4 BASIC OPERATION

Monitor function

This function is used to listen to weak signals or to open the tone squelch manually.

Push and hold [SQL] to monitor the operating frequency.

“RX” flashes while monitoring.

The [SQL] switch can be set to ‘sticky’ operation in set mode. (p. 41)

You can monitor duplex communication by pushing the

[SQL] switch when the duplex function is in use. (p. 31)

FM

146.100.000

TS 15.0

S1 3 5 7 9

RX

VOL

FM

RX

Receive mode selection

Receive modes are determined by the physical properties of the radio signals. The receiver has 3 receive modes: FM, AM and WFM modes. TV and ATV (ATV type only) also use WFM mode. The mode selection is stored independently in each band and memory channels.

Typically, AM mode is used for the AM broadcast stations (0.495–1.620 MHz) and air band (118–135.995 MHz), and WFM is used for FM broadcast stations (76–107.9 MHz).

Push [MODE] one or more times to select the desired re- ceive mode.

FM

 

 

 

AM

 

 

 

WFM

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

146.010.000

118.000.000

76.000.000

TS

15.0

TS

25.0

TS

50.0

S1 3

 

 

7 9

S1 3

 

 

7 9

S1 3

 

 

7 9

5

5

5

VOL

 

 

 

 

 

 

 

 

 

 

 

 

 

VOL

 

 

 

 

 

 

 

 

 

 

 

 

 

VOL

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

FM

 

 

 

AM

 

 

 

WFM

 

 

 

FM mode

AM mode

WFM mode

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Icom IC-R3 instruction manual Monitor function, Receive mode selection