[Elecraft] K3 Rev C DSP with Low Freq Enhancement ship date info; New swap out option on parts order page.

[Eric Swartz - WA6HHQ, Elecraft]

We started shipping the current DSP boards, Rev C, approximately March 
6th, 2009. 
Any K3 DSP board Rev C or later will have the extended low end audio 
frequency response h/w enhancement.

This corresponds approximately to K3 serial number 2800, plus or minus 
10-20. Since assembled -Fs and kit K3s flow through different 
manufacturing paths, there is a slight variance in s/n for the phase-in. 
If in doubt, check the DSP board Rev as noted above.

These changes basically added additional h/w low end frequency response 
below 300 Hz. You need to also have the latest K3 f/w to take advantage 
of this. Of course, you can also tailor (and limit) your RX and TX 
response via the K3's IF Shift and B/W controls and by using the TX and 
RX Equalizer entries.

A picture of the Rev label location on the DSP board and additional info 
is at:
http://www.elecraft.com/K3/mods/dsp_rev_c_information.htm

(The 'C', or later, revision letter at the bottom of the label is what 
is important.)

We have added to our parts and mod kits page an option, K3DSPUPGD to 
swap out your current DSP for one upgraded to the latest Rev C changes. 
The cost will be $69.00 plus shipping. Order placed via this page will 
start shipping approximately in 4 weeks, around Nov 9.

See:
http://www.elecraft.com/order_form_parts.htm#K3%20Parts


73,  Eric   WA6HHQ