User's Manual

SECTION 4: FACTORY TEST PROCEDURE
M64450G25-FCCRpt.doc Page 36
Transmitter Power
Step 1 Set the Service Monitor to measure the transmitter frequency of the base station.
Step 2 Set the Service Monitor filters to “<20 Hz HPF” and “15 kHz HPF”.
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Ensure the Service Monitor can handle the full power transmission of the
base station otherwise attach an attenuator to the output of the base station
transmitter antenna port before transmitting into the Service Monitor.
Step 3 Connect a coaxial cable from the output of the base station (or connected
attenuator) to the Service Monitor’s RF In port.
Step 4 In IPMessage, type the command “X = 1400,20”. The base station will transmit
20 packets of 1400 bytes each. This continuous transmission will last
approximately 10 seconds.
Step 5 On the Service Monitor note the transmitter power at the beginning of the
transmission and observe whether the transmitter power drops over the course of
the transmission.
Step 6 Transmitter Power Output must begin at a level between 20 and 35 watts and
must not drop by more then 5 watts over the course of the “X = 1400,20”
command.
Step 7 To change the transmitter output power use “TXpower” command in IPMessage.
Step 8 Record the Transmit Power on the Tune and Align Data Sheet.
Transmitter Data Quality and Message Success Rate
Step 1 Connect a base station to an IPNC via SLIP cable or Ethernet.
Step 2 Connect the mobile radio under test in the test set up.
Step 3 Allow the mobile radio to connect to the base station.
Step 4 Run IPLinkView or ping the mobile from the IPNC.
Step 5 Set the downlink and uplink RSSI to -90 +/- 2dBm.
Step 6 Observe the data quality reported by the base station on the uplink.
Step 7 Adjust RV1 in the mobile for the maximum data quality on the uplink.
Step 8 Data Quality must average 220 or better over the course of 50 consecutive
packets or pings.
Step 9 Calculate the Message Success Rate over the 50 Consecutive packets. The
MSR shall be greater that 94%.
Step 10 Record the Data Quality and the MSR on the Tune and Align Data Sheet. If
MSR does not meet 94% proceed with Hardware Time Verification for trouble
shooting.