User Manual

ThingMagic Nano User Guide 35
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Support for Set/Get Quantization Value and Minimum Frequency
The Open region as defined in previous releases was intended for testing only. To permit the most flexibility
in defining channels, it allowed a minimum channel step size (quantization) of 25 kHz. We do not
recommend the use of the Open region to support channel plans, as this is not easily accommodated by
changing the hop table of an existing region because the small step size results in lower channel frequency
stability. (This frequency not only defines the minimum step size that can be set, but also represents how
often the channel is nudged back to its desired value, with more frequent nudges creating a more stable
channel.)
To allow the Open region to be used more flexibly, we now permit the setting of the quantization value. It
may be any value between 15 kHz and 6 MHz if it divides evenly into 6 MHz (6000 kHz). If not, an error will
be returned (error code number 105).
To permit the largest quantization value possible, we also allow setting the minimum frequency value for
the Open region. (Smaller quantization values are often driven by the rule that all channels must be an
integral multiple of the quantization value above the minimum frequency value.)
Only the Open region supports changing of the quantization value. We do not recommend quantization
values less than 100 kHz be used, except for laboratory testing, to maintain a high degree of channel
frequency stability and prevent interference with other readers or RF services.
Refer to Mercury API v1.29.4 release notes to activate this functionality.
Protocol Support
Unlike the M6e and Micro modules, ThingMagic Nano does not have the ability to support tag protocols
other then EPCglobal Gen2 (ISO 18000-6C).
ISO 18000-6C (Gen2)
Review the latest firmware release notes for updated features and capabilities.