[Elecraft] [K3] K3DSPUPGD

[Joe Subich, W4TV]

Perhaps this information quoted from a private e-mail received from 
Eric within the last 48 hours will provide a definitive answer: 

> ALL of the DSP UPGRADE boards have the LPF that rolls off above 4-4.5 
> kHz in addition to the low frequency response parts.
> 
> We originally thought that the upgrade board would only have the low 
> freq components and wouldn't have the LPF - that's what I originally 
> posted. But we were able to get the LPF board here in time before we 
> shipped the first upgrade, so I added that to the upgraded DSPs at no 
> additional charge.
> 
> Note that we should be referring to the assembly level of the DSP 
> board, not the raw PCB fab revision level. When the LPF is added to 
> the earlier DSP board that already has the other low freq component 
> changes, it rolls the assembly from Rev C to Rev D. All DSP UPGRADE 
> boards are at Assembly Rev D. Also, production K3 DSPs that have all 
> of the changes incorporated in new PCB are also assembly Rev D, since 
> they are functionally identical.
> 
> All K3s currently ship with the Assembly Rev D DSP that includes all 
> the mods.

73, 

   ... Joe, W4TV 
 



> -----Original Message-----
> From: elecraft-bounces at mailman.qth.net 
> [mailto:elecraft-bounces at mailman.qth.net] On Behalf Of 
> srife at swbell.net
> Sent: Saturday, December 19, 2009 10:34 AM
> To: Elecraft at mailman.qth.net; 'Lisa Jones - Elecraft Sales'
> Subject: [Elecraft] [K3] K3DSPUPGD
> 
> 
> 	I find no actual description of what the K3DSPUPGD (REV 
> C) consists of. Does it include the lowpass audio filter that 
> everyone keeps talking about, or is that an additional add on 
> to the REV C DSP board?
> 
> 	Could someone from Elecraft please straighten me out on 
> this so I can determine if there is something additional I 
> need to order for the REV C DSP upgrade board? All this talk 
> on the subject has got me confused.
>  
> 
> Stan Rife 
> W5EWA 
>