Rf Analyzer Fm Accuracy; Performance Test 20 - Agilent Technologies E8285A Manual

Performance Tests
RF Analyzer FM Accuracy Performance Test 20

RF Analyzer FM Accuracy

Performance Test 20

The purpose of this test is to verify that the Test Set meets the specification limits
in PTR (Performance Test Record)
Record" on page
audio signal from the audio analyzer provides FM for the signal generator. The
signal is measured both by the Test Set's internal RF analyzer and the measuring
receiver. The FM signal comes from the external audio source in the audio
analyzer. The audio level is varied until the modulation is at the desired FM
deviation as measured by the measuring receiver. Results from this test give an
indication of problems in the audio section of the Test Set.
Setup
Figure 6-25
Audio Analyzer
OUTPUT
Signal Generator
FM INPUT
Measuring Receiver
Procedure
1. On the measuring receiver:
2. On the audio analyzer:
180
238. The signal generator provides the RF signal with FM. An
RF OUTPUT
INPUT 50Ω
a. Reset the instrument.
b. Set the measurement mode to FM.
c. Set the detector to PK+.
d. Set the LP Filter to 3 kHz.
a. Reset the instrument.
b. Set the output frequency to 1 kHz.
table 7-20, "RF Analyzer FM Accuracy Test 20
CALL CONTROL
Answer
Call/ End/
Page Release
USER
Cell config
Call
K1' control
K1 MS report
RX test
K2'
K2
K3'
Ref set
K3 Increment
10
Low limit
Assign
K4
Release
K5
IBASIC
reset
Shift Cancel
POWER RF IN/OUT DUPLEX OUT ANTENNA IN
DO NOT apply RF Max power 2.5W
Max power 60 mW
when in standby
ANTENNA IN
S:\agilent\e8285\ALR\Book\chapters\perf_test.fm
UTILITIES
Print Printer I/O config Help
Register Tests Config Previous Message Preset
Hold
Meas
CDMA SCREENS ANALOG SCREENS
reset
Spectrum SMS Address
Gen Authen- Call Duplex Spectrun Local
control tication control analyzer
MS FER Save
TX test TX RX test TX test AF Recall
range analyzer
DATA FUNCTIONS DATA
Meter Average
Enter
Increment Increment 7 8 9
set x 10
High limit
4 5 6 Ghz
dBm
dB
1 2 3 MHz
V
%
0 . +/- kHz
mV
s
mW
Yes No % Hz
On/Off Ratio dB µV
W ms
VOLUME AUDIO OUT AUDIO IN
High Low
Max 12V peak Max
42V peak