The bandwidth being consumed on this topic is puzzling to say the least. Would not a phone call or email direct to Elecraft get you the info you want first hand?
Surely the manufacturer has a right (read the fine print in their published documents) to make changes as and when they feel it appropriate and I would think they have no obligation to explain why they do what they do. I don't see or smell anything bad in the air other than a large number of postings questioning why they are offering a Rev D board and LPF.... The decision to be made is whether you want the latest production board or not, I wonder if YaeComWood would offer such service? YMMV 73's Gary #679 with no mods done and working Dx daily..(:-)) As Don wrote: Snip Yes, Wayne, Lyle and Eric have stated that the results were quite similar to the W9AC mods, but were done in a different manner (I presume it was easier to accomplish resistor changes in board manufacturing). There may have been some other insignificant 'tweaks' to the hardware done at the same time (just because it was convenient). But there are no functional or performance enhancements associated with those changes. I would think if Elecraft had made improvements, they want to advertise that fact, a better K3 should sell better. Some of these questions are beginning to sound as though there is some "conspiracy" going on. The fact that a board level B can be upgraded to assembly level D (with the component changes and the LPF) says that the board printed traces has not changed. Note that the board level relates only to the printed traces, solder pads, etc. The assembly level can be quite different. From the information that we have, the original board was assembly B (same as the board level), then the low frequency response was extended resulting in level C - finally, Eric decided to add the LPF since it was available, resulting in assembly level D. 73, Don W3FPR End Snip Sent via BlackBerry® from Telstra -----Original Message----- From: Don Wilhelm <w3...@embarqmail.com> Date: Sat, 02 Jan 2010 07:51:06 To: David Cutter<d.cut...@ntlworld.com> Cc: <elecraft@mailman.qth.net> Subject: Re: [Elecraft] DIY DSP Rev D David, Yes, Wayne, Lyle and Eric have stated that the results were quite similar to the W9AC mods, but were done in a different manner (I presume it was easier to accomplish resistor changes in board manufacturing). There may have been some other insignificant 'tweaks' to the hardware done at the same time (just because it was convenient). But there are no functional or performance enhancements associated with those changes. I would think if Elecraft had made improvements, they want to advertise that fact, a better K3 should sell better. Some of these questions are beginning to sound as though there is some "conspiracy" going on. The fact that a board level B can be upgraded to assembly level D (with the component changes and the LPF) says that the board printed traces has not changed. Note that the board level relates only to the printed traces, solder pads, etc. The assembly level can be quite different. From the information that we have, the original board was assembly B (same as the board level), then the low frequency response was extended resulting in level C - finally, Eric decided to add the LPF since it was available, resulting in assembly level D. 73, Don W3FPR David Cutter wrote: > Dave > > I would gladly fit this daughter board and perhaps do the LF enhancement, > but several on this list seem to be saying that the exchange DSP board does > something more than these mods provide. > > Can anyone clarify? > > David > G3UNA > > ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
