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Waveguide attenuation
AHD, HD-CVI, HD-TVI, PAL VANDALPROOF CAMERA GT-CH21V3-28VF - 1080p 2.8 ... 12 mm GEMINI TECHNOLOGY
DESCRIPTION Megapixel camera with 1/2.9" CMOS sensor and AHD / HD-CVI / HD-TVI / PAL.
The AHD / HD-CVI / HD-TVI interface allows to transmission of analog video signal via coaxial cable in 1080p resolution. It enables the transmission of HD resolution images for even 500 m distance with keeping the low costs of the installation. During transmission there are no delays and is maintained the original, high quality image.
In the case of video transmission using a twisted pair cable and matching transformers (balun), be aware of the possibility of signal reflections and interfering signals.
Setting the camera in PAL mode allows to obtain an image in 960H resolution. The appropriate signal format selection is done by tilting and holding the joystick for 5 s without entering to the OSD menu. Changing the signal to the NTSC in the camera causes loss of image in connected AHD recorder.
SPECIFICATION
Standard :
AHD , HD-CVI , HD-TVI , PAL
Sensor :
1/2.9 " Sony CMOS IMX322
Digital Image Processor :
Nextchip NVP2441H
Matrix size :
2.1 Mpx
Resolution :
1920 x 1080 - 1080p , AHD-H , HD-CVI , HD-TVI , 960 x 576 - 960H , PAL
Range of IR illumination :
30 m
IR illuminator power adjustment :
Automatic
Lens :
2.8 ... 12 mm, 2 Mpx
View angle :
83 ° ... 23 ° (manufacturer data) 96 ° ... 33 ° (our tests result)
S/N ratio :
> 50 dB
Video output :
1 Vpp 75 Ω, AHD / HD-CVI / HD-TVI / PAL - selectable by switch
Main features :
Sense-UP - (Slow Shutter) - Increase the sensor sensitivity max. x 30 D-WDR - Wide Dynamic Range 2D-DNR / 3D-DNR - Digital Noise Reduction F-DNR (Defog) - Reduction of image noise caused by precipitation ICR - Movable InfraRed filter Motion Detection - max. 4 zones Privacy zones - max. 4 Day/Night mode (color/b&w/auto) WB - White Balance (ATW/AWB/manual/indoor/outdoor) BLC - configurable Back Light Compensation HSBLC - High Light Compensation (spot) Mirror - Mirror image image "freeze" Sharpness - sharper image outlines Monitor type correction - LCD/CRT
OSD menu :
Power supply :
12 V DC / 290 mA
Power consumption :
≤ 3.5 W
Housing :
Dome - Metal
Color :
Graphite
Vandal-proof :
"Index of Protection" :
IP66
Operation temp :
-20 °C ... 60 °C
Weight :
0.67 kg
Dimensions :
Ø 119 x 84 mm
Supported languages :
English, Chinese Traditional, Chinese Simplified, French, Spanish, Dutch, German, Polish, Portuguese, Russian, Turkish, Italian
Manufacturer / Brand :
GEMINI TECHNOLOGY
Guarantee :
2 years
PRESENTATION
Camera is out from clamping ring (the OSD menu controller visible):
The appropriate signal format selection is done by tilting and holding the joystick for 5 s without entering to the OSD menu. Changing the signal to the NTSC in the camera causes loss of image in connected AHD recorder:
The previous version of the camera:
OUR TESTS
Camera image at artificial illumination (about 30Lux):
Camera image at night conditions with internal built-in IR illuminator on:
Camera image at direct strong light opposite to camera:
Camera image at artificial illumination (about 30Lux):
Camera image at night conditions with internal built-in IR illuminator on:
Camera image at direct strong light opposite to camera:
Camera image at artificial illumination (about 30Lux):
Camera image at night conditions with internal built-in IR illuminator on:
Camera image at direct strong light opposite to camera:
FILES
OSD menu screenshots EN
2 MB
PACKAGE Dimensions (L x W x H): 135x135x135 mm Package: Carton Gross Weight: 0.814 kg
COMPONENTS OF WORKING WITH: GT-CH21V3-28VF
Net: 0.00 USD
Gross: 0.00 USD
Weight: 0.00 kg
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