Free Republic
Browse · Search
News/Activism
Topics · Post Article

To: Clutch Martin

re: “Morse code (CW) is gone by the wayside but plenty of Old Timers l still know how to use it, “

There is digital comm mode (JS8, with JS8CALL being the app) that works down to -24 dB SNR, which is about 15 dB below what a good CW op can copy a message at ... this is great during this period of low sunspot activity (and poor band conditions).

A LOT of development has taken place since the days of PSK31, such as the WSJT suite of low-SNR modes courtesy of Joe Taylor W1JT Nobel Laureate and astrophysicist.

I’ll be running JS8 in a little bit here on 40 meters ...

http://js8call.com/


48 posted on 07/18/2019 6:17:38 AM PDT by _Jim (Save babies)
[ Post Reply | Private Reply | To 8 | View Replies ]


To: _Jim

Thanks, I was generally referring to the military. I’ve copied since BSA and was stationed at 2 USCG Radsta’s, one early morning at NRV we copied USCGC GLACIER NAAO down in the ice around Mcmurdo at barely a whisper. They had lost comms for a few days due to atmospherics. We took a few msgs before the sun came up.

USCG RMs were good ops back in the days of the steely eyed brass pounders.


64 posted on 07/18/2019 7:01:42 AM PDT by Clutch Martin (The trouble ain't that there is too many fools, but that the lightning ain't distributed right.)
[ Post Reply | Private Reply | To 48 | View Replies ]

Free Republic
Browse · Search
News/Activism
Topics · Post Article


FreeRepublic, LLC, PO BOX 9771, FRESNO, CA 93794
FreeRepublic.com is powered by software copyright 2000-2008 John Robinson