Re: [Elecraft] K3 and SDR Integration - Almost completed!!!

2007-07-25 Thread Geoffrey Mackenzie-Kennedy
Jack Smith wrote: In contrast, the K3, as I understand it, take an IF sample ahead of the IF filter, with a source follower. Hence, a signal injected into the source follower's output will leak back into the main IF path and be heard in the receiver, reduced by the reverse gain of the source f

Re: [Elecraft] K3 and SDR Integration - Almost completed!!!

2007-07-25 Thread Scott McClements
Don, I have my softrock kit mounted in its own cabinent. I was able to hook the softrock kit right to the 940 IF output - the signal level from the 940 was ok and I don't have any evidence of softrock osc. artifacts getting back into the 940's IF stage. I actually even have a preamp inline betwee

Re: [Elecraft] K3 and SDR Integration - Almost completed!!!

2007-07-25 Thread Jack Smith
Don Rasmussen wrote: Scott, Did your TS940 require any kind of a special buffer circuit to keep the softrock lite from injecting noise into the IF, as the K3 might require? -------- [Elecraft] K3 and SDR Integration - Almost completed!!! Scott McClements kc2pih at

[Elecraft] K3 and SDR Integration - Almost completed!!!

2007-07-24 Thread Don Rasmussen
Scott, Did your TS940 require any kind of a special buffer circuit to keep the softrock lite from injecting noise into the IF, as the K3 might require? [Elecraft] K3 and SDR Integration - Almost completed!!! Scott McClements kc2pih at gmail.com Tue Jul

Re: [Elecraft] K3 and SDR Integration - Almost completed!!!

2007-07-24 Thread Simon Brown (HB9DRV)
But you know the PowerSDR code. I just have so much in progress at the moment that opening up the PowerSDR source would fry my brain. FWIW I now have a TCP/IP DLL which interfaces to HRD. Anyway - congrats - I have to do nothing, but I'll still wait for the box with the Elecraft approved stick

Re: [Elecraft] K3 and SDR Integration - Almost completed!!!

2007-07-24 Thread Scott McClements
I personally think that going the SDR route is overkill - and requires a ton of code. Simon! I can't believe what I am hearing from you! :) In about a months time, I went into the PowerSDR code (v1.9.1) and interfaced it to your Ham Radio Deluxe using DDE. I have the PowerSDR software sync'd p