The radio (radio modem) MOST is designed for digital data exchange over a radio channel in a simplex and (or) half-duplex mode.
The radio is connected to peripherals via a standard serial port RS-232. Power cables and antennas are connected to jacks on the modem rear panel. A metal housing ensures a high level of protection against external disturbance. Transceiver modules and power modules are rigidly attached to one another.
The radio (radio modem) has a wide range of service functions, which increase its performance characteristics; there is a possibility of measuring and outputting data on the level of an input signal, voltage standing-wave ratio of an antenna-feeder device, supply voltage, temperature inside the transmitter housing etc.
| Parameter | Value |
|---|---|
| Transceiver operation mode: simplex and (or) half-duplex | |
| Frequency band, МHz: | |
| — «PP-М» | 146—174 |
| — «PP-D» | 450—470 |
| Data rate, bit/s | 9600 |
| Minimum frequency spacing, kHz | 25 |
| Transmitter input power, W | 5; 10; 20* |
| Probability of invalid reception of bits at the input level of 2 mV at a rate of 9600 bit/s, (PP-М and PP-D), not less | 1х10-6 |
|
Probability of invalid reception of bits at the input level of 0.7 mV at a rate of 9600 bit/s, (PP-М and PP-D), not less |
1х10* |
| Probability of data set delivery in noise free mode at the input signal level of 0.2 mV at a rate of 9600 bit/s | 0.9999 |
| Number of channels | up to 16 |
| Modulation | GMSK |
* — other values can be programmed within 3—23 W.
| Parameter | Value |
|---|---|
| Operating temperature range, °С | -40…+60 |
| Temperature storage limitation, °С | -50…+70 |
| Time to failure, h | 40000 |
| Average lifetime, years, not less | 15 |
| Version | Configuration | Frequency band, МHz | Power supply voltage, V | Mass, kg | Overall dimensions, mm |
|---|---|---|---|---|---|
|
MOST-M/MOST-MM car version |
PP-D/PP-М | 450—470/ 146—174 | 13.2 | 1.7 ±0.2 | 220x230x48 |
| MOST-М1/MOSТ-ММ1 locomotive version | PP-D/PP-М, BP 48/12 В | 48.0 | 4.1 ±0.3 | 280x240x97 | |
| MOST-S/МOST-SМ fixed version | PP-D/PP-M, BPS 220/12 V | 220.0 | 7.3 ±0.3 | 280x230x171 | |
| MOSТ-S1/МОSТ-SМ1 fixed version | PP-D/PP-М, BPS 220/12 V* | 220.0 | 7.3 ±0.3 | 360x230x171 | |
| МОSТ-L locomotive version | PP-МL, BP 48/12 V | 146—174 | 48.0 | 4.1 ±0.3 | 280x240x97 |
| МOSТ-V van version | PP-МV | 13.2 | 1.3 ±0.2 | 206x142x60 | |
| МОSТ-МL car version | PP-МL | 13.2 | 1.7 ±0.2 | 220x230x48 | |
| МОSТ-SL fixed version | PP-МL, BP 48/12 V | 220.0 | 7.3 ±0.3 | 280x230x171 | |
| МОSТ-SL1 fixed version | PP-МL, BPS 220/12 V* | 220.0 | 7.3 ±0.3 | 360x230x171 |
* — with the RS232/RS422 interface converter board
PP-3U transmitter
PP-3U transmitter is compatible with protocols of PP-ML transmitter but has smaller dimensions, mass, power consumption and the possibility of choosing communications interface.
МОSТ-3U radio modem
МОSТ-3U radiostation consisits of transmitter PP-3U and locomotive radio components supply unit, it is compatible with protocols of MOST-L radiostation.
Sales department:
Chief designer for on-board telecommand systems:
Chief designer for navigation and communication:
Chief designer for check-out equipment:
Fax: +7 3412 722 579
Email: svcomp@irz.ru
