613-8 Series, 700/800 MHz

Digital Signal Booster

61-89A Series, 806-869 MHz

RescueLine Signal Boosters

61-89A Series, RescueLine Signal Boosters

61-89A Series, RescueLine Signal Boosters

The 613-8 Series, Digital Signal Booster operates in the 700/800 MHz range with 1-60 filters available. All state-of-the-art product components are protected by a NEMA 4 style enclosure to meet the demands of the NFPA requirements. Intuitive web browser interface allows booster to be easily configured for changing RF environments. Filter bandwidth is user selectable (12.5kHz, 25kHz, 50kHz, 3MHz and 9MHz standard or custom bandwidths are also configurable).

The 61-89A Series, RescueLine Signal Boosters, are the first such signal-booster systems to fully comply with the IFC 2009 and NFPA 1 2009 codes which makes it the state-of-the-art electronic lifeline for first responders inside a new building. The RescueLine Series delivers on a key objective: ensuring that first responders have reliable radio communications in large structures.

via Bird Technologies Group – TX RX Systems RF Signal Boosters: NFPA Complaint, Channelized, Mission Critical Solutions.

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Arduino RTTY

This page contains my source code for my Arduino RTTY transmitter. This device uses an Arduino to control a DDS-60 (Analog Devices AD9851) DDS IC, which in turn creates the required frequencies to transmit RTTY at 45.45 baud (approx) with 170 Hz shift.

Source Code for AD9851 RTTY Transmitter

The code is a selection of modules glued together, but works well. See the YouTube video below for a demonstration.

via Arduino RTTY – George Smart’s Wiki.