Don Do you know what has to be done (extra circuitry etc) to get the DXE Clifton Lab amp to work with a K2 and essentially mirror the functionality of Jack Smith’s one?
Paul Gacek W6PNG/M0SNA > On Feb 15, 2019, at 9:41 AM, Don Wilhelm <[email protected]> wrote: > > Jim, > > The IF take-off point normally used for the K2 is at J12 pin 1 which is after > the Post-Mixer amplifier. That point provides a signal that is about equal > in strength to the antenna input affords isolation for BFO leakthrough. > > For everyone's information, DX Engineering is selling the Clifton Labs buffer > amplifier (but not the specific K2 version that Jack Smith (SK) also sold. > > 73, > Don W3FPR > > >> On 2/15/2019 12:02 PM, Jim KO5V wrote: >> Good morning, >> I have a HupRF PAT tap buffer amp board for my K2's IF. I installed an SMA >> connector on the heatsink panel >> when I built the rig. >> Looking at the K2's block diagram, the IF is shown between the mixer and >> post-mixer pre-amp. On the schematic, >> that appears to be between Z6, pin 2, and C159. My plan is tap the >> mixer-side of C159, then attach the ground >> braid to the ground side of R80. Is this the right way to do this? >> I've searched this reflector, and the web, and I can't really find anything >> specific using "K2 IF out", etc. >> SDR kits' site (they sell G4HUP's kits since Dave passed away), and the >> HupRF site have no instructions for >> Elecraft rigs. There are links to installation instructions in the most >> popular Yaekencom radios, but not the K2, >> even though they are selling the K2 boards. >> Thanks again. 73, >> Jim KO5V > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:[email protected] > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to [email protected] ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[email protected] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [email protected]
