The Automatic Transmitter Switch (ATS) acts as 1+1 passive reserve controller monitoring the correct operating state of a transmitting equipment, allowing to detect possible failures, and automatically replacing it with a reserve transmitter if needed. The detection of the correct working status of the transmitters is made at radio-frequency level by using directional couplers. The operational parameters of the system, such as 0dB power level, intervention threshold, switching time of the transmitters, manual or automatic working mode, hot or cold stand-by, can be configured by display and keys user interface. The system can be remotely controlled via serial (RS232 or RS485) or parallel (with stationary or temporary contacts) connection.

It is provided with audio (FM), video (analog TV) and ASI (digital TV) distributor for base-band signals to be sent to the two transmitters, and the 19kHz pilot tone coming from the exciters can be switched to an RDS encoder, if any. The switch on and off of a transmitter is made by free contact and by AC Power supply (for AC power up to 500W).

The ATS1000 and ATS2000 models are equipped with Coax and Dummy Load for respectively 1kW and 2kW 1+1 transmitters change-over.

All ATS models are available with time controlled change-over in order to achieve a night switch to a different exciter and/or transmitter.

Main characteristics:

• Rack 19”-2U (20U for ATS1000 and ATS2000)
• FM switch with built it 250W dummy load (ATS250FM only)
• HOT and COLD stand-by control for the transmitter
• Manual and Automatic switch-over
• Audio (Stereo and MPX) distribution with 19kHz pilot switch for external RDS encoder
• Video and ASI distribution
• RF monitoring trough internal (if internal dummy load is present) or external directional couplers
• Mains supply switch for transmitters with zero-cross detection
• No calibration point
• Intervention thresholds user adjustable between -0.5dB and -6.0dB
• 2 different alarm mask time user selectable
• Self-calibration of the power reference level (0dB)
• Alarm log
• Display for complete user interface
• Leds on front panel for quick view of status
• Serial (RS232 and RS485) and parallel remote control
• Universal Power Supply