[EE] Phase locking DRO's
David Bengtson email (remove spam text)
Well, you have a somewhat complex problem on your hand. You will need
to end up building a Phase locked loop from the cheap DRO's that you
have. You will also need to come up with a very stable reference
oscillator. Here is a rough ASCII Diagram (Fixed Pitch Font, Please)
Osc. Detector Filter |
This is the canonical block diagram of a Phase Locked loop. You have
the Section marked DRO, and you need to design a build the rest of it.
Once you do that, you will be able to use this as a stable RF source
for doing Radio Astronomy and Radio Interferometry. I have seen
several web sites that talk about amateur radio astronomy, and a good
web search will turn up several, including ones that talk about
interferometry. I think that what you want to search for is Project
Bambi. (I don't name them).
GPS correletors are not the thing that you are looking for, although
you could use a GPS receiver to help with the reference oscillator.
The Accuracy of the reference oscillator determines the accuracy of
the entire system.
I would start with building one dish and then extending it to another
This sounds like a fun project.
On Sun, 21 May 2000 00:30:07 -0600, in you wrote:
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