ORIGINAL: SDR-Hammer
I honestly thought this poll along with responses would provide good information about frequency control. I was going to respond how our club recently changed control methods and it’s effects, but since this thread has served more a purpose of throwing sand around the sand box I’ll pass.
Jeesh, it takes all kinds......
Anyway, we have PVC Tee's that have a short length of pipe attached to them to the center of the tee.
All the tee's are threaded onto a pipe that allows the short length of pipe to hang straight down. Each length has the channel number on it.
Just above each row of these hanging pipes is a wire rope going the full length.
When you use the board, you take the pipe that has your channel on it, swing it to point upward, and use your clip to attach it to the wire rope above it.
This system works pretty good in that the club doesn't supply any pins. You bring it to the field.
It's similar to the "cover the channel" method.