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Reader Startup Tool
38
ID
entity
6204
User’s Guide
5.6.5.
Power Ramp Tool
The Power Ramp Tool determines the minimum power to activate a tag and
can help determine tag quality. This activation power level can help
determine the read range at various attenuation levels and, for AVI
applications, can help determine the "read-zone" or an antenna pattern.
The tool starts by configuring the reader to start transmitting at a high
attenuation level (usually maximum allowed for reader) and decrements the
level until it observes a response from the tag. The transmitter is turned off
and the minimum value to activate the tag for a given antenna and distance
is reported.
The Power Ramp controls include:
h
Increment Rate (ms)
– Time tool stays at a particular power level
before incrementing to the next power level.
h
Initial Attenuation Level (dBm)
– Starting attenuation level.
h
Attenuation Decrement (dBm)
– Step-size for attenuation
decrement.
h
Antennas
section allows you to select which antenna(s) to test with.
h
Filter
section allows you to apply a filter to only look for a particular tag.
