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Search: Posts Made By: rabbit73
Forum: Help With Reception 5-Dec-2017, 5:59 PM
Replies: 111
Views: 15,240
Posted By rabbit73
Reception will always be variable with your...

Reception will always be variable with your weakest signals and with the channels that are off-aim for your antenna.

Your goal should be for reliable reception of your strongest channels in all ...
Forum: Help With Reception 5-Dec-2017, 3:19 PM
Replies: 111
Views: 15,240
Posted By rabbit73
The 3414 is a distribution amplifier. It consists...

The 3414 is a distribution amplifier. It consists of an amplifier and a splitter in one case.

The amplifier has a gain of 15 dB, but the splitter section has a loss of 7 dB per outlet, so the net...
Forum: Help With Reception 4-Dec-2017, 7:41 PM
Replies: 111
Views: 15,240
Posted By rabbit73
That should have worked if the DB8e was connected...

That should have worked if the DB8e was connected to the UHF input of the RCA.

Try it without the 3414.

Time to make some voltage measurements.
Forum: Help With Reception 4-Dec-2017, 6:56 PM
Replies: 111
Views: 15,240
Posted By rabbit73
There are some voltage tests you can make on the...

There are some voltage tests you can make on the RCA preamp:

http://forum.tvfool.com/attachment.php?attachmentid=2996&d=1512417272
...
Forum: Help With Reception 4-Dec-2017, 6:41 PM
Replies: 111
Views: 15,240
Posted By rabbit73
The problem with the RCA preamp could be that it...

The problem with the RCA preamp could be that it is hooked up wrong, or it could be a bad preamp, or both. This is the hookup for the DB8e and the RCA preamp; it should work better than without the...
Forum: Help With Reception 4-Dec-2017, 2:38 AM
Replies: 111
Views: 15,240
Posted By rabbit73
That's nice, but can it do UHF and VHF with a...

That's nice, but can it do UHF and VHF with a preamp?
If your report is correct, you shouldn't be having trouble getting WTAE, even with the CM antenna and a preamp.

One disadvantage of the DB8e...
Forum: Help With Reception 4-Dec-2017, 2:32 AM
Replies: 111
Views: 15,240
Posted By rabbit73
The best solution I can think of for you if you...

The best solution I can think of for you if you want both directions for UHF and VHF to 3 TVs, is UHF and VHF antennas for both directions (or a UHF/VHF combo antenna for each direction) with a...
Forum: Help With Reception 4-Dec-2017, 2:10 AM
Replies: 111
Views: 15,240
Posted By rabbit73
Thank you for understanding. I'm trying to give...

Thank you for understanding. I'm trying to give you accurate advice.

Your CM antenna is for UHF and VHF. It should be OK for UHF and VHF from the SW with a preamp; isn't t?

I understand that...
Forum: Help With Reception 4-Dec-2017, 1:50 AM
Replies: 111
Views: 15,240
Posted By rabbit73
The 3414 is a good distribution amp. ...

The 3414 is a good distribution amp.

Probably not.

Which 3 leads; please be more specific.

Combining two antennas with a splitter in reverse if iffy; combining 3 is even more iffy.
...
Forum: Help With Reception 4-Dec-2017, 1:16 AM
Replies: 111
Views: 15,240
Posted By rabbit73
Both of those devices are wrong for combining a...

Both of those devices are wrong for combining a UHF antenna and a VHF antenna for the CM amp (which you didn't tell me the model). You need a UHF VHF Separator Joiner, UVSJ, AKA Diplexer.
...
Forum: Help With Reception 3-Dec-2017, 11:09 PM
Replies: 111
Views: 15,240
Posted By rabbit73
That is to be expected. The Polaroid isn't very...

That is to be expected. The Polaroid isn't very good for VHF.
You changed two things at once, so you can't be sure which one caused that result. You moved the antenna AND you added the preamp.

Is...
Forum: Help With Reception 3-Dec-2017, 1:50 AM
Replies: 111
Views: 15,240
Posted By rabbit73
It is possible to buy a UHF/VHF combo antenna for...

It is possible to buy a UHF/VHF combo antenna for the SE like your CM antenna, but it would be expensive.
Forum: Help With Reception 2-Dec-2017, 6:18 PM
Replies: 111
Views: 15,240
Posted By rabbit73
Your report indicates you should be able to get...

