TransCore 05531 User Manual
Encompass 4/4800 Multiprotocol Reader System Guide
7-38
643NN Select ATA Operating Range (Distance)
Command #643NN selects the read range where NN is a hexadecimal value from 00
to 1F; the range increases with increasing NN value. The range can be adjusted for 32
discrete values where 00 is the shortest range and 1F is the longest range. The default
range value is 1F.
to 1F; the range increases with increasing NN value. The range can be adjusted for 32
discrete values where 00 is the shortest range and 1F is the longest range. The default
range value is 1F.
Reader response:
Done
644NN Set RF Attenuation**
Command #644NN sets the attenuation control for the output RF power where NN is
a hexidecimal value from 00 to 0A. Settings for attenuation are 1.0 dB increments
over a range of 10 dB of attenuation from the maximum power setting of two watts at
0-dB attenuation to a minimum power level of 200 milliwatts at 10-dB attenuation.
a hexidecimal value from 00 to 0A. Settings for attenuation are 1.0 dB increments
over a range of 10 dB of attenuation from the maximum power setting of two watts at
0-dB attenuation to a minimum power level of 200 milliwatts at 10-dB attenuation.
The Set RF Attenuation command NN variables and corresponding attenuation set-
tings are shown in
tings are shown in
.
Reader response:
Done
Table 7-15 RF Attenuation Command Variables
Variable (NN)
Attenuation
Setting (dB)
00
0 (factory default)
01
1
02
2
03
3
04
4
05
5
06
6
07
7
08
8
09
9
0A
10