[1000mp] audio filters for the Mark V

[J. Mc Laughlin]

Dear John:
    With the many buttons, switches, and knobs on the Mark V, it is easy
to overlook some and their functions.  I do not have the face of a Mark
V right in front of me, so my description may be off a little.
    To the left of the main tuning knob (the large, central knob) about
half way to the left edge of the radio, one will find  vertical banks of
push buttons (and associated LEDs) that are all enclosed within a
cartouche (well, I think that is the technical word for it).  What I am
describing is an almost square, drawn-on-the-face-of-the-radio, closed
line that surrounds the aforementioned push buttons.
    The vertical column of buttons on the left side of the "box" mostly
control AF band pass filters that mostly have utility with digital modes
such as CW.  The four buttons in a vertical column on the right side of
the "box" control a low pass filter, a high pass filter, a bandpass
filter, and the bottom button turns off the filters.
    Somewhere in this mix of buttons is a column labeled with single
letters.  These buttons supposedly invoke some DSP.

    I suggest trying the low pass filter.  If it does not help, then,
whatever the objectionable sound you are hearing is, it is getting into
the audio line farther along the audio path.

    Good luck.  73  Mac   N8TT

J. Mc Laughlin  -  Michigan USA
Home:  JCM at Power-Net.Net

----- Original Message -----
From: "n3drk" <n3drk at triad.rr.com>
To: "J. Mc Laughlin" <jcm at power-net.net>
Sent: Monday, May 31, 2004 10:31 PM
Subject: Re: [1000mp] audio filters for the Mark V


> Thanks for the reply Mac. Dont want to sound like I dont know my rig
but
> just what are you speaking of on the Mark V a push-button low-pass
filter?
> Is it menu driven?
> 73's
> john-n3drk
>
> ----- Original Message -----
> From: "J. Mc Laughlin" <jcm at power-net.net>
> To: "n3drk" <n3drk at triad.rr.com>
> Cc: "1000MP Dec2001" <1000mp at mailman.qth.net>
> Sent: Monday, May 31, 2004 8:38 PM
> Subject: Re: [1000mp] audio filters for the Mark V
>
>
> > Dear John - N3DRK:
> >     I do not know what "the hiss" is nor what "the mod" is.
> >     Coming at your question from the point of view that you are
hearing
> > an excess of higher audio frequency noise when listening to the Mk
V, I
> > suggest the use of the built in, push-button selectable low-pass
filter.
> > Obviously, if the higher frequency audio noise is being generated
after
> > the internal filtering, then a filter between the Mk V and your
> > headphones could be effective.
> >     Using headphones, I do not hear anything that could be called
> > "hiss."
> >     Try the internal filters and report back.
> >         73   Mac   N8TT
> > J. Mc Laughlin  -  Michigan USA
> > Home:  JCM at Power-Net.Net
> >
> > ----- Original Message -----
> > From: "n3drk" <n3drk at triad.rr.com>
> > To: <jcm at power-net.net>
> > Sent: Monday, May 31, 2004 7:27 PM
> > Subject: Re: [1000mp] audio filters for the Mark V
> >
> >
> > > Question is,,,,,,what to do about the hiss coming from the
receiver if
> > one
> > > does not want to install the mod.
> > > 73's
> > > john
> > >
> > >
> > > ----- Original Message -----
> > > From: "J. Mc Laughlin" <>
> > > To: <1000mp at mailman.qth.net>
> > > Sent: Monday, May 31, 2004 7:22 PM
> > > Subject: Re: [1000mp] audio filters for the Mark V
> > >
> > >
> > > > Dear John - N3DRK:
> > > >     Yes.  ... as is true of virtually every Mk V owner.
> > > >     The internal AF filters work well on CW once one has the
signal
> > > > "centered."
> > > >     What is your actual question?
> > > >         73,   Mac   N8TT
> > > > J. Mc Laughlin  -  Michigan USA
> > > > Home:  JCM at Power-Net.Net
> > > >
> > > >
> > > > ----- Original Message -----
> > > > From: "n3drk" <n3drk at triad.rr.com>
> > > > To: <1000mp at mailman.qth.net>
> > > > Sent: Monday, May 31, 2004 3:13 AM
> > > > Subject: [1000mp] audio filters for the Mark V
> > > >
> > > >
> > > > > Anyone using audio filters with the Mark V?
> > > > > 73's
> > > > > john
> > > > >
> > > >
> > > >