Gus and the gang, What about K5OE's array here: http://rfanat.ru/s8/P3D_yagi.htm
Still think that using: 8x4 aluminum tube stock 1" aluminum round stock 1 arduino 4 relays a 24 v ps some limit switches fuses, of course two of the appropriate value pots and maybe some gearing and a few gears, bearings and motors for the drivetrain, should give us a complete -5400 or -5500 clone.
On Wed, Feb 27, 2013 at 8:30 PM, Gus [email protected] wrote:
Returning to this topic...
I'm thinking about a rotator that can handle a small system like the Arrow, or the Cushcraft A270-6s or even the A270-10s. NOT big boomers like the KLM 22/40 el CP yagis!
So we're looking at 1½ - 2 sq. ft of windloading, and maybe 10 lbs of weight. (Including some sort of crossboom, clamps, coax and counterweights. Rear mounted antennas like the Arrow will need a rear-mounted counterweight.)
Anybody qualified to say what that adds up to in terms of TORQUE required from the motors? With a little extra thrown in for a safety margin, maybe?
I think a simple, low-cost, easily reproducible design is probably doable, if we combine our ingenuity and expertise.
-- 73, de Gus 8P6SM Barbados, the easternmost isle. _______________________________________________ Sent via [email protected] Opinions expressed are those of the author. Not an AMSAT-NA member? Join now to support the amateur satellite program! Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb