Radio Shack 20-521 Scanner User Manual


 
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Special Features .................................................... 34
Delay ................................................................ 34
Turning Channel-Storage Banks On and Off ... 34
Locking Out Channels ...................................... 35
Priority .............................................................. 35
Using the Keylock ............................................ 37
Using the Display Backlight .............................. 37
Changing Search Speeds ................................ 37
Turning the Key Tone Off/On ............................ 38
Turning the Battery Save Function Off/On ....... 38
Skipping Data Signals ...................................... 39
Trunk Tracking ....................................................... 40
Types of Trunking Systems .............................. 40
Setting the Scanner to the
Trunk Tracking Mode ........................................ 41
Setting Squelch for the Trunk Tracking Mode .. 42
Storing Trunked Frequencies ........................... 42
Scanning a Trunked Bank ................................ 44
Monitoring an Active ID ............................. 45
Temporarily Storing an ID into the
Monitor ID Memory ................................... 45
Locking Out IDs ........................................ 46
Unlocking a Single ID ................................ 46
Unlocking All IDs ....................................... 46
Using Trunk Tracking Scan Delay ............. 47
Monitoring IDs ........................................... 47
Channel Activity Bars ....................................... 48
Scan Lists ......................................................... 49
Manually Storing IDs into Scan Lists ........ 49
Moving IDs to Scan Lists .......................... 50
Deleting a Stored ID .................................. 50
Scanning the Scan Lists ................................... 51
Scanning Type I and Hybrid Trunked
Systems ............................................................ 51
Selecting a Preset Fleet Map .................... 55
Programming a Fleet Map ........................ 56
Programming a Hybrid System ................. 57
A General Guide to Scanning ............................... 58
Guide to Frequencies ....................................... 58
National Weather Frequencies .................. 58
Canadian Weather Frequencies ............... 58
Birdie Frequencies .................................... 58
Guide to the Action Bands ............................... 59
Typical Band Usage .................................. 59
Primary Usage .......................................... 59
Band Allocation ................................................ 60