User's Manual

SECTION 4: FACTORY TEST PROCEDURE
M64450G25-FCCRpt.doc Page 30
Amplitude: Varies AFGen1 Freq: 1.000 kHz AFGen2 Freq: 1.000 kHz
Atten Hold: Off AFGen to: FM 5 KHz AFGen2 to: Off
Output Port: RF Out Ext Load R: 600 ohm
Filter 1: 300 Hz HPF
Filter 2: 3 kHz LPF
Step 2 Test Receiver 1, as follows:
- Connect an RF cable from the Service Monitor’s “RF Out” port to the antenna
port of Receiver 1
- At the Service Monitor, reduce the “Amplitude” until the SINAD meter indicates
12 dB SINAD

The amplitude must be -115 dBm or less. If necessary, adjust CV12 slightly
to improve 12 dB SINAD reading.
Step 3 Test Receiver 2, as follows:
- Connect an RF cable from the Service Monitor’s “RF Out” port to the antenna
port of Receiver 2
- At the Service Monitor, reduce the “amplitude” until the SINAD meter indicates 12
dB SINAD

The amplitude must be -115 dBm or less. If necessary, adjust CV9 slightly to
improve 12 dB SINAD reading.
Receivers Minimum Distortion
Perform the following steps to adjust the receivers for minimum distortion:
Step 1 Set the Service Monitor, as follows:
- Select the “RX” function
- Set the “RF Gen Freq” to the receive frequency of the mobile radio under test
- Set the Service Monitor to display distortion readings
- Set other values as follows:
Amplitude: -80 dBm AFGen1 Freq: 1.000 kHz AFGen2 Freq: 1.000 kHz
Atten Hold: Off AFGen to: FM 5 KHz AFGen2 to: Off
Output Port: RF Out Ext Load R: 600 ohm
Filter 1: 300 Hz HPF
Filter 2: 3 kHz LPF
Step 2 Adjust Receiver 1, as follows:
- Connect an RF cable from the Service Monitor’s “RF Out” port to the antenna
port of Receiver 1
- Observe the Service Monitor while adjusting CV4 for minimum distortion –
Distortion must read 3.0% or less
- Record the distortion on the Tune and Align Data Sheet