User Manual
ThingMagic Nano User Guide 33
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Support for Additional Asian regions
NOTES: (1) Maximum Dwell Time 0.4 sec for all these regions (same as North American region).
(2) Max RF power limit is that given in table or whatever the module is capable of, whichever
is lower.
(3) Any channel frequency can be requested that is between the upper and lower bounds, but
the module will silently round down to the nearest channel that is the lower bound plus an
integer multiple of quantization steps.
The new Asian regions have been added to Reader. Refer Mercury API v1.29.4 release notes for more
information.
Frequency Setting
The modules have a PLL synthesizer that sets the modulation frequency to the desired value. Whenever
the frequency is changed, the module must first power off the modulation, change the frequency, and then
turn on the modulation again. Since this can take 7 to 10 milliseconds, all passive tags will enter the power-
down state during a frequency hop, which affects their behavior, per the EPCglobal Gen2 specification.
ThingMagic Nano supports commands that allow channels to be removed from the hop table and additional
channels to be defined (within limits).
Frequency Units
All frequencies in the ThingMagic Nano are expressed in kHz using unsigned 32-bit integers. For instance,
a carrier frequency of 918 MHz is expressed as “918000” kHz.
Each region has a defined lower channel limit, minimum separation between channels (“quantization”) and
an upper channel limit. The user can enter any channel frequency, with kHz granularity, if it is between the
upper and lower channel limits for that region. The actual frequency used by the module is that of the
Additional Asian Regions Supported
Region
Region
Number
Region
Number
Low
Channel
Boundary
High Channel
Boundary
Min. Step Size
(Quantization)
Malaysia MY 0x10 919 MHz 923 MHz 250 kHz
Indonesia ID 0x11 923 MHz 925 MHz 125 kHz
Philippines PH 0x12 918 MHz 920 MHz 250 kHz
Taiwan TW 0x13 922 MHz 928 MHz 250 KHz
Macao MO 0x14 920 MHz 925 MHz 250 kHz
Russia RU 0x15 866 MHz 868 MHz 200 kHz
Singapore SG 0x16 920 MHz 925 MHz 100 kHz
Caution: Use these commands with extreme caution. It is possible to change the module’s
compliance with the regional channel settings.