[TowerTalk] Add on 3" mast brake?

[john at kk9a.com]

Yes the larger prop pitch motors have a lower gear ratio but the gear box is
larger and considerably heavier so I assume it is stronger.  I am not sure
if the medium has any more turning torque than the small or how resistance
to back turning compares. Most rotators made for ham radio do not hold up
well for medium to large antennas so you have a tough problem.

I wonder who (if anyone) is working on prop pitch motors these days?

John KK9A




Grant Saviers KZ1W wrote:

<snip> The small PP I had from K7NV showed a surprising amount of backlash,
more than Kurt thought it should have.  He also commented that the small
unit has the highest total gear reduction and thus the most resistance to
turning.  I have a medium PP that needs rebuilt, but am not sure I want to
get into it and where would I get parts?

Grant KZ1W