Agilent Technologies E8285A Manual page 156

Performance Tests
RF Generator Residual FM Performance Test 4
Figure 6-8 Setup for Measurements to 2 GHz Using a Microwave Converter
Audio Analyzer
Measuring Receiver
EXT LO
INPUT
Signal Generator LO
RF
OUTPUT
Procedure
NOTE Test Sets with firmware revision A.04.5X and above operate only at RF
frequencies from 800 to 1000 MHz and 1700 to 2000 MHz. A text only error
message "Input value out of range" , will be displayed if invalid
frequencies are set.
Steps 1 to 5 in the following procedure apply to both setups (shown in
and
1. On the signal generator (to be used as the measuring receiver's LO):
2. On the measuring receiver:
3. On the audio analyzer:
156
INPUT
MODULATION OUTPUT
INPUT 50Ω
IF OUTPUT
Microwave
Converter
figure 6-8 on page 156).
a. Set the frequency to 11.5 MHz.
b. Set the level to 0 dBm.
a. Reset the instrument.
b. Set the IF to 1.5 MHz (3.2 Special).
c. Set the high-pass filter to 50 Hz.
d. Set the low-pass filter to 15 kHz.
e. Set the measurement mode to FM.
f. If the instrument has an external LO switch, enable the external LO mode
(23.1 Special).
g. If the microwave converter is being used, set the frequency offset mode to
exit the mode (27.0 Special).
a. Reset the instrument.
CALL CONTROL
Answer
Call/ End/ Register
Page Release
USER CDMA SCREENS
Cell config Spectrum
Call Gen
K1'
control control
K1
MS report MS FER
RX test TX test
K2'
K2
DATA FUNCTIONS
K3'
Ref set Meter
K3 Increment Increment
10 set
Assign Low limit
K4
Release
K5
IBASIC
reset
Shift Cancel
POWER RF IN/OUT DUPLEX OUT ANTENNA IN VOLUME
DO NOT apply RF Max power 2.5W
Max power 60 mW
when in standby
DUPLEX OUT
RF
Signal Generator
INPUT
LO RF
INPUT OUTPUT
S:\agilent\e8285\ALR\Book\chapters\perf_test.fm
UTILITIES
Print Printer I/O config Help
Tests Config Previous Message Preset
Hold
Meas
ANALOG SCREENS reset
SMS Address
Authen- Call Duplex Spectrun Local
tication control analyzer
Save
TX RX test TX test AF Recall
range analyzer
DATA
Average
Increment 7 8 9 Enter
x 10
High limit
Ghz
4 5 6
dBm
dB
1 2 3 MHz
V
%
0 . +/- kHz
mV
s
mW
Yes No % Hz
On/Off Ratio dB µV
W ms
AUDIO OUT AUDIO IN
High Low
Max 12V peak Max
42V peak
figure 6-7