[mythtv-users] Coax splitters - how painful are they?

R. G. Newbury newbury at mandamus.org
Sun Sep 30 20:38:14 UTC 2007

Jay R. Ashworth wrote:
> On Fri, Sep 28, 2007 at 09:10:08PM +0000, R. G. Newbury wrote:
>> Well I DO NOT FEAR a visit from the FAA....it would be the DoT up here 
> Transport Canada, no?
>> Seriously, I want to combine a cable feed and an antenna through 
>> combiner, and feed one coax to the TV. Either feed alone is fine and I 
>> can switch them, but through a (cheap) combiner I get nothing watchable.
> Correct: you're going to get collisions.
>> Both signals have already been split: the cable coax to feed the 
>> mythbox, and the antenna has already been boosted (by a medium-cheap) 
>> amp, and split three ways, 2 of which feed the HDHR unit,
>> This may not be the best setup.. I do not know. I do suspect that I need 
>> better splitters than the el-cheapo's I had in the bottom of a box of junk.
>> Suggestions please.
> It's next to impossible to combine multiple wideband RF sources;
> you need a block converter to pull it off, and a lot of luck..
> Cable companies do it by pulling every channel down to baseband and
> then remodulate it to the channel you want it on, and feed it to a
> directional combiner tree.
> I'm thinking multiple tuner cards; why not?
As I just answered, multiple tuner cards is NOT the problem. The 'TV + 
WAF' equation is the problem.

Remotely controlled coax switch?  Serial port controlled? Cheap?


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