Dear All, Thank you for all the replies to this topic which is greatly appreciated.
In conclusion, I guess I will have to either (1) Replace the azimuth portion with a G-800 using a seperate control box for azimuth and elevation or (2) try to replace the azimuth portion with a G-450 rotor. Has anyone successfully tried connecting the G-450 rotor motor directly to the G-5500 control box? 73, Sion Chow Q. C., 9M2CQC, WQ2C On 10 Jul 2013, at 05:10, "Stephen E. Belter" <s...@wintek.com> wrote: > Sion, > > I don't own a G-5500, but I do have both a G-5400 and G-800. The G-5400 > and G-5500 are similar (not identical) judging from the manuals. > > From looking at the manual for the G-5500, the azimuth rotor is completely > different from the G-800. The G-5500 (and the G-5400) azimuth rotor is an > AC motor with two coils and three wires for the motor. The G-800 is a DC > motor with only two wires. (Both systems use an additional 3 wires for > the position potentiometer, so five wires for the G-800 and six wires for > the G-5400/G-5500.) > > The G-450A rotor is similar to the azimuth half of the G-5500, judging > from the manual. However, I'd look for someone who owns a G-450A who can > verify that for you. The G-450A manual omits a schematic and some > important specifications like the motor voltage. You may also be able to > get some help from Yaesu customer service. > > 73, Steve N9IP > -- > Steve Belter, s...@wintek.com > > On 7/9/13 12:41 PM, "Sion Chow Q. C. (9W2QC)" <9w...@9w2qc.net> wrote: > > >> I have a Yaesu G-5500 rotator that has a spoilt azimuth motor while >> the elevation motor works fine. Looking at the specifications >> published by Yaesu, the G-800 rotator seems to be very similar with >> the azimuth motor of the G-5500. >> >> Instead of purchasing a whole new set of G-5500 just to replace the >> spoilt azimuth motor (the control box is working and this has been >> verified with another working azimuth motor), I wonder if anyone has >> tried replacing the azimuth motor the G-800 instead? >> >> Will the G-5500 control box work with the G-800 motor, are there some >> modifications needed, or is this simply not possible? Any pointers >> will be greatly appreciated. >> >> Thank you. >> >> 73, >> Sion Chow Q. C., >> 9M2CQC, WQ2C > _______________________________________________ Sent via AMSAT-BB@amsat.org. 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
