Repeater radio station assembly
Descriptions
Technical parameters
Сircuitrys
Descriptions
The repeater radio station assembly is installed in REG-F to establish radio communication with mobile radio stations.
The station structure includes two units:
- a radio station unit consisting of two radio stations (receiver and transmitter), a duplex filter and a lightning protection module;
- the radion station starting unit RSSU4-R.
Technical parameters
Repeater radio station assembly
| Input impedance from the radio station | 10 kOhm |
| Output impedance to the radio station | 600 ±10% Ohm |
| Front-end amplifier gain range | 3 dB |
| Output amplifier gain range | 21 dB |
| The transmitter threshold relative to the rated input level | −15 dB |
| Radio station transmitter on delay | 0/1,2 sec |
| Maximum total harmonic distortion | 0,12% |
Radio station specifications
| Number of channels | 16 |
| Frequency band | 134 to 160 MHz (А); 148 to 174 MHz (С); 400 to 430 MHz (AS1); 450 to 485 MHz (D); 485 to 512 MHz (F) |
| Channel frequency step | 12.5 kHz/25 kHz |
| Ambient temperature | −30 to +60ºС |
| Frequency stability | ±2,5 ppm |
Receiver
| Sensitivity at 12 dB SINAD | 0.26 µV |
| Adjacent channel selectivity | 60 dB (12.5 kHz)/65 (25 kHz) |
| Intermodulation | 65 dB |
| Image rejection ratio | 65 dB |
Transmitter
| Output power | 1 W |
| Out-of-band emission | −60 dB |
| LF signal distortion | less than 5% |
| Emission | 16KOF3E (11KOF3E for 12.5 kHz) |
| Overall deviation | 5 kHz (2.5 kHz for 12.5 kHz ) |
Сircuitrys
RADIO CABLE CHANNEL ARRANGEMENT DIAGRAM
