Actually if you're "looking forward", there is an "obstacle" and it's called DECA.AntAltMike said:There is no theoretical obstacle to diplexing SWM and off-air, but DirecTV has determined that it simply doesn't want to incur the responsibility of supporting such installations.
You've just made a very good post showing why DirecTV doesn't support this.AntAltMike said:I didn't say DirecTV should offer to do the installation. I said it will work and that the customer may benefit from it.
Substitute "hypothetical" or "contingent" for "theoretical", if you will. The customer can get the benefit of single wire support by self-installing an SWiM and diplexing it with his off-air signal. I personally don't give a damn whether DirecTV is willing to "support" this installation. I am only concerned with accommodating the wants and needs of tvsportsman. If he wants to do this, it will work for him.
I have done a lot of installations in multiple dwelling units that DirecTV shuns. Sometimes I diplex DirecTV and off-air. Sometimes, I diplex SWM and cable, which is finicky because of the closeness of the SWM upstream signal and the cable company's return signal. Sometimes a cable TV technician making a service call just disables the DirecTV system without having any basis for doing so, other than the fact that he doesn't understand it. Then the customer is either coached by me over the phone to get all his services back or he pays me to reconnect him. All of thoise customers prefer that to not being able to get the TV services that they desire into their residential unit.
"And" what happens to the DECA when the signal gets bounced back with no attenuated?bobnielsen said:you could install a bandstop filter at the input to the receiver to block this.
The DECA is fairly "high power" [in the range of 0 dBm or more].bobnielsen said:Good point. I don't know what might happen, but a 10 dB attenuator would ensure that there was a decent match and sufficient loss to minimize any problems.