"Paul Lee" wrote in message
m...
There is nothing wrong with the $22 one. Only for fast birds,
you may want an aerodynamic shaped one.
Composite projects can even build the $22 jobs into wings, etc.


You may not want to do that. It works for COM but may not work for
transponders. They work on pretty high frequencies (around 1000MHz) and it
doesn't take much to shield such signals. The composit may not be a problem,
but your paint or even wet conditions may stop the signal from getting out.

Rob