R&S^®VD480L UHF Power Amplifiers

For ground-to-air and naval radiocommunications

Features

Features	Benefits for customer

Excellent cooling and monitoring circuitries Sensor-controlled forced-air cooling (in 2 steps) Oversized heat sink Graceful power degradation by PIN diode control circuit in the event of mal function eg high input power, poor VSWR at the output or other adverse operation conditions Automatic switching off at critical temperature	Continuous and safe (self-protecting) operation High communication reliability High MTBF
Excellent spectral purity (with Series 200 or 400U exciters) by Multi-stage high-pole harmonics filter Circulator integrated in front of the harmonics filter, both included as standard	Interference-free operation
Broadband design	Wide range of system applications including FH (frequency hopping); guaranteed specifications over the entire frequency range
Automatic AC/DC switchover and alternative AC supply models for 110 V_AC etc. and DC for 230 V_AC etc. and DC	High system flexibility
Alternative RF bypass (TX/RX switch) solutions VD480L models without RF bypass relays VD480L models with RF bypass relays Control output to any external TX/RX switch	High communication reliability High system flexibility
Integrated test and service facilities TEST LED (sum nogo check) and other green LEDs Service field on front panel monitors up to 15 parameters and stores them (red LEDs) Service connector on rear: 37-pin connector for failure diagnosis	Quick failure diagnosis and Ease of maintenance