El System SU

radiation pattern

antique

spatial.

225

225

vertical

horizontal

Figure 3 – Directional diagram of the KS5-800/2700 SMA antenna

Operating principle

The standard interface of the detector has been supplemented with a signal presence notification, a list of scanned bands (the current scanned band is highlighted in yellow) and information on the presence (+ sign, the band is highlighted in red) or absence (- sign, the band is highlighted in green) of UAV signals, calibration modes (CALIBRATION), reset (RESET), increased sensitivity (SENSITIVITY), display shutdown (SLEEP), sound (SOUND), FPV and factory mode (STANDART). Movement through the bands and items is performed by pressing the control key left and right.

Strip mode (Figure 4). Scanning is performed alternately in the following

current bands:

1) 100-900 MHz

5) 3200-3800 MHz

6) 4900-5300 MHz

2) 900-1400 MHz

7) 5350-5700 MHz

3) 1900-2200 MHz

8) 5700-6200 MHz

Scanning of one strip is performed for a time of up to 1100 ms and is repeated 10

times. The scanning results are summarized and saved. When a

the last scan then the result is analyzed for the presence of signals (threshold

min. value +15 dB from the noise level, with SENSITIVITY turned off +20 dB), original

the band is divided into smaller bands of approximately 4 MHz width and if it

the signal is 50%, then a conclusion is made about the presence of a signal (UAV). The appearance

the UAV inscription appears and the bar in the list turns red if the signal is not

4) 2200-2700 MHz