User Manual

HERMOS AG
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LFM 4x Reader Rev1.4
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Customer manual
LFM 4x Reader
RFID
WE GENERATE SOLUTIONS
10.4.14 J – RF module Queries the vote
The command „J“ can be used to query the tuning values of the individual antennas. Each
antenna port has its own tuning value.
Host  Device
CMD
Reader-ID
J
1 Byte
Device  Host
CMD
Reader-ID
Tuning value
j
1 Byte
2 Bytes
The tuning value is a set value for the optimal antenna tuning.
For optimum read and write ranges, the value is automatically determined by the reader
(I-message). The value is measured in 16 steps (0-F).