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Old 25-Apr-2019, 6:58 AM   #121
blackstone
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Here's an update.

Installed the PA 18 preamp on the Channel Master. Already had one on the DB8E.
Used the combiner that I had on hand from Antennas Direct.
Connected to the CM distribution amp and got stations without the interference.
Tried without the distribution amp and lost many stations.
Re-connected the distribution amp.

I get every station available except WPGH 53.
Had a couple rainy days and that affected my reception.

Since I have now received my UVSJs, would there be any value in trying one of them in place of the Antenna Direct combiner?

I think I'm about as optimized as I can for my location unless there are other suggestions.

Thanks to everyone for all the generous, patient help.

TV Fool is a fantastic resource and this forum, with all the great people, is a true asset for techno-dunces like me.

If there is some way I can support this or contribute a little something to the ongoing upkeep, please let me know.

I still have some spare UVSJs if anyone needs some
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Old 25-Apr-2019, 2:44 PM   #122
Tim
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Quote:
Originally Posted by blackstone View Post

Since I have now received my UVSJs, would there be any value in trying one of them in place of the Antenna Direct combiner?
It is so easy to change out that you could certainly try it. Most likely it will make no difference, but if it were me (being the curious type) I would certainly give it a try just to see what happens.
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Old 25-Apr-2019, 3:11 PM   #123
rabbit73
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Quote:
Originally Posted by blackstone View Post
Here's an update.

Installed the PA 18 preamp on the Channel Master. Already had one on the DB8E.
Used the combiner that I had on hand from Antennas Direct.
Connected to the CM distribution amp and got stations without the interference.
Tried without the distribution amp and lost many stations.
Re-connected the distribution amp.

I get every station available except WPGH 53.
Thank you for the update with your report of improved reception.

Your current TVFool report doesn't list WPGH because of database errors used to generate the report.



However, a report from rabbitears.info does list WPGH, and its list of channels should be more accurate. WPGH is listed as much weaker than your other channels.



Quote:
Since I have now received my UVSJs, would there be any value in trying one of them in place of the Antenna Direct combiner?
It should work about the same as the Antennas Direct UVSJ. If you are curious, maybe you should make a temporary test.

Quote:
I think I'm about as optimized as I can for my location unless there are other suggestions.
Yes, I agree.

WPGH is moving to channel 20 during Repack Phase 4, 6/22/2019 to 8/2/2019

https://www.rabbitears.info/market.p...&callsign=WPGH

https://www.rabbitears.info/repackch...=&lss=&status=

https://www.fcc.gov/about-fcc/fcc-in...ition-schedule

They might be running at reduced power because of antenna work.

Quote:
Thanks to everyone for all the generous, patient help.

TV Fool is a fantastic resource and this forum, with all the great people, is a true asset for techno-dunces like me.

If there is some way I can support this or contribute a little something to the ongoing upkeep, please let me know.
The fact that you thanked us and gave a report of improved reception by following our advice is sufficient; it's what keeps us going.

Enjoy your new setup.

Best regards,
rabbit
Attached Images
File Type: jpg blackstoneTVFreport4-25-19.JPG (119.3 KB, 457 views)
File Type: jpg blackstoneTVFreportRE4-25-19.JPG (191.6 KB, 455 views)
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Last edited by rabbit73; 25-Apr-2019 at 3:20 PM.
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Old 25-Apr-2019, 3:47 PM   #124
blackstone
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Quote:
The fact that you thanked us and gave a report of improved reception by following our advice is sufficient; it's what keeps us going.
Or I could continue to ask dumb questions for others that are too embarrassed.



There are times that WPGH comes in, usually poorly.

Will the repack improve or diminish my chances at receiving WPGH?
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Old 25-Apr-2019, 6:57 PM   #125
rabbit73
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Quote:
Originally Posted by blackstone View Post
There are times that WPGH comes in, usually poorly.

Will the repack improve or diminish my chances at receiving WPGH?
If it is running at reduced power now to work on the new channel 20 antenna, you should see some improvement. If it is not running at reduced power now, your reception will be about the same.

