Test Procedures
Motorola Confidential Proprietary
46
CDMA T720
RX Sensitivity Test (SINAD)
Communications Analyzer
Setup
:
ï Select RX button from the Analog
Screen Control panel
ï SetRX frequencyto 880.05MHz
ï SetAmplitude to -116 dBm
ï SetAF gen1to 1kHzfrequency at
8 kHz deviation, using FM modu-
lation (PLEASE NOTE: this is for
AMPS only; NAMPS uses much
lower deviation)
ï SetAF Filter 1 set toC message
filtering
ï SetAF Filter 2to 15 kHz
Test Mode Commands:
Sinad measured on the communications
analyzer must be morethan 12dB.
Duplex SINAD can be measured with the same
setting “SET_RF_PWR to lv 2 and turn
“CARRIER” on using RadioComm, which turns
on the transmitter at power step 2.
RX TEST
SINAD dB VAC Le vel
8 22 .25 2 4
0.6336
RF Ge n Freq
MHz
8 79.9 9000 0
Amp litu de
-11 6.0
d Bm
-1 16.0
RF Out
Atten H old
Outp ut Port
RF Out /Dupl
On/Off
AF Gen 1 Freq
1 . 00 00
kHz
AF Gen 1 To
FM
kHz
8 .00
AF Ge n2 Freq
1 . 0 000
kHz
AF Gen 2 To
FM
OFF
Filte r 1
C m essage
Filter 2
15 kHz LPF
Ext Load R
8 . 0 0
To Sc ree n
CDMA
Analog
Config
CALLCNTL
SMS
AUTHEN
RX TES T
TESTS
Using RadioComm software
- Suspend Radio
- Load synthesizer to channel 350
- Unmute receiver audio path
- Turn on compander
- Set volume control to level 4
- Set RX audio path to Ext. path
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