User's Manual

2-9
2-3.2.8 Select Transmit Power Levels
FM
LO MED HI
PWR
8
Pressing the [PWR] key selects the transmit power levels for the transceiver.
The power level annunciator will show the current setting. There are three
power levels, LO, MED, and HI, available in the FM modulation mode and two
power levels, LO and HI, when AM is selected.
2-3.3. SELECTING SPECIAL MODES
The following paragraphs describe the procedures for special operating
modes and
functions of the transceiver. The special operating modes consist of the Beacon-,
Guard-, and
Scan-mode of operation. The special functions consist of Self Calibration of Receive Filters,
Internal Voltage Measurements, and Return to Local Control from Remote operation.
2-3.3.1 Select Scan Mode
Pressing the [MODE] key and then the [SCAN] key activates or de-activates
the SCAN MODE. The scan mode causes the transceiver to cycle through the
preset channels which are flagged as "scan channels", (see Paragraph 2-
3.2.7), searching for an active channel I.e., one where incoming signal
strength is sufficiently large to break squelch). While scanning, the display will
show the channel that it is scanning. The transceiver will scan for 0.5 second
on each selected scan channel. If an active channel is found, the transceiver
will lock on that channel. If that channel becomes inactive for approximately
four seconds, the transceiver will continue the scan with the next flagged
channel. If the operator wishes to continue the scan while on a channel that is
(or was) active, the [SCAN] key can be pressed. When an active channel is
found, that channel's receive frequency will be displayed. If the push-to-talk
key (PTT) is pressed while the transceiver is scanning, it will be ignored. If the
PTT is pressed while a channel is active, the transceiver will go out of scan
mode and into the normal mode using that channel, transmitting on that
channel's preset transmit frequency. If the scan list has less than two
channels, then the LCD will blink "Err-noSC" indicating the transceiver cannot
enter the scan mode. To return to normal operation press the [CH] key
followed by one of the 10 channel numbers [0 through 9]. The Scan Mode will
be cancelled and the transceiver will go to the selected channel.
When the scan mode is de-activated normally, by using the [MODE] plus
[SCAN] keys, or by turning the transceiver OFF then ON, the transceiver will
return to normal operation on the channel which was in use immediately prior
to entering the SCAN MODE.