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Search: Posts Made By: GroundUrMast
Forum: Antennas 9-Aug-2019, 6:58 AM
Replies: 24
Views: 58,140
Posted By GroundUrMast
A quick but worthwhile read:...

A quick but worthwhile read: http://www.hdtvexpert.com/tag/low-band-vhf-tv-reception/
Forum: Antennas 3-Jan-2013, 1:05 AM
Replies: 24
Views: 58,140
Posted By GroundUrMast
Figure 3 and the related cometary are of help:...

Figure 3 and the related cometary are of help: http://www.broadcastpapers.com/whitepapers/HarrisLowBandVHF_348.pdf?CFID=24697812&CFTOKEN=22e3c703eb2b3285-FDFBDA31-9DAD-C2BF-4BE6988F127D1403

The...
Forum: Antennas 3-Jan-2013, 1:03 AM
Replies: 24
Views: 58,140
Posted By GroundUrMast
Re. the various sources of...

Re. the various sources of RFI:http://www.tvtechnology.com/conference-updates/0136/low-band-vhf-dtv-revisited/183659

Re. the various sources of RFI, FCC proposed solution (transmitter power level...
Forum: Antennas 10-Oct-2012, 7:47 PM
Replies: 24
Views: 58,140
Posted By GroundUrMast
A long document, that incorporates quite a bit of...

A long document, that incorporates quite a bit of information from earlier work. Interesting to see different parties contending for their ideas and interests.
...
Forum: Antennas 20-Jul-2012, 9:24 PM
Replies: 24
Views: 58,140
Posted By GroundUrMast
Here's a power point presentation focusing on the...

Here's a power point presentation focusing on the general topic of VHF reception:...
Forum: Antennas 11-Jan-2012, 7:06 PM
Replies: 24
Views: 58,140
Posted By GroundUrMast
The case of...

The case of http://forum.tvfool.com/showthread.php?t=2899 is more interesting. The predicted NM for WMC, real CH-5 is only 3.7 dB and, in addition to the 2-edge path, there is some co-channel...
Forum: Antennas 11-Jan-2012, 6:44 PM
Replies: 24
Views: 58,140
Posted By GroundUrMast
In the case of...

In the case of http://forum.tvfool.com/showthread.php?t=2938 the predicted NM of WPVI, real CH-6 is 31.6 dB and a 2-edge path. This does not strike me as a particularly challenging situation. I'd...
Forum: Antennas 24-Dec-2011, 8:37 PM
Replies: 24
Views: 58,140
Posted By GroundUrMast
This thread is specifically open to technical hair splitting.

If you believe I or others are overly conservative when making L-VHF reception equipment recommendations, please make your case. Feel free to answer"...what is a practical minimum NM goal for...
Forum: Antennas 20-Dec-2011, 6:48 PM
Replies: 24
Views: 58,140
Posted By GroundUrMast
http://transition.fcc.gov/Bureaus/Engineering_Tech...

http://transition.fcc.gov/Bureaus/Engineering_Technology/Orders/1997/fc97115a.pdf

pp A3, section III implies that noise in the low VHF band requires at least 13 dB better net NM (per TV Fool...
Forum: Antennas 2-Dec-2011, 8:26 PM
Replies: 24
Views: 58,140
Posted By GroundUrMast
Low VHF reception (2 - 6) Experience & Opinions

My personal experience does not include reception of ATSC on the low VHF channels 2 through 6. There are no local low-VHF stations on the air in the Seattle market at this time. I'd like to invite...
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