Question relating to dishes …

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G8PEF
Posts: 176
Joined: Mon Oct 30, 2017 6:42 pm

Question relating to dishes …

Post by G8PEF » Wed Jan 31, 2018 7:27 am

Here's a general question about dishes for the consideration of the collective wisdom …

Apart from the obvious 'advantage' of being able to feed it from directly behind the dish, what are the advantages of cassegrain dishes? Any disadvantages?

Also, I'm getting conflicting info from Internet searches about what shape the main dish is - is it the same shape as a normal dish (ie parabolic)?
What I'm really asking, I suppose, is that if I have a cassegrain dish, can I remove the sub reflector and use it as a PF dish?

John

g8gtz
Posts: 1736
Joined: Wed Apr 07, 2010 6:26 pm

Re: Question relating to dishes …

Post by g8gtz » Wed Jan 31, 2018 8:36 am

Hi John,

There's another thread running on a very similar topic - viewtopic.php?t=5356&p=14794#p14794

Might be worth reporting your question there...

73 Noel

G8PEF
Posts: 176
Joined: Mon Oct 30, 2017 6:42 pm

Re: Question relating to dishes …

Post by G8PEF » Wed Jan 31, 2018 9:29 am

Haha, OK, Noel... I had read that thread but started a new thread as I didn't want to be seen to be 'hijacking' the Graham's thread :)

I'll add my post to that one.

John

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