I've mentioned before about using an AV640 as a backup antenna. That
antenna has been down through the winter, but it's about to go back up.
I decided to mount a 24' length of 2" OD X 1/4" wall, 6061-T6 on the NW
guy anchor post for the 45G. It's hinged at the bottom and clamped at
the top. I'm using a winch mounted on the side of the guy anchor post
with the cable running up through a pulley about a foot above the top of
the post, down through a pulley on the 2" masting and back to the top of
the guy anchor post.
I can easily pick the AV640 up over my head with just one hand, but for
those considering using a mast to put antennas above the top of their
tower I am going to have to shoot some photos of this thing raising the
I expected some bow as I could only attach the cable at about the 12'
mark on the 24' mast, but I did not expect as much as I ended up with.
Of course the AV640 is related to a wet noodle when being raised like
this any way and it's a good reminder to put guys on the things even
though Hy-Gain says they don't need them.
Tomorrow's supposed to be a nice day so I'll get the capacity hats and
counter poise into position, hook up the coax, and crank it up. Then I
need to get it on frequency for each band.
So, maybe I can get some photos up within a couple of days.
Next batch of tube I order is going to be stronger and harder than 6061-T6.
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