[amsat-bb] Fodtrack Serial rotor controller on HamLib

Jim Jerzycke kq6ea at verizon.net
Mon Jun 23 00:39:49 UTC 2014

I would suspect it's using the Yaesu GS-232 protocol.

Jim  KQ6EA

On 06/22/2014 06:08 PM, Greg D wrote:
> Hi folks,
> So all this talk about Gpredict got me to look at updating my own 
> setup, which pre-dated the modern Gpredict capabilites.  But being so 
> archaic, I need some help connecting the dots...
> I have Gpredict / Hamlib talking to my Yaesu FT-736R radio for Doppler 
> tracking just fine, but the rotor is a problem.  My controller is 
> home-brewed, and emulates the subset of the "Yaesu serial protocol" as 
> output from the original DOS version of FODTrack.  The syntax is the 
> letter "W" followed by the Azimuth, a space, the Elevation, and 
> terminated with a carriage return (hex 0d).  Both the Az and El are 
> whole decimal integers.  When I moved to Linux and Predict (the 
> ncurses version) in 2002, I modified the software to copy that same 
> syntax, and all was fine.
> Tab forward over a decade to my question:  What model "Yaesu 
> controller" was FODTrack thinking it was talking to?  I need to find 
> an equivalent model for Hamlib's rotctl daemon, and none of the 
> choices seem to match.  They all seem to want to talk to a single 
> rotor (Az or El, not both).  Is there an equivalent model, Yaesu or 
> otherwise, that accepts "Waaa eee\n" for Az + El positioning?
> Thanks,
> Greg  KO6TH
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