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fantomas21000

Motion detection too sensitive with AHD camera

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Hi all !

 

Before, I had an analog system with 540 TVL SONY cameras and chinese 8CH Full D1 DVR that was working fine.

 

I've just moved to AHD with :

 

8CH 4in1 DVR : https://fr.aliexpress.com/item/XM-Hisilion-Sensor-Four-in-One-4-Channel-1080P-960P-720P-960H-Coaxial-TVI-AHD-DVR/32690521883.html

 

4in1 AHD camera : https://fr.aliexpress.com/item/Outdoor-2-0MP-1080P-AHD-TVI-CVI-CVBS-CCTV-camera-4-in-1-Cameras-SONY-imx323/32734292665.html

 

When I use an old analog camera on my new DVR (in 960H mode), everything works fine as before.

 

But with the AHD camera in AHD mode, even with motion detection set to "lowest", I have false detection every about 10s.

 

I've noticed much interference on picture. So I have replaced the old chinese siamese thin cable by a "real" RG58 cable I was using for PC network. I don't have any RG59 cable. I still use power from the thin siamese cable.

I can't now see any interference on picture but I have still many false detections.

 

Cable is about 20m long.

 

Anyone could help me ?

I don't know what to do... I'm really lost...

 

The "test cam" is placed outside.

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