as-3m / 5m series of rain-proof dual-temperature anti-mine amplifier
features:
l philips low noise power amplifier tube, the latter class uses advanced push-pull circuit for amplification, with small distortion, high reliability, fast cooling, good indicator, more suitable for long-distance transmission.
l special dual temperature compensation function, the use of philips negative temperature resistance, can better automatic gain compensation and automatic slope compensation, that is compensated cable attenuation with temperature caused by high and low.
l the use of dual temperature compensation can achieve the longest distance transmission of not less than 12 km, and the basic release of all year round to enlarge, the real spring, summer, autumn and winter to achieve the same level.
l power supply part of a strict lightning protection facilities, and the use of a good anti-mine, high pressure (up to 5000v or more does not breakdown), low temperature rise, low power consumption of high quality and efficient transformers, coupled with special imported discharge tube and current large, fast response varistor, making lightning protection greatly enhanced.
l equipped with 9db fixed equalization and adjustable equalization, suitable for various lengths of cable transmission, 60v power supply with power insertion port, and built-in voltage selection lamp.