SSB Transmitters
166
SSB Rated Output Power/Carrier Suppression Measurement
Description

This procedure is used to measure a SSB Transmitter’s rated output

power into 50 . The transmitter is modulated with two separate audio

signals at different frequencies. The amplitude of each audio signal is

adjusted until the transmitted side-band signals are equal as displayed

on the spectrum analyzer screen. Once properly adjusted, the RF

Output power is measured. A reference is then established, and the

carrier suppression is measured by removing all audio to the

microphone input.

DUPLEXTXRX PREV TESTS
CONFIGHELPMSSG HOLD PRINT
SCREEN CONTROL
LOCAL
ADRS
RECALL
SAVE
MEAS
RESET PRESET
INSTRUMENT STATE
DATA FUNCTIONS
INCR
: 10
REF SET
INCR
SET
METER
INCR X10
AVG
LO LIMIT HI LIMIT
CURSOR CONTROL
PUSH TO SELECT
CANCEL
SHIFT
k1
k1’
k2
k2’
k3
k3’
k4
ASSIGN
k5
RELEASE
USER DATA
789
456
123
0+
_
ENTER
GHz
dBm
dB
MHz
V
%
kHz
mV
s
Hz
µV
ms
%
dBµV
ppm
W
NO
ON/OFF
YES
MEMORY
CARD
AUDIO IN LOHI
!MAX
42 v Pk
!MAX
12 v Pk
AUDIO OUTSQUELCHVOLUMEMIC/ACC
MAX POWER 200 mW
!
ANT IN
DUPLEX OUTRF IN/OUT
!MAX POWER 60 W
CONTINUOUS
POWER
OFF ON
1
2
Knob
TX TEST
50COXIAL
CABLE
ATTENUATOR (OPTIONAL)
SSB TRANSMITTER UNDER TEST
ANTENNA
(RF OUTPUT) MICROPHONE
(AUDIO INPUT)
SHEILDED
AUDIO CABLE
3Keys
Data Entry
SPECTRUM ANALYZER