User's Manual

Troubleshooting
Should you experience difficulty with iSCAN, please refer to the following troubleshooting
guide for assistance. If you are unable to restore iSCAN to normal operation after following
these steps, contact your nearest RadioShack store for assistance.
The scanner does not function
. Ensure that iSCAN is equipped with fresh batteries. If powering iSCAN from external
power, make certain that the external power plug is fully inserted into iSCAN’s PC/IF-DC
POWER jack.
Low battery warning beeps and message on LCD display
. Recharge rechargeable batteries or replace alkaline batteries.
Poor or no reception
. Weak signals from distant stations. Reposition for best reception.
. Attenuator in use on weak signals. Check performance with and without attenuator
activated, use setting with best reception.
. Strong signal overload from nearby transmitter. Check performance with and without
attenuator activated, use setting with best reception.
. Loose or defective antenna. Inspect antenna and connectors and correct any problems
found.
. Incorrect modulation mode selected. Ensure that proper modulation mode is selected for
the type of system being monitored. If necessary, use iSCAN PC Application to change
modulation mode.
. Attenuator is in use on weak signals. Check performance with and without attenuator
activated, and use the setting that results in better reception.
“Scanning not available” shown in display
. The batteries are low and all functions that write data to the SD Card (including scanning)
are disabled to prevent data corruption. Recharge or replace the batteries.
The scanner is on but does not scan
. The squelch may not be adjusted correctly. Turn the squelch control counterclockwise.