Standard protocol for both El and Az axes. Working with russian Radant version 1.0 - 1.4: Радант AZV-1

Serial port mode 9600 8N1.


------------ Main commands -----------------
<CR> means carriage return

 - Set desired angle:
"Qaaa.a eee.e<CR>", where
aaa.a - azimuth angle value with floating point,
eee.e - elevation angle with floating point.

 - After receiving command 'Q' rotator will send message
"ACK<CR>" if rotator received correct command, or
"ERR<CR>", if there were any mistakes.

 - After reaching destination angle rotator will send
"OKaaa.a[.]eee.e<CR>"

 - Request current axes angle command:
"Y<CR>" without parameters
 - Rotator will reply: 
"OKaaa.a[.]eee.e<CR>"

Command for stop positioning:
"S<CR>"
