Jamming frequencies nobody uses is a waste of electricity, which is in short supply at the front line. If you spead noise over a wide range of frequencies, not enough of it will fall into receiver's bandwidth to make a difference. Especially when the receiver is on the other side of the no-man's land.
Modern jammers monitor very wide band, detect enemy transmission signatures, then transmit noise on that specific frequency. Sometimes even transmit disarm commands or retransmit previously received and recorded commands. If they record a frame sent when the drone was disarmed, then replay it to the armed drone once it's airborn, the drone disarms and falls out of the sky.
I reacted to "1.4GHz for video link and control", which is not very typical. But GPS is a good target to jam, especially given highlights away from the frontline.
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timeasmymeasure
no subject
Date: 2025-05-08 05:55 pm (UTC)no subject
Date: 2025-05-08 07:49 pm (UTC)Jamming frequencies nobody uses is a waste of electricity, which is in short supply at the front line. If you spead noise over a wide range of frequencies, not enough of it will fall into receiver's bandwidth to make a difference. Especially when the receiver is on the other side of the no-man's land.
Modern jammers monitor very wide band, detect enemy transmission signatures, then transmit noise on that specific frequency. Sometimes even transmit disarm commands or retransmit previously received and recorded commands. If they record a frame sent when the drone was disarmed, then replay it to the armed drone once it's airborn, the drone disarms and falls out of the sky.
no subject
Date: 2025-05-08 08:21 pm (UTC)I reacted to "1.4GHz for video link and control", which is not very typical. But GPS is a good target to jam, especially given highlights away from the frontline.
no subject
Date: 2025-05-08 08:00 pm (UTC)You don't need to go to space for that. Scrape frequencies of video transmitters sold on Alibaba and you'll get that distribution.