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Old 2-Dec-2017, 2:01 AM   #50
Retired A/V Tech
Join Date: Aug 2012
Location: S.E. VA
Posts: 2,569
Originally Posted by blackstone View Post
May I ask why you suggest the pre amp with the CM?

That one is the hardest to get to due to height above roof without dropping the mast to the ground.
(Not easy)
I suggest it because a preamp at the Polaroid antenna helps, so a preamp at the DB8e or the CM might help to make the signals stronger BEFORE they go down the coax.

The preamp can be mounted a little below the antenna at a spot you can reach as a test.
If you can not measure it, you can not improve it.
Lord Kelvin, 1883
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