[net.aviation] Hand held 720s

esac@ihuxp.UUCP (Bill Adams) (02/19/84)

I recently purchased a Terra TPX-720 radio  (under  $400)  for  IFR
backup in case of radio failure.

I was told by the  TERRA  people  that  unless  I  had  an  outside
antenna,  my  transmission  distance  would be limited to a mile or
less.  I tried it out with Rockford approach control and got  about
eight  miles  with  no  reduction  in  clarity  and  only  a slight
reduction in signal strength.

I could have gotten more, I think, but didn't test any further.

I am thinking about modifying the aircraft to provide access to one
of  the  outside  radio  antennas  with  coaxial  switches  and BNC
connectors.  Anybody out there have any experience with  hand  held
720s?  Where can I get parts for such a modification for under, say
$20?
-- 



               Bill Adams     ==>  AT&T Communications  <==
               ihnp4!ihuxp!esac
               (312) 979-6267