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Pro-106

From The RadioReference Wiki

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The Pro-106 was manufactured for Radio Shack by GRE America Inc.

The pro-106 is a Digital Trunk Tracking scanner has the ability to track APCO 25 digital trunking systems, in addition to following Motorola type I/II systems, LTR and EDACS trunking systems. It is functionally identical to the PSR-500 and the later Whistler WS1040. It uses the same software and cables. Firmware updates are NOT compatible between this radio, the WS1040 and the GRE PSR-500 though.

Note: Testing has shown that the frequency range 796.9975 to 805.9975 MHz is blocked on this scanner.

  • Can be updated to support Rebanding? YES
    • See Sections 7.1 and 7.2 of the Rebanding article for the firmware and software links

General Specifications


Frequency Coverage
Frequency (MHz) Step Size Value Mode (Default)
25-27.405 10 kHz AM
27.41-29.7 5 kHZ AM
29.71-49.83 10 kHz FM
49.835-54 5 kHz FM
108-136.9916 8.33 kHz AM
137-137.995 5 kHz FM
138-143.9875 12.5 kHz FM
144-147.995 5 kHz FM
148-150.7875 12.5 kHz FM
150.8-150.845 5 kHz FM
150.8525-150.845 5 kHz FM
150.8525-154.4975 7.5 kHz FM
154.515-154.64 5 kHz FM
154.65-156.255 7.5 kHz FM
156.275-157.45 25 kHz FM
154.47-161.5725 7.5 kHz FM
161.6-161.975 5 kHz FM
162-174 12.5 FM
216.0025-219.9975 5 kHz FM
220-224.995 5 kHz FM
225.000-379.975 25 kHz AM
380-419.9875 12.5 kHz FM
420-450 5 kHz FM
450.00625-469.99375 6.25 kHz FM
470-512 6.25 kHz FM
764-.796.996875 1,2 3.125 kHz FM
806-823.9875 12.5 kHz FM
849-868.9875 12.5 kHz FM
894-901.9875 12.5 kHz FM
902-928 5 kHz FM
928.0125-939.9875 12.5 kHz FM
940-960 6.25 kHz FM
1240-1300 6.25 kHz FM
137.0000 − 174.0000 MHz 5 kHz FM(Canada)
380.00000 − 512.00000 MHz 12.5 kHz FM (Canada)


