I slotted a custom designed 0.25" thick plate for an R65 tower to handle
both Yaesu and Ham IV. The slot was 0.44" wide and 0.232" center to
center of the end mill travel. So, it is next to impossible to drill a
second hole since it overlaps the existing hole. A carbide burr or file
are your options although you might start with a smaller diameter hole
that doesn't overlap the existing one. Yaesu uses 8mm bolts, be sure
they don't bottom in the casting with the thinner HDX mounting plate.
The 0.44" slot width was for subsequent hot dip galvanizing of the
plate, you don't need that width for 8mm or Ham IV 3/8" bolts.
Grant KZ1W
On 5/15/2015 3:32 AM, David Robbins wrote:
I have a US Tower HDX 572 that has a rotator plate drilled for a Ham
IV rotator. I need to install a Yaesu SDX 2800 rotator. I believe the
Yaesu requires a different mounting hole pattern. Does anyone have
tips / ideas on how to most easily make the alteration to the existing
mouting plate?
I recommend a drill.
David Robbins K1TTT
e-mail: mailto:[email protected]
web: http://wiki.k1ttt.net
AR-Cluster node: 145.69MHz or telnet://k1ttt.net
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