Uplink Power Control Specs

The UPC3000 represents a new concept in Uplink Power Control.

Satellite uplink stations, mainly for radio and TV broadcasting, use uplink power control to compensate for sporadic but sometimes severe atmospheric losses due to rain, ice and/or snow in the satellite path. Several systems have been used over the years with variable, mixed success. The ideal Uplink Power Control System should be fast, reliable, simple and avoid unwanted saturation of transmitting earth station HPAs and satellite on board equipment. Novella SatComs pioneered a novel simple approach for the uplink power control task using the real time accurate measurement of a satellite beacon level to control a variable gain amplifier placed in the uplink signal path. The resulting combination of the highly successful UPC300 and the long established B355/B356 range of beacon tracking receivers is based on the principle that each 1dB of loss on the downlink will be compensated by an additional 1dB gain on the uplink, and it became a best selling system due to great simplicity, reliability and ease of commissioning and installation. Provision was made for the user to limit the amount of adjustment in order to prevent HPA saturation.