5-5 TRANSMITTER ADJUSTMENTS

The following adjustments must be performed at “ADJUSTMENT MODE” after “SWR DETECTOR” and “RECEIVER” ADJUST- MENTS in the SECTION 5-3 and 5-4.

ADJUSTMENT

ADJUSTMENT CONDITIONS

 

MEASUREMENT

 

VALUE

ADJUSTMENT

 

 

 

 

 

 

 

 

 

UNIT

 

LOCATION

UNIT

ADJUST

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

TRANSMIT

1

• While pushing

HM-146’s [CALL]

Rear

 

Connect an RF power

 

Maximum out-

MAIN

L706

PEAK AND

 

switch and RX-26’s [EMG] switch, turn

panel

 

meter to

the

[ANT]

 

put power

 

 

 

TOTAL GAIN

 

power ON.

 

 

 

connector.

 

 

 

 

 

 

 

(TX PEAK)

 

• Connect an audio generator to the

 

 

 

 

 

 

 

 

 

 

 

 

[MIC] connector and set as:

 

 

 

 

 

 

 

 

 

 

 

 

Frequency

: 1.5 kHz

 

 

 

 

 

 

 

 

 

 

 

 

Level

: 3 mV

 

 

 

 

 

 

 

 

 

 

 

 

• Push [1] switch to enter the TX adjust-

 

 

 

 

 

 

 

 

 

 

 

 

ment mode (LCD displayed: “TX SET”).

 

 

 

 

 

 

 

 

 

 

 

 

• Push [ENT] switch, then the transceiv-

 

 

 

 

 

 

 

 

 

 

 

 

er is transmitting.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

(TOTAL GAIN)

2

• After setting 50 W, push the [OK]

 

 

 

 

 

 

50 W

RC-26

[VOL]

 

 

switch to write the adjustment value in

 

 

 

 

 

 

 

 

DIAL

 

 

the memory.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

TX POWER

1

• LCD displayed :“TX POWER HIGH”

Rear

 

Connect an RF power

 

88 W [AUS]

RC-26

[VOL]

(HIGH)

 

• Set the audio generator as:

panel

 

meter to

the

[ANT]

 

125 W [OTH]

 

DIAL

 

 

Frequency

: 1.5 kHz

 

 

connector.

 

 

 

 

 

 

 

 

 

Level

: 30 mV

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

2

• After setting 88 W, push the [OK]

 

 

 

 

 

 

 

 

 

 

 

 

switch to write the adjustment value in

 

 

 

 

 

 

 

 

 

 

 

 

the memory.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

(MIDDLE)

1

• LCD displayed :“TX POWER MID”

Rear

 

Connect an RF power

 

50 W

RC-26

[VOL]

 

 

• Set the audio generator as:

panel

 

meter to

the

[ANT]

 

 

 

DIAL

 

 

Frequency

: 1.5 kHz

 

 

connector.

 

 

 

 

 

 

 

 

 

Level

: 30 mV

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

2

• After setting 50 W, push the [OK]

 

 

 

 

 

 

 

 

 

 

 

 

switch to write the adjustment value in

 

 

 

 

 

 

 

 

 

 

 

 

the memory.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

(LOW)

1

• LCD displayed :“TX POWER LOW”

Rear

 

Connect an RF power

 

10 W

RC-26

[VOL]

 

 

• Set the audio generator as:

panel

 

meter to

the

[ANT]

 

 

 

DIAL

 

 

Frequency

: 1.5 kHz

 

 

connector.

 

 

 

 

 

 

 

 

 

Level

: 30 mV

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

2

• After setting 10 W, push the [OK]

 

 

 

 

 

 

 

 

 

 

 

 

switch to write the adjustment value in

 

 

 

 

 

 

 

 

 

 

 

 

the memory.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

SWR

1

• LCD displayed :“SWR1.0”

Rear

 

Connect an RF power

 

• Push the [OK] switch to write the

 

DETECTOR

 

 

 

panel

 

meter to

the

[ANT]

 

adjustment value in the memory.

 

 

 

 

 

 

 

connector.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

2

• LCD displayed :”SWR2.0”

 

 

Connect

the

100

 

 

 

 

 

 

 

 

 

 

 

load (or SWR 2 dumy

 

 

 

 

 

 

 

 

 

 

 

load) to the [ANT] con-

 

 

 

 

 

 

 

 

 

 

 

nector.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

5 - 9

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Icom IC-F7000 service manual Transmitter Adjustments