TransCore 2611SS Manuel D’Utilisation
Troubleshooting the Installation
6-5
Figure 6-1 RF Footprint Extends Beyond Lane Boundaries (Bistatic
Configuration Shown)
Diagnosing Cross-Lane Interference
To diagnose this type of interference, first set the RF power in all lanes to a moderate
setting (6 to 9 dB) for both downlink and uplink antennas. Follow the procedures out-
lined in “Why You Need to Tune a Lane” on page 5-3. Next, tune a single lane by fol-
lowing the lane tuning procedure outlined in that section. When tuning a lane be sure
to use a tag and vehicle that have been used consistently at your site.
setting (6 to 9 dB) for both downlink and uplink antennas. Follow the procedures out-
lined in “Why You Need to Tune a Lane” on page 5-3. Next, tune a single lane by fol-
lowing the lane tuning procedure outlined in that section. When tuning a lane be sure
to use a tag and vehicle that have been used consistently at your site.
Once the lane has been tuned and you determine that it is working satisfactorily, per-
form lane tuning procedures in the adjacent lane. Continue for each lane in the toll
plaza.
form lane tuning procedures in the adjacent lane. Continue for each lane in the toll
plaza.
If each adjacent lane tuning causes the previously tuned lane to start performing
poorly (i.e., spotty read zone or areas of no reads), cross-lane interference is indicated.
poorly (i.e., spotty read zone or areas of no reads), cross-lane interference is indicated.
Remedying Cross-Lane Interference
There are several methods that can be used to remedy cross-lane interference. These
are accomplished by software or hardware changes, or a combination of both. A rem-
edy at one site may not be appropriate at another site, so iterative methods of correct-
ing this interference are necessary.
are accomplished by software or hardware changes, or a combination of both. A rem-
edy at one site may not be appropriate at another site, so iterative methods of correct-
ing this interference are necessary.