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INfinity 510 Protocol Reference Guide - Sirit

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Chapter 15 - Modem Namespace<br />

modem.protocol.supertag.control.tx_atten<br />

This specifies the transmit attenuation applied during Supertag<br />

transmissions. The value is in ddBm so a value of 200 would be an<br />

attenuation of 20 dBm.<br />

Type<br />

Permissions<br />

Data Type<br />

var<br />

guest=r,admin=rw<br />

int<br />

Default 0<br />

Min 0<br />

Max 300<br />

modem.protocol.supertag.physical.max_demod_dist<br />

This variable sets an upper limit on the average demodulator slicer error<br />

before the receiver stops demodulating due to tag collision or excessive<br />

noise. Decreasing this value reduces the likelihood of "ghost tags" due to<br />

erroneous demodulation & CRC match, but may also decrease read range.<br />

Increasing the value has the opposite effect.<br />

Type<br />

Permissions<br />

Data Type<br />

var<br />

guest=-,admin=rw<br />

int<br />

Default 4000<br />

Min 1000<br />

Max 1000000<br />

modem.protocol.supertag.physical.return_link_freq<br />

This variable sets the return link frequency for tag to reader communication.<br />

Type<br />

Permissions<br />

Data Type<br />

Default<br />

Enum<br />

var<br />

guest=r,admin=rw<br />

enum<br />

LF64<br />

LF64 LF256<br />

<strong>INfinity</strong> <strong>510</strong> <strong>Protocol</strong> <strong>Reference</strong> <strong>Guide</strong> 205

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