Glen,
Have you seen my radio-telescope threads? I was observing 1.42GHz hydrogen emissions from Milky Way.
http://www.iceinspace.com.au/forum/s...d.php?t=113407
http://www.iceinspace.com.au/forum/s...d.php?t=148874
What do you want to do? Which frequencies you have in mind?
BTW, I wouldn't place antenna like this on EQ6 (unless it has already worn out gears...). Also, FOV of that antenna is ~8° for 1.42GHz, so in my opinion a modification to standard satellite antenna actuators (perhaps coupled with encoders and David Ek interface) is more than adequate.
Anyway, this is going to be my next step - coupling antenna with CdC... when I move to Ballarat.
Then perhaps I will try OH emissions.. however they are significantly weaker than H-line