Major M580 Instruction Manual page 7

the antenna and power source are con­
nected. If y ou hâve not already done so,
plug in the microphone.
RECEIVING
1. Rotate the Squelch control 4) to
about 9 o 'clock position initially.
2. Select the AM or FM mode by the
AM-FM switch 7), as y ou desire.
3. Select desired chnnel by both the Hi-
Lo Band switch 2) and the Channel
selector switch 5) as indicated by the
LED digital readout.
4. Set the NB + ANL Switch 8) to the
OFF position initially.
5. Rotate the RF Gain control 2) to
maximum [fully clockwise].
6. Rotate the Volume/On-Off control 3)
clockwise to apply power to the trans-
ceiver.
Since the transceiver is fully transistor-
ized, operation will be instantaneous.
Continue rotating the Volume/On-Off
control clockwise to provide a com-
fortable listening level.
TRANSMITTING
WARNING: NEVER ATTEMPT TO
TRANSMIT WITHOUT AN ANTENNA
OR LO AD.
Tо transmit, simply depress the push-to-
7
talk bar on the microphone. The TX In-
dicator Light 6) will corne on as y ou
depress the push-to-talk bar.
microphone 3 to 4 inches from the
mouth and slightly to one side so that the
voice does not project directly into the
microphone. Speak at a normal level —
there is no need to shout. A designed
feature of this transceiver is that high
average modulation
easily at normal voice levels.
PA [PUBLIC ADDRESS]
OPERATION
For PA operation, y ou should use an ex-
ternal 8 to 16 ohm speaker connected to
the "PA" jack [located at the rear of the
transceiver] . The recommended plug for
the "PA" jack is a subminiature phone
plug. To set the transceiver to the PA
mode, set the Squelch control to the füll
counter-clockwise position (past click),
then press the push-to-talk bar on the
microphone and talk into it — your voice
will be hear through the PA speaker.
Tо reduce acoustic feedback when the PA
speaker is mounted on a car or truck, y ou
may hâve to close the vehicle Windows, or
reduce the volume as necessary to stop
any feedback that may occur.
Hold the
can be achieved