Your report indicates you should be able to get WTAE 51 with your CM antenna and a preamp. It is listed a being much stronger than WWCP. RabbitEars.info lists it as being stronger than KDKA at 25...
Forum: Help With Reception 2-Dec-2017, 3:31 PM
Replies: 111
Views: 15,240
Posted By rabbit73
Do you need Youngstown? ...

Do you need Youngstown?

http://forum.tvfool.com/attachment.php?attachmentid=2988&d=1512232193

Your report at 20 feet for reference:...
Forum: Help With Reception 2-Dec-2017, 3:21 AM
Replies: 111
Views: 15,240
Posted By rabbit73
I don't see WJAC on the UHF list. Which...

I don't see WJAC on the UHF list.

Which channel would the Polaroid antenna be for?
Forum: Help With Reception 2-Dec-2017, 3:09 AM
Replies: 111
Views: 15,240
Posted By rabbit73
The 6 channels: WTAE ABC, real channel 51,...

The 6 channels:

WTAE ABC, real channel 51, NM @ 20 ft 9.0 dB, 196 deg
WPXI NBC, 48, NM 15.1 dB, 216 deg
WPGH Fox, 43, NM 17.3 dB 218 deg
WPNT MyN/Comet, 42, NM 7.4 dB, 218 deg
WINP ION, 38, NM...
Forum: Help With Reception 2-Dec-2017, 2:03 AM
Replies: 111
Views: 15,240
Posted By rabbit73
Oh, I though you said the CM antenna would be for...

Oh, I though you said the CM antenna would be for VHF only.

What are the six channels you need, by call sign?

If 5 of the channels from the west are UHF and VHF, and the SE channel is UHF, then...
Forum: Help With Reception 2-Dec-2017, 2:01 AM
Replies: 111
Views: 15,240
Posted By rabbit73
I suggest it because a preamp at the Polaroid...

I suggest it because a preamp at the Polaroid antenna helps, so a preamp at the DB8e or the CM might help to make the signals stronger BEFORE they go down the coax.

The preamp can be mounted a...
Forum: Help With Reception 2-Dec-2017, 1:47 AM
Replies: 111
Views: 15,240
Posted By rabbit73
If you are using the Polaroid antenna for UHF...

If you are using the Polaroid antenna for UHF only, and the Channel Master for VHF only, you can combine the two antennas with a UVSJ after the Polaroid power supply, but before the splitter....
Forum: Help With Reception 2-Dec-2017, 1:12 AM
Replies: 111
Views: 15,240
Posted By rabbit73
Your Polaroid antenna has a built-in preamp. It...

Your Polaroid antenna has a built-in preamp. It is telling you that your Channel Master antenna needs a preamp up near the antenna.
...
Forum: Help With Reception 14-Sep-2017, 10:06 PM
Replies: 111
Views: 15,240
Posted By rabbit73
Can you give us a list of channels that are...

Can you give us a list of channels that are important to your wife so that we can see what direction they are in?

Here is a satellite image of your location with a 360 degree protractor to show...
Forum: Help With Reception 14-Sep-2017, 8:34 PM
Replies: 111
Views: 15,240
Posted By rabbit73
I understand. The change in reception could...

I understand.

The change in reception could be for more than one reason. The antenna might not be doing as well as when it was new and the trees are growing higher.
There is no need for you to...
Forum: Help With Reception 14-Sep-2017, 7:31 PM
Replies: 111
Views: 15,240
Posted By rabbit73
Yes, but you will not like it. The trees are...

Yes, but you will not like it.
The trees are growing.
Your antenna is very directional. If you aim it for the SW channels, the SE channels will be too weak. If you aim it for the SE channels, the...
Forum: Help With Reception 14-Sep-2017, 2:46 PM
Replies: 111
Views: 15,240
Posted By rabbit73
Yes, that is exactly what happens. The...

Yes, that is exactly what happens.

The tvfool software for a report doesn't know about the trees or other ground clutter; it uses changes in elevation along the signal path to predict what will...
Forum: Help With Reception 14-Sep-2017, 12:57 AM
Replies: 111
Views: 15,240
Posted By rabbit73
I tried different antenna heights, and it helps...

I tried different antenna heights, and it helps with some channels because of the rough terrain:

http://forum.tvfool.com/attachment.php?attachmentid=2882&stc=1&d=1505350619
Showing results 1 to 25 of 31

 

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