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Hi Alberto,
Station you see on 18.3 KHz might be Le Blanc
(Rosnay).
All these VLF stations have highly stabilized
frequencies, but MSK-modulation complicates their use as standards in radio
amateur use.
You can see the real shift frequencies by
multiplying their signal by itself (shift will also
doubled). Their shift is exactly only a half of baud rate as is the general
nature of MSK which some call by name FFSK.
73 Matti OH2ZT
----- Original Message -----
Sent: Thursday, March 27, 2003 12:01
AM
Subject: LF: Re: VLF signals
Matti and Stewart,
....
I have noticed
another signal, may be Matti has an explanation
for this too :
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TNX
73 Alberto
I2PHD
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