[Lowfer] RE: Laptop problem with ARGO

Wed, 17 Dec 2003 21:50:47 +1300

1:1 xfmr then "100:1" resistive divider works well here (100k & 1k)- what
you need depends on you 'line' level I guess.

Dave
ZL3FJ

----- Original Message ----- 
From: "Alberto di Bene" <[email protected]>
To: <[email protected]>
Sent: Tuesday, December 16, 2003 11:51 PM
Subject: [Lowfer] RE: Laptop problem with ARGO

> "Bill Ashlock" <[email protected]> wrote:
>
> >The problem is that Jay's 115mi QRSS signal here in the shack, is strong,
> >but blurred in the horizontal direction to the extent that it's difficult
to
> >make out the call. The sensitivity setting doesn't seem to help. My
regular
> >computer in the shack does a good job with Jay's signal and produces nice
> >dogbones and plenty of intercharacter spacing.
> >
>
> Bill,
>    the makers of notebooks have found another corner to cut to spare a
> few cents, and that is
> the line input. If you buy today a notebook, you will find that it has a
> microphone inpur, but not
> a line input. The audio coming from an R75, or any other radio, is too
> strong for the mike input,
> and tends to saturate it, even at low volume settings. The best bet is
> to build an attenuator,
> let's say 20:1, using a couple of resistors. I think that 18 kohm  plus
> 1 kohm could do, though
> I haven't tried it.
>
> 73  Alberto  I2PHD
>
>
>
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