Jump to content

Stargazers Lounge Uses Cookies

Like most websites, SGL uses cookies in order to deliver a secure, personalised service, to provide social media functions and to analyse our traffic. Continued use of SGL indicates your acceptance of our cookie policy.

  • Announcements



Radio Astronomy basic dish setup

Recommended Posts

Steve714    3

I am thinking of setting up a basic RT and am limited to a dish diameter of around 1.9m (mesh, 2.8mm holes). I think this means that I'm going to be working at X- and/or  C-band frequencies since the beam width will be too large for L-band work. Both C- and X-bands have potential problems though since gain is likely to be low for C and the dish quality requirement at 10GHz of being accurate to 1/10 wavelength might be in question. If anyone has any comments on this I'd be very grateful.

My second issue is regarding signal conditioning. I was planning to use an SDR (eg Funcube pro +) at the spectrum end of the circuit. Does this require the signal to be downconverted using an LNB? If so, is it necessary to have the LNB positioned on the dish with an appropriate feed or is it better to have a matched feed with an amplifier on the dish and the LNB or similar further downstream? Any comments or recommendations to pieces of kit here would be great.

  • Like 1

Share this post

Link to post
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now

  • Recently Browsing   0 members

    No registered users viewing this page.