The ACU-1000 is a switch that can interconnect dis-similar radio systems.

Coupled with the radio over internet protocol (RoIP) / voice over internet protocol (VoIP) products, the ACU-1000 can be networked to provide hundreds of nodes for larger applications and for wide area interoperability systems (WAIS).

Radio/Telephone Interface Units
The phone patch family uses a digital signal processor (DSP) to dynamically provide a broadband hybrid null, thus eliminating VOX falsing and other problems that are characteristic of other phone patches.

VMR-12A Voice Modulation Recognition Unit
The VMR-12 Voice Modulation Recognition Unit is packaged in a 19 inch EIA standard rack-mounted Eurocard cage. A Power Supply Module and up to twelve VMM-2 Voice Modulation Recognition Modules are plugged into the card cage backplane. Each VMM-2 Module provides the next generation of reliable speech detection capability in noisy audio signals by using state of the art Digital Signal Processing (DSP) techniques. Each module’s DSP is capable of accurately detecting speech, including the elusive first syllable, in any of the following audio sources: in audio received by a radio; in a noisy phone line; in a tape recording made under adverse conditions; or in an intercom system being used in a high ambient background noise environment.

Voting Products
The SNV selects the input channel with the best quality audio based on the DSP computed signal-to-noise ratio of the incoming audio signals.

PPS-100 Pre/Postselector
The PPS-100 Pre/Postselector permits operation of co-located receivers and transmitters on frequencies separated by as little as 10%. When used with receivers, the unit functions as a preselector, providing an additional front end selectivity stage. This reduces the receiver desensitization and overload that would normally occur in the presence of strong adjacent RF transmissions. The unit is used as a postselector with transmitters. It rejects spurious outputs and broadband noise in the transmit signal before it reaches the power amplifier, thereby limiting interference to neighboring receivers. The PPS-100 performs both functions with a transceiver; it follows the radio’s key line and switches between the preselector and postselector modes.

MTX-1616 Audio/Digital Switch Matrix
Our’ MTX-1616 Audio/Digital Switch Matrix provides a flexible single-unit answer to the need for different switching circuits for each of the many configurations. The unit has been designed to switch both audio controls and control signals simultaneously; the standard configuration contains both a 16x16 audio switch matrix and a 16x8 delay matrix.

TRP-1000 Transportable Radio Interconnect
The TRP-1000 Transportable Radio Interconnect System provides radio interoperability during missions requiring communications between diverse organizations using different radios and different frequencies. The system package consists of one or more transportable cases and includes multiple radios pre-wired to JPS Communications’ ACU-1000 Intelligent Interconnect Unit. The radios, which cover all frequency bands can be cross-connected through the ACU-1000.

NRU-600 DSP Noise Reduction Unit
The NRU-600 is an advanced audio signal processor that provides maximum flexibility to eliminate or reduce most types of interference from voice, CW and data transmissions. The unit uses a high speed Digital Signal Processor (DSP) to provide simultaneous bandpass filtering, noise reduction and multiple tone/heterodyne removal. An automatic Notch filter removes multiple heterodynes from tune-ups, adjacent channel carriers, CW, RTTY, or similar signals without interfering with voice signals when a voice bandwidth has been selected. The notch filter operates in 5 milliseconds or less. Two noise reduction algorithms are provided in the NRU-600: an FD (Frequency Domain) algorithm and a TD (Time Domain) algorithm; to give the operator the best audio noise reduction possible.