Operation Manual

31
Transmitter Operation
code), followed by “ ” (Digital Coded Squelch, Encode/Decode). One additional
press will disable all repeater-access tone systems. See the next section for a discus-
sion of DCS operation.
5. If the default repeater access tone are not appropriate for your area, it also may be set
independently for each band. To change the repeater access tone:

Press and hold the (TON) key for one second. This instantly recalls Menu #48
(TONE FREQ).

Rotate the knob to select the desired CTCSS frequency.

When done, press and hold the key for one second so save the new setting and
exit to normal operation.
6. Set the transceiver’s receiver to the repeater output (downlink) frequency.
7. Close the PTT switch and speak into the microphone. You will observe that the trans-
mitted frequency has shifted according to the setting of the
(RPT) key.
8. Release the PTT switch to return to the Receive mode.
9. With repeater shift activated, you can temporarily reverse the transmit and receive fre-
quencies by pressing the
(REV) key. The “ ” icon will blink while “Reverse” shift is
activated. Press the
(REV) key again to revert to the “Normal” shift direction.
10. When you are nished with repeater operation, you may wish to set the repeater shift
to simplex by pressing the
(RPT) key, and disable the CTCSS or DCS tone by
pressing the
(TON) key.
11. On many transceiver versions, the Automatic Repeater Shift (ARS) feature is enabled
at the factory. This feature automatically activates the appropriate repeater shift when
you are operating inside the designated 144 MHz or 430 MHz FM repeater sub-bands
in your country. If you wish to change the settings for the ARS, use Menu #01 (144
ARS) or Menu #02 (430 ARS) (see page 54).
If your local repeaters need a 1750-Hz burst tone for access (typically in Europe),
press and hold in the front panel’s
key to transmit the burst tone.
Tone Search Scanning
In operating situations where you don’t know the CTCSS tone being used by anoth-
er station, you can command the radio to listen to the incoming signal and scan in
search of the tone being used.
To scan for the CTCSS tone in use:
1. Press the
key momentarily, then rotate the knob, as needed, until Operat-
ing Function Row 12 [TCH, DCH] appears on the display.
2. Press the
(TCH) key to activate CTCSS Encoder/Decoder; (the “ ”
icon will appear on the display) and start scanning for the incoming CTCSS tone.
3. When the radio detects the correct tone, it will halt on that tone, and audio will be
allowed to pass.
4. Press and hold in the
(TCH) key for one second; the CTCSS tone detected
will be stored as the “current” tone, so it may be used for memory storage purpos-
es, and you may now exit to normal operation.