[hpsdr] 4 watts out w/ 0 mic gain

[john_eckert at agilent.com]

In SSB the TX from Janus is at 0Hz, plug your headphones into the IQ out
and take a listen. Maybe you will hear a hum, carrier, noise or one channel
is much louder than the other indicating IQ imbalance.  Oh yea, on CW you 
should hear a tone equal to your CW pitch setting.

I'm assumming you did the 'Transmit Rejection' cal with Janus.  The values 
will be different than those from your sound card.

You can also put the display in scope and phase modes to look at the TX signal.

73,
k2ox

> -----Original Message-----
> From: Mike's Joke du Jour [mailto:stepsisters at advnet.net] 
> Sent: Friday, June 29, 2007 8:49 AM
> To: john_eckert at agilent.com
> Cc: hpsdr at hpsdr.org
> Subject: Re: [hpsdr] 4 watts out w/ 0 mic gain
> 
> Hi John,
> 
> 
> Thanks.  I modified initozy.bat to not have the
> mic boost; no difference.
> 
> I don't think that it is coming into Janus.  It
> still shows up with Mic gain at zero, Output at
> zero, and nothing connected to the Mic connector.
> It also appears in CW with key up.
> 
> 
> Mike - AA8K
> 
> 
> 
> john_eckert at agilent.com wrote:
> > ***** High Performance Software Defined Radio Discussion List *****
> > 
> > In 'initozy.bat' the default write of '0x15' provides 20db 
> of mic boost,
> > try changing it to '0x14'.  With the '0x15' setting I had 
> tons of output
> > with zero mic.  All is well now.
> > 
> > I think we need a knowledge base to hold all this stuff.
> > 
> > Regards,
> > k2ox
> > 
> 

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