Message-ID: <20090503224435.g501r41tl6tcw484@webmail4.kuleuven.be>
Date: Sun, 03 May 2009 22:44:35 +0200
From: Rik Strobbe <Rik.Strobbe@fys.kuleuven.be>
To: rsgb_lf_group@blacksheep.org
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Subject: Re: LF: CQ_Test from OR7T
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Hello Gerhard, LF,

thanks for the report.
I just finished a transverter + linear PA and it was one of the first =20
on-air tests.
Transverter: 4.5MHz to 500kHz with 4MHz xtal osc + SBL1 mixer + buffer =20
amp 50mW out
PA: modified 3-30MHz PA, just changed the input and output transformers.
Output is about 100W (1.5A antenna current)

Power is about 4dB down on the other (class D) PA, but modifying an =20
existing PA was the fast option.

I hope to run some first digital tests (PSK, WSPR, RTTY ...) during =20
the next weeks.
Maybe I'll try to build a "big" 500kHz linear PA (> 300W) in summer.
Building a 500kHz modified version of the G3YXM linear PA for 160-40m =20
(http://wireless.org.uk/throb.htm) looks tempting, anyone tried this =20
already ?

73, Rik  ON7YD - OR7T

Quoting "Beckmann, Gerhard" <beckmann.erlangen@freenet.de>:

>
>
> Hello Rik,  LF
>
>
>
> heard your Test_Call (OR7T) on 502,7 KHz in Regular CW-Mode with 559
>
> in JN59LN.
>
>
>
> vy 73 de Gerhard  //  DK6NI
>
>
>
> =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D
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