[1000mp] the battle of the front ends ...

Wed, 13 Feb 2002 16:33:13 -0500

Would you really notice the difference? Another thing for sure each Mark V
or Plain MP do not test out the same.........you can have a Mark V show
better results than a Plain MP....two Mark V's side by side will typically
have different test figures and so will two plain MP's.%%^^*&(&)^_&*()+(_((+

----- Original Message -----
From: "ROBERT EVANS" <[email protected]>
To: <[email protected]>
Sent: Wednesday, February 13, 2002 4:23 PM
Subject: Re: [1000mp] the battle of the front ends ...

> Yes..
> For example, if you had a ft1000mp, but sold it so you could
> upgrade to the mark five you lost five dB in performance.
>
> This means that a station can be seven times weaker and cause
> the same distortion. Or, if all the interfering stations were
> of similar amplitude, one station will distort the signal
> of the desired station in the mark V as much as seven such
> stations did with the non-mark V mp.
> (This is a rule of thumb description of the effect)
>
> The 5 in mark 5 seems to refer to 5dB degradation in front-end
> performance both in IMR and blocking.  Even if it isn't 5dB,
> the prospect of upgrading to a radio that has a receiver with
> poorer or even worse performance is undesirable.
>
> But, I doubt it isn't true for all frequencies within a band
> and probably not true for all bands.  The variation could be
> significant enough to swap the relative performance on another
> band.
>
> Also, the K2 is ham band only.  While I know the front-end is
> designed to be truely robust (and it is), alignment over
> a narrow band with a actual measurement ( set-up to resolve
> IMD performance ) could push the envelope for a special case.
>
> BCNU DE N2LO~>
>
>
> [email protected] wrote:
> >
> > While I find these numbers interesting, my question  is are they
> > statistically different enough to make a difference? Particularly the
> > difference between these 5 rigs.
> >
> > ICOM IC-756 Pro                    104           80
> > ICOM IC-775DSP                 104           77
> > Ten-Tec Omni 6+                    119           86
> > Yaesu FT-1000MP                111           83
> > Yaesu FT-1000MP Mark V  106           78
> >
> > 73,
> > George K3GV
> >
> > DX: Long may it live !
> > If it isn't LOGic it isn't LOGging !
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