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A high-speed signal limiter amplifier. Designed for use in electronic counting frequency meters. Description: The magnitude of the input signals for selecting the switch input and inverting the signal of the limiter amplifier at a supply voltage of ± 5 V: - logical "0" not more than 0.2 V; - logical "1" at least 4.8 V. The value of the input signals of switching on / off the switch at a supply voltage of ± 5 V: - logical "0" no more than 3.3 V; - logical "1" at least 4.1 V. The magnitude of the output signals of the switch at a supply voltage of ± 5 V and a load of 300 ohms connected to zero potential: - logical "0" from 3.1 V to 3.4 V; - logical "1" from 4.0 V to 4.3 V. The minimum input voltage of the sinusoidal shape in the frequency range from 10 Hz to 200 MHz should be no more than 30 mV. The maximum input voltage of the sinusoidal shape in the frequency range from 10 Hz to 200 MHz must be at least 1 V. The value of the supply voltage: - positive 5±0.2 V; - negative -5±0.2 V. The current consumption should be no more than: - from a positive power source 110 mA; - from a negative power supply 35 mA.

The module uses connectors of the SMA type. At the request of the customer, any combination of output signals is possible. When installing two amplifier modules in the above devices, the total number of output signals increases to twelve.

Basic electrical characteristics 1. Operating frequency, MHz 63.85 MHz ± 0.2 2. Rated output power, at least, kW 1 1 3. Deviation of the amplitude characteristic from the linear one, no more than, dB 2 4. Relative level of harmonic components of the output signal, no more than, dB minus 20 1, 2 5. Nominal level of the input RF signal, dBm 3 6. Input and output impedance, ohms 50 7. VSWR RF input, no more than 2 8. Permissible VSWR RF load, no more than 3 9. Pulse mode of operation 10. Duration of the radio pulse, no more than, ms 100 11. Effective borehole, at least 2 12. Rise/fall time of the RI amplitude, no more than, ns 500 1, 4 13. Noise, no more than, dB/Hz minus 154 1, 5

Two-channel analog switch with signal summation function Designed for use in oscilloscopes with a bandwidth up to 350 MHz. Technical specifications: The value of the voltage between the outputs of the switch at load resistance RN = (50 ± 2.5) ohms and opening voltages UU1 = (2.0 ± 0.2) V and locking UU2 = (4.2 ± 0.2) V channels supplied alternately to the corresponding inputs (start 1, start 2) of the switches must be: in the absence of an input signal from minus 0.1 to plus 0.1 V with an input signal UC = (0.3 ± 0.05) V supplied to one of the inputs of the open channel (0.45 ± 0.1) V with an input signal UC = (0.3 ± 0.05) V supplied to one of the inputs of both open channels (0.45 ± 0.1) V