SAMSys MP9320, Руководство пользователя

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Reader Configuration
53
Warning
Users that operate UHF readers in Polled Mode with RF always
On (“Mode 4” with the lowest bits of the GCW register set to 4
Hex) should disable transmit power drift compensation. To
disable transmit power drift compensation, enter the following
one-time CHUMP command:
}cw,d:tpc,b:20000,f:1! (for ETSI users)
}cw,d:tpc,b:30000,f:1! (for FCC users)
If you have any questions about the use of any of the MP9320
registers or RF ports, consult your reader manuals or call
SAMSys customer support at 1-919-281-1541 (Durham, North
Carolina, USA).
Warning
The SAMSys MP9320 UHF Reader uses internal registers to
provide a high degree of flexibility in setting operational
parameters. The use of these registers is described in the
MP9320 User’s Guide, the MP9320 Field Installation Guide, and
the Comprehensive Heuristic Unified Messaging Protocol
(CHUMP) Reference Guide. However, improper setting of these
registers can result in reader inoperability or permanent damage.
In particular, the TPC, TP0, TP1, TP2 and TP3 registers control
the transmit power of the reader. The user should not modify
these registers unless specifically directed by SAMSys
personnel. Trained, professional installers should only modify
them as part of the transmit calibration procedure described in
the Field Installation Guide.