Posts Tagged ‘Portable’

Saved by something or other

Today I almost bought a new rig. I say almost because it has been the closest time I have ever got to buying a new rig. I had a week with a KX3 and found it wasn’t to my taste, not because it didn’t perform well but for some reason or another it just didn’t do it for me. So I looked at the new Icom IC7300 and was really taken aback by it. It looks like a great rig and I’m sure it’ll do a lot for those that buy it, one day I might get one. Today I almost did. My finger was hovering over the buy now….I put one in the basket and got the credit card out. My XYL pointed out I could afford it (This made me very suspicious). Then I realised I was sure I didn’t actually want it. Am I losing the fun of radio?

I don’t think so.

I bought a LNR Precision Mountain Topper last April and have used it a handful of times and enjoyed the portability of it all. The simplicity and the lack of domestic real estate needed to make it work for me. I put together a neat little pack for taking away with me and I think I’ll refine that a little. Some things might look familiar, others look like they’re missing, notably a ‘flight deck’ or ‘thing to put your radio on whilst you’re operating out and about’. I’m going to laser cut a bespoke one that will fit into the case (which by the way is an old Dremel carry case). More on that later

Portable pack

 

So I decided to save my money and think about a shack in the box that I really miss, a Yaesu FT817ND. I sold my 817 a couple of years ago and regretted it from the minute I sold it. I think I will get myself a decent second hand one of those with a few of the bells and whistles I didn’t have the first time around. At least that’s what I think I’ll do today.

Tomorrow I’m sure I’ll change my mind again.

April 2016 trip to American Sa’moa

I had originally planned to make a maintenance and upgrade visit to my instrumentation in American Samoa in February 2016.  There are lots of advantages to February:  It’s cold here in W3, the ARRL DX CW contest is in February, and the phenomenon I’m studying is most active during the equinoxes.  I scheduled a 7-day trip that ended with the weekend of ARRL DX so I had the opportunity work through the weekend or play some radio if work went better than expected.

My flight had been booked out of Washington National (DCA) airport at 5:15 am Monday morning, which is the best possible time of day at the worst possible airport.  A snowstorm of unknown magnitude was bearing down on the mid-Atlantic.  And, around 4:00 pm on Sunday afternoon, I fell asleep on the couch.  When I awoke 90 minutes later, it rapidly became clear that I had a nasty stomach flu.  As my condition deteriorated further, I finally decided I didn’t want to be fighting that for the next 24 hours on 767s on my way to a foreign place where I wasn’t sure what kind of medical facilities I could access.  I cancelled the trip and spent the next 24 hours in bed instead.

The trip was rescheduled for three weeks later in March and I managed to get this itinerary out of BWI, which is much more convenient.  I loaded up my gear and went to the airport at 4:00 am.  My upgrade had cleared so I didn’t pay excess on my overweight and extra Pelican cases.  We sat at the end of the runway on the tarmac doing the preflight checks and the cabin lights started flickering intermittently.  And we sat, and we sat. And, we returned to the gate and sat some more.  I nervously refreshed the ETA on my phone finally watching the arrival in PHX slip past the departure to HNL.  I deplaned.

The agents tried to convince me that I could “just take the flight to Honolulu tomorrow.”  With some effort, I communicated to them that the HNL-PPG (Sa’moa) leg my journey only goes on Mondays and Fridays and that I would rather be stuck at home for a week rather than a week in Honolulu.  So, I cancelled the trip for a second time.  My bags went to PHX and were delivered to my house the next day.  I rescheduled the trip for late April with a night in Honolulu on the outbound leg to avoid this bit of bad luck happening twice.

Two days before I left, my local contact called me on the phone to tell me that Tropical Cyclone Amos was bearing down on the island.  Fortunately, the hurricane dumped some rain and brought some winds but passed to the north of island.  The April trip went off without a hitch, although it was scheduled for four days (Monday night – Friday night) instead of the original seven.  So, I was hustling to get my work done and find time for radio.

I was vaguely aware that KC0W is also in KH8, but given my historical bad luck with this particular visit, I didn’t reach out to him.  In fact, he’s the one that contacted me once I arrived.  We met for breakfast at the McDonald’s in Tafuna one morning and had a nice long ragchew about radio and travel.  Typical hams.  I decided to focus on bands (especially 160) that Tom wasn’t on given my limited time on the island.

Fortunately, I had access to this mobile phone tower, which I use for my wireless networking for instruments as well.  So, I climbed up to check on the network equipment and put a pulley on the tower so I could raise and lower ham antennas safely after-hours when no one was around.

tower

The tower is on the top of Cape Matatula, which sticks out of the northeast corner of Tutuila island.  It’s the bit of land jutting out in the middle of the photo below.  If you open the full-size photo, you can see the tower just at the edge of a rather precipitous drop-off toward the rocky shore about 1/3 of the way from the right-hand side of the frame.  Needless to say, it’s a great QTH with 270 degrees of saltwater view as I’ve mentioned before.  At sunrise and sunset, the middle and higher bands are open to EU, JA, and NA/SA all at once.  The pileups are thrilling but very challenging.

matatula

Here’s the radio setup from this trip:  K2/100, KPA500, WKUSB, and TRLinux running under VirtualBox on my Mac.  This worked OK, but the WKUSB would drop out every few QSOs and needed to be completely rebooted which meant that I had to unplug the USB cable and restart TRLinux.  Obviously, this worked when I tested it at home but I was not stressing it like I was in the field.  I’m not sure whether it was an RF issue or software/hardware.  In any case, I will probably be installing another Windows VM like I’ve used previously.

shack

I only ended up making about 400 QSOs on this trip, which is way down from the approximately 3000 QSOs I made over the past two trips.  The combination of aggressive work schedule, glitchy keying, and poor 160-meter conditions (too late in the season, but I made a few guys happy), made it hard to get excited about operating a lot.  Furthermore, my operating position was located in a room with an air compressor nearby that would kick on every few minutes.  Even with the excellent Etymotic MC5 earbuds, it was still loud.  Enough complaining!  There will be at least one more trip out there under my present project and if KC0W hasn’t worked everybody, I’ll be there to give you all new counters again.  I just uploaded the log to LoTW before I posted this blog entry.  I have not responded to any direct QSL cards yet.

