Thrane&Thrane SB5006, Operation Manual, Page: 16 / 38

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of available buttons appearing in this area.
The 4 alternative channel tables are empty by default and one or more must be programmed
as required. In the Channel Table page “View” field click the button corresponding to the
table enabled, which will call up the window in Figure 4.9.
Figure 4.9: Example of defining one of the alternative (ALT1-4) channel tables. The channel
number 10 is already defined and the duplex channel number 12 is about to be
defined.
B1 - Only legally licensed channel frequencies may be entered. The VHF radio will only
accept frequencies that are multiples of 12.5 kHz (frequency snaps to next multiple of
12.5kHz).
• Channel – The channel number indicated on the front for that channel (0-99).
• Rx Frequency – Is the channel’s receive frequency specified in Hz.
• Offset – If a duplex channel is required, the offset between the Rx and Tx frequency
is defined (as a positive value in kHz) in this field. Tx fre Offset = Rx
Frequency. The standard duplex offset is 4,600 kHz.
• Channel Type – Simplex (ship-ship) or duplex (shore-ship) channel.
• TX block – Selecting Yes in this field will make transmission impossible on that
channel.
• Power – If 1W is selected transmission will only be possible with output power <1W.
Invalid combinations of channels and offset can be entered, but the radio will not be able to
set up channels outside the legally licensed band, and will subsequently display an error
(E is shown in VHF channel display).
B2 - It is possible to change the appearance name for the alternative channel tables with the
use of the Change Name button.
C (Figure 4.7) – For each channel that can be selected (shared amongst any country mode)
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