Now it looks like I have too much antenna for my location. Is there anyway to take care of this problem without buying a new antenna? If a new antenna is the solution what do you recommend?
too much antenna...nope.
overload is rare when sending an un amplified signal to a tuner.
75' coax 5 db loss
2- diplexers about 7 db loss.
signal level is tamed by the time it gets to the destination.
hard to determine cause of problem from here.
try jim's advise...peak antenna on the analog version of 27.1...looking at a picture.
if there is ghosting, peak antenna till ghosting is minimized.
also would like to have you change channels and observe if you are getting any co channel or adjacent channel interference. if so let us know which channel.
to determine if overload is an issue, when you aim away from the 27.1 dt tower, does the signal level go up? if it does than overload may be an issue. but doubt it unless some other channel is affecting it
I have a winegard hd8200p longer and a little more robust then your antenna with shorter coax runs, 19 miles from towers, all stations yellow to lt green at the web, and amplified with a no overload.
Do not feel general signal overload is an issue there.
any fm towers nearby?