Jump to: navigation, search
Antennas.jpg Tux-radio-300.png Caution-non-ionizing.png Arrl-diamond.jpg

Welcome to

This site is dedicated to Amateur ("ham) Radio and related topics at AA6E, Branford, Connecticut, USA. (So what is Amateur Radio?)

AA6E can currently operate in the 80, 40, 30, 20, 17, 15, 12, 10, 6, and 2 Meter and 70 centimeter Amateur bands (3.5 to 450 MHz), at power levels from 5 to 1500 Watts. Operating modes include CW (Morse Code), digital keyboard modes (JT65, PSK31 and others), SSB voice, narrowband FM, and more.

In ham radio, we often identify by our callsign. AA6E is the alter ego of Martin Ewing. You can see some biographical data here.

Recent Publications

Some notable covers!

QST April, 2014
QEX Jan/Feb, 2014
Published 2012

Amateur Radio publications by Martin Ewing, AA6E. (New: Some articles are available here in PDF form.)

  • Icom IC-R8600 Communications Receiver (review, QST, November, 2017, pp 47-54) PDF
  • Member Profile, QST, March, 2017, p 13. (biographical) PDF
  • FlexRadio Systems FLEX-6500 SDR Transceiver and Updated SmartSDR for Windows Software (review, QST, February, 2017, pp 53-59) PDF
  • FlexRadio Systems Maestro Control Console (review, QST, November, 2016, pp 54-58) PDF
  • LabNation SmartScope Model A14 (review, QST, June, 2016, pp 56-57)
  • HobbyPCB RS-UV3 Radio Shield (review, QST, April, 2016, pp 49-51)
  • Down East Microwave 2MLDPA75 2 Meter Amplifier (review, QST, December, 2015, pp 47-48)
  • Apache Labs ANAN-100D SDR HF/6 Meter Transceiver (review, QST, October, 2015, pp 45-52) PDF
  • RadWAV SkyPi-40 Transmitter Kit (review, QST, July, 2015, pp 53-54) Put your Pi on 40 meters!
  • Arduino Projects for Amateur Radio (New Books, QST, June, 2015, p 44) This book, by Purdum and Kidder, is a good one to get hams started with the Arduino.
  • FlexControl USB Tuning Knob (sidebar to Product Review: FlexRadio Systems FLEX-6300 Transceiver, FLEX-6700 Transceiver, and SmartSDR for Windows Software), QST, April, 2015, p. 53. PDF
  • FlexRadio Systems FLEX-6300 Transceiver, FLEX-6700 Transceiver, and SmartSDR for Windows Software (review, QST, April, 2015, pp 47-58) Review of the FlexRadio 6000 "Signature" line of HF/6 SDR transceivers. PDF

--> Published before 2015

--> More at Publications.

Radio Astronomy and Amateur Radio

We have recently started up a discussion group for folks who have a professional background in astronomy, particularly radio astronomy, and also in Amateur Radio. If you happen to fall into this happy group, please sign yourself up and join us at

Other Topics

  • Tiny Computers. Using small boards to run large (typically Linux-based) software applications is an interesting and relatively inexpensive pursuit. We are using the Beagleboard, Raspberry Pi, and similar boards. Arduinos and PICs are fine for smaller applications, but the Linux-capable boards offer ARM processors with mass storage and a rich selection of peripherals.
  • Saga of the ISPs. We have struggled with a number of Internet Service Providers and tried to resolved some engineering problems, particularly with the AT&T U-verse service we installed in Sept., 2010. We asked is it compatible with Amateur Radio? Does it even work reliably without ham interference? Well, the quick answer is no, it's not compatible with HF operation below 10 MHz at 100 W or more, at least not without major effort. So now the story is about Comcast, DOCSIS 3.x, etc.
  • GPS in the Shack, Adventures in time-keeping, time-tagging, and watching for continental drift.

More about AA6E

ipv6 ready