[EMAIL PROTECTED] wrote:
>
> The epoxy sealing the three recessed screws on 120 deg centers near the
> aluminum mounting tube meets the fiberglass must be removed.
I have removed these three allen head screws, however the epoxy is
wedged between the aluminum and the fiberglass. Will heating the
aluminum near the fiberglass loosen the physical connection?
The set screw at top
> must be removed and the tip heated with heat gun. Cap will come off. Don't
> overheat fiberglass. The complete antenna then can be removed from the
> fiberglass
> tube.
I did remove the allen head screw from the top metal tip. With a little
WD-40 on the tip (no heat necessary) the one foot of broken fiberglass
pulled out of the tip and exposed the one foot of copper element. It is
important to note that the metal tip separates into two pieces. After
the allen screw is taken out, the center of the tip separates from the
collar portion of the tip. This collar portion of the tip is fastened
by epoxy to the fiberglass tube at the antenna top.
Suggest you place complete antenna on a flat board at least 4 inches
> wide prior to pulling fiberglass tube off.
I can see where we have to lay it flat on the ground or a board. It
looks very fragile.
It gets very floppy and the board
> will keep things straight for you. My problem was the first radiating section
> where it connected from one outside tube to the next center conductor. It
> flexes
> and the center conductor becomes work hardened and eventually forms a fine
> hairline crack. Could not see it with eye, touched it with a finger and it
> broke. Soldering the joint with lead/tin is a temporary fix. I used low temp
> silversolder. Made a sleeve from brass tubing purchased at hobby shop. The
> spacers
> for the center conductor will melt if you apply too much heat. Adjust nothing
> in bottom of antenna near the coax connector.
We did take out the three bolts as mentioned, but I would assume this
whole assembly should slide out of the bottom...or the top of the
aluminum tube?
Painted antenna with similar
> color fiberglass Sherwin-Williams Co paint from boat store. Worked fine.
> Don't
> use a dark color. Have more info from CellWave if you want, contact me
> directly.
> Gary K2UQ
> [EMAIL PROTECTED]
One question is the antenna base. There are three brass bolts, 7/16ths,
in the base around the UHF connector. We took these screws out, however
nothing came loose.
I realize what you are saying about the top of the aluminum base support
tube, and it has to be separated from the larger diameter fiberglass
tube...but what about the connector portion of the antenna coming out.
Does it slide out with the towards the antenna top or come out of the
bottom of the base aluminum tube.
Incidentally, for this PD-200 antenna for 220, the top element has the
bandwidth inscribed on the copper with the two operating frequencies.
Thanks for your first response. I did take digital pictures of the
various sections and parts, but the big picture will come after
separation of the base parts.
73, Tony, K3WX
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