TV Fool  

Go Back   TV Fool > Over The Air Services > Help With Reception

Notices

Reply
 
Thread Tools
Old 25-Apr-2019, 6:58 AM   #121
blackstone
Senior Member
 
Join Date: May 2017
Posts: 126
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
blackstone is offline   Reply With Quote
Old 25-Apr-2019, 2:44 PM   #122
Tim
Senior Member
 
Join Date: Nov 2014
Location: Acworth, GA
Posts: 171
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.
__________________
Antennacraft Y10-7-13 VHF, Antennas Direct 91XG UHF
Tim is offline   Reply With Quote
Old 25-Apr-2019, 3:11 PM   #123
rabbit73
Retired A/V Tech
 
Join Date: Aug 2012
Location: S.E. VA
Posts: 2,446
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, 134 views)
File Type: jpg blackstoneTVFreportRE4-25-19.JPG (191.6 KB, 131 views)
__________________
If you can not measure it, you can not improve it.
Lord Kelvin, 1883
http://www.megalithia.com/elect/aeri...ttpoorman.html

Last edited by rabbit73; 25-Apr-2019 at 3:20 PM.
rabbit73 is offline   Reply With Quote
Old 25-Apr-2019, 3:47 PM   #124
blackstone
Senior Member
 
Join Date: May 2017
Posts: 126
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?
blackstone is offline   Reply With Quote
Old 25-Apr-2019, 6:57 PM   #125
rabbit73
Retired A/V Tech
 
Join Date: Aug 2012
Location: S.E. VA
Posts: 2,446
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
__________________
If you can not measure it, you can not improve it.
Lord Kelvin, 1883
http://www.megalithia.com/elect/aeri...ttpoorman.html

Last edited by rabbit73; 25-Apr-2019 at 7:43 PM.
rabbit73 is offline   Reply With Quote
Old 25-Apr-2019, 8:36 PM   #126
blackstone
Senior Member
 
Join Date: May 2017
Posts: 126
Thanks, rabbit 73.
I don't understand the numbers you posted other than KW.

Just have to wait and see
blackstone is offline   Reply With Quote
Old 25-Apr-2019, 10:07 PM   #127
rabbit73
Retired A/V Tech
 
Join Date: Aug 2012
Location: S.E. VA
Posts: 2,446
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, 99 views)
__________________
If you can not measure it, you can not improve it.
Lord Kelvin, 1883
http://www.megalithia.com/elect/aeri...ttpoorman.html

Last edited by rabbit73; 25-Apr-2019 at 10:41 PM.
rabbit73 is offline   Reply With Quote
Old 25-Apr-2019, 10:37 PM   #128
blackstone
Senior Member
 
Join Date: May 2017
Posts: 126
Thanks for the explanation.
What does vertical polarization do?
blackstone is offline   Reply With Quote
Old 25-Apr-2019, 10:48 PM   #129
rabbit73
Retired A/V Tech
 
Join Date: Aug 2012
Location: S.E. VA
Posts: 2,446
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.
__________________
If you can not measure it, you can not improve it.
Lord Kelvin, 1883
http://www.megalithia.com/elect/aeri...ttpoorman.html
rabbit73 is offline   Reply With Quote
Reply

Bookmarks

Go Back   TV Fool > Over The Air Services > Help With Reception


Thread Tools

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off




All times are GMT. The time now is 8:59 PM.


Powered by vBulletin® Version 3.8.8
Copyright ©2000 - 2019, vBulletin Solutions, Inc.
Copyright © TV Fool, LLC