Mutiple GPS antenna?

[HowardC]

When installing GPS nav/com plus moving map. Is there any advantage to install 2 GPS antenna?

 

[gismo]

When installing GPS nav/com plus moving map. Is there any advantage to install 2 GPS antenna?

You will normally need one antenna for each GPS receiver. If the "moving map" has no internal GPS receiver (e.g. EX500 or GMX200) you only need one GPS antenna, but if it's got an internal GPS receiver (Ee.g. GNS530) then it needs it's own antenna. The Aspen has such a receiver but the antenna is built into the magnetic/air temp sensor that comes with it.

And FWIW, there's no technical reason why two GPS receivers couldn't share one antenna but AFaIK there's no approved GA GPS receiver that will do so.

 

[HowardC]

Thanks, Wahtskeer.
I'm adding a 396 with 300xl.
1 less thing for my mind to wonder.