The channel 20 transmitter will be running at a little less horizontal power because it is on a lower channel which requires less power for the same coverage area. Coverage area is important to the companies that are paying for the ads.

https://www.rabbitears.info/market.p...&callsign=WPGH

click on Technical Data

channel 43
1000 kW ERP horizontal polarization
55.6 mile contour / 9726 sq. mi. area / Est. Pop. 2,976,383

channel 20
800 kW ERP horizontal polarization + 343.2 kW ERP vertical polarization
57.2 mile contour / 10284.5 sq. mi. area / Est. Pop. 3,128,179
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Last edited by rabbit73; 25-Apr-2019 at 7:43 PM.
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Old 25-Apr-2019, 8:36 PM   #126
blackstone
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Thanks, rabbit 73.
I don't understand the numbers you posted other than KW.

Just have to wait and see
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Old 25-Apr-2019, 10:07 PM   #127
rabbit73
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Quote:
Originally Posted by blackstone View Post
Thanks, rabbit 73.
I don't understand the numbers you posted other than KW.

Just have to wait and see
Effective radiated power (ERP), synonymous with equivalent radiated power, is an IEEE standardized definition of directional radio frequency (RF) power, such as that emitted by a radio transmitter.

WPGH has a transmitter with an output of 45.6 kW
It also has an antenna with a gain of 13.41 dB that makes the output of the transmitter stronger
45.6 kW + 13.41 dB gain = 1000 kW ERP

and this is the WPGH coverage map for 55.6 mile contour / 9726 sq. mi. area / Est. Pop. 2,976,383

Attached Images
File Type: jpg blackstoneTVFcovWPGHfcc.JPG (260.0 KB, 390 views)
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Last edited by rabbit73; 25-Apr-2019 at 10:41 PM.
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Old 25-Apr-2019, 10:37 PM   #128
blackstone
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Thanks for the explanation.
What does vertical polarization do?
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Old 25-Apr-2019, 10:48 PM   #129
rabbit73
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Quote:
Originally Posted by blackstone View Post
Thanks for the explanation.
What does vertical polarization do?
The horizontal polarization of the transmitting antenna matches the horizontal polarization of your receiving antenna for the most effective reception.

Some vertical polarization has been added to the horizontal polarization of the newer antennas with the hope that it will make the reception of the new ATSC 3.0 signals more effective for mobile devices.
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Old Yesterday, 8:35 PM   #130
blackstone
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I had a choice of a new thread or resurrect this old one.
Hope this is ok.

Thanks, again, for your indulgence.

I'll start off by saying I'm aware of repack and don't think any of my issues are related to that.

I have lost stations recently, both UHF and VHF.
Actually, I can't get any VHF stations at all.

My UHF antenna is an Antennas Direct DB8E and my VHF is a Channel Master Deep Fringe Masterpiece 100-Mile Range Outdoor Antenna

I replaced the splitter/amplifier with a new Antennas Direct.
I have used both , that one and the CM 3020(?).

Here is my TVFool report.
http://www.tvfool.com/?option=com_wr...9038bb9e5afa9f

Here are the stations I have lost.

Call Letters RF Virtual
WQED 4 4
WTAE 27 4
WPCW 30 19
*WTOV 9 9
*WWCP 8 8

The first two I have been able to receive recently
The next two have been a while and the last one would be nice.

I have not adjusted the UHF antenna since I got it optimized but do adjust the CM to see if I can get anything with it.

Any help or suggestions is greatly appreciated
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Old Yesterday, 9:36 PM   #131
Tim
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Quote:
Originally Posted by blackstone View Post

I have lost stations recently, both UHF and VHF.
Actually, I can't get any VHF stations at all.
Blackstone,

The signal reports at TV Fool are very much out of date. It would be very helpful if you could post a link to your RabbitEars report. You can generate one at this link: https://www.rabbitears.info/searchmap.php

Tell us a bit more about your antenna system.
Are you combining the two antennas with a UVSJ combiner before the preamp?
Which Antennas Direct preamp? The Juice or the PA18?
Are you using a rotator?
If fixed, which way is each antenna pointing?
What stations are you receiving with good results?
How are your connections waterproofed at the antenna and preamp?
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