Oh dear,
Hi Frank. Sorry to tell you that your 'tale of woe' is not unique. This
has been discussed on this forum before.
With regard to transmission being 'too loud', I can't comment.
However:
'Transmission unreadable' I'm surprised if it's always unreadable.
Others have found that transmission is unreadable a % of times. (in my
case, luckily, about 10%) and only with certain ground stations
(Tatenhill, Le Touquet !! etc etc)
The questions are:
1/ Does *anyone* out there own a Terra 760D transceiver which transmits
ok 100% of the time ?
2/ If so did it formerly not work, and what solution was found ?
I presume you have fitted the standard Europa antenna in the tail.
However the installation manual supplied with the kit is quite specific
about the antenna required, citing the consequences you have described
if this procedure is not followed.
Therefore, I had always thought that creating a flattish 42 inch
diameter ground plane somewhere on the aircraft (under wing?, back of
fuselage?), coupled with a perpendicular 1/4 wave antenna in the middle
would help alleviate the problem, but those who have tried have told me
this does not help. Farmer George Holt has tried this, I believe. Others
have spent money and sent the kit back to Trimble in the States, to no
avail, I'm afraid.
Best of luck. If you find a solution.... if *anyone* finds a solution,
please tell *all* of us.
Alan
-----Original Message-----
From: forum-owner@europaclub.org.uk
Subject: Terra Radio
Does anyone have the anser to my problem with my Terra Radio. The local
radio shop have tested the radio and found no fault, but in the aircraft
the symptoms are:-
Reception loud and clear
Transmission unreadable with or without engine running, and with or
without intercom switched on, and whether in the air or on the ground
Intercom is normal and clear
When PTT is pressed pilot hears his own transmission clear but far too
loud
(Headphones and mic.work normally when plugged into ICOM handheld)
>Frank Mycroft (G-BWYD)
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