Designed for use in the receiving units of modern weather and navigation radars and provides:
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reception, amplification and double conversion of the input signal;
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discrete adjustment of the transmission coefficient by external control signals in broadband mode;
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reducing the sensitivity of the receiving module for the duration of the clock automatic adjustment of the noise level;
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locking the receiving path for the duration of the transmitter;
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protection against impulse power seeping into the input of the module;
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high radio-tightness of the receiver due to the shielding of all high-frequency modules.
The radar receiving module has an input attenuator for adjusting the input signal level and protecting the low-noise amplifier for the duration of the probe pulse, with a short recovery time.
Specifications:
- operating frequency range ...................................................... X;
- gain (adjustable), dB ................................................................ 46;
- noise figure, dB ......................................................................... 3,5;
- the upper limit of the linearity of the amplitude characteristic, dB .......................................................................- 35;
- coefficient of a standing wave at the entrance .......................................................................................................... 1,6;
- selectivity for mirror reception channels, dB .................. 40;
- bandwidth by fпч2 = 28 MHz at the level of -3 dB, MHz .............................................................................................................. 5;
- depth of manual adjustment of the transmission coefficient, dB ............................................................................... 25.