Armstrong Fans,

So get your radios ready for 19 June 2025 - Noon (EDT).  This is wide-band FM, just like the current band.  So, signals maybe distorted on most VHF communications receivers.  Might be a good time to use that SDR dongle.

More info HERE.

Based on signal reports from back in 2005, you should be able to hear WA2XMN out to about 60-70 miles.  Propagation on 42.8 MHz is a bit better than the current FM band.  Farthest report was from Mt. Greylock, 127 miles, but that's the highest point in Massachusetts at 3,489 feet.

There are a couple of niggling technical details that need to be cleaned up.  I'll keep you informed.

AL - N3FRQ - WA2XMN I.T. Geek
http://www.wa2xmn.ar88.net/