4-34
888-2685-001
12/24/07
WARNING: Disconnect primary power prior to servicing.
Ranger Commissioning Manual
Section 4 RF Testing
4.2.16.4 Modulation Error Measurement Procedure
Step
Procedure Description
Expected
Observation
1
Using the controller software,
provision the following set of
parameters:
P = {National Length = 288, Local
Length = 0, PPC Symbols = 14,
Frame Length = 292, WID = 5 and
LID 6, Active TS = TS1, WPID =
LPID = 16, Network Geographic
Delay = 0, Transmitter Delay = 13
microseconds}, and let the exciter be
initialized. Note: WID & LID values
must match the MER tool settings.
Provide the exciter RF output to the
phone over a cable. Precorrection
settings should be set to Non-Linear
Precorrection = Adaptive, Linear
Precorrection = Adaptive
RF Spectrum output
should be clean, and
the phone should
decode the signal
2
Set FLO FPGA, SFN mode = Off. Do
not provide any ASI input to the
transmitter
The RF should still
be present
3
Collect 10 sets of data after the
bandpass filter using the FSQ test
receiver, and compute the MER as
per Appendix A
The MER should be
at least 33dB for all
active subcarriers
4
Using Katts, transmit test pattern
MER_p2.katts (provided by QC). Let
the PID setting on the transmitter
remain 16. Collect 10 sets of data
after the bandpass filter using the
FSQ test receiver, and compute the
MER.
The MER should be
at least 33dB for all
active subcarriers
5
Using Katts, transmit test pattern
MER_p3.katts (provided by QC). Let the
PID setting on the transmitter remain 16.
Collect 10 sets of data after the bandpass
filter using the FSQ test receiver, and
compute the MER.
The MER should be at
least 33dB for all active
subcarriers
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