Icom IC-F4TR Adjustment Procedure page 2

TRIMMER ADJUSTMENT for IC-F4TR
ADJUSTMENTADJUSTMENT CONDITIONS
REFERENCE 1 Operating freq:
FREQUENCY 512.000 MHz
Transmitting
OUTPUT 1 Operating freq:
POWER 480.000 MHz
High/Low switch:High
2 Transmitting
3 Operating freq:
500.000 MHz
High/Low switch:High
Transmitting
4 High/Low switch:Low
Transmitting
BPF1-BPF4 1 Operating freq:
480.000 MHz
Set the SSG as:
Level
Modulation :1kHz
Deviation :3.0kHz(W)
Receiving
UNIT
Top
panel frequency counter
Top
panel er screen "Power
Top
panel the antenna conne-
:+20dBuV
:1.5kHz(N)
MEASUREMENT
LOCATION
Loosely couple a
to the antenna
connector
Connected comput-
(Hi)".
Connect an RFpower Maximum output Adjust C467 on
meter to the ante-
nna connector.
Connect an SSG to
ctor and a SINAD
meter with 8 ohm
load to the [SP]
jack.
ADJUSTMENT
VALUE
430.000000 MHz push[up]or[down]
keys on the com-
puter key-board.
80 push[up]or[down]
keys on the com-
puter key-board.
the MAIN unit.
(see detailed
illustration at
right)
4.2 W push[up]or[down]
keys on the com-
puter key-board.
0.5W-2.0W Verify
Minimum distor- push[up]or[down]
tion level keys on the com-
puter key-board.