Note: The authorized continuous wave (CW) frequency band for the MPRX in the U.S. is 902.25 to
903.75 MHz and 910.00 to 921.50 MHz and the authorized modulated frequency band for the MPRX
in the U.S. is 911.75 to 919.75 MHz. The RF for each MPRX at the site must be set according to the
frequency specified in the FCC site license. Only trained, authorized installation and maintenance
personnel are permitted by FCC to set the RF.
Refer to “Table 27 Command Sequence to Verify Communications” on page 6–89 or “Table 40 RF
Frequency Commands Non- FCC” on page D–133 for a list of commands.
Reader response: #Done
65 Reset Power Fail Bit
#65 resets the power fail bit to 0. The bit changes from 0 to 1 when power is restored to
the reader. Upon reader power-up, the host transmits either Command #65 or #63
Reset Reader to properly initialize this bit. The current state of the power fail bit may be
displayed. Refer to “520 Display Power Fail Bit” on page 5–67 for more information.
Reader response: #Done
66F Load Default Operating Parameters
#66F loads all the factory default operating parameters except RF operating frequency. Refer
to “Table 26 MPRX Default Configuration Settings” on page 6–86 for a listing of the
defaults.
Reader response:
#Done
All parameters loaded OK
#Error
A parameter load failed
690N Select Presence Without Tag Report Option
#690N enables or disables the presence without tag report option. If the presence without tag
reporting option is enabled using Command #6901, input reports are transmitted when
a tag presence is detected without the subsequent acquisition of a valid tag. The value
for N specifies the reports as shown in Table 22.
Table 22 Presence Without Tag Report Commands
Command Report Option
6900
Disable presence without tag reports (factory default)
6901
Enable presence without tag reports
Note: These commands only have an eect when the reader is not in MPRX mode.
Reader response: #Done
Refer to “Basic Protocol and ECP Format” on page 4–44 for message format information.
MPRX User Guide
TransCore Proprietary
5–78