OTA Reception Files

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OTA Reception Files

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 Antenna Performance 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If marked with one or more X's, the data has either been superseded by an alternative run and/or it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.

UPDATE (25Jul2013): Updated "DTV Preamp Signal Level Overload Calculation - Rev N" to reflect new W-G LNA200's ASSUMED 20 dB improvement in UHF Max Input compared to AP8700.

UPDATE (20Nov2013): Added Chart showing RS 15-00396 4G_LTE Low Pass Filter Loss.

UPDATE (19Apr2018): Added Charts showing Measured Insertion Loss for various Ferrite and PCB Baluns.

UPDATE (7Feb2019): Added Charts showing Measured Insertion Loss for various FM Band Reject Filters.

Date(s): 3 Feb 2009. Album by holl_ands. 1 - 44 of 44 Total. 21345 Visits.

enlarge 172KB, 1024x791 1 DTV Antennas Rev E Compare Manufacturer Specs & Tested Performance	enlarge 30KB, 1024x791 2 Belden RG-6 & RG-11 Cable Loss Specs	enlarge 198KB, 1024x666 3 Belden RG-59, RG-6 & RG-11 Coax Loss Chart
enlarge 40KB, 1024x791 4 ATSC & NTSC Tuner Module Specs	enlarge 150KB, 1024x791 5 CECB Feature List - mod 26Mar2010.xls	enlarge 37KB, 791x1024 6 COMPARE System Noise Figures With and Without Preamps
enlarge 86KB, 1024x791 7 DTV Preamp Signal Overload Calculator - Rev M Calculate Max Input Signal to Maximize SFDR (Spurious Free Dynamic Range).	enlarge 392KB, 791x1024 8 DTV Interference Calculator - Rev G Enter up to five channels to see which channels are affected by (3 channel wide) Third Order Intermods. Strong channels also block weak adjacent channels	enlarge 464KB, 1024x989 9 Preamp Performance Summary Measurements by Calaveras - posted 28Nov2015 Presumably for Two Strong Input Signals. Max Signal Input and Output would need to be DERATED: 3 Signals: -3.6 dB 4 Signals: -5 dB 5 Signals: -6 dB 6 Signals: -7 dB 8 Signals: -8 dB Ignore signals more than 6 dB below the Strongest.
enlarge 95KB, 791x1024 10 Modified www.solidsignal.com Chart Comparing Preamps - RevB Added columns listing Max Input Signal for Maximized SFDR (Spurious Free Dynamic Range). RevA: W-G revised HDP-269 Max Input Spec from 350,000 to 150,000 uV. RevB: Changed back to HDP-269 max Input Spec of 350,000 uV and corrected AP-2870 per 110,000 uV vice old spec value of 10,000 uV.	enlarge 44KB, 1024x791 11 Old Preamp Specs - Rev B	enlarge 3.17MB, 791x1024 12 UHF Antenna 4nec2 Sim Charts RevJ.xls
enlarge 1.25MB, 791x1024 13 Hi-VHF Antenna 4nec2 Sim Charts RevI.xls	enlarge 2.62MB, 791x1024 14 UHF_HiVHF_STACKED Antenna 4nec2 Sim Charts - RevG.xls	enlarge 337KB, 791x1024 15 Winegard YA-1713 4nec2 Sim Charts.xls
enlarge 379KB, 791x1024 16 Hi-VHF Yagi vs Zig-Zag Performance Curves - holl_ands RevD.xlsx	enlarge 0KB, 1024x682 17 Channel Master SPARTAN Preamp Circuit Board	enlarge 0KB, 1024x682 18 Channel Master SPARTAN Preamp - Reverse
enlarge 346KB, 1024x857 19 Winegard AP-8700 Preamp Top of Circuit Board	enlarge 356KB, 1024x966 20 Winegard AP-8700 Preamp Bottom of Circuit Board	enlarge 292KB, 1024x962 21 Winegard HDP-269 Preamp Top of Circuit Board