  • Object oriented memory management. See the Object Oriented Scanning Described article for more information
  • 22 Scan Lists - 20 lists to program, use, and select like traditional banks allowing you to arrange, group and scan objects according to your preference with an additional 'Favorites' list to create a scan list tailored to your favorite objects and a 'Skywarn' list
  • Multi-Site Trunking - allows you to scan systems covering a very large geographic area that use multiple antenna sites and operate on different frequencies but use the same Talk Group IDs
  • Multi-Site option to look for the site with the best received CC decode rate. (Not the same as RSSI on the Motorola rigs, but similar in operation)
  • 21 Virtual Scanner Memories; one copy of working memory can hold up to 1800 objects, meaning any combination of talkgroups, conventional channels, and trunking systems. Each V-Scanner folder holds one copy of working memory. So, 21 * 1800 = about 37,800 objects altogether can be stored in the V-Scanner storage system
  • 700MHz and 380MHz Trunk Scanning
  • Object programmable LED; eight factory default colors to any color / brilliance you want by having direct access to the R-G-B drive values (including flash) to assign to talkgroups, frequencies, agencies, etc.
    • LATCH option; the color of the last received object stays on until reset
  • Audible Alarms - programmable audible alerts can be configured to sound when certain scannable objects are active
  • Hit Counters - keep track of how many transmissions are received for each object type
  • Signal Stalker II Near field frequency capture
  • LTR Home Repeater AutoMove - enter the LTR system frequencies in any order, and the scanner will automatically move the frequencies to the proper home repeater slots as transmissions are received on the system
  • Object Duplication- useful when entering multiple ID objects that are in the same trunked radio system, or multiple conventional objects that have similar parameters or tag names
  • FlexStep - allows you to enter a frequency in any 1.25 kHz step
  • TCXO for frequency stability
  • Adaptive digital tracking (ADT)
  • Digital signal processing (DSP)
  • Triple conversion
  • Digital AGC
  • CTCSS/DCS abilities
  • Network Access Code can be programmed to only break squelch when receiving the correct NAC in a conventional P25 system
  • Pre-programmed systems for most major metropolitan areas
  • 7 Service Search Bands - Marine, CB, FRS/GMRS/MURS, Police/Fire, Air, Ham, and Railroad and a limit search
  • Zeromatic search tuning
  • Built in discriminator data output in simple ASCII output using the PC/IF port
  • Full duplex support and USB connection using the Whistler programming cable (Not included)
  • Scan rate 55 CPS
  • Search speed 90 CPS
  • Direct Tune mode
  • Default Option keys; return to default setting for any menu
  • 16-character alpha-tagging with text entry can show ID code or service name
  • Temporary/Permanent Lockouts - lets you temporary or permanently lockout any programmed object
  • Scan/Search/Trunking Delay - variable delay (0 to 25 seconds) before searching for another object so you can hear more replies that are made on the same object
  • UNSQUELCH Delay; Delay settings before the radio unmutes audio to speaker
  • Motorola Control Channel Only trunking
  • Private Calls and RadioID alpha display
  • Easy-to-read back lit control and display with back lit keypad
  • Object 'Find' - lets you search by lockout status or by text
  • Weather band with enhanced SAME Weather Alert functions and weather priority—access weather channels and alerts with the push of a button
  • Priority Scan - the scanner will sample conventional objects for activity periodically while scanning and monitoring other objects. The scanner will also give IDs priority over other IDs while checking a particular trunking system for activity
  • 20 dB attenuator - lets you program your scanner (per object or globally) to reduce the scanner's sensitivity to strong local signals or noise caused by these signals to reduce interference
  • Create a password to use scanner
  • Computer interface and Programming (with computer control)
  • 3 function keys; softkeys, that when pressed, execute the function that is shown just above the key in the display
  • 5 way navigation keys to access special modes and programming options
  • 4 line x 16 character display with relative signal strength meter
  • Display of the Radio ID of the transmitting user
  • Data Cloning - lets you transfer the programmed data from one scanner to another. You can also download the programmed data from a PC to the scanner or upload the programmed data to the scanner (using an optional two-way PC cable) with optional software
  • BNC connector


RR System Compatibility

This scanner is compatible with the following Trunking System Types and System Voices used in the RadioReference Database, of course you must verify that the scanner will cover the appropriate frequency range:

  • System Voices:
    • Analog
    • Analog and APCO-25 Common Air Interface
    • APCO-25 Common Air Interface Exclusive

Operating Tips

Included Accessories

  • Antenna
  • Printed Owner's Manual
  • Black non-rechargeable battery holder
  • Yellow rechargable battery holder
  • Belt clip

Recommended accessories (Not included with the radio)

  • RS 800 Mhz duckie antenna
  • These items are no longer listed on the RS website under these SKUs. It's possible they may be available from places like Amazon or eBay, or under another SKU
    • RS #273-355 9VDC/ 800mA AC Adapter
    • RS #273-369 9-Volt Vehicle DC-to-DC Adapter
    • RS #273-336 Adaptaplug C - Needed for the above adapters
    • Replacement Belt clip - Radio Shack RSU part number 12418273. Cost is $3.49 each plus shipping. See your local Radio Shack store to order.

Discriminator Tap

  • Also it has an "Audio Boost" to help better audio.

CPU/DSP Upgrades

Related Pages

Related Wiki Articles

Mailing Lists / Forums

Pro-106 Scanners for Sale


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