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OTA Reception Files (3 Feb 2009)Downloadable Files re On-The-Air Reception - by holl_ands
Includes DTV Antenna Specs (and measured Performance), measured Balun Loss, measured RF Splitter Loss & RG-6 Cable Loss Specs.
Also includes ATSC/NTSC Tuner Specs and Preamp Specs, plus a DTV Signal Overload Calculator and a Third Order Intermod Calculator.
UPDATE (24Mar2009): Updated DTV Interference Calculator Rev C.
UPDATE (26Mar2010): Added CECB Features List - mod 26Mar2010.
UPDATE (14Aut2011): Updated DTV Interference Calculator - Rev F.
UPDATE (12Sep2011): Updated DTV Preamp Signal Overload Calculator - Rev L to add VHF specific calculations.
UPDATE (25Sep2011): Updated "Preamp Comparison Chart - Rev A", due to W-G change to HDP-269 Max Input Spec.
UPDATE (13Mar2012): Updated "DTV Preamp Signal Level Overload Calculation - Rev M".
Fixed typo in W-G specs for 19 dB Gain Preamps - 99.4 dBuV vice 89.5 dBuV. Calculations not affected.
UPDATE (21Nov2012): Added five Spread Sheets (*.xls or *.xlsx) with Raw Data from various 4nec2 runs
that were used to prepare the Charts used throughout this website.
If marked with one or more X's, the data has either been superseded by an alternative run and/or it
might have an unspecified PROBLEM...so ignore it.
UPDATE (1May2013): In my Modification to solidsignal's Preamp Comparison Chart, corrected AP-2870 Max Input to reflect (29Jan2010) update to Winegard Preamp specs.
UPDATE (10May2013): Added Interior Photos of Winegard AP-8700 and HDP-269 Preamps. |
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DTV, TV and FM Tower Locations (12 Sep 2009)DTV (green), TV (red) and FM (teal) Tower Locations for a few select cities.
Based on transmitter icon files downloaded from www.tvfool.com and www.fmfool.com
UPDATE (4 Nov 2011): Added FM Towers in vicinity of Ottawa, Canada. |
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Interference (EMI) to DTV & DTT (24 Feb 2012)Interference (EMI) to Digital Television (DTV), aka Digital Terrestrial Television (DTT) in the U.K.
Various Test Results found in publicly available documents:
https://www.dc414.org/download/confs/defcon15/Speakers/Mohney/Extras/dc-15-mohney-maxtv_comments_1-31-07.pdf
[DTV EMI: Apdx B in MSTV & NAB Comments to FCC 31Jan2007, ET Docket Nos. 02-380 and 04-186.]
and
http://stakeholders.ofcom.org.uk/binaries/consultations/800mhz/statement/2010-0026.pdf
[UK - Bal Randhawa + Ian Parker, Cobham Tech Svcs - LTE EMI into Domestic DTT Systems, 2010-0026, Jan2010.] |
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