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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-

 

o ff”  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. 

The  degree  of

 

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  counter-clockwise

 

position  past  click,  the  transceiver  is

 

converted  into  PA  [Public  Address]

 

mode.

[5]  CHANNEL  SELECTOR  SWITCH

Rotary  switch  selects  one  of  40

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  the  switch  in  Hi

 

(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  output  when

 

transmitting.

REAR  PANEL

4

Содержание M580

Страница 1: ...INSTRUCTION MANUAL...

Страница 2: ...ontrol push pull band switch Hi Lo Built in ceramic filter helps prevent adjacent channel interf rence Built in automatic modulation control circuit Provision for PA operation with volume control Exte...

Страница 3: ...ONE JACK 4 Pin socket for push to talk micro phone supplied 2 RF GAIN HI LO BAND SWITCH RF Gain This control should normally be set to maximum fully clockwise If a storong station blast in and sound d...

Страница 4: ...ckwise position past click the transceiver is converted into PA Public Address mode 5 CHANNEL SELECTOR SWITCH Rotary switch selects one of 40 channels for both the high band and low band Channels 1 th...

Страница 5: ...cable RG 58 U or RG 8 U with matching PL 259 type coaxial connector MOBILE INSTALLATION TRANSCEIVER MOUNTING Before installing the transceiver in a car truck boat etc be sure to choose a location whic...

Страница 6: ...e greatly determined by the efficiency of the antenna system used Due to the complexity of the subject it is not within the scope of this manua to OPERATION INSTRUCTIONS Make sure the transceiver is p...

Страница 7: ...to talk bar on the microphone The TX In dicator Light 6 will corne on as you depress the push to talk bar Hold the microphone 3 to 4 inches from the mouth and slightly to one side so that the voice d...

Страница 8: ...5 65 27 695 6 27 025 26 27 265 46 27 475 66 27 715 7 27 035 27 27 275 47 27 485 67 27 725 8 27 055 28 27 285 48 27 505 68 27 735 9 27 065 29 27 295 49 27 515 69 27 745 10 27 075 30 27 305 50 27 525 70...

Страница 9: ...SCHEMATIC FRONT PANEL...

Страница 10: ...MAJOR ACOUSTICS CORPORATION XX4A12...

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