Rostec developed a VHF radio station that provides protection against powerful interference

Concern "Constellation" (part of Rostec Corporation) has developed a new generation VHF radio station, said press-service corporations.

“In conditions of intense interference, exceeding the signal power more than 1000 times, the radio station allows you to exchange digital information, including coded speech, at speeds up to 256 kbit / s,” the release said.

The product is intended to provide radio communication in the tactical level of the company control - battalion - regiment.

It is reported that it applied "spatial signal processing based on adaptive noise compensators, which makes the radio station practically invulnerable to any external interference." The applied technology “provides effective communication when exposed to electronic jamming, in densely populated cities, in the mountains, in the forest,” the press service explained.

Compared to previous generation radio stations, it provides an increase in the communication range by 25% in the absence of interference and 10-15 times when subjected to powerful interference.

According to the report, “the design implements the principle of a software-defined radio (Software-define-radio), which allows for software updates with the addition of new functions and enhanced capabilities.”

New radio stations will be launched in the series this year.

Comments

[cniza]

Compared to previous generation radio stations, it provides an increase in the communication range by 25% in the absence of interference and 10-15 times when subjected to powerful interference.

Communication is the life and success of completing tasks.

[himRa]

Quote: cniza

New radio stations will be launched in the series this year.

I’m glad that they don’t put in a long box, well, plus that there will be a need for a civilian.

Communication is the life and success of completing tasks.

[bouncyhunter]

Hi Raheem! The pace is very pleasing - we just developed it and are already launching it in a series.

[himRa]

Hello Pasha! this idea is primarily good for the Army but has a chance of success because it will be in demand in the civilian world! they also need noise-resistant walkie-talkies for the conditions of the Far North, for example, where there is enough interference from solar activity!

[bouncyhunter]

That's it! The widest range of applications. Therefore, there is no doubt that this development will find its user.

[just exp]

and notice what successes in the new equipment?
it is really pleasing that we lag behind the states quite a bit (yes there is a lag, but the states did not have our 90s). and after all, recently our radios were like a miserable accordion and clogged with a simple radio scanner.

[vkl.47]

The good news is that this year it’s already in series. But it happens that we just started to develop

[Teberii]

The struggle will always be, some, I establish obstacles, others counteract them.

[Vitalson]

It is good if this system will be everywhere in the troops and will work as it is written in the article.

[210ox]

Someone explain on your fingers .. what is "spatial signal processing based on adaptive noise cancellers" ..

[KVIRTU]

Adaptive Compensators: "Radio stations (R-168 family) automatically analyze the interference situation at the frequencies allocated for operation and, if necessary, switch to frequencies with a minimum level of interference".
Spatial processing. Instead of traditional omnidirectional or wide-directional for VHF antennas, it is suggested to use phased antenna arrays that form a narrow beam only in the direction of the subscriber. Which reduces the impact of interference from other directions.

[AVA77]

There is nothing revolutionary in the SDR, I myself have a couple of such receivers, China has mastered them a long time ago and if there is any novelty, it is only in the frequency tuning and encryption algorithm

[Glory1974]

spatial signal processing based on adaptive interference cancellers

Do not delve into it, it’s the same thing that “you need a lot of money to get it, but we’ll write off how to drink it”.

[slovak007]

Yes, this is no longer the P-105 . The dream of every radio amateur!

[Justme]

Something the data transfer speed is high at a given interference level ..

[Glory1974]

Compared to previous generation radio stations, it provides an increase in the communication range by 25% in the absence of interference and 10-15 times when subjected to powerful interference.

The more interference, the greater the communication range?

[Glory1974]

In conditions of intense interference exceeding the signal power by more than 1000 times, the radio station allows you to exchange digital information, including encoded speech, at speeds up to 256 kbit / s ”

If the interference power is more than three times, no device can receive a signal except the human ear.

[Niccola Mack]

What are you not accustomed to the manner of presentation of our magazines - which stupidly retell the characteristics, absolutely not representing the essence.
The signal-to-noise ratio at the receiver input (1: 3 is for a telegraph) is valid for communication at a fixed frequency, but using pseudo-random frequency tuning and adaptive tuning out of interference (choosing the “purest” frequencies according to a special program), you can work in the conditions of band interference ( which can be orders of magnitude more powerful) - theoretically impossible to drown out the entire range. And if you use more or less directional antennas - the situation is still improving by orders of magnitude.
This has all been implemented for a long time (starting from 3G cellular communication works with HRPC, which cannot be implemented without SDR (with which 2 G worked already)) - but we simply did not have money for production, now we are finding money.

[Glory1974]

The full shnyaga is written in the article.
Amerikosy (US military) transmit color photo in HF range in 60 seconds. We are black and white in 60 minutes. Questions?

[Niccola Mack]

transmit color photo in HF range in 60 seconds

What is the size of the photo - in kilobytes?
Take the channel bandwidth in kilobits - divide by 10 and get an approximate transfer rate in kilobytes.
Further, it all depends on the modem - but as a rule you will not get high speed in the HF range - the frequency is too low.
Load the emulator of a normal modem into the memory - and the speed will be like that of the Yusovites, and you don’t need to compare too old technology - and draw broad conclusions.

[Georg948]

I will explain the essence of spatial selection based on interference compensators.
1. The interference (and not the noise of the receiver), for example, intentional, covers the signal spectrum and exceeds it by more than 1000 times (30 dB), so it is impossible to tune in frequency from the interference.
2. The antenna system of such a radio station consists of two conventional whip antennas. With the weight sum of the signal + interference from these antennas, the interference is subtracted, and the signal can even be amplified, since the signal and interference come from different directions. In other words, zero is generated in the antenna pattern in the direction of the interference.
3. This technology is unique, implemented only in Russia, in the USA they are not able to do this.
4. We already have mass-produced two types of such radio stations.