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Dear Uwe, LF Group,
There are 3 (?) alpha beacons, each one transmits
on the 3 frequencies in a repeating sequence. The sequence is made up of 6 time
slots of 0.4s with a 0.2s gap between them. So if a beacon transmits in one of
the time slots, it sounds like a dash, or if no beacon transmits in that time
slot, it sounds like a space. The signal strength of each dash varies, depending
on which beacon is transmitting, and how far it is from your QTH. Also the
sequence is different on the 3 frequencies -at my QTH, at present I
hear:
11.905kHz "T O", with the T stronger than the
O,
12.649kHz "T T", with the second T
strongest
14.881kHz "T M", with the T stronger than the
M
If you can listen in a 3kHz bandwidth to all 3
frequencies at the same time, it becomes more obvious.
Cheers, Jim Moritz
73 de M0BMU
----- Original Message -----
Sent: Thursday, January 20, 2005 10:00
AM
Subject: LF: Frequency - List ?
I am currently listening below 100
KC.
So SAQ was heard too.
I was also tuning arround and heard digital
modes and CW beacon . Lately strong audible at 16 KHz " T M "
The first sign in "TM" is stronger as following
"M"
another "T" is at 13,5 KHz
In my QRG - List are this Beacons not
listed.
Who knows TM and T
Uwe, DK1KQ
ad does a german LF reflector
exists?
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