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Replace power injector with a good preamp?

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Old 03-11-2009, 07:06 AM   #1
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Default Replace power injector with a good preamp?

I bought the Terk HDTVO antenna before doing much research (yes stupid mistake). I bought it online so I'm pretty much stuck with it and would really like to avoid replacing it with another antenna if at all possible.

The antenna is currently installed in my attic. I am not opposed to mounting it on the roof and that's actually what I was going to do but I wanted to test it in my attic first. I hooked it up to my tv tuner card in my computer and I get all the channels I want except for one VHF channel which is a must channel. I then tried it hooked up directly into my TV and I get all the channels including the same VHF channel on my TV. The signal strength on my TV for this VHF channel is only 60% but the picture is crystal clear and I haven't noticed any drops or anything.

I was wondering why I couldn't pick up this channel on my tv tuner card on my pc and found out the card actually splits the signal internally into two for dual recording. I believe this split reduces the signal enough to the point where I can't see the channel on my computer. So I asked my Dad if he had any advice and he recommended a stronger amplifier. Now I'm new to amps/preamps/power injectors etc so this is where my main question lies:
The HDTVO has a power injector that I am currently using and without it I can't receive crap. Can I replace this power injector with another power injector I buy? Can I add a preamp like the channel master 7777 to the line instead of the power injector? It's my understanding that a amplifier has two parts:
1. The preamp - near the actual antenna
and
2. The power injector
I only see the power injector on the HDTVO. Does the HDTVO have a preamp installed internally? If so can I put a stronger power injector at the other end and will it work with the built-in preamp? Or could I insert a regular amplifier into the mix as well after the power injector?

Alternatively should moving the antenna up to the roof solve my VHF channel problem?

I am about 35 miles from towers and need UHF and VHF-high reception.

Sorry for the long post but I wanted to give as much info as I could. Any advice would be greatly appreciated. Thanks!!
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Old 03-12-2009, 05:45 AM   #2
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Quote:
Originally Posted by kevindanielbro View Post
I bought the Terk HDTVO antenna before doing much research (yes stupid mistake). I bought it online so I'm pretty much stuck with it and would really like to avoid replacing it with another antenna if at all possible.

The antenna is currently installed in my attic. I am not opposed to mounting it on the roof and that's actually what I was going to do but I wanted to test it in my attic first. I hooked it up to my tv tuner card in my computer and I get all the channels I want except for one VHF channel which is a must channel. I then tried it hooked up directly into my TV and I get all the channels including the same VHF channel on my TV. The signal strength on my TV for this VHF channel is only 60% but the picture is crystal clear and I haven't noticed any drops or anything.

I was wondering why I couldn't pick up this channel on my tv tuner card on my pc and found out the card actually splits the signal internally into two for dual recording. I believe this split reduces the signal enough to the point where I can't see the channel on my computer. So I asked my Dad if he had any advice and he recommended a stronger amplifier. Now I'm new to amps/preamps/power injectors etc so this is where my main question lies:
The HDTVO has a power injector that I am currently using and without it I can't receive crap. Can I replace this power injector with another power injector I buy? Can I add a preamp like the channel master 7777 to the line instead of the power injector? It's my understanding that a amplifier has two parts:
1. The preamp - near the actual antenna
and
2. The power injector
I only see the power injector on the HDTVO. Does the HDTVO have a preamp installed internally? If so can I put a stronger power injector at the other end and will it work with the built-in preamp? Or could I insert a regular amplifier into the mix as well after the power injector?

Alternatively should moving the antenna up to the roof solve my VHF channel problem?

I am about 35 miles from towers and need UHF and VHF-high reception.

Sorry for the long post but I wanted to give as much info as I could. Any advice would be greatly appreciated. Thanks!!
The power injector is for power to the preamp inside the antenna,no other power injector will help. Your best bet is move antenna outside, make sure you point it in the right direction.
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Old 03-12-2009, 07:52 AM   #3
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After following oljim's advise if you still can't get a strong enough signal, you could get a distribution amp down at the TV/PC. Distribution amps are low gain amps that will make up for splitter losses. See: Are you having OTA Signal Problems?
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Old 03-12-2009, 09:22 AM   #4
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Terk sells that antenna as a UHF antenna with no mention of VHF.

That may be the problem.
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Old 03-16-2009, 09:41 AM   #5
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I have that antenna also and it has an amp, not a power injector...and it is VHF also. It works great for me but I'm 0nly about 6 miles from towers
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