[Elecraft] AGC Setting for PSK-31

[Joe Subich, W4TV]

> Also, since HRD is using PTT via the LP-Bridge so I don't see 
> the radio try to transmit when/if the computer makes sound 
> via the internal soundcard.

That's fine if no other program (or Windows) decides to send 
something to the sound card while you are transmitting.  It 
also works if you don't run anything else while running DM780. 
However, there are reasons for a second sound card ... and a 
need for other station control/interfacing capabilities in 
some of the "purpose built" interfaces. 

If you are comfortable with the capabilities of your built-in 
soundcard, congratulations.   

> Isn't the MicroHAM USB Interface II more than just a USB 
> soundcard? Would it really be required? An additional 0202 
> for data modes would be cheaper.

The USB Interface II is not a sound card ... it is a purpose 
built USB to serial converter with audio isolation transformers. 
The audio capabilities are redundant with the K3 since it has 
transformer isolated line in/line out.  


> -----Original Message-----
> From: elecraft-bounces at mailman.qth.net 
> [mailto:elecraft-bounces at mailman.qth.net] On Behalf Of Adam Koczarski
> Sent: Thursday, January 22, 2009 12:28 PM
> To: elecraft at mailman.qth.net
> Subject: Re: [Elecraft] AGC Setting for PSK-31
> 
> 
> 
> > -----Original Message-----
> > From: elecraft-bounces at mailman.qth.net [mailto:elecraft- 
> > bounces at mailman.qth.net] On Behalf Of Julian, G4ILO
> > Sent: Thursday, January 22, 2009 2:40 AM
> > To: elecraft at mailman.qth.net
> > Subject: Re: [Elecraft] AGC Setting for PSK-31
> > 
> > 
> > I can honestly
> > say
> > I have not noticed any difference either on TX or RX in 
> ordinary sound 
> > card operation.
> 
> I'm using a Thinkpad laptop with my K3. I have a Creative 
> E-MU 0202 connect to an LP-PAN for use with the IF output on 
> the K3. I've been using the built in SoundMAX sound card in 
> the laptop to do the data modes via HRD and DM. So far so 
> good. Would I really see any advantage in using another 
> external sound card for data modes? Isn't the MicroHAM USB 
> Interface II more than just a USB soundcard? Would it really 
> be required? An additional 0202 for data modes would be cheaper.
> 
> Also, since HRD is using PTT via the LP-Bridge so I don't see 
> the radio try to transmit when/if the computer makes sound 
> via the internal soundcard. It's just like having the Windows 
> sounds disabled. If I pull the plug from the laptops sound 
> output I can hear the laptop sound if/when I need it without 
> having to re-enable the sound card.
> 
> Adam - ka7ark
> http://ka7ark.com
> 
> 
> 
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