HP 8924C Assembly page 282

Chapter 6, HP 8924E Performance Verification
RF Analyzer FM Bandwidth Performance Test 24
RF Analyzer FM Bandwidth
Performance Test 24
Description
Setup
AM/FM Test Source
Measuring Receiver
282
A low noise/wide bandwidth AM/FM test source provides an RF carrier that is
modulated by the audio analyzer's source. The signal is measured by the Test
Set's internal RF analyzer and the measuring receiver. The audio level is varied
until the modulation is at the desired level as measured by the measuring receiver.
The audio rate is varied in several steps from 20 Hz to 70 kHz. The difference
between the maximum and minimum FM peak deviation is noted.
AUDIO
FM
INPUT
OUTPUT
/
Ω
INPUT 50
Audio Analyzer
OUTPUT
20 Hz - 100 kHz
HIGH
CDMA CALL
CALL
US
k1'
k1
k2'
k2
k3'
k3
ASSI
k4
RELE
k5
SHIF
MIC/
RF IN/ DUPLEX ANT
!
!
MAX
POW MAX
OF O
ANT IN
N:\mkt\MANUALS\HP8924C\ALR\24e_pt.fb
FUNCTI INSTRUMENT
MSG PRIN I/O CONF ADRS SAVE HOL
END MEA
ANS HELP PRIN PREV TEST LOCA RECA
CDMA DATA DA
CELL RAN REF METE AVG
CALL RX INCR INCR INCR 7 8 9
ENTE
SPECT MSRP LO HI
dB
GEN TX
4 5 6 GHz
CURS PUSH
%
CDMA
1 2 3
MHz
ENCO DECO
RF RX
s
+ _
ACP 0 kHz
AF TX
Ω
YES NO ms
SPEC SCOP
RF ppm % Hz
ON/
DUPL CAN
VOL SQUE AUDIO AUDIO
HI
! MAX ! MA
PRES
MEM
L