enlarge 288KB, 1024x743 22 Winegard HDP-269 Preamp Bottom of Circuit Board	enlarge 197KB, 1024x768 23 Original CM7777 Preamp Bottom of Circuit Board	enlarge 243KB, 1024x768 24 Original CM7777 Preamp Top of Circuit Board
enlarge 175KB, 1152x608 25 Original CM7777 Preamp VHF/UHF Selector Switch Detail	enlarge 192KB, 1152x623 26 PS-0747 Power Insertion Module Schematic for Original CM7777 and Spartan Preamps Posted by rabbit73	enlarge 536KB, 1152x694 27 RS 15-00396 4G_LTE Low Pass Filter Loss Posted by ADTech, 27Nov2013 Note Significant Loss on Higher Channels, Do NOT use unless you are SURE you NEED it.
enlarge 111KB, 791x1024 28 Balun Loss using TWC-SD Freqs - Rev B	enlarge 76KB, 1024x791 29 Philips Ferrite Outdoor Balun Loss: UHF: 0.5 to 0.9 dB (470-698 MHz) Hi-VHF: Under 0.6 dB, Lo-VHF: Under 0.7 dB Measurements by Johnrmckee (18Feb2009)	enlarge 21KB, 1152x691 30 Ferrite Balun Insertion Loss Used in older A-D 91XG Antennas Loss for TWO Back-to-Back Units: 1.15 to 1.7 dB each (470-698 MHz) Measurements by Calaveras, Aug2019
enlarge 11KB, 1024x768 31 Ferrite Balun Loss Comparisons Loss for TWO Back-to-Back Units: CM94444 Outdoor Balun Loss: UHF: ~1.2 dB Hi-VHF: ~1.0 dB Lo-VHF: ~0.4 dB Measurements by ADTech	enlarge 593KB, 1024x796 32 UP2A PCB Balun Loss Used in A-D UHF C2 and C4 Antennas Loss for TWO Back-to-Back Units: 0.6 to 0.9 dB each (470-698 MHz) Measurements by ADTech	enlarge 10KB, 1024x768 33 UP2A-6 PCB Balun Loss Variation Used in A-D Hi-VHF C5 Antenna Loss for TWO Back-to-Back Units Measurements by ADTech
enlarge 149KB, 791x1024 34 FM Band Reject Filter Tin-Lee CH7 CH.FM 40 FM Bandstop Frequency Response	enlarge 16KB, 1024x704 35 FM Band Reject Filter MCM 33-334 FM Band (88-108 MHz) Loss Measurements by tripelo on 12 separate samples	enlarge 12KB, 1024x706 36 FM Band Reject Filter MCM 33-334 Hi-VHF Band (174-216 MHz) Loss Measurements by tripelo
enlarge 8KB, 1024x663 37 FM Band Reject Filter MCM 33-334 Hi-VHF Band (174-216 MHz) Return Loss Measurements by tripelo	enlarge 612KB, 1152x694 38 FM Band Reject Filter To allow Ch6 Reception, Radio Shack 15-024 has minimal attenuation on low FM Freqs Measurement by ADTech	enlarge 10KB, 1024x768 39 FM Band Reject Filters Antennas Direct vs (old) Radio Shack 15-377 To allow Ch6 Reception, R-S 15-677 has minimal attenuation on low FM Freqs [15-377 is typo]
enlarge 13KB, 1024x768 40 Freq. Response for four VHF/UHF Diplexers Center is 100 MHz with 10 MHz/Div Zero Loss is middle with 10 dB/Div So FM Band is ~1/2 division on either side of Center Measurements by ADTech	enlarge 18KB, 1024x791 41 Digital Planet 2-Port RF Splitter/Combiner Loss Measurements Using Cable Box Diagnostic Display as a Signal Level "Meter" [+/- 0.5 dB] By holl_ands, Nov2004	enlarge 81KB, 1024x791 42 2 + 4-Port RF Splitter/Combiner Loss - Rev B By holl_ands, Jan2005
enlarge 12KB, 1024x751 43 W-G SD-3700 2-Way Splitter/Combiner Loss By Tripelo, Nov2011	enlarge 80KB, 1152x345 44 RF Splitter Loss, Isolation & Return Loss By ADTech, Jul2014

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Sign the Guestbook. Displaying 3 of 3 entries.

Great stuff,here...thanks!
- Michael P. Koryciak, Sun, 14 Jul 2019 9:43PM

Great stuff!
- Brian Hudgins, Thu, 27 Nov 2014 2:41PM

Fascinating collection of valuable information & tools for those of us RF EE challenged. Very much appreciated.
- Pete Higgins, Wed, 27 Mar 2013 10:10PM