[UK-CONTEST] Not External Sound Card advice

[Danny Higgins]

Alex,

A couple of months ago I bought a 2 port serial RS232 card from Lindy, part
No. 51277.  £15.99 inc VAT + £2.99 P&P.  Beware that some (e.g. Maplin) do
not work with XP Pro.  This one is fine.  See www.lindy.com

73

Danny, G3XVR

-----Original Message-----
From: uk-contest-bounces at contesting.com
[mailto:uk-contest-bounces at contesting.com] On Behalf Of ALEX LISTER
Sent: 19 March 2010 15:46
To: uk-contest at contesting.com
Subject: [UK-CONTEST] Not External Sound Card advice

Never mind running two sound cards which I now do (Both internal)
Anyone know of a cheap solution to running two RS232 ports ?
ie an additional card with 2XRS232.
Perhaps I will end up with an external manual switch but would prefer
something more elegant.

As an aside I had considerable problems with rxd distortion using the sound
card which came with a multimedia machine.
This was not solved by turning off the various Bass boot/Microphone boosts
etc etc.
This was irrespective of decode software and symptoms were seeing more than
one signal from strong stations, 
Reducing input levels to avoid this would mean I lost or struggled to decode
the weaker signals.
A 2nd sound card eliminated the problem.


Alex G8FCQ
G3LRS sec
Member DMUARS
0753 120 1640



--- @ WiseStamp Signature. Get it now




________________________________
From: Alex GM3ZBE <alex at gm3zbe.plus.com>
Cc: uk-contest at contesting.com
Sent: Friday, 19 March, 2010 15:29:06
Subject: Re: [UK-CONTEST] External Sound Card advice

I would be interested to hear advice on this too.  Additionally I would 
like it to be a dongle type a with high enough sample rate to be useful 
for SDR purposes.
Alex

David Gould wrote:
> I have now tried two PCs (1 laptop, 1 desktop) whose soundcards do 
> not have the functionality required to run N1MMsDVK facility.  The 
> problem is the inability to mute the mic input when playing a .wav file.
>
> I guess a Microham interface is the Rolls-Royce solution, but has 
> anyone got any experience or recommendations for an off-the-shelf 
> **external**  (preferably USB)  soundcard that has the required
facilities.
>
> Are there any issues to be wary of when  using an external sound card 
> rather than the inbuilt one?
>
> 73,
> Dave, G3UEG
>  

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