23 September 2007

Down Comes the Beam


This morning a few guys helped me take down the A3-S beam for some repairs. We started a little after 6 a.m. and by 8:00 the tower was looking pretty lonely without it. It's been about 13 years now since I put the antenna up, and unfortunately it's been providing rather poor SWR readings for a while now. I was fortunate to have the help of some experienced, safety-conscious hams - Owen AK7AR, Eric KC0AYD, and Larry W7LB. Eric did the tower climbing - in this picture, he's lowering the beam (Owen was holding a rope on the ground, attached by a pulley at the top of the mast), while I'm maneuvering it to the resting spot on the roof.

I was hoping it would be a quick fix, but decided that it needs a little more detailed work, so we didn't put it back up yet. It's sitting on the roof, and hopefully this week I'll spend some time cleaning out traps, etc. I also need to decide whether or not to replace the rotor. The old one, a Yaesu G-450XL, still works very nicely, but it isn't capable of computer control, and given its age I would not be surprised if it didn't last a whole lot longer anyway.

So I'm off the air on HF at the base for a while. I've had some nice success recently, using the tuner; last night I worked some PSK31 including Cuba. But the antenna is arguably the most important component of the station and I'd really like to get it back working the way it used to.

19 September 2007

Some Good DX on 20

This morning I managed to have a little fun on 20 meters before heading off to work. Managed to work Czech Republic, Sweden, Ukraine, and Market Reef. This was a nice surprise since last night 20 meters was as quiet as it could possibly be.
The Market Reef contact was with OJ0B and is a DXpedition planned to be active for only about 9 days. They came back to me immediately so I guess we had a nice pipeline going. I'm amazed at guys who do these DXpeditions. This one required a helicopter fly-in and apparently they have already had to deal with bad wx conditions.
Alas my antenna is not behaving well at all, 20 is fine but the other bands are not. I'm working on a plan to do some antenna work very soon, hopefully before contest season really gets rolling.

17 September 2007

CAT Control with Ham Radio Deluxe


Tonight I managed to get the computer talking to the FT-2000D. I was thinking I'd need to solder up some special DIN connector but it only needed a 9-pin F/F serial cable, which I already had.

I've been using Ham Radio Deluxe lately and now it is able to control the radio. Actually I prefer to operate the rig using the knobs and dials - there is something missing from the overall ham radio experience when you use only the computer for control. However, the synchronization between the rig and the logging program is very valuable, since the software now knows exactly where I'm tuned. This will be especially useful in contest situations.

15 September 2007

The Antenna Farm


Here's a picture of part of the KR7RK antenna farm. At the top is the HF beam, and on the left is a new Comet GP-15 tri-band vertical that I bought at the convention last weekend. It covers 6m, 2m, and 70cm and is connected to a quad-band Yaesu FT-8900R in the shack.

On the right is the APRS wind anemometer, and next to that is a Cushcraft dual-bander AR270B that is used for the APRS weather station.

There is still a ton of antenna work to be done to really get things running smoothly and efficiently.

13 September 2007

HRO Phoenix


Today I had to work at a client's office in Northern Phoenix. It just happened that the Phoenix store for Ham Radio Outlet was nearby, and I finished up early enough to pay them a short visit. I didn't buy anything since I just went to the Convention last weekend, but it was fun to stop in and see the rigs set up all along the wall, and all the goodies for sale. I took this image with my cell phone, so it's not too good, but you can see the beams on top of the store. There was someone inside playing with a little Ten-Tec rig and listening to W1AW on CW.

On the way up this morning, I was surprised to hear my friend Jesus, N7SCE, come on the 448.350 repeater. Turns out he was going the opposite way and we were close enough to switch over to VHF simplex for a nice QSO. But I think the little antenna on my Pontiac needs to be replaced, it's not doing a very good job these days. I'll try to check the SWR this weekend. I also decided not to put on the HF antenna for the drive because the mount is getting quite loose. So in addition to all the antenna work needed on the base, and on the truck, I also need to do some on the car. So much to do, so little time.

11 September 2007

RST Club Meeting Night



Tonight was the monthly meeting of the Radio Society of Tucson (RST). The club is really growing lately and there are some excellent presentations at the meetings. The speaker tonight was Ron Holle, a meteorologist from Vaisala, which is a company that operates the National Lightning Detection Network. These guys have some very advanced lighting detection systems and they publish plenty of data regarding lightning strikes around the world.

Ron's talk was quite interesting and while it was not directly related to amateur radio, it certainly was a relavant topic since we all need to be concerned with our antennas taking a hit. Last year I had a neighbor whose tree was hit, and the lightning jumped across to the house and started a fire. Another friend of mine from the astronomy club had a very damaging strike at his house this summer. Tucson is one of the worst places in the country for lighting strikes during the summer monsoon months. Here's a picture I took last year from my back yard during a severe thunderstorm - I probably was putting my life on the line when I took this!

10 September 2007

An Old Classic


My first dual-band HT was an Alinco DJ-580T, which I bought in 1992. The DJ-580 is a full-duplex, true dual-bander VHF/UHF handheld and I sure had a lot of fun with mine. Today's HT's are a little bit smaller but at the time, the '580 was a heck of a lot of radio for its size.

