Magnum AlphaForce Operating Manual - page 10
- 10 -
To tune frequencies in either 10 kHz or 100 kHz incre-
ments, press the STEP button until the desired digit is
flashing. Rotate the FREQUENCY control in either di-
rection. The entire frequency range of the Magnum
AlphaForce can be stepped through in 10 or 100 kHz
increments.
To tune in 1 kHz increments, press the STEP button
until the 1 kHz digit flashes on and off. Rotate the FRE-
QUENCY control. NOTE: When stepping in 1 kHz in-
crements, you are limited to tuning within a 10 kHz
frequency range.
NB: Turns the noise blanker and automatic noise lim-
iter on and off. The noise blanker circuit eliminates pulse
type interference usually associated with automotive
ignition systems. The automatic noise limiter reduces
atmospheric related noise. To activate the NB and ANL,
press the FUNC control and then press the NB button.
NB and ANL will appear on the LCD indicating the noise
blanker and ANL are turned on. To turn off the NB and
ANL, repeat the same process.
1: Memory Channel 1. After programming this button
is memory channel 1. See M.LOAD \ M.SAVE control
for programming instructions.
18. CALL / 2
CALL: The call frequency is 29.300 MHz, FM. The
radio’s operating frequency and mode are automati-
cally reset to this when the CALL button is pressed.
2: Memory Channel 2. After programming this button
is memory channel 2. See M.LOAD \ M.SAVE control
for programming instructions.
19. DIMMER
Press the DIM, or dimmer control, to decrease the
amount of back-lighting on the front panel and LCD
screen.
20. SCAN / SHIFT / 3
SCAN: Scans in increments of 10 kHz. There are two
ways to scan using the front panel controls.
(1) Receive Audio On Scanning: Press the SCAN but-
ton. Scan rate is one step every 5 seconds. To stop
scanning press the SCAN button again, or momen-
tarily press the PTT button on the microphone (scan-
ning will stop without transmitting).
(2) Receive Audio Mute Scanning: Carefully rotate the
squelch control a minimum excursion (refer to 2) until
the receive audio is off. The receiver scan rate will now
be five frequencies per second. When a signal is de-
tected the squelch is automatically disengaged and the
scanning is paused. The squelch circuit will automati-
cally re-engage and the receiver will continue to scan
the moment the received signal is no longer detected.
SHIFT: Used for programming offsets to operate re-
peater networks. The AlphaForce can transmit and re-
ceive on different frequencies.
To program the offset, press the FUNC button and hold
down the SHIFT button for 3 or more seconds. Three
digits will appear on the LCD. This is the offset fre-
quency in kHz. Rotate the FREQUENCY control until
the desired offset frequency is displayed. To return to
the main display press the FUNC button and hold down
the SHIFT button for 3 or more seconds, or momen-
tarily press the PTT button on the microphone (the
transmitter will not be engaged).
To activate the programmed offset frequency, press
the FUNC button, and then press the SHIFT button
once. +SHIFT is displayed on the LCD. The AlphaForce
will now transmit on the frequency that is XXX kHz
greater than the displayed, or receive, frequency (XXX
represents the programmed offset frequency in kHz).
To transmit on the frequency that is XXX kHz lower
than the displayed, or receive, frequency press FUNC,
then the SHIFT button. Repeat this until -SHIFT is dis-
played on the LCD.
To disengage the programmed offset frequency, press
the FUNC button and then press the SHIFT button.
Repeat this until the SHIFT indicator is no longer dis-
played on the LCD.
3: Memory Channel 3. After programming this button
is memory channel 3. See M.LOAD \ M.SAVE control
for programming instructions.
21. LCR / RPT / 4
LCR: Press the last channel recall button to return to
the last frequency and mode that was transmitted on
for more than 3 seconds.
RPT: Repeater Access Tone. Most repeaters require
an 88.5 Hz tone burst to access. To activate the 88.5
Hz tone burst, press the FUNC control and then press
the RPT button. RPT will appear on the LCD indicating
that the tone burst will now automatically be transmit-
ted whenever the PTT is pressed. To deactivate, re-
peat the same process.
4: Memory Channel 4. After programming this button
is memory channel 4. See M.LOAD \ M.SAVE control
for programming instructions.
22. MODE / TONE / 5
MODE: Press the MODE control to select the operat-
ing mode. The operating mode is indicated on the liq-
uid crystal display, AM or FM.