[Elecraft] Planning the next filters

[Johan Ymerson]

Yes, the Signalink USB is 16-bit from what I remember. But on the other hand 
alost all rigs have a 16-bit audio DAC so that will be the limiting factor 
anyway (with K3 being the exception with a 24-bit DAC).
 
Probably the biggest problem with the Signalink USB is not the interface 
itself, but the Windows builtin drivers for the ADC. It thinks the ADC is a 
microphone and add +30 dB of gain in software. So those 16 bit's are quickly 
reduced to 6 bits if you are not careful. There are some descriptions (it 
isn't obvious, it is not visible in the normal mixer controls) on the net how 
to set the gain to (almost) 0 dB, but I use Linux so I haven't tried.

/Johan

On Friday, 9 March 2018 15:18:09 CET Raymond Sills wrote:
> And.... isn't it the case that the SignaLink is a 16 bit device?  That
> Tascam US 100 is also 16 bits, but it has been replaced by a model that has
> 24 bit/96 KHz sampling.. indicating a high quality interface.
> 
> 73 de Ray
> K2ULR
> KX3 #211
> 
> 
> 
> -----Original Message-----
> From: Jim Brown <jim at audiosystemsgroup.com>
> To: elecraft <elecraft at mailman.qth.net>
> Sent: Fri, Mar 9, 2018 1:41 am
> Subject: Re: [Elecraft] Planning the next filters
> 
> On 3/8/2018 10:18 PM, Bill Frantz wrote:
> > This problem occurred with a SignaLink.
> 
> That's not a very good interface. It helps to have an clip light or
> other digital level indicator on the interface for the received signal.
> My Tascam US100 has a green signal presence light and a red one for
> clip, which makes it easy to stay out of trouble.
> 
> 73, Jim K9YC
> 
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