Two-way radio converter of time-standard system

Two-way radio converter can be used in a time-standard system and is designed for reception and transmission of pulses with a linear-frequency modulation (LFM) in simplex mode. Recommended parameters LFM pulse: B = 90 MHz, T = 1 microsecond, Fц = 250 MHz. Housing - hermetical, protected by a plastic casing. The input signal is fed to the F-type connector (IN), who is also the output of the received signal.

Product specifications
Input frequency range 0,205...0,295 GHz
Operating frequency range 10,205...10,295 GHz
Communication range (with recomended parameters) 50 km
Horn gain 6 dB
Polarization type*
"transmission" mode
"reception" mode

vertical
horizontal
Heterodyne frequency 10 GHz
Transmitters nominal frequency deviation, no more 10-6
"Reception / transmission" mode switching time 3...4 μs
Maximum radiation power** (at input level 5mW) 800 mW
Second and third harmonic level of output signal transmitter, not less -30 dB
Spurious components, not more -40 dB
Dynamic range of receive path, not less 70 dB
RRS receiver selectivity, not less
On adjacent channel
On image channel

50 dB
40 dB
Dimensions 120х135х50 mm
Weight 0,2 kg

* Converter is oriented in space according to fig. 1. ** Converter is capable of emitting 800 mW of continuous power for 5 minutes every 20 minutes.


Fig. 1

Two-way radio converter consists of three functional parts: the transmission, reception, the control unit. Operation mode switching of converter performed to input voltage. When the supply voltage +10 V converter works "to receive", the supply voltage 14 V - to "transfer". Heterodyne running continuously. At the entrance of the receiving part installed microwave key to provide additional payoff for the work of transmitting and receiving converter "transfer". Feeding high-power amplifier is turned off in receive mode. MDV provides a key switch receiving and transmitting tract to the input connector. All the above described operation performs control unit.