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Re: AMSAT educational kit receiver idea?



Hi Bob,

You can buy a complete 2-meter dual-conversion receiver kit
that will drive a speaker from here:

http://www.mpja.com/productview.asp?product=6599+RB

In quantity 5+, they are only $29.95 and in singles they
are only $34.95.

This is not a great receiver but it ought to be more than sufficient
to hear the ISS on 145.800.

73,
Tony AA2TX

---


At 02:49 PM 11/20/2006, Robert Bruninga wrote:

>Here is an idea for a cheap educational receiver kit for
>AMSAT/ARRL/ARISS? to provide as part of their outreach to youth:
>
>http://www.ew.usna.edu/~bruninga/amsat-radio.html
>
>This design uses a simple $9 FRS FM Walkie Talkie as the
>receiver and a -converter- kit to convert 145.800 from the Space
>Station to 462.5625 MHz.  All of the mechanical parts in this
>concept total about $3 and if we can get the electronics to
>under $20 then this could be a great receiver kit for students
>to listen to the Astronauts on the ISS and Space Shuttle.
>
>My original proposal back in October had a different mechanical
>arrangement:
>
>http://www.ew.usna.edu/~bruninga/amsat-ideas.html
>
>But this new juice-can concept solves many problems by not only
>providing a good mechanical housing for the device, but it also
>provides the IF shielding necessary to prevent any local FRS
>activity from bleeding through the receiver.  It also improves
>the coupling between the converter and the receiver.
>
>Anyway, I think this idea is a nice circuit design challenge
>sith lots of potential.  This juice-can mechanical concept is
>intended to simplify some of the construction challenges for
>students.  Can anyone design a cheap converter kit?
>
>de WB4APR, Bob
>
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