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Re: Unreliable Terra TX760 transceivers.

Subject: Re: Unreliable Terra TX760 transceivers.
From: Ed <bizzarro@easynet.co.uk>
Date: Wed, 13 Jun 2001 20:52:43
Eh?, what's all this about. I shelled out serious wonga for an Icom A200
panel mount. What is supposed to be wrong with them. Why can they no longer
be licensed. I haven't even fitted it yet!!! Is this to do with the 8.33khz
spacing that is coming in? If so, I have to ask the question, why was I sold
it 2 years ago with not a mention of this fact, and why do we pay a radio
license fee to protect our frequencies when they are clearly not being
protected. And on that subject, I think that the companies who have been
allocated, or will be allocated what were our frequencies should be the ones
to pay for all of our nav and comms equipment!

Hmmm, fat chance of that!!

Ed
----- Original Message -----
From: Bob.Harrison <ptag.dev@ukonline.co.uk>
Subject: RE: Unreliable Terra TX760 transceivers.


> Hi! Jerry.
> I'm given to understand that the Icom is legal inso far as if you
purchased
> it prior to a certain date. Don't ask me what date but I'd bought mine
prior
> to it and the
> Agency licensed it about 3 months ago .
> That still doesn't enable it to receive properly yet!
> But we got by to Sweden and back .
> regards
> Bob Harrison G-PTAG
>
> > -----Original Message-----
> > From: owner-europa@post.aviators.net
> > Subject: Re: Unreliable Terra TX760 transceivers.
> >
> >
> > Unfortunately the Icom panel mount is no longer licensed in the UK. Its
a
> > great radio though. You can still buy them I think saying they are for
use
> > abroad. The only problem could come if you want to be legal and tell the
> > communications agency. I am not sure what you do about model number and
> > serial #. Maybe they don't care????
> >
> > Jerry
> >
> >                                                 LTS@avnet.co.uk
> >                                 http://www.avnet.co.uk/touchdown
> > ----- Original Message -----
> > From: mike.cater <mike.cater@talk21.com>
> > Cc: Alan Stewart <alan.stewart@blueyonder.co.uk>
> > Subject: Re: Unreliable Terra TX760 transceivers.
> >
> >
> > > Hi All
> > > We had every sort of problem you can imagine with both Terra
Transceiver
> > and
> > > Terra Transponder over a couple of years. In the end we
> > concluded that the
> > > equipment was C**p and insisted on a refund. After some
> > discussion!! this
> > > was received and we purchased an Icom Transceiver and a Garmin
> > Transponder,
> > > installed them and have had no further problem.
> > > Having spent thirty years in the electrical industry, TV, Hi Fi,
Video,
> > > Satellite Rx etc, I can only say that quality control as poor as that
of
> > the
> > > aforementioned equipment would have put most of the manufacturers,
with
> > whom
> > > I dealt, out of business.
> > > Were it not for the fact that it is manufactured for
> > "Aviation", it would
> > > cost half the price and be twice as good.
> > > Well that's made me feel better!!.
> > > Best wishes to you all
> > > Mike Cater
> > > G-BVOW #84
> > >
> > >
> > > ----- Original Message -----
> > > From: Alan Stewart <alan.stewart@blueyonder.co.uk>
> > > Subject: Unreliable Terra TX760 transceivers.
> > >
> > >
> > > >
> > > > The following is a response I received from Trimble, regarding
> > > > intermittent problems with the Terra 760D tranceiver installed in
> > > > my Europa.
> > > >
> > > > It may be of some relevance to all of you with Terra kit in
composite
> > > > aeroplanes. It does support a previously aired theory, and there is
> > > > indeed a section in the installation manual, as the respondant
states.
> > > >
> > > > My regret is that I wish I had known this before purchasing the
> > equipment.
> > > >
> > > > Perhaps it offers some hope though, if someone can figure a
> > way to fit a
> > > > 42inch ground plane inside the fuselage.
> > > >
> > > > Perhaps, I should have bought an AWACS !
> > > >
> > > > Alan
> > > >
> > > >
> > > >
> > > >
> > > >  cc:
> > > >
> > > >
> > > >
> > > >  Subject: RE: Unreliable Terra TX760 transceiver.
> > > >
> > > >
> > > >
> > > >
> > > >
> > > >
> > > >
> > > >
> > > > Mr. Stewart
> > > > Unfortunately without an adequate ground plane the 760 will not
work,
> > > hence
> > > > your "aircraft orientation" symptoms, this is due to loss of
> > omni due to
> > > > lack of a ground plane.
> > > >
> > > > As stated in the 760 install manual paragraph 2.3.3, "a
> > minimum of a 42'
> > > > diameter circle with the antenna at center" is required.
> > > > Also the base of the antenna must be bonded to the ground plane.
> > > >
> > > > There may also be leakage at the coaxial connections, the coax
> > connection
> > > at
> > > > the rear of the 760 mounting tray and at the antenna should have a
> > minimum
> > > > of dielectric exposed, too much exposed dielectric and the RF energy
> > will
> > > > short to the coax shield and thus you have no transmission range and
> > your
> > > > audio will sound weak and garbled to the tower or receiving station.
> > > >
> > > >
> > > >
> > > > Regards,
> > > > Tech. Support
> > > > EMAIL:   aerospace_techsupport@trimble.com
> > > > > .
> > > > >
> > > > >
> > > > >
> > > > > -----Original Message-----
> > > > > From:   Alan Stewart [SMTP:Alan.Stewart@marconi.com]
> > > > > <mailto:[SMTP:Alan.Stewart@marconi.com]>
> > > > > Subject:     Unreliable Terra TX760 transceiver.
> > > > >
> > > > >
> > > > >
> > > > > Dear Sir/Madam,
> > > > >
> > > > > I own and operate a Terra TX760 tranceiver in my Europa composite
> > > kitplane
> > > > > here in the United Kingdom.
> > > > > The Terra Radio is unreliable on transmit. Sometimes I can
> > transmit up
> > > to
> > > > > 30 miles or more, on other occasions, selected destinations have
> > > > > difficultly picking up my transmissions from less that 100 yards !
> > Often
> > > > > this improves dramatically when the aircraft orientation
> > changes.  The
> > > > > destinations are frequently high quality airway radio
> > equipment. (e.g.
> > > > > London Information)
> > > > > The equipment is useable, but unreliable. I know of many others
with
> > > > > similar problems with their Terra equipment.
> > > > > Do you offer a solution to this problem ? I am aware that because
my
> > > > > aircraft is plastic, it is difficult to offer a wide 'ground
plane'
> > for
> > > > > the antenna.
> > > > > However, my wide band Icom A20 handheld transceiver does not
suffer
> > any
> > > > > problems
> > > > > !
> > > > >
> > > > > Thanks in advance for any service solutions you may offer.
> > > > >              Regards,
> > > > >              Alan Stewart
> > > > >
> > > >
> > > >
> > > >
> > > > The Europa List is supported by Aviators Network UK -
info@avnet.co.uk
> > > >
> > >
> >
> >
> >
>
>



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