Beacon Receivers

Beacon Tracking Receiver
RF Products

Novella SatComs tracking receivers have been designed to track and measure pilots or beacons of all known commercial and military satellites. They are particularly suited to track satellite beacons (frequency and power stable signals generated on board satellites, used for telemetry and control) in earth stations using large antennae requiring good boresight alignment and stable uplink power.

These receivers are synthesised, in 10kHz steps, allowing accurate targeting of the pilot (generated on the ground and re-transmitted on board) on the on-board beacon. Beacon Tracking Receiver

Novella's most common tracking receiver has an input at L-band, 940 to 1,750MHz, optionally 940 to 2,150MHz. The L-band signals are downconverted to around 70MHz and then processed by a coherent tracking and detection module.

The tracking module uses a 2kHz PLL, optionally 300Hz, for signal acquisition and level measurement by coherent detection. A search device tunes a VCO (usually by ±200kHz, optionally wider or narrower customer defined values) close to acquisition. Phase lock is at that point achieved by PLL pull-in. An anti-sideband (ASB) device prevents lock to telemetry sidebands. This is designed to avoid sidebands between 2kHz and 50kHz from carrier.

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