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.
|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*
|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
* 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.
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.