capacitor across the AC input.

Burnt 0.01 uF capacitor — Burnt capacitor on the AC input

Not a good thing to see. I clipped the toasted capacitor out as well as the old two-prong non-polarized plug. I’ll see about wiring in a new three-prong plug and maybe a fuse as well.

Haven’t seen any other obvious component issues yet. There’s a multi-section electrolytic can capacitor that probably should be replaced, but there aren’t any signs of leakage.

Field Day 2022

The Half-Wave Society, W4BXC, was on the air once again from our back yard for Field Day this year. We were joined this year by newly inducted members Mark W8ZRB and Scarlett KO4ELA and their respective families.

Three deep-cycle AGM batteries provided an ample amount of power for the HF and 2m radios this year and had no problems keeping the HF radio going at 100 W. I’ve run the HF radio on one of these batteries before, but this is the first time I’ve had all three connected together to provide power.

Three deep cycle AGM batteries connected together in parallel — Battery power for Field Day 2022

2m/70cm J-pole antenna attached to a 2x4 propped up with a ladder — Antenna deployed for Field Day 2022

An Arrow 2m/70cm J-pole was set up for the 2m radio. Wasn’t hearing much on the repeaters, but we did use the 2m radio to put some of the kids on the air over simplex with a handheld.

Radios and laptop on a table with three batteries supplying power

The CW key collection and Heathkit code practice oscillator I set out on the dining room table proved to be popular items with the crowd that wasn’t outside with me playing radio.

Amateur radio items on display for Field Day 2022

We managed a total of 67 QSOs this year on the 10m, 20m, and 40m bands. Propagation on 10m was pretty much non-existent. I wasn’t hearing any stations at all on Saturday, and just a lone station out of Missouri Sunday morning.

This year we’ve decided to make Ham the Terracotta Pig the official mascot for the W4BXC Half Wave Society. I think he makes for a very majestic looking mascot.

70cm radio in the shack

Got a 70 cm mobile radio set up in the shack yesterday. It was a radio I picked up at the Charleston Hamfest a few years ago but had been sitting in the closet waiting for me to get to. After getting the 2m radios set up in the car and the shack, I decided it was time to turn my attention to the 70 cm radio.

The radio is a Yaesu FTM-3207D. It’s a nice, compact little radio, in pretty good shape, and works great. Programming the memory slots is pretty simple and pretty much the same procedure across the other Yaesu radios that I have, so getting the local 70 cm repeaters stored went pretty quickly (there aren’t a whole lot of them in the area).

Yaesu FTM-3207D 70cm mobile radio tuned to a repeater at 441.450 MHz

The radio is currently connected to a 2m/70cm dual band mag mount that I used to have on the car. Got the mag mount set up on a shelf sitting on a side panel from an old computer case as a ground plane.

Dual band mag mount antenna perched on a shelf connected to a 70 cm mobile radio

The microphone is still functional, but looks like it’s seen better days. The cable covering has become brittle and broken away. Fortunately, replacement cables are available and it’s easy enough to replace.

Yaesu MH-48 hand microphone for the FTM-3207D

I managed to check into the local ARES net last night using a repeater about 30 miles away with the radio set to high power (55W). Don’t know how I sounded, but it must have been good enough for the net controller to pick me up.

I’ve got a little handheld Arrow 70 cm Yagi antenna, so maybe I’ll work on getting this radio outside to see if I can eavesdrop on some FM satellites, or see what kind of UHF FM simplex I can do.