Making the Palm Mini Paddle Stay Put

palm_mini_mount

In my on-going quest to produce a lightweight yet good-performing kit of portable equipment to carry along on my exotic work travels, I set my sights once again upon the Morse keying paddles.  When I was a student, I carried what I had: a black-base Bencher BY-1.  This caught the attention of nearly every airport security screener and was obviously quite heavy, but it stayed put on the table (for the most part) when I aggressively worked a pileup.  A few years back, my wonderful, loving, and patient wife, solicited suggestions for Christmas gifts and I suggested a Palm Radio Mini Paddle.  (She’s grateful when I provide a link to a web site with a shopping cart in these situations.)

The Palm is really a joy to use and is extraordinarily lightweight, which is perfect for travel.  However, I’ve always struggled with how to keep it steady on a table.  I have the magnetic base, but that presupposes a ferromagnetic surface to which it will mount.  Since both the Elecraft K3 and K2 have aluminum panels, I can’t count on the radio.  I tried a variety of additional things, up to and including, trying to design a 3D-printed carrier that is akin to the Begali Traveler.  So, I shelved the project, only using the Palm key for casual portable operating when mass trumped long-term operating comfort and efficiency.  Good fortune happened upon me and I built this.

When I decided to add an amplifier (more on this in the future) to my portable setup, again pressure set in on the mass of everything.  So, I revisited the Palm Mini project.  I had purchased a number of mounting clips for the key (hedging my bets against the ephemeral nature of ham radio businesses); so, I set out to attach one to the K2.  I’d seen the photo of the base attached to the right-hand side panel of the K2 by the power switch.  But, I really didn’t want to drill holes in the panel, plus that puts the paddles too high when the tilt bail is raised (which is necessary to see the display).

So, I fabricated two strips of 3/16-inch aluminum plate (leftover from the hexagonal beam I built a few years ago) with a hole bored down between them to clamp on the tilt bail of the K2 or the K3.  There’s nothing particularly critical about the construction of it, although I used a Bridgeport mill to do all the cutting; you might be able to do it in a drill press.  I think I ended up with a #14 drill for the clamp hole.  I used 6-32 hardware because I had it on-hand and I like the bigger stuff.  I had to enlarge the adjustment slot in the Palm base to handle the bigger diameter.

Contact with Tim Peake on a handheld.

And a happy new year to you too.

Today was a great day. I wanted to listen in on the ISS as it flew past and especially the contact that Tim Peake was going to have with Sandringham School in St. Albans.

The pass was scheduled for 8:47am and I decided that I would share my experiences of listening in and also show you all how easy it is to accomplish with nothing more than just a handheld radio.

Today I used my Yaesu VX8. only because it was the only radio charged up. The fact is that any 2m FM radio will be able to listen in on the ISS and other amateur satellites that fly overhead.

Anyway here is the video, I hope you enjoy it. And yes. It really was very very cold.


Contact with Tim Peake on a handheld.

And a happy new year to you too.

Today was a great day. I wanted to listen in on the ISS as it flew past and especially the contact that Tim Peake was going to have with Sandringham School in St. Albans.

The pass was scheduled for 8:47am and I decided that I would share my experiences of listening in and also show you all how easy it is to accomplish with nothing more than just a handheld radio.

Today I used my Yaesu VX8. only because it was the only radio charged up. The fact is that any 2m FM radio will be able to listen in on the ISS and other amateur satellites that fly overhead.

Anyway here is the video, I hope you enjoy it. And yes. It really was very very cold.


KX3 Shield installation

Amongst many deliveries this week, one very welcome package was side plate covers for the KX3. Ive noticed on recent trips that the soft pouch that I use to hold the KX3 is offering very little protection to the knobs.

The side plates allow the installation of a clear cover that is intended to give protection to the delicate front panel.

Installation is easy. It takes less than 10mins and also comes with a Heat sink to help the PA transistors stay cooler for longer. I didn’t want to fit the heat sink at first – I thought it wouldn’t allow the radio to fit in the carry pouch. But as you will see the case I use was able to take both the radio and heat sink. To complete the installation you will need 10minutes of spare time, a screwdriver and a 10mm spanner.

If you own a KX3, use it out and about - this is a quick and simple upgrade you should seriously consider.


KX3 Shield installation

Amongst many deliveries this week, one very welcome package was side plate covers for the KX3. Ive noticed on recent trips that the soft pouch that I use to hold the KX3 is offering very little protection to the knobs.

The side plates allow the installation of a clear cover that is intended to give protection to the delicate front panel.

Installation is easy. It takes less than 10mins and also comes with a Heat sink to help the PA transistors stay cooler for longer. I didn’t want to fit the heat sink at first – I thought it wouldn’t allow the radio to fit in the carry pouch. But as you will see the case I use was able to take both the radio and heat sink. To complete the installation you will need 10minutes of spare time, a screwdriver and a 10mm spanner.

If you own a KX3, use it out and about - this is a quick and simple upgrade you should seriously consider.



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