[1000mp] Real S9
Pete Smith
pete.n4zr at gmail.com
Mon Mar 26 07:12:48 EST 2007
One of the other Elecraft Mini-Module kits is a step attenuator with very
impressive specs for $49.
I'm frankly satisfied just to get the baseline gain back where it should be.
73, Pete N4ZR
At 10:27 PM 3/25/2007, you wrote:
>Hello Pete:
>
>Glad to hear that you have things adjusted to your satisfaction. If you had
>a way of changing the output of the XG-1, you could now run a curve on each
>receiver and see how they track each other, and how accurate they are for
>various input levels.
>
>The Mark V isn't really too bad, as far as S meter accuracy goes.
>Especially above S9 the tracking is very good indeed.
>
>I think you may find that your final adjustment in menu 9-1 was about 1 or 2
>integers below the factory setting. This should bring things into
>calibration fairly well at the S9 level.
>
>I wish I could say the accuracy of the new FT2K was as good.
>
>73 and Happy DXing,
>
>Mike
>W2AJI
>
>Pete wrote:
>
>With the adjustment I made today, both receivers now read the same S-meter
>level on the XG-1 signal, so I think I have a winner. Thanks for the
>info. 73, Pete N4ZR
>
>----- Original Message -----
>From: "Pete Smith" <pete.n4zr at gmail.com>
>To: "All about Yaesu 1000mp" <1000mp at mailman.qth.net>
>Sent: Sunday, March 25, 2007 2:58 PM
>Subject: [1000mp] Real S9
>
>
> > I just finished building the Elecraft XG-1 signal generator.
> >
> > So why am I talking about it here? Because It puts out a calibrated 50 uv
> > on 7040. After I built it, the first radio I hooked it to was my
> > TS-930. S9 right on the button. Then I connected it to my Mark 5. S6!
> >
> > I had thought for a long time that the Mk 5 sounded "dead" compared with
> > the 930, but put it down to DSP, etc.
> > Not long after I got the MK5, I put in the Inrad IF mod, and then a couple
> > of years later I substituted the roofing filter. The radio also has
> > cascaded 400 Hz Inrad CW filters. In the course of doing all that, I
>guess
> > I had turned the IF gain down too far - anyway, using the XG-1, I was able
> > to reset it to ~S9 at 50 uV - certainly sounds like the band is more open!
> >
> > I expect the VG-1 is going to prove very useful, anytime I want to check
> > the performance of my antenna switching or bandpass filtering - and for
> > $40, I can't imagine a cheaper way to do that.
> >
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