Maximum distance from the Prop-2 to a servo?

[ilusion]

I recently tried an experiment where I ran the output of a Prop-2 to an RJ-45 jack, and then connected a servo to an RJ-45 jack. I used a "standard" ethernet cable to connect the two like this:

Prop2-->RJ45-->Ethernet Cable-->RJ45-->Servo

The pins I used were:

White-Orange for  5v+
Orange for GND
WhiteBlue for SIG

This worked fine with a 15' cable, but when I went to a 50' cable, the servo no longer worked. I tried a 25' cable and it worked, but moved somewhat erratically. So, now I'm wondering if there is a specified maximum distance for microcontroller to servo? And second, is there a way to "amplify" the signal to go longer distances? TIA :)

Vern

[JonnyMac]

It's not a Prop-2 thing, it's a servo -- specifically, and analog servo thing -- coupled with the voltage drop through the cable.  If you have clean power near the servo you might run the pulse input through a non-inverting buffer to get it back to a full five volts