Design Guide

Regulatory Support
A DIVISION OF TRIMBLE
Functionality of the ThingMagic Nano 73
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.
The 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 is allowed to enter any channel
frequency, with kHz granularity, as long as it is between the upper and lower channel
limits for that region. The actual frequency used by the module is that of the closest
permitted channel that matches the specified value, which is based on the lower channel
limit plus an integer multiple of the quantization value. Each region has a quantization
value based on regulatory specifications. The following table provides the channel setting
limits for each region setting.
CAUTION!
!!
Use these commands with extreme caution.
It is possible to change the moduleʼs com-
pliance with the regional channel settings.