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![](https://secure.gravatar.com/avatar/ca602350a076d7cb857761019104d3da.jpg?s=120&d=mm&r=g)
28 Apr '19
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![](https://secure.gravatar.com/avatar/297853fc1f958613e5b83a6a24a4c372.jpg?s=120&d=mm&r=g)
Re: [amsat-bb] Linear Transponder Up and Down link frequency calculator
by Wendy and Terry Osborne 28 Apr '19
by Wendy and Terry Osborne 28 Apr '19
28 Apr '19
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![](https://secure.gravatar.com/avatar/25a6bcc5a487dc152e913ffe16629108.jpg?s=120&d=mm&r=g)
Upcoming ARISS contact with Observatorio Astronómico de Mallorca (OAM) in Costitx, Spain
by n4csitwo@bellsouth.net 28 Apr '19
by n4csitwo@bellsouth.net 28 Apr '19
28 Apr '19
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