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Two-way radio line of high-speed data file type
Based on the tested in 2012 SDR KV-radio modem, which provides information data transfer rate more. ONIIP JSC has developed a two-way radio line of high-speed packet data transmission of the file type.
Part number:
Supplier:
The Ruselectronics holding companyDescription
The radio link supports simplex operation with 3 and 39 kHz signal bandwidth; It is possible to implement modes with a band of 6, 12 and 24 kHz, as well as work in half duplex and full duplex.
When operating in the 3 kHz bandwidth, the data transfer rate of the radio modem can automatically change in the range from 600 to 9600 bps, while operating in the 39 kHz band, from 7800 to 124800 bps.
The radio link provides automatic connection establishment at ringing frequencies, the number of which is generally not limited.
Radio line does not require binding to the system of a single time (CET). In the presence of CEB, an algorithm for accelerated entry into the relationship can be implemented.
Radio line automatically selects the optimal operating frequency from the set radio frequency frequencies, while supporting both fast single-stage sounding and more accurate two-level sounding. It is also possible to work at a fixed frequency set by the user.
In the process of data transfer, an automatic re-request of non-received packets is provided, as well as speed adaptation and frequency.
With sufficient power of the communication channel in the packet data transfer mode, the consumer speed is about 65% of the modem information speed, i.e. In the 39 kHz band, when using the ionospheric wave, consumer data rates of about 80 kbit / s are achievable. In the future, the consumer speed is planned to increase to 75 ... 80% of the information speed of the modem.
In December 2014, the radio link was tested on the NVIS highway when operating in the 3 kHz band and using semi-professional 200 W transceivers as radio equipment.
In March-April 2015, the radio link was tested on the NVIS highway and the Omsk-Moscow highway when operating in the 3 and 39 kHz bands in conjunction with professional 1 kW RPDA and RPU developed by ONIIP JSC.
The use of directional receiving and transmitting antennas allowed on the Omsk-Moscow route during daylight hours to provide an average for the entire test period user data transfer rate of about 57 kbit / s with a peak power of the WEDU no more than 1 kW. In the most successful sessions, the user data rate exceeded 80 kbps.
The total duration of a typical session was about 9 ... 10 minutes with a file size of 3 MB, using 3 calling and 8 radio control frequencies with two-step sounding. The actual transfer of data from this time took about 6 minutes.
The developed solutions will allow to increase the capacity of the main lines of HF radio communications of the Russian Federation by an order of magnitude.
When operating in the 3 kHz bandwidth, the data transfer rate of the radio modem can automatically change in the range from 600 to 9600 bps, while operating in the 39 kHz band, from 7800 to 124800 bps.
The radio link provides automatic connection establishment at ringing frequencies, the number of which is generally not limited.
Radio line does not require binding to the system of a single time (CET). In the presence of CEB, an algorithm for accelerated entry into the relationship can be implemented.
Radio line automatically selects the optimal operating frequency from the set radio frequency frequencies, while supporting both fast single-stage sounding and more accurate two-level sounding. It is also possible to work at a fixed frequency set by the user.
In the process of data transfer, an automatic re-request of non-received packets is provided, as well as speed adaptation and frequency.
With sufficient power of the communication channel in the packet data transfer mode, the consumer speed is about 65% of the modem information speed, i.e. In the 39 kHz band, when using the ionospheric wave, consumer data rates of about 80 kbit / s are achievable. In the future, the consumer speed is planned to increase to 75 ... 80% of the information speed of the modem.
In December 2014, the radio link was tested on the NVIS highway when operating in the 3 kHz band and using semi-professional 200 W transceivers as radio equipment.
In March-April 2015, the radio link was tested on the NVIS highway and the Omsk-Moscow highway when operating in the 3 and 39 kHz bands in conjunction with professional 1 kW RPDA and RPU developed by ONIIP JSC.
The use of directional receiving and transmitting antennas allowed on the Omsk-Moscow route during daylight hours to provide an average for the entire test period user data transfer rate of about 57 kbit / s with a peak power of the WEDU no more than 1 kW. In the most successful sessions, the user data rate exceeded 80 kbps.
The total duration of a typical session was about 9 ... 10 minutes with a file size of 3 MB, using 3 calling and 8 radio control frequencies with two-step sounding. The actual transfer of data from this time took about 6 minutes.
The developed solutions will allow to increase the capacity of the main lines of HF radio communications of the Russian Federation by an order of magnitude.