Antenna Changes

spec1alk

Thread Starter
SatelliteGuys Family
Sep 6, 2008
52
2
All, I really appreciate the input and responses. However, I still have some questions. Please humor my ignorance.

1) What is the difference between an amplifier and a preamplifier? Or are they the same thing?

2) since the powered splitter didn’t fix my issue, should I send it back and try something else? Or is it still good to have?

3) It has been suggested to add an amp/preamp or replace the antenna. These are similar in cost, is there a general consensus on which would be more effective?

4) if I replace the antenna, I would like to avoid changing my mount. I bought a 39” wine guard pole mentioned earlier in the post. The mount is on the side of the house and is angled 45 degrees up with the elbow at the antenna end. I can take a pic if needed. If I should swap antennas, I would prefer one that will mount on that mast as-is, so it can’t be terribly wide.

5) if I go with amp, I would like one that I can put at antenna but put the power source at my cable box. Is this possible? My cables are run in the wall and I would like to avoid more wires on my house. It’s likely about 35-50’ of cable in wall.
 
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charlesrshell

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Jan 14, 2006
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O'Fallon, IL
All, I really appreciate the input and responses. However, I still have some questions. Please humor my ignorance.

1) What is the difference between an amplifier and a preamplifier? Or are they the same thing?

2) since the powered splitter didn’t fix my issue, should I send it back and try something else? Or is it still good to have?

3) It has been suggested to add an amp/preamp or replace the antenna. These are similar in cost, is there a general consensus on which would be more effective?

4) if I replace the antenna, I would like to avoid changing my mount. I bought a 39” wine guard pole mentioned earlier in the post. The mount is on the side of the house and is angled 45 degrees up with the elbow at the antenna end. I can take a pic if needed. If I should swap antennas, I would prefer one that will mount on that mast as-is, so it can’t be terribly wide.

5) if I go with amp, I would like one that I can put at antenna but put the power source at my cable box. Is this possible? My cables are run in the wall and I would like to avoid more wires on my house. It’s likely about 35-50’ of cable in wall.
Pics are always nice to post for SatGuy members to help with questions.
 
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spec1alk

Thread Starter
SatelliteGuys Family
Sep 6, 2008
52
2
I forgot to mention, not sure if it makes a difference, but all of my channels are broadcast from the same location. There are 4 transmitters, it’s just one of them is much less power than the others:
KBZK - channel 13: 1.8 kW + 10.21 dB gain = 18.9 kW ERP
KUSM - channel 8: 1.8 kW + 9.98 dB gain = 17.9 kW ERP
KDBZ - channel 29: 0.656 kW + 13.59 dB gain = 15 kW ERP
KWYB - channel 28: 0.5 kW + 13.77 dB gain = 11.9 kW ERP
 

Larry1

SatelliteGuys Pro
Aug 24, 2005
1,559
105
Port Hope, ON Canada
It may help if you could get your antenna closer to the peak of the roof. Trees and buildings will reduce the signal and can cause reflections. In general, TV signals are line of sight. Anything blocking the line of sight will reduce the signal.
You could try connecting a piece of coax to the cable with a barrel connector to extend the cable and move the antenna around to see what benefit of moving it to other locations will give before permanently moving it.
 
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907TECH

SatelliteGuys Guru
Aug 29, 2018
139
176
Alaska
You are trying to pick up a low power station with an antenna that has very low gain on UHF. You look to be maybe about 10 feet high. A preamp added to it MAY solve your problem, but that is a very small antenna with low gain, at low height. Since you are overall happy with it, I would add a preamp and see what happens. The worst that will happen is you will still need an antenna with more UHF gain. More height (above the peak of the roof) may be enough to fix the problem also. Are you sure you are not missing out on many other towers?
 
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spec1alk

Thread Starter
SatelliteGuys Family
Sep 6, 2008
52
2
I live in a rural area. There are some other towers, but they are far away and difficult to pull in. See my rabbit ears from first post.

I will try the preamp to see what happens. I would like to avoid moving the antenna as my roof is really high (25-30’) and still may not provide me with line of sight.

Is their an antenna with higher gain I should try? I don’t mind replacing the antenna, but don’t know what I should be looking for.

You are trying to pick up a low power station with an antenna that has very low gain on UHF. You look to be maybe about 10 feet high. A preamp added to it MAY solve your problem, but that is a very small antenna with low gain, at low height. Since you are overall happy with it, I would add a preamp and see what happens. The worst that will happen is you will still need an antenna with more UHF gain. More height (above the peak of the roof) may be enough to fix the problem also. Are you sure you are not missing out on many other towers?
 

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