this post was submitted on 11 Oct 2023
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They are terrible anti drone nipples then, considering you can easily find off the shelf drone RF antennas at the 400 MHz range easily, which is below 900 MHz. You can also easily find on the 5.8 GHz range.
Must be why drone attacks are so effective against Russia.
400MHz? you mean 430MHz-ish, which is near 70cm band?
i heard that Ukrainians are using 900MHz band for long range drones, that puts it near ISM band also used for LoRa and some other applications like this
What are the most common ones though? Jammers in UHF are shorter range than the VHF jammers, and so these would help with the network.
It also doesn't do you any good if you're trying to attack the tank and all you have is 1GHz+ drones. Equipment isn't made to deal with anything and everything, after all the radar isn't obsolete since it can't defend against an artillery shell.
433 MHz, 915 MHz and the "wi-fi ones", 2.4 Ghz and 5.8 GHz are the most frequent in off the shelf components
433 MHz is banned in Europe but allowed in the US.
915 MHz is banned in the US, but allowed in Europe.
The wi-fi bands (they don't go by that name, it's just most commonly known for that specific use) are allowed everywhere per international convention.
I'm just saying, they could have selected the jammers better.
there's also 3.4GHz band, rarely used, could collide with some radars
433MHz could interfere with some 70cm band radios, depending on how badly are all these baofengs misused
Of course, if you make your own drones from scratch, you can make them work on any part of spectrum, including what is normally advised against. There are tradeoffs to be done, but not all rules of electromagnetic compliance will be adhered to in wartime
I think if their jamming goes up to 3 GHz, the sidebands of the jammer might affect at 3.4 GHz too, but yeah, there is also that one.
The problem with making your own RF systems is that Ukraine would require a steady supply of RF components, which might be hard to secure in war time over off the shelf, which probably have stocked supply lines in most places, through hobbyists stores.
https://en.m.wikipedia.org/wiki/Counter-battery_radar