PA8W had a great idea for system testing - using the antenna drivers as test signals.  Using about a 200k ohm resistor, I applied the antenna driver signal to the transmitter audio input and attached the rubber ducky to my radio.  North and West lit at 0 and 270 degree spot on but E and South are a little wobbly and interchanged.    The NeoPixel rings are also numbered backwards so more bugs to squash.