[1000mp] Inrad Bonus Mod

[Harry Yingst]

I did the bonus mod by just paralleling the cap on the top side and it
was very easy to do.

Personally I have found that in cw the rig has a nicer sound with out
the DSP on (AKA DSP off)





--- tbeltran <tbeltran@earthlink.net> wrote:
> 
> I bought the whole group of mods from Inrad for the Mark V  (which is
> everything except an AGC mod) - included in, I think, the frond-end
> mod, was
> a bonus mod (the K9AN main receiver AF filter mod).  It seems this
> mod only
> works when the DSP is not engaged (through the menu).  My question -
> does
> anyone turn off the DSP, and if so, why - or under what conditions
> would
> someone do so?
> 
> So far, I've installed the front-end mod, and it works fine.  The
> next step
> is to install the key-click mod, and the noise blanker mod.  But I'm
> not
> sure about the K9AN mod.  Why not just do it?  I'm a little
> uncomfortable
> soldering on these little boards - I feel quite competent on my
> 75A-4, but
> here - a little concerned, so as little mess'in around as possible. 
> The
> front-end mod was quite easy, but it involved putting wire into
> already
> prepared holes - this is quite different.  I'd hate to screw
> something up,
> especially for a mod that I might not even use.
> 
> From what I've read and seen, the NB mod is a bit scary - could
> really
> scorch the circuit board or damage a trace with too much heat.  I do
> have a
> nice modern soldering station, and small solder, AND, the benefits of
> that
> mod seem significant.  Thanks to everyone who has posted pictures and
> step-by-step instructions - after reviewing them, I feel like I know
> in
> advance what I'll see.
> 
> So anyway, is anyone using their Yaesu with the DSP off, where the
> reduced
> hiss from the K9AN mod is significant?  Tom W6EIJ
> 
> 
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=====
Harry - AB2PN

-

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