> I just bought a Ham M off eBay and got it today. It looks just
> like my Ham
> IV or at least what I thought was a Ham IV.
>
> What's the difference and how can I tell?
>
> 73,
>
> Jon
> NA9D
>
Jon,
What's the stamped code say on the bottom of the rotator? (if it has a
bottom mast clamp assembly, remove it to expose the flat bottom)
I have a Ham-M here in the shack that says: H IV S1 Nov 88
Meaning: Ham-IV, Series 1, November 1988
Now. Whether it is actually a Ham-M or a Ham-IV, I can't say. It was sent
in for refurbishment a few years ago. I don't know whether the bottom is
the original bottom or not. Also, when I bought the rotator (actually, I
bought the house and the tower, rotator and a TH7 came with it), I was told
it was a Ham-M. :-)
I have a Ham-IV up on the tower that says: H4 S1 Jul 80. It was in for
service recently before replacing the "Ham-M" and I specifically asked for
confirmation it was a Ham-IV. They (MFJ/Hy-Gain) didn't respond to that
request.
Check this out:
Norm's Rotor Service - Identifying Your Rotor
http://users.erols.com/shiacawn/rotors/n_ident.htm
73,
dale, kg5u
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