(1/2 X 19”/2U STANDARD-RACK)
The RTC 25 Transmitter Combiner is very compact and, in spite of its small size, it features very good characteristics.
Its inherent intermodulation generation is kept extremely low, using Wisycom transmitters, thanks to the very high-quality “-3 dB power-coupler module” and other devices employed, accurately selected between the top-class brands on the market. Furthermore, a very low-loss and sharp low-pass filter on the output prevents any harmonics. Also the cross-talk between the inputs is very low, since they are decoupled by circulators.
The RTC 25 allows to operate also with output mismatching: in case of bad antenna or cable-impedance characteristics, the reflected-power coming back from the antenna is redirected to its internal dummy-load, capable to absorb a continuous power of up to 100 W.
The Transmitter-Combiner output-power can be monitored on the front-panel RF-meter featuring two scales, for the precise reading of one-signal and two-signal working. Pushing the red button (PUSH TO REFL), you can read on the meter the antenna reflected-power. The RTC 25 features also an accurate SWR-overflow surveillance circuit: the red LED light-on when the antenna SWR goes in excess of 1 : 2.
In the back-panel is located the feeding connector; the internal relevant fuse is a self-resetting type.
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