[Towertalk] Ham IV vs. Ham M

[K7LXC@aol.com (K7LXC@aol.com)]

In a message dated 1/17/03 8:38:34 AM Pacific Standard Time, 
na9d@speakeasy.net writes:

> 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?

    Externally the upper rotor tops are different - the neck that holds the 
mast clamp is much thinner on the older rotators. I think those skinny types 
are Ham M's. 

Cheers,
Steve     K7LXC
TOWER TECH