Chapter 2: Operation
16
VHF radio communication
transmits on the displayed channel. If a signal is received, it is received on the
displayed channel.
Engagement status
The radio is engaged when you press
PTT
. This is indicated with the tab
in the display. Engangement protects the communication from being
interrupted by incoming DSC calls.
Reduced transmission power LO
Press the key
1W
to toggle the transmit power between low (1 W,
LO
is
displayed) and high (25 W).
Local mode, 10 dB attenuation
Press the soft key
LOCAL
to add 10 dB attenuation.If
LOCAL
is not in the
display, press the soft key
MORE
until
LOCAL
appears in the display.
US channels: Overriding LOW power for channels 13 and 67
When running in US mode you can override low power on the alternative call
channels 13 and 67. Do as follows:
1. With the VHF radio set to 13 and 67, press
PTT
on the speaking device.
2. Press the soft key
OVRIDE
to transmit with full power.
When you release the
PTT
button, the transmission power goes back to
low.
Note
Local mode is automatically exited when selecting channel 16 by
pressing
16/C
button. If you want to use attenuation on channel 16 or
a call channel, you must set it manually each time.
Summary of Contents for TT-6222A VHF DSC
Page 1: ...TT 6222A VHF DSC U s e r M a n u a l ...
Page 2: ......
Page 3: ...TT 6222A VHF DSC User manual Document number 98 131186 NEU D Release date December 5 2012 ...
Page 59: ...Chapter 2 Operation Setup 45 22222 Operation SETUP EXIT Top level standby ...
Page 62: ...Chapter 2 Operation 48 Setup ...
Page 72: ...Chapter 3 Service maintenance 58 Warranty and returning units for repair ...
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Page 90: ...Thrane Thrane A S info thrane com thrane com U s e r M a n u a l ...