In such a simple application why use a stepper at all? a simple (maybe
synchronous) motor with gearbox and encoder would be much easier and work
just as well as a stepper /encoder combination and is much easier to drive

Just leave the motor running ,watch your encoder and take your samples at
the right time.

Peter van Hoof
-------------
mailto:pvh@vertonet.com
http://go.to/pvh

> It is specific requirement that the motors position is checked
> for every step. The stepper is going to be used to mount an
> antenna to which
> is then going to be rotated through 270 degrees facing a
> transmitter. The goal of this is to form plot of rx'ed signal
> strength against
> angle of antenna to transmitter..