[TenTec] Paragon II audio help
Duane A Calvin
ac5aa@juno.com
Wed, 9 Jan 2002 16:01:51 -0600
I use one of these in my car - works great!
73, Duane AC5AA
On Tue, 08 Jan 2002 19:54:08 -0500 " Bob, WB2VUF" <wb2vuf@qsl.net>
writes:
> I've been using a Motorola speaker that I got from Hosfelt
> Electronics.
> It sounds better than the external Ten Tec speaker, especially on
> cw.
>
>
> Bob WB2VUF
>
> Robert & Linda McGraw K4TAX wrote:
> >
> > David & company;
> >
> > My experience with audio indicated that there is room for
> improvement in the
> > audio chain of most amateur receivers. However, when one
> evaluates the
> > performance, one must ask, are we expecting performance of a
> "communications
> > receiver" or a "Hi Fi receiver"? For me one of my "new" sidelines
> is 160M
> > AM, full bandwidth high level modulation, with a receiver having a
> bandwidth
> > of at least 12kHz in the IF and the audio pass band to follow.
> Wow, what a
> > difference.
> >
> > In the audio path, changing from electrolytic caps to non-polar or
> poly caps
> > may make a difference in some cases. One other area of weakness
> and most
> > often is the speaker and its enclosure that is provided with
> today's modern,
> > compact, radios. A good speaker, and not necessarily a Hi Fi
> speaker, will
> > add improvement to most any radio. I use a JBL 10" bass reflex
> design in a
> > solid wood cabinet. It's very efficient down to 100Hz or so,
> therefore a
> > couple of watts of audio really makes it talk. It has a nice
> roll-off
> > starting at about 5KHz so the hiss and etc is not objectionable.
> >
> > I agree, external EQ's, amps and the like are often "patches" but
> if they do
> > the job that one wants done, then I say "do it".
> >
> > 73
> > Bob K4TAX
> >
> > ----- Original Message -----
> > From: "David McGinnis" <n7mjw@yahoo.com>
> > To: <tentec@contesting.com>
> > Sent: Sunday, January 06, 2002 6:17 PM
> > Subject: [TenTec] Paragon II audio help
> >
> > > Help with Paragon II audio
> > >
> > > I have had a Paragon II radio for a while and have
> > > always thought the audio
> > > sounded "weak" or mushy. What I mean is the signals
> > > dont have seem to
> > > jump out like some other rigs. This is on SSB. For
> > > instance comparing to a
> > > Harris RF-350, the signal strenghts are the same and
> > > are of the same quality
> > > between the two, but everything on the Harris seems
> > > clearer and easier to copy
> > > than the Ten Tec. The Ten Tec has a nice receiver,
> > > and signals really do sound
> > > 5/9 at levels well below other receivers, but those
> > > same signals seem flat in
> > > response and dont stand out like they should. This is
> > > kind of the reverse of
> > > what Bob Heil says about microphones.
> > >
> > > I've been through this in the past with another rig
> > > and have replaced the diodes
> > > in the product detector ring and have had positive
> > > results. The Paragon II doesn't
> > > seem to have a simple diode detector ring however. I
> > > have even clean up hiss in
> > > audio section by replacing electrolytic capacitors
> > > with polyester bi-polar caps.
> > > The Paragon does not seem to have the hiss problem. I
> > > do not believe "cleaning up"
> > > with DSP is ever a cure for a problem in the receiver
> > > and wont go there.
> > >
> > > The radio has been back to Ten Tec for a re-alignment.
> > >
> > >
> > > What I'm asking from the group is if anybody has
> > > explored this ground with the
> > > Paragon series of radios. I have never had an Omni to
> > > compare this to, but I
> > > do believe the problem is common in some Amateur
> > > equipment. I like so much else
> > > about this rig that I would like to "fix" or "improve"
> > > it.
> > >
> > > Thanks in advance.
> > > Dave
> > > N7MJW
> > >
> > >
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Duane Calvin, AC5AA
Austin, Texas