User's Guide

Guia de usuário Edge-30R+ Autoid / Edge-30R-N+ Autoid

Rev. 13

27 de 92

7.3 Reading problems

When there are adjacent lanes near each other, tag readings may occur on unwanted tracks or

locations near the reader's installation point. Below are some examples of multi-lane installations.

To minimize the occurrence of unwanted reads as much as possible, some actions can be performed:

1. Filter of unwanted side/adjacent readings. You must enable the "Filter by tag signal level" on the

Read page or via the Ascii command "FTRSSI";

1. What is the value of the cut-off RSSI?

The best way to determine the cutoff value of the trail ing tag sign (RSSI) is by reading (on

the side track) that informs rssi at the installation site by placing the keyword "RSSI" on the

Data String on the Communications page or via the Ascii command "STRDT". To view the

readings via TCP/IP you can use the "Putty Terminal Software". It is important to log

readings of various types of cars to find a great cut value.

1. Adjusting the reading power combined with the reading filter by rssi. In many cases the reading

power can be decreased without compromising tag readings on the correct track. Decreasing

reading power helps a lot in eliminating unwanted side readings.

2. Mechanical adjustment of the reader (bring the tag/vehicle reader closer together) to be able to

decrease the reading power.

NOTE:

For the actions mentioned above, the tags must be properly installed in the vehicle

(Glass, headlight, etc.), if the tags are shown in the hand or improperly the actions

may not result in improved reading performance.