Originally Posted by 829
I went to antenna web and found that the stations I wanted were UHF. Are you still getting Tulsa channels? If so, are they watchable? How tall is your mast? My GPS puts me at 604' while standing on the ground. Any insight you can give me would be greatly appreciated.
829, my antenna is only about 15' off the ground, putting it at about 790' above sea level. I'm still getting some Tulsa channels, KOTV-DT, KOKI-DT and KMYT-DT, occasionally others if the atmospherics are right. KOTV is always watchable, KMYT is usually watchable, but KOKI has always been problematic, sometimes watchable, often not. Summer is usually better than winter. I don't get any of the Tulsa VHF channels because I don't have a VHF antenna.
As for insight, please take this for what it's worth, which might not be much, but might be something to consider. Based on what tvfool.com says about your location, compared to what it says about my location, it may be a struggle for you to get reliable reception from the Tulsa stations. I copied the first 20 stations tvfool.com listed for your location and the first 20 for mine and pasted them side-to-side below. Your results are shown under the Fort Smith heading and mine under the Greenwood heading. Notice that the Tulsa channels' signal levels [the Pwr(dBm) column] at your location are on the order of 10 to 15 dBm less (more negative) than at my location, even though you're 8 miles or so closer to the towers. Your altitude is a couple of hundred feet below mine, which probably explains most of the difference. A 10 dBm difference is a factor of 10, and a 13 dBm difference is a factor of 20. If my signal strength was down by a factor of ten, I don't think I'd get any Tulsa channels, even with what I consider a pretty decent antenna, preamp and receivers.
I don't know how accurate tvfool's analysis tools are, and I'm not a broadcast or antenna engineer, and as always, your mileage may vary. But I hope this helped. Let us know how you make out. If you haven't read it already, the tvfool TV Signal Analysis FAQ discusses the analysis reports in more detail HERE