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U.S. Coast Guard frequencies and usage schedules
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The following was picked off the packet BBS of N2GJJ. Please add comments,
additions through the SWL conference (type j;swl from the main menu). SYSOP.
Msg# TR Size Read To From @ BBS Date Time
138 BN 3845 5 ALL WB3JOE N2GJJ 870113 0922
Title: Coast Guard Frequencys
At WB3JOE: 205 From WB3JOE Rcvd 870113/1208, Sent 870113/1413 UTC
The following is adapted from data
received by Jay N3CHG and the resp-
onse given by Dale KB1AJ regarding the
use and frequencies used at Coast
Guard stn NMN Portsmouth Va. Both
of these gentlemen are acknowledged
with thanks...
***All freqs Khz, times are GMT
CW HF safety and Liason traffic:
Working series guarded:
8465 8363.2-8363.4
12718.5 8364-8364.8
16976 8362.4-8363.2
12544.8-12546
12546-12547.2
12543.6-12544.8
16726.4-16728
16728-16729.6
16724.8-16726.4
All frequencies are guarded 24 hrs
a day by scanning receivers except
the 16 Mhz channels which are
guarded from 1100-2300 daily.
Voice (USB) safety and Liason Tfc:
***Note all frequencies are carrier
frequencies...add appropiate offset
as required*****
Coast Ship Times guarded
4428.7 4134.3 2300-1100
6506.4 6200 0000-2400
8765.4 8241.5 0000-2400
13113.2 12342.4 1100-2300
17307.3 16534.4 on request only
General CW broadcast and notices:
8090.0-continuously
12135.0-continuosly
16180-continuously
20225-1200-0000
Time Traffic
0200-0600 CW training-6-20 WPM
0600-0800 Red Sea, Meditteranean,
Black sea, Arctic and
Western Atlantic wind and
sea warnings
0800-0900 Hydrolant, Ice warnings
and special warnings
1000-1300 Hurricane and other wx
warnings for Western
Atlantic Caribbean and
Gulf of Mexico
1500-1600 Navarea IV, Ice and special
warnings
1600-1700 Hydrolant, Ice and special
warnings
1700-1800 Repeat of 1000 broadcast
2000-2100 Tropical Wx summary and
Gulf stream locations
2100-2200 same as 1500 broadcast
2200-0100 same as 1000 broadcast
Voice (USB) broadcast and working
Frequencies:
Wx broadcasts at 0400 0530 1000 1130
1600 1730 2200 and 2330
Shore Ship Time
4428.7 4134.3 2300-1100
6506.4 6200 24 hours
8765.4 8241.5 24 hours
13113.2 12342.4 1100-2300
17307.3 16534.4 on request
CW working frequencies for mariners:
NMN ship range time
8465 8362.4-8364.8 24 hours
12718.5 12543.6-12547.2 24 hours
16976 16724.8-16729.6 1100-2300
Offshore and High Seas forecasts:
GMT Fcst A B C D E
0400 01 x x x
0530 h x x x
1000 02 x x x
1130 h x x x
1600 02,g x x x
1730 h x x x
2200 02,g x x x
2330 h x x x
Fcst codes:
01 Offshore forecast for West Cen
North Atlantic, SW N Atlantic
Caribbean and Gulf of Mexico
02 same as 01 including New England
h High seas Forecastfor N. Atlantic
West of 35 degrees West, Caribbean
and Gulf of Mexico
g Gulf stream location
Freqs:
A 4428.7
B 6506.4
C 8765.4
D 13113.2
E 17307.3
According to the sample QSL letter,
the receiver site is located in
Chesapeake, Va. with the transmitter
site located in Pungo, Va. They use
Collins 651s-1a receivers, Collins
HF8090 10 kw HF transmitters and
FRT89 1.5 kw MF transmitters. The
receive antenna consists of Vertical
and horizontal Omni directional
rotatable Log Periodic and Herms Loop
arrays. The transmit antenna system
consists of Vertical and Horizontal
Omni Directional fixed and Rotatable
Log Periodic arrays and MF Transmit
towers.
D R O O L .....
Hope this info is of help to the
mariners out there...by the way KB1AJ
is a RM1 at that station so this info
is bound to be accurate...any errors
that have crept into this are entirely
mine 73s.
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