Nashoba Valley ARC “Tech Morning” Participants Engage in Interesting and Varying Discussions

Stan Pozerski, KD1LE, writes in the February, 2020 issue of The Signal:

“Tech Morning continues to meet every week at 10:15 AM, Mondays at the Pepperell Community Center.

“From week to week we engage in widely (and wildly) varying, ad hoc, discussions on topics of current interest. At times we have a major common project focus, as we had for many months with the Arduino Antenna Analyzer. Mostly though, we just ragchew on our radio interests and issues of the week.

“In a recent session we discussed a kit Peter, N1ZRG, found for building a nixie tube digital clock for those with a big time hankering to solder. It is made up of only discreet resistor-transistor and diode logic! Over 1,200 through-hole parts, with no IC’s.

“Another discussion we recently had was on propagation issues that are impacting our morning 40m CW nets. Since we are in relatively close proximity to each other (max ~17 miles), NVIS propagation is expected to be a determining factor in signal quality. As it is, George, KB1HFT, in North Chelmsford is barely heard by Peter, N1ZRG, in Pepperell, even though George is pumping 50 watts into a resonant Inverted V. George reports that on the same antenna his 1 watt 40 M WSPR signal has been heard in Antarctica by DP0GVN. Hmmm. No NVIS? We set out to investigate.”

Leave a Reply