[600MRG] Nice Discovery

[Edward R Cole]

Well its not a 100w radio but the K3 with new 
synth and the new K3s both cover 630m.  They 
operate at the transverter level of 1mw so you do need an amplifier.

In my case I used my K3 on 495-510 KHz with its 
original synthesizer (tuned down to 490-KHz) and 
received using my SDR-IQ.  I had to reduce output 
to 0.1mw to keep from overdriving my modified 
100w NDB transmitter.  I modified it by removing 
the xtal LO state and capacitively coupling the 
K3 drive at that point.  The NDB covers from 
200-KHz to 600-KHz running on 55vdc from its own 
ac power supply (my unit had xtals for 256-KHz).

The new synth board combined with a modified 
general coverage IF filter extends Tx/Rx into the 
630m band and below.  These changes are standard 
in the new K3s model.  However the 100w optional 
HF/6m amp does not work below 160m.

BTW nice article by G3XBM in Sept. 2016 QST on 
building a 80m to 630m transverter running 15w 
output. I had once considered offering a 25w 
transverter using a 10-MHz LO for use with the K3 
but that is now unnecessary with the addition of 
the new synth board to a K3 or buying the new K3s.

Good to hear that more equipment is capable of 
operating on 630m since that should help 
occupancy of a new ham band once it has be established.

73, Ed - KL7UW

At 06:27 PM 9/5/2016, Neil Klagge wrote:
>100w on 630m, wow, that is great Dick. That is 
>the first one I have heard of other than the CW 
>only Juma radio.  I am assuming that the ANAN-200d does Digital modes...??
>
>Tnx for info.
>
>*´¨)
>¸.•´¸.•*´¨) ¸.•*¨)
>(¸.•´ (¸.•`   Neil
>
>My Faith website: http://neilsfaith.webs.com/
>My ham radio websites: http://w0yse.webs.com/ and http://wg2xsv.webs.com
>
>
>
>
>
> > From: dick.bingham at gmail.com
> > Date: Mon, 5 Sep 2016 19:15:22 -0700
> > To: 600mrg at w7ekb.com
> > Subject: [600MRG] Nice Discovery
> >
> > Greetings everyone
> >
> > I just made a great discovery - my new SDR-radio, an Apache-Labs ANAN-200D,
> > provides up to 100-watts on 475KHz. Now, I have to build a LPF filter to
> > eliminate the harmonics, and I am ready to join the big-boys on wd2xsh- ##
> > . . .
> >
> > This is more radio than I ever expected to own. Sure pleased now that my
> > IC-756PRO joined the other Icom radios that failed and are not repairable
> > (so said the Icom folks at their Seattle environs repair center !)
> >
> > The IC-756PRO has joined the following collection of dead radios at my QTH:
> >
> > - IC-551D (now a dedicated WSPR/CW beacon tnx to U3S kit)
> > - IC-740A
> > - IC-751A
> > all with special-parts that are no longer available.
> >
> > It is outstanding that I now have a radio that functions from 630-meters
> > thru 6-meters.
> >
> > The noise blanker in this radio is the best I have _ever_ experienced.
> > Also, having two independent receivers and antenna inputs allows me to
> > adjust the amplitude and phase on a channel to cancel QRM from an
> > interfering  source.
> >
> > 73 Dick/w7wkr and wd2xsh-26 at CN98pi
> > _______________________________________________
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> > 600MRG at w7ekb.com
> > http://w7ekb.com/mailman/listinfo/600mrg_w7ekb.com
>
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73, Ed - KL7UW
http://www.kl7uw.com
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