Originally Posted by Floydage
Terminations might give a little better performance but nothing huge unless you're seeing noise in your picture. Reducing the number of splits would be bigger if some outputs are unused.
I may be getting confused as to your setup (a picture's worth a thousand words
). I envision an antenna cable to your living room and another to your basement. The basement one you split to run two cables up to upstairs bedrooms.
Since we don't know if the two antenna cables are seperate outputs from a distribution amp (i.e. could be one cable that's split after the amp) then the best thing to do is to treat as a black box - unknown between the antenna and wall outlets (living room and basement). I think you said you had a 12" TV, so maybe take it to the basement with a converter box and compare the signal strength to that of the living room. Use the same converter box for both rooms, connect without any splitters, and measure at several frequencies (low, mid, high).
I have one lead going down through my attic from the MATV (Master Antenna)... somewhere that is split within the walls.... I have a coax outlet in my living room for one... & the other was hanging coax in the basement. So it is split somewhere within the dwelling.
I can see other leads passing through my attic for other units, however not knowing who is using what I keep my hands off, so the distribution amp if there is one (for some reason though I don't think there is), is likely inside the attic of the dewelling closest to the antenna.
The cable company ran a seperate outlet to the Living room for cable for the previous owner. I also had that unused lead in the basement (I have this hooked to the splitter now for my stereo receiver)... this is how they should install cable.. not hack up existing wiring as I will mention later.
I also ran another outlet to the other side of the living room & 3 more in the basement. These 4 lines are variable & end at my splitter but are not attached. If & when I need these I can attach them, they are color coded. I suppose if the next owner wants cable he could feed off these too.
Usually when the Cable company came into a dwelling, they sliced up all the antenna connections & outlets in the living rooms to make them cable only & rendering the antenna unusable... not so in this case, & I checked this before I bought the place.... to make sure I didn't have the un-needed expense of a cable bill... figuring evey dollar may count some day & this would be a savings.
Originally Posted by Floydage
RF 8 is upper VHF so it sounds like your attic antenna is more for UHF. RF 8 needs the big element(s) like you see on big outdoor antennas. Now if you have a big one then it could be a flaky element(s) like you said, a bad connection where the VHF and UHF sections combine (or along the VHF elements), or the combining piece if it has one. Of course I'm just guessing at the antenna based on what I have (Yagi Uda v-shaped thing with a seperate UHF section). Also, make sure the amp is rated for VHF (might try bypassing it).
One of the large elements on that attic antenna is busted (came off of dads roof), although I had an RF3, 5 & 8 at the time it all seemed to work, I didn't worry about it. Now we only have an RF 7, 8, & 10 now. 7 is the repeater for TBN & is so weak I dont consider it, rf 10 comes in fair (60-70%), but about a year & a half ago , the signal from 8 eroded from 70-80% down to 10-20% over the period of a couple weeks. This only happened on my attic antenna & not on my outdoor antenna. I was thinking sound barrier construction several miles away may had affected it.... only variable I can think of, though the antenna is hard to get to now I really should consider going up there & looking... I'm not as young as I once was though. I would think the mid length elements would be used for RF 8
The good possible news is that RF 8 plans to return to it's pre DTV transition allocation of RF 31 (though remaining on virtual 8). Dunno when that will happen, sometime perhps before the summer.
I would really like to lop off the broken elements & properly mount that attic antenna... may be OK since we do not have low VHF here anymore.
BTW my pre digital analog signals were always very good for all channels on my outdoor antenna.
For the attic antenna, not quite as good, though 8 was my strongest channel & near perfect.