[Lowfer] Big sig on 17.8 kHz

[ToddRoberts2001 at aol.com]

In a message dated 7/28/2010 4:46:46 A.M. Eastern Daylight Time,  
dwilson314 at verizon.net writes:

It is a US Navy TACAMO aircraft.  I see them use 17.8 once or twice a  
week. 
By the way, they run 50 Bd baudot then the high speed MSK.    The baudot is 
the latest EAM--sample messages saved earlier are below.   also, "Channel 
One" does not refer to the frequency but to the broadcast  channel which 
may 
be on different frequencies and does use other VLF  frequencies at times. 
(The same EAM can also be heard in usb voice on USAF  frequencies like 
11175 
kHz at about the same time.)

Although, the 50  Bd is 50 Hz shift, Multipsk will copy if set for 85 Hz.

...
CHANNEL  ONE
CHANNEL ONE
CHANNEL  ONE
RYRYRYRYRYRYRYRYRYRYRYRYRYRYRYRYRYRYRYRYRYRYRYRYRYRYRYRYRYRYRYRYKKKKKKZCZCZC
ZXLLXLLXLL
ZZ
 
 
Thanks for all the interesting info on the TACAMO signal "Channel  One".
Their airborne VLF transmitter and trailing-wire antenna put out a whale of 
 a signal
on VLF!  Would be interesting to find out how long the trailing-wire  
antenna is?
They may be able to reel out a full 1/4 wave wire on VLF.
73 - Todd WD4NGG