Am Harmonics And Spurious Output Measurement - HP 8920A Application Handbook

AM Transmitters

AM Harmonics and Spurious Output Measurement

Description
This procedure is used to measure an AM Transmitter's conducted
harmonic and spurious emissions. The spectrum analyzer option is
used to display harmonic and spurious components from 400 kHz to
1000 MHz.
TX TEST
SPECTRUM ANALYZER
RF IN/OUT
POWER
OFF ON
M AX POWER 60 W
!
CONTINUOUS
50Ω COXIAL
CABLE
ANTENNA
(RF OUT)
130
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3 Knob
SCREEN CONTROL
MSSG HELP CONFIG
RX TX DUPLEX
USER DATA FUNCTIONS
k1'
REF SET
INCR
k1
: 10
k2' LO LIM IT
k2
k3'
CURSOR CONTROL
k3
ASSIGN
k4
RELEASE
PUSH TO SELECT
k5
SHIFT CANCEL
MIC/ACC VOLUME
DUPLEX OUT ANT IN
!
M AX POWE R 20 0 mW
ATTENUATOR (OPTIONAL)
1
TRANSMITTER UNDER TEST
Data Entry
Keys
INSTRUMENT STATE
HOLD PRINT ADRS SAVE
MEAS
PREV TESTS LOCAL RECALL PRESET
RESET
DATA
METER AVG
INCR INCR X10
7 8 9
ENTER
SET
HI LIMIT
dB
GHz
4 5 6
dBm
%
MHz
1 2 3
V
s
kHz
+ _
0
mV
Ω
YES NO ms
ppm % Hz
ON/OFF
µV
W dBµV
M EMORY
CARD
SQUELCH AUDIO OUT AUDIO IN
HI LO
M AX MAX
! !
12 v Pk 42 v Pk
SHEILDED
ADUIO CABLE
MICROPHONE
(AUDIO INPUT)
2