R&S®VU220L VHF Power Amplifiers
For ground-to-air and naval radiocommunications
Applications
The R&S® VU220L VHF power amplifier is designed for the following system applications:
- Optimum of efficiency in connection with R&S® Series200, R&S® Series400U and R&S® M3SR (R&S® Series4400) communication systems; for details see 'Features'
- Single and multichannel application
- Extension of the usable propagation range beyond LOS (making use of the physical bending effect)
- Extension of communication range under adverse technical conditions: compensation of RF power losses of antenna filters, long antenna cables or unforeseen influences like poor coaxial cable, connector or antenna matching (reflection losses) as they can occur under critical circumstances
- Increase of the AJ (antijam) margin, i.e. increased ECCM resistance in jammed communication environment
- Amplifiers are with RF bypass relays and enable:
- operation in standard transceiver mode via the only TX/RX antenna path or
- power management: normal/high power mode switchable
- Use in radio systems with DC backup supply
- Automatic AC/DC switchover
- Continuous operation (100% duty cycle)
