D Transmitting Notes; D Tx Code Channel Selection - Icom IC-F1821D Instruction Manual

D Transmitting notes

• Transmit inhibit function
The transceiver has several inhibit functions which restrict
transmission under the following conditions:
- The channel is in mute condition ('Inaudible' condition;
" " does not appear.)
- The channel is busy.
- Un-matched (or matched) CTCSS is received.
(Depending on the pre-setting)
- Un-matched (or matched) NAC is received.*
(Depending on the pre-setting)
- The selected channel is a 'receive only' channel.
*Digital mode operation only.
• Time-out timer
After continuous transmission for the pre-programmed time
period, the time-out timer is activated, causing the transceiv-
er to stop transmitting.
• Penalty timer
Once the time-out timer is activated, transmission is further
inhibited for a period determined by the penalty timer.

D TX code channel selection

If the transceiver has [TX Code CH Select] assigned to it, the
indication can be toggled between the operating channel
number (or name) and TX code channel number (or name).
When the TX code channel number (or name) is displayed,
[CH Up]/[CH Down] selects the TX code channel.
USING [TX CODE CH SELECT] KEY:
q Push [TX Code CH Select]— a TX code channel number
(or name) appears.
w Push [CH Up] or [CH Down], or rotate [CH Up/Down] to
select the desired TX code channel.
e Push [Call] (or [PTT] during MSK operation) to transmit the
selected TX code.
USING [TX CODE CH UP]/[TX CODE CH DOWN] KEY:
If the transceiver has a [TX Code CH Up], [TX Code CH
Down] or [TX Code CH Up/Down] key assignment, the pro-
grammed TX code channel can be selected directly when
pushed or rotated.
NOTE for PMR or BIIS PMR operation:
• The LCD indication does not change when the operating
channel number (or name) is displayed.
• To check the selected TX code, push [TX Code CH
Select].
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BASIC OPERATION
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