[1000mp] AW: Subjective Comparison of FT 2000 to Mark V

[Mike Schatzberg]

Hello Uwe:

I have found the installation of the roofing filter module to be useful for
reduction of noise.  Number one, it allows less noise into the front end
because of the narrower band width, and the two stage low noise amplifier
which follows it,  more than makes up for the insertion losses of the
crystal filter in series with the original 1st IF filter.

This allows you to decrease the IF gain in menu 9-1, which in turn further
decreases noise.  I have reduced my setting by 2 or 3 integers, which is
quite significant.

The use of the various DSP settings in the receiver also reduce noise, with
listening to the digital product detector being quieter than the use of the
analog detector.

Finally, although I have found the noise reduction with the on board DSP in
the audio chain to be pretty useless, I have found an outboard solution
which works amazingly well.  I have an article in the March issue of QST
which gives full information on this product.  You can see the page from QST
here on my website: http://home.earthlink.net/~cherokeehillfarm/id2.html

The last improvement is the most significant, and I leave the new DSP module
in line at all times.  I don't think the radio could be much quieter now.
It also automatically adds some attenuation to heterodynes as well, so this
solution is mainly for SSB.  With proper adjustments you won't know the
radio is on until a signal enters the bandpass.  The hiss is all but gone.
You will be able to work S0 signals without headphones.

I believe the radio with all these mods is far better than stock.  I am
interested to see if the ability to work even closer to strong adjacent
channel interference is improved in the FT 2000.

73 and Happy DXing,

Mike
W2AJI

----- Original Message ----- 
From: "Uwe Fleischer" <uwe.fleischer at asco-online.com>
To: <1000mp at mailman.qth.net>
Sent: Tuesday, February 06, 2007 4:02 AM
Subject: [1000mp] AW: Subjective Comparison of FT 2000 to Mark V


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> ______________________________________________________________
>
> Hello everybody,
>
> > Now that the FT 2000 has arrived, and some of you have purchased and
> > operated the new radio, would anyone care to share some performance
> > comparisons against the Mark V?
>
> I would be interested in this comparison too, especially under one aspect:
>
> Beside my Mk-V Field I own a Drake line (R-4C/T-4XC) which was one of the
> outstanding radios in the 60's and the beginning 70's and a TenTec
> Paragon-585. The later suffers from a regularly needed CPU-reset because
of
> hanging up, but I think it's the truth to say, that the RX was also one of
> the upper class.
>
> I like my Mk-V very much, but compared to this other radios, and also to
the
> Yaesu FT-920 of a friend, the Mk-V has by far the most noisy RX. I have
also
> heard this from other hams.
> I find this somewhat annoying, because my favourite operating style is
> DXing. I worked 170 DXCC's in 14 months with 100W, a windom ant and a GP
for
> 30m. So a big percentage of my QSOs are at the limit of readability, where
> the signal-to-noise-behaviour is the limiting factor.
>
> Could anybody tell, if there is a remarkable improvement with aspect to
> noise in the FT-2000?
>
>
> 73 de Uwe, DL8UF
>
>
>
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