Binary Channel Selection on a 16 Channel Syntor-X by Earl S. Garber N3EG.
Web page maintained by Mike Morris WA6ILQ.

Ground control head connector pins 12,16, 23 and 29 to force the Syntor-X to go into binary channel select mode.
The rotary channel select switch on the standard Syntor-X head has 16 positions.

Channel	Pin 25 Binary Value 8	Pin 24 Binary Value 4	Pin 17 Binary Value 2	Pin 13 Binary Value 1
1	X	X	X	X
2	X	X	X
3	X	X		X
4	X	X
5	X		X	X
6	X		X
7	X			X
8	X
9		X	X	X
10		X	X
11		X		X
12		X
13			X	X
14			X
15				X
16