Linear Products Knowledge Base

Category » Audio And Video Distribution

There were 14 articles found in this category:

1. Names Do not Appear in the Display
   There may be times when Cardholders have been added and Directory entries created, but the names don’t appear on the display. This may happen if the person entering the data forgets to enter a phone number in the appropriate field. When entering data for a directory entry, you need to pl ...
2. One channel on my modulator is snowy
   This issue can be caused by a few things: 1. Be sure there's an empty channel on each side of a modulated channel. 2. If you disconnect the ANT/CATV Input and the modulated channel clears up, you need a filter – the filter removes cable system noise which degrades the picture quality. ...
3. Can you use 4, 6 and 8 ohm speakers on the same Encore hub?
   Yes, you can. Each keypad (Model ENC-DRS) serves as a speaker zone controller for the system. Each keypad contains a Class D digital stereo amplifier providing up to 60 watts maximum output power (30 watts per channel) and is designed to connect to a pair of 4, 6, or 8-ohm speakers. If you ne ...
4. What is the difference between a DA550 and a DA8200?
   The difference between a DA-550 Series Amplifiers and a DA-8200 Series amplifier is in the IR distribution method. The DA-550 Series uses a 12VDC IR method to distribute IR commands from an IR remote control and is a bi-directional IR system. The DA-8200 Series Amplifiers use a 5VDC IR metho ...
5. Why are my lower channels clearer than higher one's or vice versa?
   The following only applies for analog channels. With digital channels, you will have a clear picture, a clear picture with pixilation (missing bits in the image), or no picture at all. If your signal source is a CATV provider and thus they control all aspects of their signal, there are two rea ...
6. Can I insert modulated channels into a digital channel?
   Modulated channels cannot be inserted easily into a digital channel system because the modulated channels are analog. Attempting to insert just one modulated channel may cause the loss of up to 30 digital channels on a CATV system and several digital channels for an over-the-air broadcast dep ...
7. What is the difference between HHR and BID?
   "HHR" is the designation given to our distribution amplifiers designated for use with an Off-Air Antenna. They do not allow 2-way communications. "BID" is the designation given to our amplifiers designed for use with a CATV service because they allow 2-way communications between the CATV Servic ...
8. Why can't my cable boxes communicate back to my cable company?
   Your cable boxes are most likely connected to an amplifier that does not have bi-directional capability. If you still need assistance, you may e-mail us at video.audio@linearcorp.com. We will want to know the model or part number for all products you are using in your system. We will be a ...
9. How do I add a camera feed to my satellite system?
   For a single Satellite Dish with one down-feed to one Satellite Receiver, you will need a Modulator and two V902 Diplexers. The following steps will provide guidance to insert a modulated channel. 1. Program the modulator to the desired UHF analog TV channel or channels and connect the output ...
10. Why are my cable channels snowy?
    The cable channels may appear snowy for several reasons. 1. The incoming cable channel may be weak or poor quality when it reaches your house. (A signal can be measured as a strong signal on a meter but still be snowy if the original signal is weak or has noise.) 2. The incoming CATV signal may ...
11. How do I add a camera feed to my cable system?
    The answer to this question will depend on your Cable Service Provider, the channels and services you receive, the strength of the incoming signal from the Cable Service provider, your internal home wiring and distribution, and the inputs available on your TVs. At minimum, you will need a Modula ...
12. I have a camera feed I want to incorporate with my satellite system. What kind of filter do I need?
    You will not need a filter to incorporate video from a camera into your satellite system unless you are using an Off-Air antenna or Cable Television (CATV) in your system. A Channel Plus Modulator and two V902 Diplexers will be required for a basic single receiver system. If a Multi-switch is us ...
13. Why are my modulator channels snowy?
    The modulator channels may appear snowy for several reasons. 1.There may be a conflicting signal on the same channels coming from another source such as an Off-Air signal from an antenna or a CATV (Cable Television) signal. 2.There may be a signal coming from another source that is stronger than ...
14. I have a camera feed I want to incorporate with my cable system. What kind of filter do I need?
    The type of filter will be determined by the analog channel on which you wish to insert the modulated video from the camera. The filter will need to block the frequencies for the channel on which you wish to insert the modulated channel, one channel lower, and one channel higher to prevent inter ...