Another Happy Customer

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tek2000
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Another Happy Customer

Post by tek2000 » Tue Aug 13, 2019 2:38 pm

All,

I was browsing the net and came across an interesting modification to a Tek2000 dish being used for moon bounce experiments by amateur radio astronomy enthusiasts.


tek2000_modified.png


He's done a detailed write up which is well worth reading. For those who are curious, the moon will reflect about 20% of the microwave power beamed towards it, which means it is possible to establish a radio link relay for communicating over long distances here on Earth. Unfortunately, the moon is not in geostationary orbit with respect to the Earth, so you need a steerable antenna to track it. Also, unfortunately, due to noise constraints, you can only transmit and receive at very low bit rates if you use 12' antennae.



http://www.prutchi.com/wp-content/uploa ... l-N2QG.pdf
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Gregtheham
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Re: Another Happy Customer

Post by Gregtheham » Tue Aug 27, 2019 7:44 am

Nice set - up! For those interested, moon bounce (EME= earth moon earth) is a very cool amateur radio specialty, but you don’t need a 12 ft dish. Using free software, it is possible to have a contact with larger stations, using a long yagi, and about 100 watts ...that’s at 2 meters! (144 MHZ)...certainly bigger is better though.

Naturally, much higher frequencies are also used, but with a smaller group of players.

The really cool thing is the DSN aspect...which is monitoring planetary orbiters and space exploration probes! One Ham recently discovered a probe operating that was thought lost/defective...certainly a nitch hobby, ( requiring excellent gain and loss management) ...but pretty cool to read about for us space/radio/satellite/ Astro nuts.

Meteor scatter is also cool, and very easy with a 50mhz beam and 50 watts..

belter-one
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Re: Another Happy Customer

Post by belter-one » Wed Aug 28, 2019 11:30 am

Awesome read!

It looks like this person has re-engineered a 12 foot mesh dish in an incredible manner! :respect:

Thanks for sharing,

belter-one

P.S. Can we share this pdf file or is it now owned by tvrosat?

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Re: Another Happy Customer

Post by tek2000 » Thu Aug 29, 2019 1:54 pm

The pdf is owned by the administrator of prutchi.com

You may need to ask him for permission to use on your site or elsewhere.
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http://www.tek2000.com
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(I am not on this forum often and don't check forum PMs, so please email me for faster service)

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