F-15C countermeasures display.

As some of you may know, I'm in the process of restoring
an F-15C cockpit section to be used as a flight simulator.

I recently got an ALR/56(?) countermeasures display for the
project. Unfortunately, none of my reference materials say
much about this display.

Can someone tell me what the small triangle shaped indicators are
for that are around the display screen?

Also, what is displayed on the screen?

We started installing completed assemblies into the cockpit last
weekend and I took a pic that shows the display in question.

http://www.f15sim.com/images/right_cockpit_02aug03.jpg

Thanks for any info you kind folks can provide.

g.

--
Proud owner of 80-0007
http://www.f15sim.com - The only one of its kind.