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Product Details
Since analog shutdown, reliable helicopter reception of digital off-air signals (pictures) and IFB is proving intractable. Analog reception had been difficult, but was mostly cured by the use of our PRO channel system when the station could cobble together an antenna that worked. Digital has proven much more challenging but MSI has the answer and is pleased to introduce the DSPversity™ ATSC diversity receiver and antenna system (patent pending).
The DSPversity is a four channel diversity receiver utilizing 6th generation LG tuners, each with its own antenna. The data from the tuners (transport stream) feed a proprietary DSP computer that MSI developed, which “patches together” a valid transport stream from the fragments arriving from each of the four tuners. While no one tuner in a moving helicopter will deliver a valid signal for more than a few seconds, chances are good - several thousand to one - that at any instant one of the tuners will have good data. As an added benefit this same hardware can deliver very reliable over-the-horizon DTV reception for cable and repeater applications.
Tested operationally several times, the antenna problem has been solved with an internal array of antenna. While FAA approval for permanent installation is needed - and is underway - the requirements are much less demanding when you don’t have to penetrate the skin of the helicopter for installation.
IFB is especially problematic in helicopters because cell phones are banned by the FCC in any aircraft not on the ground. Low latency IFB is provided in the DSPversity by using our field proven DIGITAL PROceiver technology, allowing for full interoperability in live trucks and helicopters.
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