Your new RadioShack PRO-2050 VHF/UHF/Air/800MHz 300-Channel TrunkTracker Home Scanner is one of a new generation of scanners de- signed to track Motorola™ Type I, Type II (such as Smartnet™ and Priva- cy Plus™), and hybrid analog trunking systems, which are extensively used in many 800 MHz communication sys- tems.
Trunking communications systems let
alarge group of 2-way radio users (or even different groups of 2-way radio users) efficiently use a group of fre- quencies. Instead of selecting a spe- cific frequency for a transmission, the 2-way radio user simply selects a talk group. The trunking system automati- cally transmits the call on the first available frequency, and also sends a code that uniquely identifies that 2- way radio user’s transmission on a dif- ferent frequency called a data chan- nel.
Since the trunking system might send individual 2-way radio user’s calls and response transmissions on different frequencies, it is difficult to listen to trunked communications using a regu- lar scanner. The PRO-2050 monitors the data channel frequency sent with
a2-way radio user’s transmission and instantly switches to an active fre- quency, so you can hear the call and
response for that 2-way radio user and easily “follow” the conversation.
The scanner also lets you scan con- ventional transmissions, and is pre- programmed with service-search banks for convenience. By pressing a single button, you can quickly search those frequencies most commonly used by public service and other agencies without tedious and compli- cated programming.
This scanner gives you direct access to over 30,000 exciting frequencies, including those used by police and fire departments, ambulance services, and amateur radio services, and you can change your selection at any time.
Your scanner also has these special features:
Ten Channel-Storage Banks — let you store 30 channels in each bank to group channels so you can more easi- ly identify calls.
Five Scan Lists — let you store up to 50 IDs in each tracking bank (up to a total of 500).
Triple-Conversion Circuitry — virtu- ally eliminates any interference from IF (intermediate frequency) images, so you hear only the selected frequen- cy.
