Certainly the signal from KCOP-DT (13.1) in Los Angeles is lower than many of the other OTA signals (level=60), however I get a very good picture from that channel.
Note that KCOP-DT is really 66.1, the HR20 only shows the mapped channel in the header.
Since MT.Wilson is over 5000ft above sea level, you can a get signal over 75 miles away dependng on your location.
I live in Irvine and therefore can not get KVCR-DT(24.1) since its transmitter is not on MT.Wilson and I use a silver sensor antenna which is very directional
Note that KCOP-DT is really 66.1, the HR20 only shows the mapped channel in the header.
Since MT.Wilson is over 5000ft above sea level, you can a get signal over 75 miles away dependng on your location.
I live in Irvine and therefore can not get KVCR-DT(24.1) since its transmitter is not on MT.Wilson and I use a silver sensor antenna which is very directional