We asked the author to write in more detail about all the pros and cons of the device, and he agreed.Here's what happened:
Hello.I hope my story will help someone make a choice, especially since there is some experience in the field of radio communications behind them.I will try to express my point of view in a simpler way so as not to bore anyone. AT24C512C-SSHD-T
After a two-week study of the market, I chose a radar detector for myself, which is still a little-known brand in Russia, whose production is based in Korea.The Playme TWICE model with GPS support cost me 9900 rubles.To be honest, initially I wanted to spend half as much on the device, but once again I was convinced of the truth of the saying “the miser pays twice”.I'll explain why.
In general, I already had a simple and inexpensive radar detector in use.Which one, I will not say, so as not to discredit the brand.It's not about him, but rather that the gadget belonged to the so-called entry-level models.He, like most modern analogues, detected radars in the ranges: X (10.525 GHz ± 50 MHz), K (24.150 GHz ± 100 MHz), extended Ka (34.700 GHz ± 1300 MHz) and laser (spectral sensitivity 800–1100 nm) .Ka, for example, is not used at all in Russia.In a word, it was impossible to drive around the city.Constant false positives mixed with warnings about real radars on the way.As a result, I threw it into the far corner and took it exclusively on long-distance country trips.And why is he in the city if, like most motorists, I have a well-studied route that I travel regularly.From home to work or through school, picking up children from school.Agree, there is such a well-trodden path and you.And for sure, you also memorized the location of stationary speed cameras and know where a mobile traffic police ambush can lurk.
But one day, on my daily commute from work, a new radar appeared that I hadn't noticed for a whole week.And the section there is so provocative: wide, free - easy to exceed if you do not follow the speedometer.In short, a week later "letters of happiness" began to arrive.Then I remembered the radar detector again.Only now we needed one that was effective both on the highway and in the city.The circle was automatically narrowed down to devices with a GPS module and the ability to selectively disable all detected radar radiation ranges.By the way, my previous radar did not have such a function.And Playme TWICE has it.I thought that I would drive around the city, focusing only on the GPS-informer, that is, warnings about stationary cameras, whose coordinates are stored in the device's memory.But you know what?It was not necessary to disable all ranges, and here's why ...
How do you think a radar detector detects a particular type of radar?For example, you need to distinguish Strelka from Arena.These radars work in the same range, but the latter can "hit" in the back.In theory, Strelka can also work in the same direction, but most of these radars are still tuned to the oncoming flow.So, each radar has its own type of radiation.It is especially difficult to recognize impulse radars when the radiation is either there or not, and even the pulses themselves are too short, as is the case with Strelka.Some also use frequency spacing when the transmission and reception of the reflected signal occur at different frequencies.Now imagine: a new radar model with its own “handwriting” appears at the traffic cops.Radar detectors unfamiliar with it may mistake such radiation for interference or, at best, will not determine the type of radar aimed at you.To adapt most radar detectors to a new radar, intervention in the hardware is required, that is, the installation of additional modules on the board.But Playme TWICE uses the STM32F072RBT6 processor (ARM, 32-bit MCU, 48MHz), which allows you to significantly change the detection performance at the firmware level.By the way, the entire line of Playme radar detectors, with the exception of the younger TENDER model, is based on the STM32F072xx.Actually, it was this fact that made me fork out for a much larger amount than was planned.After all, the service life of the radar detector is noticeably extended.
My Playme TWICE with the latest firmware version is not only adapted to all modern radar systems, but also well protected from false alarms thanks to VCO technology, which effectively separates the useful signal from interference.In addition, there is a choice of warning priority, that is, I myself determine who will tell me about radars: a GPS informer based on coordinates in the database, or a radar detector that finds the direction of the radar radiation.Naturally, for such money, Playme TWICE is supplemented with very useful options that are not found in inexpensive models.For example, the so-called "smart mode", when the level of sensitivity to radar radiation is automatically adjusted depending on the speed of movement, or auto-mute warnings if you do not exceed the set speed.But most of all I liked the operation of the device with Avtodoria complexes.Have you heard this terrible word?"Avtodoriya" does not have a radar part, but photographs your car at the entrance and exit from a controlled area from several hundred meters to several kilometers.Then it calculates the average speed, and if it exceeds the allowable limit, a “photo hello” will be waiting for you in the mailbox.That is, only a device with a GPS module can cope with such a radar.But as it turned out, most radar detectors do not distinguish between "point of entry" and "point of exit", and the driver does not know exactly between which cameras to carefully monitor the average speed.And in general, driving, regularly looking at the speedometer, is not very comfortable, agree?But Playme TWICE not only distinguishes the beginning of the controlled section from its final point, but also independently calculates your average speed in the controlled section, highlighting it on the display.
HI3798MRBCV20100000 The display, by the way, is a separate issue.When I saw Playme TWICE for the first time, I thought that it was a “combine”, that is, a radar detector combined with a DVR, otherwise why would it need such a large and unusual display configuration.I even doubted the purchase, because "combines" are usually bulky and heavy, but in real life the device turned out to be much more compact than in the photographs.Of course, Playme TWICE does not have a DVR function, but the display format actually turned out to be quite convenient.And in general, the device gives the impression of a quality product: the buttons in the sockets do not hang out, the plastic does not crackle, the details fit exactly.Everything I like, so I recommend it.
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