HP 8920A Application Handbook page 222

Using the Tracking Generator
Passive Cavity Insertion and Return Loss Measurement
POWER
OFF ON
Test Set Options Required
Additional Equipment
Required
Special Test Considerations
222
This procedure is used to measure the insertion loss and return loss of
passive cavities using the Spectrum Analyzer/Tracking Generator
option. The cavities are tuned to the desired pass frequency and band-
pass/insertion loss. Once properly tuned, insertion loss and return loss
are measured. Return loss can be converted into VSWR.
SPECTRUM ANALYZER
ANT IN
RF IN/OUT DUPLEX OUT
MAX POWER 60 W
!
! M AX POWER 200 mW
CONTINUOUS
Adapter
Spectrum Analyzer/Tracking Generator (option 102).
Return Loss Bridge and a 50
See "Coaxial Cable" on page 46
Knob Data Entry
SCREEN CONTROL
M SSG HELP CONFIG HOLD PRINT
RX TX DUPLEX PREV TESTS
USER DATA FUNCTIONS
k1' REF SET METER AVG
INCR INCR INCR X10
k1
: 10 SET
k2'
LO LIMIT HI LIM IT
k2
k3'
CURSOR CONTROL
k3
ASSIGN
k4
RELEASE
PUSH TO SELECT
k5
YES
ON/OFF
SHIFT CANCEL
MIC/ACC VOLUME SQUELCH
1
Ω
2
Keys
INSTRUMENT STATE
ADRS SAVE
MEAS
LOCAL RECALL PRESET
RESET
DATA
7 8 9
ENTER
dB
GHz
4 5 6
dBm
%
MHz
1 2 3
V
s
+ _ kHz
0
mV
Ω
NO ms
ppm % Hz
µV
W dBµV
M EMORY
CARD
AUDIO OUT AUDIO IN
HI LO
MA X MAX
! !
12 v Pk 42 v Pk
Load.
.