First FT8 QSOs with QRPLabs QMX Transceiver

Posted on August 11, 2024 by robert

One of my goals for 2024 was an electronics “Wildcard” where I would finish my QDX transceiver kit or some other ham related project.  Today I will mark this one complete, as I finally got my QRPLabs QMX Multimode Transceiver on the air and completed a couple of FT8 contacts.

I did have a few glitches trying to get the rig on the air using WSJT-X (version 2.70 rc6).  The first had to do with the short USB-C cable that came with the kit.  When I tried using that, I received a pop-up message saying the USB device was unrecognized and had failed.  Several folks said they had issues until they changed the USB cable, which I did, and that appeared to work just fine – COM 6 came alive.

The next issue had to do with setting the rig in WSJT-X.  The manual suggested “TS-440”, which was a choice that appeared as “TS-440S”.  However that did not work, and returned a pretty long failure message when I tried to the Test CAT function.  The manual also suggested “TS-480”, which did appear as exactly that (no “S” at the end).  That fixed the issues and WSJT-X was now in control of the QMX.

A few minutes later at 1842 UTC I responded to CQ POTA N0WHA EM91 who was -04, and received a -15 in return.  At 18:48 UTC I responded to CQ POTA N4NR EM64, who was +04.  I did receive a -14 report and a 73 in return.  Both stations confirmed the contacts in their POTA Activator logs.  So the QMX is working.

In the photo below, you can see the QMX attached to an Elecraft T1 QRP Antenna Tuner, and if you look closely you can see a 3dB attenuator installed in line with the QMX.  The QMX lacks a tuner, and if it detects a high SWR, will immediately shut down the transmitter.  This quick response prevents the T1 from being able to do its job.  By inserting a 3dB attenuator, that guarantees no matter what the antenna load, the worst case SWR seen by the QMX is less than 3:1 – a value that no longer cuts out the transmitter.  When the T1 is tuned correctly, the 3dB attenuator can be removed.  If you leave it in, the 5 watt output of the QMX is reduced to 2.5 watts.  3dB of RX attenuation really doesn’t matter on the receive side.

In the photo below, you will see the exchanges with N4NR as well as the waterfall.

 

Posted in FT8, QMX, QRP, QRP Labs | Leave a comment

Late Shift Hunter Award

Posted on August 5, 2024 by robert

There is always some new award to chase in the Parks on the Air program.  This morning, I finally received the Late Shift Hunter award.  This took years for me as I am rarely at the radio in the evenings.  But with the solar conditions causing so much difficulty during the afternoon, I have spent some time hunting after sunset.  As it turns out, that often yields excellent results on 40 and 20 meters.

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1500 Unique Parks for POTA

Posted on August 5, 2024 by robert

On Sunday, I finally achieved the 1,500 unique park mark for Parks on the Air.  It took me 349 days to go from 1,000 to 1,500 parks. Perhaps getting to 2,000 parks might be a good goal for 2025.

This was also one of my goals for 2024.  My remaining goal for 2024 is the Gold Medal for CWops CWT contests.  I am currently at 95 contests, and need 120 for the gold, so 25 more to go.  I usually do 3 of the 4 contest a week, so I might check that goal off by the end of September.

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POTA Worked All Provinces

Posted on July 24, 2024 by robert

A nice surprise showed up yesterday when I worked Ricardo VY2AN who was at a park on Prince Edward Island (stunningly beautiful island).  PEI completed my Worked All Provinces award for POTA.  My thanks to him and all the other Canadian activators!

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Visually Impaired HT Use

Posted on July 22, 2024 by robert

A good friend of mine is visually impaired.  We have worked together and he has been successful using a Kenwood TS-590 on HF (it has a strange mix of voice, Morse code, and tone beeps, but you can deal with it), and a desktop VHF rig with channels programmed (he detects channel  1 by a different beep tone, then counts clicks).

I wanted him to have a HT to use.  Sadly there are only a few with voice prompts.  The ubiquitous BaoFeng UV-5R, is one, but it is VERY easy to accidentally stumble into a mode you can’t  recover from if you can’t see.  I had heard that the Wouxun KG-UV9D(Plus) was another capable HT, a bit better designed than the UV-5R, and boasting voice prompts.

Since this is a Type 90 Approved Radio, I figured it would be very simple to program some channels, and disable everything else (commercial users aren’t allowed to adjust things from a keypad).  That task proved difficult as the radio has no obvious way to disable its very frustrating BAND function (half of the display is set to one band and the other half to another).  One can disable the keypad, but you are still left with a VHF on one half and a UHF on the other (or dual VHF if you want), but you can only select channels on one of  them (because the band button is disabled).  That says anything left on the other “unused” half of the display might open the squelch.

I worked around this by programming channel 100 to be 147.985 MHz, setting the power to low, and the squelch to max 9.