In a sad moment in radio history, my '580 vanished one day, never to be seen again. I wish I knew where it went - I think it's possible that it got set atop a car and we drove off, but that's just a guess. Anway for years I have sadly wished it was still in my rig collection.

I finally decided to watch ebay for sales and sure enough, there are plenty. After a few weeks I found what appeared to be a good one, and with a little bit of bidding I won it for less than $100. This was a $500+ radio in the heyday, but the newer HT's and lower HT prices in general have made it worth less. Actually, a hundred bucks is a lot for most HT's of that age, but this one is worth it.

Anyway I received it today and it's almost like new. I got the full kit, complete with box, manual, etc.; there were also a bunch of accessories like a drop-in charger, DC cable, case, etc. So I feel like I'm finally catching back up to an old friend. Do I really need this Alinco HT? Well no, I suppose not, since I have a fancy Kenwood TH-F6A with more features; but I definitely can put the full duplex features to use if we work some easy-sats like we did a couple of nights ago. One thing I especially like is the independent VHF and UHF volume and squelch controls.

Alinco has never been the "Big" name in ham radio, but in my mind this one is a classic and I'm sure happy to give it some new life.

08 September 2007

W1AW/6 Being Operated by KR7YAN


Here is Ryan making a 10 meter QSO with a station in Kansas this afternoon from the special event station W1AW/6 at the ARRL Southwest Division Convention. We've had a great day with numerous interesting seminars, some radio ops, cruising the exhibit hall (and buying a couple of new toys!), and going to the banquet. Ryan collected his 10 numbers by making contacts on 10 meters during the daily net, so he will now be able to submit an application for his own 10-10 number.

The day is not quite over as we are awaiting the midnight hour and the Wouff Hong ceremony.

07 September 2007

Satellites from the Parking Garage


Here's me and Ryan trying to work an AO-51 pass tonight from the top floor of the Marriott in Torrance. We attended a seminar by Clint K6LCS on AMSAT and working AO-51 with an HT, and then about 30 people went to the roof to try to work the "bird" during its 14-minute pass.

3 of us had HT's with Arrow Antennas - Clint, Larry, and me and Ryan. Clint managed to break through to 4 different stations, but Ryan wasn't able to get in on the transmit side. We did manage to hear stations throughout the pass, beginning with an XE2 (Mexico) at AOS (Acquisition of Signal) all the way throught to a KL7 (Alaska) at LOS (Loss of Signal). It was a lot of fun and everyone cheered whenever Clint completed a QSO. We even had the famous Gordon West, WB6NOA, as an onlooker. It was a great way to spend the evening.

ARRL Southwest Division Convention 2007


Well I am here in Torrance California after a long day's drive for the 2007 convention. My son KR7YAN and my friend Larry W7LB also drove out with me, so even thought it was a long drive it was an enjoyable one.

We used Larry's Avmap GPS to direct us - high tech! Throughout the day I kept checking various HF bands but no contacts made, the propagation was very poor today.

We missed the first hour of seminars but made it in time to attend a talk on pic programming. After that we cruised the exhibit hall - it was nice to see a lot of vendors here. There are definitely a few toys calling out to me, perhaps tomorrow we'll be making some deals.

04 September 2007

Shack Renovation Nearing Completion


"Completion" is a relative term because one thing I have learned is that the ham shack is never really complete. It's a continual, ongoing process of changing, improving, and shuffling around of stuff. A true ham shack is more like an experimental playroom, with radios moving around and testing different equipment and arrangements.

I was fortunate to build this bench about 15 years ago, out of simple particle board. I used a 4'x8' piece as the main desk, so it really is big. But I've had no problem filling up the space, even before computers took a prominent place. My recent clean-up has included removing a huge mess of gear from the top shelf - I would have been embarrassed to show a pre-cleanup photo!

One of the best things about this workbench is that since it's not some fancy-shmancy piece of furniture, I am completely unafraid to drop solder balls or spill some ink on it.

Many rigs have come and gone from this bench. To name a few of the "bigger" ones, an Icom 735, Yaesu FT-1000MP, Kenwood TS-2000, Icom 706, and the latest one, seen in this photo, is a Yaesu FT-2000D. I like the big rigs, and have learned that there really is a major difference between ham radios. The '2000D has superb audio and I just love the high-tech output to the LCD monitor on the left.

02 September 2007

Conventions and Hamfests


Ham Radio provides some great opportunities for social interaction, technical advancement, and personal growth. All of these can occur over the airwaves but it's always great fun to attend a convention, hamfest, or local club meeting.

I've been fortunate to attend many of these, sometimes as a general attendee and others as an exhibitor or even a speaker. I can't think of a single time that I have gone to a ham radio event and not had a good time.

I'm in the process of a major shack overhaul and while I was cleaning up the top shelf of my workbench, I came across a number of name badges from various events. Usually I save them as a souvenir, and I have quite a pile now. Here is a picture of a few of them.

Conventions are on my mind since I just attended the 10-10 International Net Convention a few weeks ago, and next week I'll be at the ARRL Southwest Division Convention.