Channel Plus NF-470 Notch Filter, Blocks CATV 70-74
- If you want to use a modulator to view surveillance footage on a specific UHF or CATV channel from any television in your home, you’ll need access to one or more empty channels. If you can’t find an empty channel, you can block CATV channels 70-74 and off-air UHF TV channels 19-23, thus allowing modulators to insert a channel without interference. With this notch filter in place, you can create two modulated channels (71 & 73) on CATV and two channels (20 & 22) on UHF.
How it Works
Once installed on the incoming coax line, this device filters out channels to make room for modulated channels. In addition, the notch filter blocks the modulated signals from being broadcast back into the coax. Notch filters are also available that block CATV channels 64-70 and UHF 14-19 for 3 modulated channels and CATV channels 75-80 and UHF channels 24-29 for 2 modulated channels.
Manufacturer: Channel Plus Manufacturer Product No.: NF-470 UPC: 782644010989 Dimensions: 3.25″ L x 1 W” Blocks: CATV channels 70-74
UHF channels 19-23
Frequency Range: 499.25 MHz to 523.25 MHz Input: F-connector Output: F-connector Channel Insertion: TV channels 20 & 22
CATV channels 71 & 73