I'm afraid that Dave has under stated the situation here.

Our club has been on this site for over 15 years, last fall two glider pilots discovered our area - specifically a hill some 2 kms to the north of us. They pulled into an access road and set up shop.

To compound this situation each of them arrives with some 4-6 AC. [X(]
All on different channels.

We have asked them to post their channels so that there wouldn't be any problems.

That was before we found out that they were going to occupy 12 channels for the day...

They have been asked to join the club - they don't seem to be interested... [&o]

We have a problem. []