Agilent Technologies E8285A Manual page 195

CDMA Generator Modulation Accuracy Performance Test 27
2. On the Vector Signal Analyzer:
a. Press the
Frequency
b. Set center frequency to 881.52 MHz.
c. Set the span to 2.6 MHz.
d. Press the
Instrument Mode
e. Press the
Digital Demodulation
f. Press the
Demodulation Setup
g. Press the
Demodulation Format
h. Press the
Standard Setup
i. Press the
CDMA Base
j. Press the key.
D
k. Read the Rho measurement or:
3. Use the following equation to calculate rho.
ρ
ρ
EVM = Error Vector Magnitude (% rms)
4. Compare and record the rho error calculated in
Modulation Accuracy Test 27 Record" on page 245
5. Set the CDMA GEN frequency on the Test Set and change the center frequency
on the Vector Signal Analyzer to the 1956.25 MHz.
6. Calculate rho (using the above equation), and record the result (rho) in
7-28, "CDMA Generator Modulation Accuracy Test 27 Record" on page
key.
key
(F4) key
(F5) key
(F1) key
(F7) key.
(F7) key.
1
= ------------------------ -
2
1 + EVM
= rho
Performance Tests
table 7-28, "CDMA Generator
table
245.
195