[WriteLog] Hum in Audio

[Bob Naumann - N5NJ]

Where do you have the computer audio connected to on the radio?  =


> ------------Original Message------------
> From: "Magnus A" <sm6wet at telia.com>
> To: <writelog at contesting.com>
> Date: Sun, Apr-4-2004 4:51 PM
> Subject: Re: [WriteLog] Hum in Audio
> =

> Hello Irek!
> =

> I do use a transormer!
> =

> 73 Magnus
> =

> ----- Original Message ----- =

> From: "VE4COZ" <ve4coz at shaw.ca>
> To: "Magnus A" <sm6wet at telia.com>
> Sent: Sunday, April 04, 2004 7:09 PM
> Subject: Re: [WriteLog] Hum in Audio
> =

> =

> > Hello Magnus
> >
> > You need to use transformer between sound card and radio input.
> > {Ground loop}
> >
> > Good luck
> > 73, Irek  VE4COZ
> >
> > _______
> > _________________________________________________
> >
> > R   73 de  Irek     VE4COZ    ex  SP6COZ
> > T   Winnipeg, MB. The RF black hole and aurora zone.
> > T   Noise, Noise.  Solid noise even s9  sometimes  !!!!
> > Y   Email  - ve4coz at qsl.net  or   ve4coz at rac.ca
> >     Amateur Homepage  - http://www.qsl.net/ve4coz
> > ________________________________________________________
> >
> >
> >
> >
> >
> >
> > Magnus A wrote:
> >
> > >I recently purchased Writelog but is not yet been using it as I been
> > >experimenting geting everything working.
> > >One thing is though that I have to get fixed before I can use it.
> > >
> > >It a bad hum/distortion on my transmitted audio but it does not come f=
rom
> > >computer audio.
> > >
> > >One night I had set up writelog and was trying to decode som CW and RT=
TY
> > >just for fun, later that evening was a local 6m contest and using the
> same
> > >FT-920 as I had to decode with I used on the 6m contest.
> > >
> > >I was getting bad results and nearby station told me the truth that I
> > >sounded distorded or maybee even had a carrier on SSB.
> > >
> > >After alot of experimenting with changing PSUs and microphones I just
> > >disconnected the wireing going to my radio from the computer (not the
> > >RS-232) and all of a sudden the problem was gone.
> > >
> > >The was I did this was to test to record myself with the built in voic=
e
> > >recorder on the ft-920. If computer was connected to the radio and I
> played
> > >up my recording I would sound distorded, if I unhooked the wires I wou=
ld
> > >sound great.
> > >
> > >* Note. I did not use the voice keyer, I was simply using the Heil
> headset
> > >into my Mic port on the 920.
> > >Later I tried to connect my original handmic and got the same problem
> when
> > >my computer was rigged to my 920.
> > >
> > >I have also tried to ground my rig to the chassi of the computer but I
> have
> > >the same problem still.
> > >
> > >Please help
> > >
> > >I been looking thru archieves but missed any info that might help me.
> > >
> > >73 Magnus - SM6WET (8S6T in contest)
> > >
> > >_______________________________________________
> > >WriteLog mailing list
> > >WriteLog at contesting.com
> > >http://lists.contesting.com/mailman/listinfo/writelog
> > >WriteLog on the web:  http://www.writelog.com/
> > >
> > >
> > >
> =

> _______________________________________________
> WriteLog mailing list
> WriteLog at contesting.com
> http://lists.contesting.com/mailman/listinfo/writelog
> WriteLog on the web:  http://www.writelog.com/
> =