Originally Posted by fbov
Before adding a dist amp, you have a few loose ends to attend to. The first is the unterminated feed out of the 4-way splitter. This causes reflections within your line, your own multi-path signal source, and that's how a 100% signal may not come in.
Next, see if all those splits is the problem. Each pair costs 3-4dB, and the quad is 6-8dB. Run a single, unsplit line to your closest TV and see if reception issues go away. If so, a distribution amp at the quad splitter location should take care of you.
But first, terminate those open lines!
Originally Posted by mrow2
I have some thoughts about this, as I've experimented a lot even though I have some of my own issues I've posted here. I would not waste this precious signal on two FM receivers. Each time you split, you diminish. This is way too much antenna for an FM set but it probably means putting up a separate omni-directional or directional (depending on your station locations) on the roof and running a sep. cable down so that you can distribute to those, if you must have all the FM stations. For any FM set that is high, maybe you can just use a simple indoor dipole. Alternatively, you can boost the signal and maybe this would be advisable. Investigate the boosters and decide which is best - antenna located or inside, guess both have some advantages. My booster has a variable gain control and I do recommend this since an over boosted signal can be noisy. I had splitters for my VCRs because I didn't want to fool with the TV/VCR switches on the units. But this weakened the signals to all the sets so there really is a price to be paid for that. I am gradually doing away with VCR splitters and trying to keep the signals going to TVs and converters only. i was able to visibly reduce noise by removing just one splitter, in one problem area.
Originally Posted by Rick0725
To split the signal to the fm receivers use a winegard ca8800 tv/fm splitter instead of a standard splitter off the combo antenna. Insertion loss is only .4 db.
Put an RF terminator on the unused splitter port. And, connected 3rd feed to an analog TV. These two step made it possible to watch Philly 29 during the afternoon, which was not possible before. Terminated those open lines! I also connected one D2A converter box to the main feed and did not see any appreciable difference in signal strength compared to 4-way splitter reception.
Sniffed reception from Ch 27 in Harrisburg. A good sign for post transition. I want to be able to get the CBS affiliate for greater NFL variety.
Called the installer, requested changing out the 4-way splitter for a 3-way. The 3-way splitter was my original request. Going to have to wait a few days for that change. Going to pick up a couple of Db's there.
Did not split the signal for FM, yet. I can live with a little indoor antenna that picks up the local FM stations. (Does hurt a little not to be able to use the outdoor antenna, but I'll live.)
The Winegard CA8800 splitter looks like it costs nearly as much as a 3-way distribution amp. Is that the preferred course of action, because a distribution amp may generate too much signal from some stations?
What does it mean when the signal strength rapidly cycles from 0 to 50%? Is that caused by multi-path?