[1000mp] Real S9

[Mike Schatzberg]

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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