[amsat-bb] WTB working Yaesu 5400 or 5500 rotor

Jim Jerzycke kq6ea at verizon.net
Sat Nov 8 04:50:04 UTC 2014

It should be almost trivial to add an interface for external control.

The paddle switches on the front control relays to power the motors, and 
the rotors that have an external control input use transistors in 
parallel with the paddle switches to switch the relays.

A piece of perfboard with some small parts, and a connector to mate with 
your PC interface, and you're done.

73, Jim  KQ6EA

On 11/08/2014 03:24 AM, Kevin M wrote:
> Any body on the list have a good idea what a G5400 new in the box is
> worth? I've got one that has been opened but everything
> is still in the plastic bags unopened. (verified everything was packed)
> Thanks Mike KA7HBB
> PS
> Of course that means it hasn't been connected up and tested yet also.
> .
> Not
>   nearly as much as a 5400B... the 5400 (no B) does not have the 8 pin
> DIN jack on the back to hook up an interface for computer control. It is
>   either a strictly manual control rotator or you would have to add your
> own control lines, if that is possible. I don't know, I haven't seen the
>   5400 schematics. Not sure if the motors are the same between the two
> versions and if you could look for a 5400B controller to go with it or
> not. I know the 5600B is wired different and the 5500 is a wired like
> the 5600B but with different connections.
> NOW... if you just left
>   the 'B' off and you actually have a 5400B, the last 5400B I saw listed
> went for about $400 in VGC. I paid $300 shipped for mine about a year
> ago, but it needed a bit of refurbishing and there was a long line of
> folks wanting it; I was the lucky first one to respond to a great deal. A
>   year or so ago, some sold for $500.
> If it's a 5400B, new and
> still packed with grease (not corroded) and known to be in proper working condition,
>   $500 would be my asking price to start out. But as always, something is
>   worth what the market will bear, not what was paid in the past. So... your mileage may vary. And if it's a 5400 (no B) you'd have to
>   find a buyer who doesn't care about computer control and see what you
> could get.
> Just one opinion... hopefully you will get a few more.
> 73, Kevin N4UFO
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