[Lowfer] VLF Alphas - mp3

[Laurence KL7 L]

Gary - just for interest I just recorded the current 4 audible Alphas in sequence starting at F1 then F4, F2 than F3 - ie LF to HF
 
 
http://kl7l.com/alphas.mp3
 
The F4 12.09kHz is a singleton as you can hear here
 
regards
Laurence KL7L

 The so-called Alpha transmitters have been coming in well of late, 
morning and evening 
(https://en.wikipedia.org/wiki/Alpha_%28navigation%29). Attached is a 
copy of the 3 main transmitters here, evening on top, morning beneath. 
The number at the end of "alpha" stands for the number of beeps heard 
via audio monitoring. Laurence's grabber (http://kl7l.com/Alaska.html 
and http://kl7l.com/fast00000.jpg) usually shows a 4th alpha at about 
12.091 kHz but for some reason I haven't been able to copy it. Wonder if 
it produces 4 beeps?
-- 
Garry, K3SIW, EN52ta, Elgin, IL


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