Home | Pricing | Company | Contact | Store
Digital Co-Channel Filter Model CF110
Digital Co-Channel Filter Model CF110
Description - PDF Spec Sheet

lntelvideo's Digital Co-Channel Filter Model CF110 is a state of the art signal processing system that significantly reduces co-channel interference, random noise and other video errors. It is particularly effective in reducing the 10 kHz and 20 kHz co-channel beats and restoring video synchronization even when the co-channel level is so high as to cause loss of vertical and horizontal sync in most television receivers. The Model CF110 reduces the 10 kHz and 20 kHz co-channel beats by up to 30 dB and other co-channel noise by up to 9 dB. Under extremely severe co-channel conditions the Model CF110 replaces the sync pulses with stable and clean sync.

The system takes analog NTSC color video signals and converts them to digital signals. All processing is then performed on the digital signal. Adaptive notch filters are used to suppress the 10 kHz and 20 kHz beats. The video is then analyzed pixel by pixel using multidimensional correlation techniques to differentiate between wanted video and co-channel interference.

When the circuits determine that a particular video pixel has noise perturbation or other errors, and the motion circuits determine that such perturbations are not due to motion, the pixel in error is appropriately corrected or the interference is further attenuated. All signal processing is performed on the composite color signal thus avoiding video impairments due to the color decoding and color re-encoding process.

Controls are provided to adjust the system's sensitivity to different levels of interference thus permitting optimal performance under all types of conditions.

The unit is fully self contained. It takes baseband NTSC color video signals IN and it outputs a processed NTSC color signal. Hardwire bypass occurs in the event of power loss.

Input: NTSC color video signal, 1 volt pp into 75 Ohms
Return loss > 40 dB
Output: NTSC color video signal, 1 volt pp into 75 Ohms
Return loss > 35 dB
Video Specifications:
Frequency Response: 0.5 dB to 4.5 MHz
Non-Linearity: < 2%
Differential Phase < 1 plus quantizing effect
Differential Gain: < 1% plus quantizing effect
K Factor with 2T Pulse: Better than 2%
System Delay: 2 TV lines
Temperature: 32 F to 110 F, Ambient
Humidity: 10% to 90% non-condensing
Height: 1.75"
Width: 19"
Length: 12"
Weight: 8 lbs.
Power: 90 - 240 volts AC, 50/60 Hz, 30 Watts
Specification subject to change without notice.
Xintekvideo Products
Transcoders & Converters
SDI-313 - Universal Transcoder
SDI-1 - D1 to NTSC Converter
SDI-3 - Analog to SDI Converter
SDI-110 - SDI to Analog Converter
SDI-310 - NTSC to D1 Converter
SDI-330 - Noise Reducer/SDI Converter
SDI-333 - Universal SDI Converter
Video Processors
INR 2000 - Impulse Noise Eliminator
INR ES - Impulse Noise Reducer
HQ 2000 - Picture Quality Restorer
CF110 - Co-Channel Filter
DP2000 - Drop-Out Corrector
Video Improvement Processors
VP10A - Random Noise Reducer
VP10C - Components Noise Reducer
SDI-10 - Random Noise Reducer
VP55A - Noise Reducer/Ghost Canceler
VP100 - Video Processor/Noise Reducer
VP900A - NTSC Color Corrector
VP900D - NTSC/PAL Color Corrector
VP1000 - Picture Quality Restorer
VP3000 - Pre-Compression Processor
HD-900M/950M - High Definition Color Corrector
SDI-900*-Color Corrector/Video Processor
Home | Pricing | Company | Contact | Store