Mike et al:
I don't know if it is easy to get in Australia, but my MECA 3-way
divider has been in use for more than two years.
https://www.talleycom.com/viewProduct?rlProdNum=MCA803-2-1.500V
Optimally, you'd use a GPS antenna capable of accepting the summed
voltage from all receivers, eliminating DC blockers which can allow the
failure of one receiver to kill GPS to the other receivers.
The link below is a thread on Rec.Aviation.Soaring, with part numbers
and 30-month-old US prices. The last post is from someone who installed
the same stuff.
Jim
https://groups.google.com/forum/?hl=en#!topic/rec.aviation.soaring/ovwxmlKN3Iw
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