ARRL Field Day 2017 – QRP Portable

In contrast to my field day adventures last year, in which I hung out with the folks from the North Shore Radio Club and ran 100W on a K3S, this year I opted for a decided more small-scale approach. Using my ATS-4 receiver, I ran 3.5W CW on 15m, 20m, and 40m for about four hours Saturday afternoon in the lakefront park here in Chicago.

My antenna was a single 40-some-odd-foot wire hung from a tree, fed by my ZM-2 antenna tuner. I think when I built the ZM-2 last year, I goofed something up in the SWR circuitry – the built-in LED should go out at minimum SWR, but mine seems to be brightest at low SWR. To compensate for this, I brought along the MFJ-207 Antenna Analyzer I got at the SMCC Hamfest last year and used that to adjust the antenna tuner.

With the big analog, multi-octave dial on the front of the 207, I found it useful to first tuner the ATS to the desired frequency (say, 14.030) while attached to the antenna and adjust the analyzer until I heard the “WHOOP” of its signal generator in my headphones. With the frequency of the analyzer and receiver close to matching, I’d move the coax back from the tuner to the analyzer and adjust the ATU until the 207 showed lowest SWR. Reconnect the ATS, and away we go!

The MFJ-207 Antenna Analyzer covers up to an octave with a half-turn of the variable cap. Listening for its signal on a receiver made it much easier to find a specific frequency.

I used a new battery setup for this outing – a 12V, 6000mAh TalentCell lithium-ion pack that I borrowed from work. I love this pack – a little less than a pound, charges from a wall-wart, and has a built-in barrel connector and on-off switch. There are also models with a built-in 5V USB charging port, for topping off cell phones and other devices on the go. While the ATS is designed to run at 12V MAX (not 13.8V), I found that the 12.2V the pack was putting out proved to be fine – it seems the limitation is in the heat dissapation from the BS170 finals, and running relatively low duty-cycle search and pounce that wasn’t an issue. I’ll be ordering one for my own use soon. (Or perhaps the even more compact 3000mAh version – the size of a deck of cards!)

The rest of the pack list included:

  • A HamKey brand iambic paddle
  • A golfball and a kite-string winder for getting the antenna wire into a tree
  • A pair of Koss UR-20 headphones
  • A small battery-powered speaker with 1/8″ aux input
  • Variable DC and Coax jumpers
  • A notebook and pen
  • A folding camp chair.

All of the above fit into a small laptop bag, along with a few other tools and bits I didn’t end up needing.

The full field day setup, minus the antenna.

I managed 69 contacts, all QRP CW hunt-and-pounce, during my operating time – no tremendous DX, but I did hit a couple of rocky-mountain states and a plethora of sections up and down the East Coast. Final score was just over 1000 pts – that QRP multiplier really stacks up!

I also couldn’t have asked for better weather on the day – 72 degrees and slightly cloudy with a pleasant breeze. Simply stupendous.


Hear you on the air!


Catching Up: CQ World Wide CW, 2016

Having started a new job in October that’s keeping me quite busy, I’ve resolved to care less about the timeliness and length of posts, and to prioritize getting them down.

To that end, here’s a brief recollection on the CQWW CW Competition that I participated in back in November. One of the largest international contests of the year, this was certainly a hopping time on the air. I participated using my repaired ATS-4, at around 3W, and there were a good many stations I could hear but not contact. Nevertheless, I ended up with 17 contacts over 11 countries and 7 CQ Zones. My best DX was ED8X in the Canary Islands – a little over 4000 miles away, for better than 1300 miles/Watt. What a day

I wracked up a host of ATNO’s (All Time New Ones, or new countries in the log), including: Curacao, Dominica, Bermuda, the Canary Islands, the Cayman Islands, Bonaire, French Guiana, Turks and Caicos, and Peru.


I’ll be back on the air for CQWW 2017. Hear you on the air!


First 30m Contact, and a Stateside Update

This past weekend, late in the evening, as I was fiddling around with the ATS-4 seeing how the bands were doing, I ran across a particularly strong CW signal on 10.116 MHz, near the bottom of the 30m band. It turned out to be the end of a QSO between KA7OGK and W5IP, the latter of whom was coming in 5-by-8 here in Chicago. When they wrapped up their conversation, I through out a quick call to W5IP, and she came back! I could tell that Carroll (whose name I’d gleaned from the earlier conversation) was heading out, as our exchange was much more perfunctory than conversational. But it allowed me to put my first 30m contact (as well as my first Texas station, as it turns out).

And with that, I’ve now made a contact on every band I currently have access to – 80m, 40m, 30m, 20m, and 15m! So far 40m and 20m have proved to be my workhorse bands, but some late-night exploration makes me think I should be paying more attention to 80m later in the evening.

With the new 30m Texas contact, and one with a nice Louisiana ham this morning (WB5WDC, retired petroleum engineer who used to work not far from Chicago in Crystal Lake), my total number of states worked is up to 10: Arizona, California, Colorado, Louisiana, North Carolina, New York, Pennsylvania, Texas, and Virginia:

WAS Map 10-26.png

Until I can put a longer or more-vertical Antenna in the air, I don’t think I’ll be chasing foreign counties for a little while, but Worked-All-States seems like an achievable short-term goal. Of course, of the 10 states I’ve worked, I only have confirmation from California and Pennsylvania, so there’s a way to go yet. But I’m having a great time acquiring my own “All Time New One” states.

Hear you on the air!