CygnusRFI/README-rotator.md

RFI with Rotator

Sample the RFI in the area, using a rotator.

QUICK & DIRTY

Early pre-alpha, not working yet.

Rotator

The rotator can be in two different positions when sent to 0 azimuth. It can be in a position of one degree minus one, or 359 degrees plus one. The difference is in the cable winding.

If the rotator is at 270 azimuth and is sent to 0, it will go clockwise (looking from above) to 359 then plus one more to 0. If the rotator is at 179 azimuth and is sent to 0, it will go counter-clockwise to 1 then minus one.

So a test using 0 could actually be two different tests, since the 359 + 1 test, the cabling has one more wrap around the mast.

Best to not use 0, and use 1 and/or 359.