The real reason this became an issue, is that the voice prompts only work for a few things, not all of them.  It would be helpful to announce Band A (upper display) or Band B (lower display), or perhaps use a higher beep for A than B, but Wouxun didn’t think that through.

Please, please, please, for the love of everything sacred, radio vendors should spend more than 30 seconds thinking of how a visually impaired user would want to use your radios and realize that no amount of screen prompts will help someone get out of an unwanted situation if they can’t see.  Use voice prompts for everything or at least chose your beep frequencies so someone can hear what is going on.

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March to 1500 unique parks continues, along with 120 CWTs

Posted on July 15, 2024 by robert

As of today, I have 1426 unique POTA parks confirmed.  Twenty days ago, the count was 1401, so I’m adding a scooch over 1 park a day.  So the end of September seems like when I might get my goal of 1500 completed.  And the CWT Gold Medal should wrap up by the end of October, which is when I should hit 120 (currently at 84, so 36 remain).  Fingers are crossed!

Posted in CWT, Goals, Hunter, POTA | Leave a comment

Hello Old Friend!

Posted on July 2, 2024 by robert

From the ARRL:  “Effective 12:00pm ET / 16:00 UTC we will be returning Logbook of The World® (LoTW®) to service.”  That is fantastic news!

Current Queue Status for LotW

I uploaded the logs that I had waiting since things went down in early May.  When I logged into my account today, this is what I saw:

When I synchronized DXKeeper and LotW, the most recent LotW confirmation was from May 9.  So we are a couple of months behind.  I was surprised there were only 47K logs in the queue (a 16 Hour delay), but I expect very few people know it is back on line.  Hopefully those May and June confirmations will eventually get uploaded.

Posted in ARRL, LotW | Leave a comment

So how did Field Day 2024 go for me personally?

Posted on June 25, 2024 by robert

I had a few tasks to carry out for my club, Newport County Radio Club, during Field Day 2024, which was hazy, hot, and humid (sounds familiar).

I was charged with making a satellite contact, something I had not done since 2020.  I spent two weeks before ensuring that I had calibrated all the satellites that were still in the air (and bemoning all the ones that were no longer available – CAS-x, XW-x, etc.).  My station is shown in the photo below (IC-9700, laptop running SATPC32, and a 3×11 Arrow antenna on a photo tripod).

The first available pass was for RS-44, and would be at the point of closest approach right at 1400 EDT.  With only about 8 minutes to make a contact at that point, I was pretty confident, but imagine my disappointment when I could barely hear any singlas on the satellite and couldn’t hear my downlink at all.  After that failed pass, I did some quick checking and discovered that the VHF and UHF coax cables had been attached to the wrong beam.  EEK!

There was a pass of AO-73 about a half hour later, and I had no trouble making 3 SSB contacts on it (I gave up trying CW as there were no responses other than folks going up and down the band to find themselves sending endless dots and dashes).  A couple of hours later there was a pass of AO-7, and I quickly made a SSB contact on that bird, just to pay homage to the little satellite that still does, 50 years later!

Another task was to pass a section manager message from our site at Glen Park (Portsmouth RI) through a VHF link to my home gateway (WB4SON-10 on 145.050 MHz).  Despite the 21 mile path and some terrain between the two locations, it was an easy S9+++ connection with a full speed data link.  This message was also part of the Winlink Thursday drill for the week before and after Field Day.

As I wrapped up the AO-7 contact, I felt a burst of cool air on my back, a 180 degree change of wind direction.  I suspected there was a downdraft nearby, so I quickly took my equipment apart, stuffed it in my car, and headed home.  A few minutes after I left, the skies opened with a deluge of rain.  I felt sorry for my buddies in various tents still at the site.

When I got home, I copied the W1AW CW bulletin.

My final task was to work the CW station for the final 2.5 hours of the contest on Sunday.  This year I decided to run Search/Pounce, and enjoyed contacts on 10, 15 and 20 meters.

As always, lots of fun

Posted in AO-7, AO-73, CW, Satellite, SatPC32, Winlink | Leave a comment

Still a bit under 100 new parks to go for 2024

Posted on June 25, 2024 by robert

One of my goals for 2024 is to have confirmed contacts with at least 1,500 unique POTA parks.  As of Saturday June 22, I had 1,401 confirmed.

So 99 more parks to go.  Things have slowed down considerably as propagation during daylight hours no longer favors fairly productive areas, as well as the need to work a unique park.

Posted in Awards, From the OM, Goals, Hunter, POTA | Leave a comment

Another K4NYM Milestone: 450 O2O

Posted on June 18, 2024 by robert

Things have slowed down a bit.  I suspect Bill hasn’t been out in the early morning hours as often as he has in the past due to band conditions (the past month+ has seen very weak signals on most bands up here in New England).

Nevertheless, six weeks after the last Operator-to-Operator award, I received one for 450 park contacts with K4NYM today.  Thanks for always being there Bill!!!

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