Instruction manual

www.alfaradio.ca AlfaSpid Rotator Page 19
Page 19 of 23 A lfa Radio Ltd. 11211 - 154 St. Edmonton, Alberta, Canada T5M 1X8 780 466 5779
AlfaSpid_Rotator_RAK_Manual_Sept15_2008.doc
Relays chosen should be suitable for the proper coil voltage as well as appropriate
current carrying capability. A relay capable of 5 to 10 amps DC is adequate. The
diode in series with Relay K1 is any general purpose 1 amp style such as the
1N400x series. If the motor rotates incorrectly, simply reverse the leads to the
motor or from the External DC Supply.
The controller also has the capability to, with a small modification, allow you
to input your external DC voltage into the unit and use the internal relays to control
the rotator as usual.
This information is presented as a guide to help the user realize a solution to
the long cable run situation.
If you do not feel comfortable wiring basic circuitry to do this, please contact
A lfa Radio Ltd. (www.alfaradio.ca) for a pre-wired solution.
Prepared for A lfa Radio Ltd by VE6JY Don Moman Dec 6/2001