[amsat-bb] Re: Two Sats

w7lrd@comcast.net w7lrd at comcast.net
Sun Sep 10 09:11:08 PDT 2006

I and a few others "played" with this concept back in the RS etc days.  I forget (senior moment) the specific satellites and frequencies involved.  I was though a bit complicated.  Tracking two satellites (using a Commodore 64) and figuring muliple doppler effects, due to satellite relative speeds.  Anyway it was a fun endeavor.  With HEO's you could cover the whole planet.
73 Bob W7LRD

-------------- Original message -------------- 
From: sco at sco-inc.com 

> If two sats like Hamsat (or Echo) were in orbit at the same time and 
> could see each other ... 
> Could User#1 uplink to Sat-A and then Sat-A would link to Sat-B 
> (probably on one of the higher microwave bands) then Sat-B would 
> downlink to User#2 and User#2 would uplink to Sat-B and be relayed to 
> Sat-A and down to User#1 ?? 
> If this could be done there would be a much larger footprint and 
> launch costs would be far less expensive, correct? 
> Les W4SCO 
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