Rf Generator Residual Fm; Performance Test 4 - Agilent Technologies E8285A Manual

RF Generator Residual FM

Performance Test 4

The purpose of this test is to verify that the Test Set meets the specification limits
in PTR (Performance Test Record)
Record" on page
the measuring receiver. An external LO is used to improve the residual FM of the
measuring receiver. An audio analyzer with a CCITT psophometric filter is
required to measure the demodulated FM.
Two setups are shown, see
NOTE
capable of measuring signals to 1 GHz. The second setup has a microwave
converter which covers the full measurement range of FM signals to 2 GHz. The
microwave converter's LO must be a low residual FM synthesizer.
Initial Setup
Figure 6-7 Setup for Measurements to 1 GHz
Audio Analyzer
Measuring Receiver
EXT LO
INPUT
Signal Generator
RF OUTPUT
RF Generator Residual FM Performance Test 4
table 7-4, "RF Generator Residual FM Test 4
208. The residual FM of the RF generator is measured directly by
figure 6-7 and
INPUT
POWER
DO NOT apply RF
when in standby
MODULATION OUTPUT
INPUT 50Ω
Performance Tests
figure 6-8 on page 156. The first setup is
CALL CONTROL UTILITIES
Answer Print Printer
Call/ End/ Register Tests Config
Page Release
CDMA SCREENS ANALOG SCREENS
USER
Cell config Spectrum SMS
Call Gen Authen- Call
K1'
control control tication control
K1
MS report MS FER
RX test TX test TX RX test
range
K2'
K2
DATA FUNCTIONS
K3'
Ref set Meter Average
K3 Increment Increment Increment 7
10 set x 10
Low limit High limit
Assign
K4 4
Release
K5
1
0
IBASIC
reset
Yes
Shift Cancel
On/Off
RF IN/OUT DUPLEX OUT ANTENNA IN VOLUME AUDIO OUT
Max power 2.5W
Max power 60 mW Max 12V peak
DUPLEX OUT
I/O config Help
Previous Message Preset
Hold
Meas
reset
Address
Duplex Spectrun Local
analyzer
Save
TX test AF Recall
analyzer
DATA
8 9 Enter
5 6 Ghz
dBm
dB
MHz
2 3
V
%
. +/- kHz
mV
s
mW
No % Hz
Ratio dB µV
W ms
AUDIO IN
High
Low
Max
42V peak
155