Rear Panel - Major M580 Instruction Manual

Am/fm 2-way radio
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сап select channels 41 through 80.
Each channel sélection is made with
the channel selector (5).
[3] VOLUME/ON-OFF
Varies the Sound output from the
speaker.
Also incorporâtes an "on-
off" power switch at the extreme
counter-clockwise position.
[4] SQUELCH CONTROL/РА SWITCH
This control is used to eliminate any
annoying background noise when no
signais are present.
sensitivity to incoming signais is ad-
justable.
When the Squelch control
is rotated to the fully clockwise
position, it provides maximum squ­
elch; in the fully counter-clockwise
position, it provides minimum squ­
elch.
In fully
position past click, the transceiver is
converted into PA [Public Address]
mode.
[5] CHANNEL SELECTOR SWITCH
Rotary switch selects one of 40

REAR PANEL

4
The degree of
counter-clockwise
channels for both the high band and
low band.
Channels 1 through 40
are obtained with the Hi-Lo Band
switch in Lo (depressed) position,
then channels 41 through 80 are
obtained
with
(released) position.
[6] TX INDICATOR
Lights up in the transmit mode.
[7] AM-FM SWITCH
Permits you to select the mode of
operation, AM or FM.
[8] NB + ANL SWITCH
Selects standard ANL and special RF
noise silencing circuit to combat
ignition noise simultaneously.
[9] S-PRF METER
2-function meter indicates relative
incoming signal strength in "S" units
on upper scale when receiving, lower
scalę marked POWER indicates the
relative RF
power
transmitting.
the
switch in Hi
output when

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