User's Guide

MARITIME BAND - ADDITIONAL OPERATING INFORMATION
GENERAL
100 Radios incorporating the maritime band option (Option 10) are user selectable between the
following operational modes:
❏
Normal (non-maritime band operation)
❏
Ship (maritime band operation)
❏
Shore (maritime band operation).
NORMAL MODE
101 The normal (or non-maritime mode) will perform identically to a radio without maritime capability.
The only exception is an additional key sequence that is required to switch into one or other of the
maritime modes (see paragraph 109).
SHIP/SHORE MODES
102 In maritime mode, the channels 1 to 28, 60 to 74 and 77 to 88 (see Table 4-4) are overlaid with
international maritime VHF frequencies. These particular channels cannot be altered by the operator
although the remaining channels still have this capability.
103 As the actual frequency of transmission and reception are pre-set for maritime channels, the 6-digit
display will either indicate ‘SH IP.’ or ShorE.’. The display will also include one of the following suffix
characters:
‘I’ - denotes International selection (i.e. SH IP.I or ShorE.I)
‘A’ - denotes American selection (i.e. SH IP.A or ShorE. A)
104 The format in use may be toggled by a key sequence (see paragraph 109).
Ship/Shore View Modes
105 In the ship/shore view modes the current operating frequency is displayed at all times. During
reception, the receive frequency is displayed. the display will then indicate the transmit frequency during
subsequent transmissions (this allows test engineers to check that the radios are transmitting and
receiving on the correct frequency).
Section 4 3000DV2 Radios
Page 26