[mythtvnz] Antenna Fun

[Paulgir]

I  decided to replace my old (20 years) mast head amp to try to improve  
signal problems.

I have been running a dual UHF/VHF antenna as well as a hi gain UHF  
antenna using a combined

masthead amp/diplexer.

To my disappointment I found the signal on the new amp  to be worse for  
the Canwest transport.

In order to diagnose the problem I changed the diplexer switch from  
separate to combined antennas.

This produced a marked signal quality improvement.Next I disconnected the  
VHF antenna cable from the diplexer.

This improved things a little more.

It seems the UHF signals from the two antennas were probably interfering  
with each other.