[TenTec] paragon audio noise in trasmission

Luca ik5tsw at virgilio.it
Fri Sep 9 14:52:38 EDT 2005


Many thanks for this precious suggestions

73 Luca   IK5TSW
----- Original Message -----
From: "Robert & Linda McGraw K4TAX" <RMcGraw at Blomand.Net>
To: "Discussion of Ten-Tec Equipment" <tentec at contesting.com>
Sent: Thursday, September 08, 2005 10:39 PM
Subject: Re: [TenTec] paragon audio noise in trasmission


> Sorry about the typo, the reference is U10 in both cases.
>
> Bob
> ----- Original Message -----
> From: "Robert & Linda McGraw K4TAX" <RMcGraw at Blomand.Net>
> To: "Luca" <ik5tsw at virgilio.it>; "Discussion of Ten-Tec Equipment"
> <tentec at contesting.com>
> Sent: Thursday, September 08, 2005 3:32 PM
> Subject: Re: [TenTec] paragon audio noise in trasmission
>
>
> > Luca:
> >
> > Check to see that you are getting a mute voltage transition at connector
> > 44
> > pin 2 on the IF/AF board. If so then most likely Q12 has failed or D9 is
> > shorted thus not allowing muting of the audio output stage U10.   Input
> > audio to U1 is supplied via pin 3 of connector 55 and is muted by Q12
> > conducting to ground.
> >
> > Before you dig too deep be sure all the connectors are well seated.  It
> > wouldn't hurt to carefully unplug connector 44, 48, 55 and 50 and then
> > reconnect just in case there is a dirty contact on the mute or ground
> > lines
> > to the AF/IF board.  The current levels are very low  in this circuit
and
> > thus not enough voltage to create a "punch" through on an oxidized
> > connector.
> >
> > 73
> > Bob, K4TAX
> >
> >
> > ----- Original Message -----
> > From: "Luca" <ik5tsw at virgilio.it>
> > To: "Discussion of Ten-Tec Equipment" <tentec at contesting.com>
> > Sent: Thursday, September 08, 2005 2:47 PM
> > Subject: [TenTec] paragon audio noise in trasmission
> >
> >
> >>
> >> Luca wrote:
> >>
> >>> Hi to All
> >>>
> >>> I am new member of this very intresting mail list .
> >>> I have purchase second hand  Paragon 585
> >>> When trasmitting i have the distorted audio in a speaker ,is a truble
?
> >>> Or is normal ?
> >>> You have a possible remedy ?
> >>>
> >>> Sure of your intresting many thanks in anvance
> >>>
> >>> 73   Luca
> >>> _______________________________________________
> >>
> >>
> >>
> >>
> >> Luca:
> >>
> >> Just turn down the monitor control on the back panel. This is a voice
> >> sidetone for checking the speech processor, but it isn't particularly
> >> useful.
> >>
> >>
> >> 73,
> >>
> >> Bob WB2VUF
> >>
> >>
> >>
> >>
> >>
> >> Make sure that the MONITOR level control on the rear panel is turned
> >> down.
> >>
> >> 73
> >> Bob, K4TAX
> >>
> >> Luca wrote:
> >>
> >> Many thanks to all for your answer
> >>
> >> In my Paragon the MONITOR LEVEL , AF GAIN  , RF GAIN ore in  max
> >> counter-clockwise ad i use the dummy load
> >>
> >> The problem to decrease  if i turned down the RF POWER ad increase in
> >> lower band
> >>
> >> I think the   RF retur
> >>
> >> Many thanks in advance
> >>
> >> Luca  ik5tsw at virgilio.it
> >>
> >>
> >>> _______________________________________________
> >>
> >> _______________________________________________
> >> TenTec mailing list
> >> TenTec at contesting.com
> >> http://lists.contesting.com/mailman/listinfo/tentec
> >>
> >
> >
> > _______________________________________________
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> > TenTec at contesting.com
> > http://lists.contesting.com/mailman/listinfo/tentec
> >
>
>
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