Poor Coverage

[cttrondonia]

Hi for all.
I have a problem, my coverage is down... of 180 nm to 166 nm... I don't no wath happen.
My antenna is over my house, and the coverage is no good.
I need help to up my coverage.

[Runway 31]

14 miles makes no difference

[cttrondonia]

Alan... in the last 7 days have the range 166.66NM but i have see in the last days the coverage more poor... max 130 and less.

[Runway 31]

You stated 180 down to 166.  This will vary day to day and will depend where in your coverage area the aircraft are placed so nothing to worry about.  If it was down to 30-50 miles then its time to worry and I  will bet it will go up again.  I see from your polar diagram you have some areas further out than others so it all depend on where the aircraft fly in relation to your antenna.

Alan

[cttrondonia]

Hi for all.
Today I have increase my coverage in 50nm with a simple work.
I have remove 3 VHF part of the Comstation antenna. The Comstation antenna have 4 VHF antenna. The only VHF part if I don't have remove is the part up the antenna