ThingMagic Mercury API v1.23.0 - Manual (Page 70)

Configuring Readers
70 Level 2 API
(NOTE: the settlingTime is associated with the TX port, the paired RX port is not
relevant), and the second element is the settling time in microseconds. Ports not listed
are assigned a settling time of zero.
/reader/antenna/txRxMap
Type: array of array of 3 integers
Default value: all the antennas in /reader/antenna/portList in monostatic mode. i.e. for
the M5e = [[1,1,1],[2,2,2]]
Writable: yes
Products: M5e (and derived products), M6e
A configurable list that associates transmit ports with receive ports (and thus selects
monostatic mode or bistatic mode for each configuration) and assigns a Antenna Usage
number to each. Each list element is a length three array, [ [ A, B, C], ...], where:

A is the virtual antenna number

B is the transmit (TX) physical port number

C is the receive (RX) physical port number.
The reader will restrict which combinations are valid.
Example: Using an M5e configured for both monostatic and bistatic operation, with the
bistatic configuration (TX=1, RX=2) assigned virtual port 1 and the monostatic
configuration (TX=1, RX=1) assigned virtual port 2:
r.paramSet("/reader/antenna/txRxMap", new int[][]{new int[]{1,1,2},
new int[]{2,1,1}});
/reader/gen2
See the Performance Tuning sections: How UHF RFID Works (Gen2) and Optimizing Gen2
settings for details on how the following settings related to reader performance and how to
select the best settings for your usecase.