Ham radio – Page 6 – AB4UG Radioblog

Special Event: USS Yorktown (CV10) Commissioning 80th Anniversary

This year marks the 80th anniversary of the commissioning of the USS Yorktown (CV10). Like I did 5 years ago for the 75th anniversary, I’m planning to run a special event station from the club room (WA4USN) on the ship.

My current plan is to get started around 10AM or so, and operate probably until about 4 or 5PM. Activity will be on 10m, 20m, and 40m, depending on how the bands are behaving that day. We’ll also be listening on the 2m repeater.

Patriot’s Point will also be commemorating the occasion with reduced admission and events on the Yorktown throughout the day.

WA4USN QSL Card (Back) — WA4USN QSL Card (Front)

NC QSO Party 2023

Spent a few hours playing in the North Carolina QSO party, returning the favour for the NC stations that I got the previous day.

As usual with the nearby states, all the NCQP action I heard was on 40m, and all of them were coming in pretty loud.

Ended up the day with 47 contacts, 31 counties, and all but two of the bonus stations (N4[WRIGHT]) set up to commemorate the 120th anniversary of the Wright Brother’s first flight. I was just missing N4W and N4R. I did manage to work a W4W station though, but that was a different special event station.

Contest: NC QSOPARTY
 Band     QSOs     Pts  Mul  Pt/Q
     7      47      94   31   2.0
 Total      47      94   31   2.0
Score: 2,914
1 Mult = 1.5 Q's

Update 2023-05-30: The results for the 2023 NC QSO party were posted a few days ago and my 47 contacts got me 3114 points, including 200 bonus points. If I counted right, that put me at 31 out of 102 submitted logs in the out of state, phone, low power category.

SC QSO Party 2023

Made it back to participating in the SC QSO party this year after missing it last year. Apparently, the county we’re in wasn’t activated at all last year, so several of the SC contacts I made were a bit surprised they were able to add the county to their list. Surprised me too considering how many hams there are in my neck of the woods.

We put the Half Wave Society club call, W4BXC, on the air for the QSO party this time and had some friends over to participate. Had a lot of fun and made a bunch of contacts in both run and search/pounce modes.

Most of the SCQP activity ended up on 40m with a smattering on 20m. 20m was pretty crowded with a lot of POTA activations, and I didn’t hear a lot of stations calling for SCQP. I was even able to make a contact down on the upper portion of 75m although the radio wasn’t very happy with the antenna there, judging by the SWR meter.

Ended up getting the two bonus stations as well (W4CAE and WW4SF), but the highlight stations were OM2VL (Slovakia), Connie’s dad WA4BXC, and NT7S and his boys in Oregon.

Had a good time getting back on the radio for the QSO party. Looking forward to doing again next year.

Contest: SC QSOPARTY
 Band     QSOs     Pts  Mul  Mt2  Pt/Q
   3.5       1       2    0    0   2.0
     7      63     184   29    1   2.9
    14      11      44    5    0   4.0
    28       3      12    3    0   4.0
 Total      78     242   37    1   3.1
Score: 9,946
1 Mult = 2.1 Q's

The Radio Handbook

Another radio handbook has joined the collection, but not an ARRL handbook this time.

This one comes to me courtesy of a local ham friend who’s been downsizing a bit. A very nice gesture for which I’m very grateful.

The Radio Handbook (14th ed), edited by William Orr/W6SAI and published in 1956 by Editors and Engineers Ltd. It’s a well used copy and the spine is not in the greatest shape. It’s come unglued from the book and is quite literally hanging on by the threads of the cloth covering. I’ll have to see if I can do something about that. The rest of the book seems in reasonable shape for a 66 year old book.

Front cover of the 14th edition Radio Handbook edited by William Orr, W6SAI

Title page of the W6SAI Radio Handbook — Front cover of the 14th edition Radio Handbook edited by William Orr, W6SAI

I haven’t gone through a lot of the book yet but based on the table of contents, it seems to cover many of the same topics the ARRL handbooks cover.

First page of the table of contents for the W6SAI Radio Handbook.

Figure of common crystal cuts from the W6SAI Radio Handbook — First page of the table of contents for the W6SAI Radio Handbook.

It might be an interesting and fun exercise to compare this edition of the Radio Handbook with the 1956 ARRL Handbook.

Hammarlund HQ-100: Replacing more tubes

The HQ-100 manual conveniently provides a table of the voltages you should be seeing at the tube pins. After replacing three of the tubes in the HQ-100, I went through and checked all the tube pin voltages and ended up replacing two more tubes (the 6BE6 and 6AL5 tubes). I didn’t have a spare 6AL5 tube on hand, but I discovered the VoltOhmyst VOM I acquired a while back also happened to use a 6AL5 tube. After pulling it out of the VoltOhmyst and putting it into the HQ-100, all the voltages at the tube pins matched the voltages in the table.

Unfortunately, I’m still not hearing any static or audio from the radio, so there’s more work to be done. The realignment procedure described in the manual calls for a 455 kHz signal source, so the next task will be to get one set up.

Update 02-Apr-2023: Since I had them on hand, I replaced the 6C4, 6BZ6, OB2, and 5Y3GT tubes. Now the only tube that hasn’t been replaced is the 6AQ5.