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OKO-3 Video Signal FPV Detector: Three-Band Monitoring and Early Detection
In modern warfare, analog FPV drones remain one of the main threats. Most detectors respond to control signals, but the OKO-3 detector works on a different principle — it intercepts the drone's video signal. This makes it possible to detect UAVs even in cases where control frequencies are non-standard or protected. OKO-3 — This is a professional electronic intelligence (SIGINT) tool that detects threats in three key frequency ranges: 1.2 GHz, 3.3 GHz, and 5.8 GHz.
Advantages of the OKO-3 video signal detector
The main advantage of the system is its ability to "see" the radiation from a drone's video transmitter at a distance of over 1,200 meters. This gives the unit valuable time to camouflage, hide, or activate electronic warfare assets.
- Three operating ranges: Full coverage of 1.2 GHz (long-range flights), 3.3 GHz (new frequencies), and 5.8 GHz (mass FPV) frequencies.
- Informative IPS display: Displays frequency in MHz, RSSI level (signal strength), and FPV detection indicator in real time.
- Intelligent filtering: Harmonic pass-through and spurious signal rejection functions minimize false alarms.
- Flexibility of settings: Switch between automatic air scanning and manual tuning to a specific frequency.
Technical and tactical characteristics (TTX) of the OKO-3
The device is designed to operate in the field, has intuitive control using tactile buttons that are easy to use even with gloves.
| Parameter | Value / Characteristic |
|---|---|
| Type of detected signals | Analog FPV (video signal) |
| Main ranges | 1.2 GHz / 3.3 GHz / 5.8 GHz |
| Scan zones | 1000-2050 MHz | 2300-3990 MHz | 4990-6200 MHz |
| Detection distance | From 1000-1200 meters and more |
| Operating modes | Auto scanning / Manual tuning |
| Data display | Frequency (MHz), RSSI, FPV indicator, active zone |
| Calibration | Manual RSSI calibration (ABOUT menu) |
| Controls | Five-button joystick (Up/Down/Left/Right/OK) |
Functionality and scanning modes
The OKO-3 detector can be adapted to a specific combat mission thanks to its expanded menu functionality:
- Automatic mode: The device cyclically scans the selected zones. When a video signal is detected, the FPV indicator appears on the screen, indicating the immediate proximity of the UAV.
- Manual setting: Allows you to "hook" for a specific frequency to accurately determine the direction or analyze the stability of the signal.
- Skipping harmonics and signals: An important function for working in dense radio conditions or when using your own electronic warfare equipment, allowing you to cut off unnecessary noise.
- Auto return: After analyzing a specific frequency, the device automatically returns to the general scanning mode.
Important feature: The ability to manually calibrate RSSI allows the operator to adjust the device to the current radiation background of the area, which significantly improves detection accuracy and reduces the likelihood of missing a target.
Why is the OKO-3 necessary at every position?
Unlike broadband scanners, the OKO-3 is highly specialized in intercepting video. This makes it extremely effective against kamikaze drones, which activate their video transmitters long before entering the kill zone. Its compact size, ability to operate while charging, and wide frequency coverage (from 1 GHz to 6.0 GHz)2 GHz) make it a universal tool for tactical reconnaissance.
FAQ: 6 questions about the OKO-3 video signal detector
How is the OKO-3 better than detectors that look for control signals?
Control signals can be intermittent or hidden. But the video transmitter (VTX) operates continuously and at high power so that the drone operator can see the picture. The OKO-3 records this stable radiation stream, providing more reliable detection.
Does the device detect digital video links (DJI O3, Walksnail)?
The device is optimized for analog signals, but also detects "digital" as characteristic noise. The detection range of digital systems may be slightly shorter than that of analog systems due to the peculiarities of signal modulation.
Does OKO-3 respond to Wi-Fi routers?
Yes, since the frequencies match. However, the built-in filters are trained to recognize the structure of the UAV video signal, which helps minimize false alarms in an urban environment.
Is it possible to determine the direction of the drone?
The base antenna is omnidirectional. The "shielding" effect can be used to find the direction with your body or connect a directional antenna to a standard SMA connector.
At what distance does it see an FPV kamikaze?
The average detection range of a transmitter with a power of up to 2.5 W is 1.2-1.8 km. This gives more than a minute of time to prepare for defense before the drone actually approaches.
Does electronic warfare interfere with this detector?
An operating electronic warfare dome inevitably "blinds" any detector. The correct algorithm: monitoring the airwaves with OKO-3 → detecting a threat → turning on electronic warfare to suppress the signal.
Does the device detect digital video links (DJI O3, Walksnail)?
The device is optimized for analog signals, but also sees "digital" as characteristic noise. The detection distance of digital systems may be slightly shorter than analog ones due to the peculiarities of signal modulation.
Does the OKO-3 respond to Wi-Fi routers?
Yes, since the frequencies match. However, the built-in filters are trained to recognize the structure of the UAV video signal, which helps minimize false alarms in an urban environment.
Is it possible to determine the direction of the drone?
The base antenna is Omnidirectional. To find the direction, you can use the "shielding" effect of your body or connect a directional antenna to a standard SMA connector.
At what distance does it see an FPV kamikaze?
The average detection range of a transmitter with a power of up to 2.5 W is 1.2-1.8 km. This gives more than a minute of time to prepare for defense before the drone actually approaches.
Does electronic warfare interfere with this detector?
An operating electronic warfare dome inevitably "blinds" any detector. The correct algorithm: monitoring the airwaves with the OKO-3; threat detection; Enabling electronic warfare to suppress the signal.
Does the device detect digital video links (DJI O3, Walksnail)?
The device is optimized for analog signals, but also sees "digital" as characteristic noise. The detection distance of digital systems may be slightly shorter than analog ones due to the peculiarities of signal modulation.
Does the OKO-3 respond to Wi-Fi routers?
Yes, since the frequencies match. However, the built-in filters are trained to recognize the structure of the UAV video signal, which helps minimize false alarms in an urban environment.
Is it possible to determine the direction of the drone?
The base antenna is Omnidirectional. To find the direction, you can use the "shielding" effect of your body or connect a directional antenna to a standard SMA connector.
At what distance does it see an FPV kamikaze?
The average detection range of a transmitter with a power of up to 2.5 W is 1.2-1.8 km. This gives more than a minute of time to prepare for defense before the drone actually approaches.
Does electronic warfare interfere with this detector?
An operating electronic warfare dome inevitably "blinds" any detector. The correct algorithm: monitoring the airwaves with the OKO-3; threat detection; Enabling electronic warfare to suppress the signal.
At what distance does it see an FPV kamikaze?
The average detection range of a transmitter with a power of up to 2.5 W is 1.2-1.8 km. This gives more than a minute of time to prepare for defense before the drone actually approaches.
Does electronic warfare interfere with this detector?
An operating electronic warfare dome inevitably "blinds" any detector. The correct algorithm: monitoring the airwaves with the OKO-3 → detecting a threat → activating electronic warfare to suppress the signal.
At what distance does it see an FPV kamikaze?
The average detection range of a transmitter with a power of up to 2.5 W is 1.2-1.8 km. This gives more than a minute of time to prepare for defense before the drone actually approaches.
Does electronic warfare interfere with this detector?
An operating electronic warfare dome inevitably "blinds" any detector. The correct algorithm: monitoring the airwaves with the OKO-3 → detecting a threat → activating electronic warfare to suppress the signal.