Repeater radio station assembly URR-4
Descriptions
Technical parameters
Descriptions
URR-4 is designed to organize the work of radio stations in two modes:
- radio station;
- repeater.
URR-4 is intended for use in conjunction with engineering communication system “Channel-T” and data communication system “Stream-2".
Technical parameters
Impedance from the communication line | 600 Ohm ±10% |
Transmitter triggering | |
line signal | with voice |
PC signal | SQ level |
Transmitter off delay when the voice signal from the line was lost | minimum 1 sec |
The level of the output to the communication line | -13 dB/+4 dB |
Acceptable input range | -20 dB to +10 dB |
Indication
The level of the input from the communication line | |
Radio station signal level | |
Radion station starting | |
Radio station/repeater operation mode |
Receiver
Number of frequency channels | 8 |
Frequency band | (134 to 160) MHz |
Channel spacing | 12.5 kHz |
Frequency stability | ±2,5 ppm |
Sensitivity (12 dB SINAD) | 0.20 µV |
Antenna impedance | 50 Ohm |
TRANSMITTER
Output power | 10 W |
Frequency stability | ±2,5 ppm |
Noise level | 45 dB (25 kHz) |
Harmonic distortion | less than 5% |
Receiving and transmitting radio station operate to one antenna via duplex filter | |
Temperature range | −30 to +60ºС |
URR power supply voltage | 220 V mains |