[TowerTalk] Forther HDR-300 Clarification?

[DavidC]

I am considering buying a used HDR-300.  I am told by folks here that I
should have two concerns:
1.  The HDR-300 is less solid than the newer HDR-300A (I am told that
certain parts are prone to rust and other to break in the 
     HDR-300 versus the HDR-300A).
2.  Some, or all, of the HRD-300 models do not fit standard Rohn 25 rotor
plates.

How do I determine if this particular model will fit a Rohn 25 tower plate
properly?
Can the HRD-300 be upgraded to a HDR-300A?  Cost for refurbishing and
upgrade?

Thanks & 73, DavidC  AA1FA

--
FAQ on WWW:               http://www.contesting.com/towertalkfaq.html
Submissions:              towertalk@contesting.com
Administrative requests:  towertalk-REQUEST@contesting.com
Problems:                 owner-towertalk@contesting.com
Search:                   http://www.contesting.com/km9p/search.htm