FEC - SITOR B
THE FOLLOWING MARINE STATIONS TRANSMIT FEC SITOR B WHICH HAS A SHIFT OF 170 HZ AND A SPEED OF 100 BAUDS
PORTSMOUTH / NMN |
4212 KHZ |
ON REQUEST |
PORTSMOUTH / NMN |
6316 KHZ |
2300 - 1100 |
PORTSMOUTH / NMN |
8428 KHZ |
24 HOURS |
PORTSMOUTH / NMN |
12592.5 KHZ |
24 HOURS |
PORTSMOUTH / NMN |
16819.5 KHZ |
24 HOURS |
PORTSMOUTH / NMN |
22389.5 KHZ |
1100 - 2300 |
|
||
BOSTON / NMF |
6314 KHZ |
0000 0100 |
BOSTON / NMF |
8416.5 KHZ |
1200 1600 |
BOSTON / NMF |
12579 KHZ |
1200 1600 |
BOSTON / NMF |
16806.5 KHZ |
1200 1600 |
NAVTEX STATIONS
YOU CAN ALSO LISTEN TO THE NAVTEX BULLETINS ON 518 kHz - UA9OSV'S SOFTWARE 'TRUTTY' OR 'SEATTY' IS IDEAL FOR THIS. A LOT OF PEOPLE SEEM TO HAVE PROBLEMS WITH NAVTEX HERE IN THE U.K, BUT I THINK THAT THEY ARE PROBABLY TUNING A BIT TO HIGH AND HEARING THE NARROW SHIFT ENCRYPTED RTTY STATION THAT SEEMS TO OPERATE AROUND THE CLOCK AT ABOUT 520 kHz.AS MANY NAVTEX STATIONS SHARE THE SAME FREQUENCY THEY 'SLOT' IN WITH EACH OTHER TO MINIMISE INTERFERENCE AND YOU OBVIOUSLY WILL ONLY HEAR THE NEARER ONES TO YOUR QTH, SO HAVE A BIT OF PATIENCE AND ALL THE STATIONS IN YOUR AREA WILL SHOW.IF YOUR RECEIVER DOES NOT GO DOWN TO 500 kHz OR IS A BIT DEAF ON THE LOWER BANDS YOU CAN BUILT YOURSELF A L.F CONVERTER AND THEN TUNE THE SIGNALS IN ON THE 4 MHz BAND.SEE BELOW FOR THE CIRCUIT DIAGRAM.
ALTHOUGH THE PRIMARY NAVTEX FREQUENCIES ARE 518 kHz & 424 kHz, 490 kHz IS USED FOR LOCAL LANGUAGE TRANSMISSIONS AND 4209.5 MHz IS USED FOR TROPICAL OR LONG RANGE USE.
WORLD WIDE NAVTEX AREAS
