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Search: Posts Made By: rabbit73
Forum: Help With Reception 22-Mar-2019, 3:13 PM
Replies: 37
Views: 12,076
Posted By rabbit73
No tweaks are needed, Ken; it's an excellent...

No tweaks are needed, Ken; it's an excellent installation just the way it is.

Let the man have his joy; he earned it.

rabbit
Forum: Help With Reception 13-Aug-2017, 8:33 PM
Replies: 37
Views: 12,076
Posted By rabbit73
Combining the Ouput of Two Preamps can Reduce Weak Signal Sensitivity

I assembled what equipment I had on hand to investigate what happens when the output of two preamps are combined with a splitter in reverse.

Equipment used:

Blonder Tongue HAVM-1UA Agile...
Forum: Help With Reception 12-Aug-2017, 6:13 PM
Replies: 37
Views: 12,076
Posted By rabbit73
Thank you for the clarification. I think I...

Thank you for the clarification.

I think I understand how the notch filter (or attenuator) on the output of the antenna not aimed at the desired channel will help, but is there any other way of...
Forum: Help With Reception 12-Aug-2017, 2:21 PM
Replies: 37
Views: 12,076
Posted By rabbit73
Thank you for the clarification. A good way to...

Thank you for the clarification.
A good way to view them.
I couldn't get my head wrapped around what he said:
Is he talking about "noise" that is from the internal NF of each preamp, or he is...
Forum: Help With Reception 12-Aug-2017, 12:50 AM
Replies: 37
Views: 12,076
Posted By rabbit73
The RCA TVPRAMP1R Preamp is inexpensive, works...

The RCA TVPRAMP1R Preamp is inexpensive, works fairly well, but does have quality control problems. In particular, when using separate UHF and VHF antennas, the switch must be set to SEPARATE. In...
Forum: Help With Reception 11-Aug-2017, 11:54 PM
Replies: 37
Views: 12,076
Posted By rabbit73
Thanks for the splitter information; very...

Thanks for the splitter information; very helpful.


As you are finding out, it is not easily done. You first must try your antennas without combining to see if reception is possible. Then, when...
Forum: Help With Reception 11-Aug-2017, 12:30 AM
Replies: 37
Views: 12,076
Posted By rabbit73
Yes, the Channel Plus 2512A might work. I wonder...

Yes, the Channel Plus 2512A might work. I wonder what is inside and how much current it will pass?

http://forum.tvfool.com/attachment.php?attachmentid=2844&stc=1&d=1502411380

1 GHz bandwidth ...
Forum: Help With Reception 10-Aug-2017, 4:09 AM
Replies: 37
Views: 12,076
Posted By rabbit73
If a 2-way splitter, used as a combiner, has to...

If a 2-way splitter, used as a combiner, has to pass power to two preamps and it has diodes, will the diodes be reversed biased and not pass power?...
Forum: Help With Reception 9-Aug-2017, 10:57 PM
Replies: 37
Views: 12,076
Posted By rabbit73
The method that ADTech suggested, combining after...

The method that ADTech suggested, combining after amplification, doesn't eliminate the combiner loss, but it does make it irrelevant because the signals are stronger before that attenuation.

So,...
Forum: Help With Reception 9-Aug-2017, 1:34 AM
Replies: 37
Views: 12,076
Posted By rabbit73
Hello again, welkin The DB8E does have more...

Hello again, welkin

The DB8E does have more gain than the 91XG for the low UHF channels according to the specs:

http://forum.tvfool.com/attachment.php?attachmentid=2590&stc=1&d=1489973660
...
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