Usually disabling the built-in sound system in a PC is simple. You go
into the BIOS configuration and select disable in the list of devices.
Do this first, then plug-in your soundcard and you shouldn't have any
problems.
I do disagree with the statement that most built-in sound systems are
inadequate for PSK31. I think that would be the exception rather than
the rule. I have yet to find a built-in that has problems with PSK-31.
I wouldn't want to attempt a Software-Defined Radio that relies on a
computer's built-in sound system. But the performance requirements for
good PSK31 support is not all that demanding for modern PC's built
within the last 3 or 4 years.
Doug -- K0DXV
Phil Kane wrote:
On Tue, 14 Nov 2006 22:16:50 -0600, Cathy James wrote:
What can I do to increase the audio output level of the K2 for sound
card purposes?
Others have made some suggestions but I'll add mine as responses
to their postings:
On Wed, 15 Nov 2006 07:41:57 -0500, Don Wilhelm wrote:
You may want to look at something like the K2 Fixed Audio Output
that I have on my website http://w3fpr.qrpradio.com . I have a
few boards left, but no kits.
I can second that suggestion...I have installed it in my K2/100
and after my local builder ("I may look great but I don't see
well") worked out a problem of a less-than-perfect wire-to-connector
joint, I am super-pleased with it.
Running PSK31 with AGC off is often a better way to operate.
I've asked this before - how does one turn the AGC off in a
K2/100?
On Wed, 15 Nov 2006 07:49:19 -0800 (PST), Bernard Gaffney wrote:
One other thing, if you're using your PC's
on-mainboard built in soundcard, consider using a
dedicated soundcard. Even a low end Creative soundcard
is infinitely better than the built-in card. And of
course, go to the manufacturer's web page and download
and install the latest driver updates.
We find things out the hard way -- Windows XP will not
recognize a separate soundcard unless the mainboard sound
system is disabled. This was not acceptable for my
istallation.
The way I worked around that is to use an iMic adapter that
plugs into a USB port. XP will then recognize that as a
separate sound system and permit both to operate simultaneously.
The iMic is readily available at places which casrry portable audio
stuff.
On Wed, 15 Nov 2006 09:09:44 +0000, Julian, G4ILO wrote:
You can take the audio output from the external speaker socket at the back
of the rig.
Prior to using Don Wilhelm's Fixed Audio Output option, that's
what I did.
I used a readily-available Y-splitter to pipe output to the
iMic (USB "soundcard") and to an outboard computer "multimedia"
speaker which had a volume control. That way I could use the
K2 for both digital (silent) and regular hamming, and not have
to adjust the K2's audio/RF gain controls back and forth.
--
73 de K2ASP - Phil Kane
Elecraft K2/100 s/n 5402
From a Clearing in the Silicon Forest
Beaverton (Washington County) Oregon
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