Recent content by DW-77

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    Incredible Reception Story!

    I understand now that you were referring to the raw vs. net gain aspect. I was referring to the availability of data (and that is why I re-quoted the "pulling teeth" part). Sorry about the confusion. Sure, let's do that! Here is the gain vs. Freq. chart for the Hacked 4221HD (simulation done...
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    Incredible Reception Story!

    I think that is what you stated right before pasting that chart: Did I misunderstand what you wrote in that posting? Are you sure? How many other UHF antennas have you seen out there with a gain variation like this? IMO, whoever typed this chart made some mistakes. If we swap the gain...
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    Question: Stellar Labs HDTV/DTV/UHF Outdoor Television Antenna | 30-2155 (302155)

    Going back to the Stellar Labs 30-2155 - here is one more aspect I noticed: Putting the data in the table and the gain chart side by side: The gain chart starts at 8dB/470MHz and ends at about 13.5dB/860MHz. If that is true, and if the data in the table is also mentioning just the two...
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    Question: Channel Master CM4221-HD - performance data

    I did not have that datasheet, thank you for sharing it. And here is a bonus I can add: when I called Antennas Direct about the CS-4, the support rep did not seem to know about this file, but was kind enough to obtain and email me the radiation patterns at 3 different frequencies (as 3 separate...
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    Question: Stellar Labs HDTV/DTV/UHF Outdoor Television Antenna | 30-2155 (302155)

    Rick, thank you for bringing that up. If we look at the numbers from that perspective (confusion created by the dBd/dBi gap + rounding to the "nearest half"), then 15.5dBd / 17.5dBi is OK. Another element that made me be a little skeptical is the title on the chart: "Horizontal polar plot"...
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    Question: Channel Master CM4221-HD - performance data

    I have a particular combination of local and distant stations, that requires a certain antenna radiation pattern (gain variation over the frequency range wold be helpful, too). Based on reviews, the CM4221-HD looks like it might be a good candidate, but I cannot find any credible technical /...
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