Thanks Bill. That's a good idea. It turned out to be a longer run than I originally thought, so I'm probably closer to 150ft, unfortunately.
There was a pinch in the coax, near the hinge of the tilt pole, that caused the signal loss. I fixed that & picked up a good 19 channels at about 75ft on the coax run. The signal is fairly strong on those that were picked up, at around 70-75% on the HDHomerun. But, by the time I run the remaining 75ft, the signal is gone, or too weak to pick up.
So, I'm trying to figure out a way to maximize signal strength. I have one splice in the first 75ft section that I could remove. I could replace the first 75ft with RG11, as you recommended too. I could push the antenna up another 17ft too. My pre-amp is fine, I think.
I'm running numbers now. It looks like RG6 has a 5.60db loss over 75ft (using a 600Mhz base frequency), while the RG11 would be somewhere around 3.55db. Is that correct? That's a substantial 2db gain over 75ft. I can't replace the full 150ft... the last 75 of RG6 was installed below grade in conduit. Correction. I could probably replace that other 75 too, since it is in conduit. I could probably pull it through easier. (That's an idea. 200ft of RG11 is $100 on Amazon. I'll check on connectors too, because I'll need those)
Now, I only put my mast @ 23ft now, but have enough area/material to add another 17ft if needed. So, here is my report for 23ft:
http://www.tvfool.com/?option=com_wr...51344e0b85d224
As of now, I'm clearly picking up the following channels @ the 75ft coax mark:
WTVW - 7.1 - 9.4db
WBKO - 13.1 - 4.7db
WDRB - 41.1 - 1.5db
WMYO - 58.1 - 1.3db
WLKY - 32.1 - -1.5db
WHAS - 11.1 - -2.1db
WKZT - 23.1 - -7.5db
WBKI - 34.1 - -15.2db (How the hell?)
Here is the report for 40ft:
http://www.tvfool.com/?option=com_wr...513497ea72eb52
WTVW - 7.1 - 11.1db (+1.7db)
WBKO - 13.1 - 7.3db (+2.9db)
WDRB - 41.1 - 6.8db (+5.3db)
WMYO - 58.1 - 6.6db (+5.3db)
WLKY - 32.1 - 3.6db (+5.1db)
WHAS - 11.1 - 1.8db (+3.9db)
WKZT - 23.1 - -1.7db (+5.8db)
WBKI - 34.1 - -15.2db (+1.5db)
Major gains with the increased elevation. Those gains alone could potential offset any coax loss, right? If I replace the first 75ft of coax with RG11, gaining 2db across the board, then bump the antenna up 15-17ft, I'll see 3-8db gains on all the important channels.
Is that the direction I should head first? Thanks for the advice!