IFR FM/AM-1200A

! MODULATION
MODULATION MODULATION
I METER CONTROL
INPUT SOURCE
METER RANGE METER
SCALE
POSITION
(Ref.
F i g .
3 - 2 )
WATTS
AVG
15
150
15 WATTS
( f u 1 1
T/R
CONNECTOR
scale)
to 150
3
15
watts
( f u 1 1
PK
150
scale)
kHz/%X10
FM/AM-1200S/A
2 kHz OEV/20% AM
( A 1 1
Positions)
Demodulator
( f u 1 1 scale)
to
1 & 2
60
kHz DEV/600%
AM
( f u 1 1
scale)
BATT TEST
Internal 0
to
20 V DC
1
Battery
SIG
ANTenna Relative
signal
None; observe
Connector strength
(not
relative deflec-
DIST
SINAD
calibrated) t ion of
needle
EXT
MOD/SINAD
0% to
20%
Connector
EXT
MOD/SINAD
3 dB to 20
dB
Connector
Table 3-2 Modulation Meter Control Positions
For Accurate Power Meter measurements. set RF Level
Attenuator Control (9) to any position other than
-20 dBm.
meter
1
4
3-3
06