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N:\mkt\MANUALS\HP8924C\APPMOD\BOOK\chapters\amrcvrt.fb
Chapter 3, CDMA Receiver Tests
Measuring Demodulation of Forward Traffic Channel with AWGN
3. Set the test parameter AWGN (I
oc
) .
HP-IB Syntax
"CDMA:AWGN:STAT ON" !turns the Test Set’s AWGN generator on.
"CDMA:AWGN -74" !sets AWGN to -74 dBM/BW.
Manual Operation:
1. Position the cursor at the AWGN field.
2. Press the ON/OFF key.
3. Adjust the value if necessary.
AWGN (I
oc
) determines the signal-to-noise ratio Î
or
/I
oc
. The Sector A Power field sets Î
or
.
To obtain a ratio of -1, set AWGN 1 dB higher in power than Sector A Power.
I
oc
is defined as the power spectral density of a band-limited white noise source (simulating interference from
other cells) as measured at the mobile station’s antenna connector.
To Screen
CDMA CELLULAR MOBILE RECEIVER TEST
FER
Test Status
Display
Interim
Results
Yes/No
Max Frames
On/Off
Sector A
Power
-75.0
dBm/BW
%
Connected
Svc Opt 2
Testing
Passed
Failed
Max Frames
Errors Counted
Traffic
Data Mode
Svc Opt 2
Data Rate
Full
Eb/Nt
CDMA
CALL CNTL
Analog
RX TEST
Cnfig
PRNT CNFG
Frames Counted
Meas Cntl
Single/Cont
Arm
Disarm
Confidence
95.00
FER Specs
3.00
----
Traffic
-16.3
dB
AWGN
-74.0
dbm/BW
%
%