-> Unless you somehow damaged the antenna, I'd suspect the cable.
-> Make it the best you can afford. Find the loss figures for cable
-> types, and pick the best you can afford.
I forgot to mention initially that I have a GMRS antenna up there too.
That antenna's about 10' away and the bottom-most point of the antenna
is about 3'-4' higher than the top of the discone.
I will check the cable though.  I don't think I was rough with it when I
moved the antenna but, ya never know! 
-> No, that will alter the freq range of the cone; if the disk is not
-> altered proportionally, you will make the antenna unbalanced, and
-> very inefficient. If you *do* alter the lengths of both the cone and
-> disk, you will change the frequency band of the antenna (lengthening
-> them would lower the band).
Ahhh, yes.  Thanks.
-> I'd check the cable.
I will.
Thanks for the help Bill,
Tony
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