From the number displayed, the frequency can be calculated
as follows:
Frequency = 735 + 7.5 x n(Hz).N = number displayed
The CF of 1500Hz should correspond to the channel number
102. This means that during MORSE decoding, the number
appearing should be between 85 to 120. Should the number
differ greatly, then it is possible that the frequency is not
properly tuned. The white level for FAX in the SW range should
lie between 40 and 60. The two frequencies in RTTY and SITOR
should be roughly symmetrical around 102. Likewise in NAVTEX
they should be symmetrical around 102 but with an additional
distance of about 20 to 26.
3.1. Selecting Mode and Decoding Types
In most manuals, the station mode is depicted as A1A, F1B
etc. The following table is an overlook of the practised
abbreviations for transmission modes in marine radio.
The settings matching for the receiver and decoder can also
be taken from the table.
www.Busse-Yachtshop.de email: info@busse-yachtshop.de
