I recently installed the MyHD 120 HDTV card and daughterboard in my main computer. I've had two rooftop antennas for years, although one's lousy, so I'm looking to upgrade it. The other's pretty OK, I think, a Winegard Chromstar II directional ("anti-ghosting"). The MyHD card, thankfully, has two antenna inputs. I will have both antenna cables split once to send signals to an analog TV in another room.
I have three questions:
1. What kind of splitters should I be using?
2. What do I need in a balun?
3. What kind of cable do I want to buy?
Some more details:
The Winegard Chromstar II seems to work OK like it is. I'm removing the other antenna and am going to try to replace it with an antenna I found a couple weeks ago. I noticed this thing while skating to my workout, it was there on the way home and I snagged it. It looks almost exactly like the 3016
on this page
at the Channel Master website. Mine's a bit longer than the 3016, so I guess it's an older model (the 3016 is 66" and mine's 70"). There was a 9 foot mast too, and I took it home as well. I had no idea why they were throwing it out, but when I put my multimeter to it, I think I found out why. There was no conductivity between a lot of the elements where I figure there should be. I'm not sure it's necessary, but I assume that an antenna to function correctly has to have continuity except where specifically prevented (i.e. by insulators). I fixed those continuity problems, which included non-continuity from the balun to the connections!
Well, I figured I was about ready to mount this thing, but I tested continuity between two mutually insulated parts of the antenna and found continuity! That would be a problem, it seems. It turns out that the balun itself was responsible for that.
So, question is: Is a balun supposed to have continuity between the leads? I have 4-5 baluns lieing around and I checked them all, and every one but one also tested as having continuity between the leads! That would seem to be wrong, but 4/5 do, so I guess maybe it's not wrong.
Well, should I get another balun? What do I need in a balun? I'm going to be using the antenna for HDTV, DTV and analog TV, and my priority is in that order.
1. What kind of splitters should I be using? I see all kinds of splitters for sale and it's confusing. For instance, at Home Depot they had a couple:
5 MHz - 2.3 GHz (Ideal, the Mnfg.) $7 "Satellite & Digital"
40-2151 MHz Diplexer (RCA), $10
If I go to Radio Shack, what should I look for?
2. What do I need in a balun?
Again, what would I look for at Radio Shack, or can I just use the balun that was already on the Channel Master or maybe one of my others? I have 300-75 ohm, 75-75 ohm. Someone said I should get a UHF balun. He said some baluns have as much as 6 db signal loss and that I should get a good one. Would that also work for VHF stations? Now, I assume that the balun already on this antenna will work for UHF and VHF, and I gather from the design of this thing that it IS designed for both UHF and VHF. Of course, I don't know if it's working up to spec.
3. What kind of cable do I want to buy? I want to replace the old RG59 that's on the antenna I'm replacing as well as its splitter. I figure RG6, but do I want quad shield or not? Also, is copper clad steel core OK or should I hold out for solid copper core? The solid copper is harder to find, at least they don't have it at my local Home Depots.