SU784011A1 - Measuring receiver - Google Patents

Description

one

The invention relates to the field of rarefied technology and can be used for spectral analysis of radio signals.

Known measuring receivers containing input high-frequency switch, blocks of input and output devices in the composition of the preselectors of filters and valves, frequency converters and meter ratios 1,

However, the accuracy of their measurements is not sufficient.

The purpose of the invention is to improve the measurement accuracy.

This goal is achieved due to the fact that a measuring receiver containing a series-connected input switch, a block of input devices, a frequency converter, a second input is connected to the local oscillator, and a block E | outgoing devices, as well as a ratio meter, narrow-band filter, and a calibrator It additionally contains two frequency converters and an output switch connected to the input switch via a narrow-band filter and a second frequency transformer, with the output output switch the key is key

the ratio meter, one of its inputs is connected to the output of the output devices block, another input is connected to the output of the Calibration generator, the second output of which is connected to the second input switch input through the third frequency converter, and the second inputs of additional frequency converters are connected

10 with the corresponding hetergrg codes. Dina.

The drawing shows a block diagram of the measuring receiver.

The extractor receiver contains an input switch G ,, block 2 input devices, the first frequency converter 3, block 4 output devices, a meter 5, a local oscillator 6, a second frequency converter 7, a node 20 a band-pass filter 8, an output switch 9, a calibration generator IO and third frequency converter 11.

Works measuring receiver

25 as follows.

At the first stage of measurements, the input signal U |, .. is fed to the input switch 1 and. Through the block 2 input devices, frequency converter 3, block 4 output devices and output

thirty

Claims (1)

Claim A measuring receiver containing an input switch, a block of input devices, a frequency converter connected to a local oscillator with a second input, and a block of output devices, as well as a ratio meter, narrow-band filter and a calibration generator, which is different that, in order to improve the accuracy of measurements, it will additionally ^ contain two frequency converters and an output switch connected to the input switch JQ through a narrow-band filter and a second frequency converter, while the output to the output switch is connected to the relationship meter, one of its ....... the input is connected to the output of the output device block, the other input is connected to the output of the calibration generator, the second output of which is connected to the second input of the input switch through the third frequency converter, and the second inputs additional frequency converters are connected to the corresponding outputs of the local oscillator.