Shenzhen Sinosun company specializing in the field of wireless data transmission product development and production, is one of the industry’s largest producer, holds 70% of similar products in China market, Shenzhen Sinosun’s many radio stations have become the industry standard model.

Shenzhen Sinosun’s family of digital radio telemetry remote control using digital signal processing, error correction coding, software radio, digital modem and an integrated design, surface mount technology, high performance, high reliability features, radio provides a standard RS-232 directly with computer data port, seismic data acquisition, RTU, PLC, data terminals, GPS receivers, digital cameras and other connections, the transmission rate of 19200bps, error less than 10-6 (-110dBm), the transmit power 0.5-25 tile can be adjusted to any type of radio can be set to master or remote station use, transit-free communication distance of 70 km, able to adapt to the harsh indoor or outdoor environment. Radio data and voice compatible, can work in simplex, half duplex, time division duplex TDD, full-duplex mode, receive the same frequency or different frequency transit network, and with remote diagnostics, testing, monitoring, meet a variety of applications telemetry network center and the distance between many distant stations, high-speed, highly reliable data acquisition and control.

     1, High targets: transfer rate up to 19200bps, transparent RS232 interface standard

                  High sensitivity low error-110dBm (BER <10-6)

                  70 km transmission distance

                  Conversion transceiver is less than 3ms

                  Low power consumption: <18mA (sleep mode)

     2, High reliability: the use of digital signal processing, digital modulation, error correction coding, SMT design the most advanced technology integration

                  Stations continuously transmit the work

                  Temperature / Humidity: -40 ℃~70 ℃/95%

                  Power supply voltage: 10.5 ~ 25VDC

     3, Network management: remote station status (voltage, temperature, error, power, receive power equal) Remote Monitoring

                  Remote Radio Alarm (low voltage, data format error, the temperature is too high, do not match, etc.) Remote Tips

                  Remote radio parameters (data rate, frequency, transmission power, etc.) remote settings

     4, The whole family / supporting the use of flexible: 230M/350M/400M/800M/2.4GHz have (can be applied to mountain, sea, flat Original, urban, suburban and other terrain and environment); simplex units, duplex units, hot backup sets are complete (with the manufacturers RTU, PLC, FTU, etc. can be connected directly)

In addition to digital data radio, remote radio telemetry many domestic use so-called “professional digital radio”, is working on the 230MHz frequency band analog FM intercom transceiver (ie, vehicle-mounted radio) plus restructuring MODEM made​​. In fact, this approach has long been out of abandoned in foreign countries. 220 ~ 240MHz frequency band is our radio management in planning the allocation of data transmission allows the use of one of the band, working in the analog radio frequency band have included Motorola, down New Zealand, Japan, Nissei, Japan’s Hitachi and China (Shenzhen, Beijing) other products, as opposed to digital radio has the following advantages and disadvantages:

      1 Advantages: cheap

      2 Disadvantages:

        Unreliable – the design requirements of vehicle-mounted radio transmitter can not be continuous, or burn Amplifier

                    As data transmission units made ​​with a modem is required with the device and process poor

                    Amateur radio use of technology, the environment and require a higher power range

        Low indicator – transfer rate is generally 1200/2400bps, Tester required repeated testing to achieve better bit error sensitivity 10-6

        High error – caused by a single PLL and transceiver PTT latency above 50ms conversion time, the transmitter is easy to lose the first data word

                  FM squelch tail noise (FM SQL tail) result in extra characters appear receiver

                  No error correction coding, interference, the data transmission is easy to fail

No network – do not come back or if the data transfer control can not be issued, can not determine the power failure, bad power supply, the signal is poor, Antenna mismatch, no high temperature or RTU data