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Message-ID: <584798.42084.qm@web63602.mail.re1.yahoo.com>
Date: Thu, 13 Jan 2011 13:19:36 -0800 (PST)
From: Andy - KU4XR <ku4xr@yahoo.com>
To: " European  &UK\) and MedFer bandsDiscussion of the Lowfer \(US" <lowfer@mailman.qth.net>,
  Part-15 Yahoo <part15@yahoogroups.com>, rsgb_lf_group@blacksheep.org
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Subject: Re: LF: Re: [Lowfer] XR4TN WSPR updates
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--- On Thu, 1/13/11, jrusgrove@comcast.net wrote:

> A non linear final (such as Class D complimentary pair) is
> not suitable for transmitting a "Digi signal of any kind".
>=20
> Jay W1VD  WD2XNS  WE2XGR/2=20
 - - - - - - - - - - - - - - - - - - -  -- - - - - - - - -=20

> " of any kind ". < A poor choice of words on my part there Jay;
if one is planning to use the Class " D ", or " E " configuration.
Of course the complimentary pair can be configured " linear " and
then the " of any kind " wording would not be in-correct in that case.



Andy - KU4XR - EM75xr - Friendsville, TN. USA

LOWfer Beacon " XR "=20
=20
Coordinates:  N:  35=BA 43' 54" - W:  84=BA 3' 16"



--- On Thu, 1/13/11, jrusgrove@comcast.net <jrusgrove@comcast.net> wrote:

> From: jrusgrove@comcast.net <jrusgrove@comcast.net>
> Subject: LF: Re: [Lowfer] XR4TN WSPR updates
> To: "Discussion of the Lowfer (US, European, &UK) and MedFer bands" <low=
fer@mailman.qth.net>, "Part-15 Yahoo" <part15@yahoogroups.com>, rsgb_lf_gr=
oup@blacksheep.org
> Date: Thursday, January 13, 2011, 3:26 PM
> >A final note on this post to the
> US lowFERs.. Getting a WSPR, or
> >Digi signal of any kind on 1750 meters is fairly
> simple.. An HF
> >Tranceiver, run thru a Transverter, and into the
> traditional
> >Complimentary Pair PA will get you going.. Something to
> think about:
>=20
>=20
> A non linear final (such as Class D complimentary pair) is
> not suitable for transmitting a "Digi=20
> signal of any kind". Non linear amplifiers can be used for
> frequency modulated signals likeWSPR,=20
> WSJT, RTTY, Navtex, MFSK etc ... but not for amplitude
> modulated signals like WOLF, PSK, QPSK etc.
>=20
> Jay W1VD=A0 WD2XNS=A0 WE2XGR/2=20
>=20
>=20
>=20