PR-75a AutoSmart-Tuning™ Receiver
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The PR-75a personal receiver is the newest generation of COMTEK's user-friendly, digitally synthesized monitor receivers designed for high fidelity auditory assistance and other personal communication applications. Ideal where multiple transmitters in the 72-76 MHz band are operating independently in the same building, the PR-75a AutoSmart-Tuning™ makes it possible for the listener to use the same receiver to attend multiple programs at church services, school classes, museum exhibits, theaters, and stadiums, etc.
This unique receiver will automatically turn itself on and initiate its AutoSmart-Tuning™ when the earphone is plugged in. The PR-75a's AutoSmart-Tuning™ process selects the closest appropriate transmitter in its vicinity and then sets itself to this channel. This also establishes the receiver's compatible frequency group when multiple channel operation is in use in the same area. A convenient one-button tuning control will cause the receiver to seek only channels belonging to its frequency group, eliminating the possibility of tuning to an incorrect channel.
A single LED indicator system monitors all necessary receiver functions:
- During the initial tuning process, the LED indicator will blink very rapidly indicating channel selection.
- The LED indicator will illuminate continuously when a signal is being received.
- A steady slow LED flash rate indicates that the receiver is no longer receiving a signal.
- The LED will flash rapidly indicating that the 3 volt battery supply has fallen below 2 volts and the unit must be recharged or two new AA size 1.5 volt batteries are needed.
The PR-75 is compatible with the M-175 Personal Communication Transmitter, the BST-75 mini base station transmitter, and the BST-50b digitally synthesized base station transmitter.
FP-75 Field Programmer:
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The FP-75 Field Channel Programmer provides a quick and convenient way to change the channels of large numbers of PR-75 receivers to accommodate different venues requiring a different set of channels. The programmer will allow the receiver to receive one or more designated channels or any specific group channels that can then be manually accessed in sequence for "roundabout" type of channel selection with the AutoSmart-Tuning™ button (AST). In this mode of operation the AutoSmart-Tuning™ function is inhibited and only the channel or channels programmed will be received.