Re: [Elecraft] [K2] Solutions for K2 Transverter Quirks

2011-11-08 Thread Steve Kavanagh
My apologies regarding the link...as W1RT correctly figured out there should be an L at the end of it: www.qsl.net/ve3sma/downloads.html I had seen Don's circuit and decided to go a different route...not having to dig into the K2 was a plus for me (and I had a good supply of the Omron G5Y

Re: [Elecraft] [K2] Solutions for K2 Transverter Quirks

2011-11-08 Thread Don Wilhelm
Steve, The answer to your question involves a discussion about how the K2 handles control of the power output level - in all cases, it tries to measure the actual power output and the microprocessor controls the drive level early in the transmit chain to achieve the power output requested by

Re: [Elecraft] [K2] Solutions for K2 Transverter Quirks

2011-11-08 Thread Steve Kavanagh
--- On Tue, 11/8/11, Don Wilhelm w3...@embarqmail.com wrote: From: Don Wilhelm w3...@embarqmail.com Subject: Re: [Elecraft] [K2] Solutions for K2 Transverter Quirks To: Steve Kavanagh skavanag...@yahoo.ca Cc: elecraft@mailman.qth.net Received: Tuesday, November 8, 2011, 9:14 AM Steve

Re: [Elecraft] [K2] Solutions for K2 Transverter Quirks

2011-11-08 Thread Don Wilhelm
--- On Tue, 11/8/11, Don Wilhelmw3...@embarqmail.com wrote: From: Don Wilhelmw3...@embarqmail.com Subject: Re: [Elecraft] [K2] Solutions for K2 Transverter Quirks To: Steve Kavanaghskavanag...@yahoo.ca Cc: elecraft@mailman.qth.net Received: Tuesday, November 8, 2011, 9:14 AM Steve

Re: [Elecraft] [K2] Solutions for K2 Transverter Quirks

2011-11-08 Thread Steve Kavanagh
--- On Tue, 11/8/11, Don Wilhelm wrote: Considering the source of your VHF energy, I would think that a low pass filter on the RX jack (as well as one just in case on the TX jack) would take care of that problem.  Actually, Don, it's the other way round. The offending detector is on the

[Elecraft] [K2] Solutions for K2 Transverter Quirks

2011-11-07 Thread Steve Kavanagh
The K2 makes quite a nice IF rig for VHF transverters, but it has a few quirks, like most rigs. I've put my solutions to two issues up at www.qsl.net/ve3sma/downloads.htm . First is a sequencer which switches the RF to the transverter to prevent it from transmitting while its internal

Re: [Elecraft] [K2] Solutions for K2 Transverter Quirks

2011-11-07 Thread Don Wilhelm
Steve, I did not have success with that link you posted - I got a 404 error. There is another solution to inhibit CW until a sequencer has completed and gives a signal back to the K2. It is my article on PTT for CW on my website www.w3fpr.com. It interrupts the keying unless the PTT signal

Re: [Elecraft] [K2] Solutions for K2 Transverter Quirks

2011-11-07 Thread John D'Ausilio
Add an l to the url ;) http://www.qsl.net/ve3sma/downloads.html I used Don's circuit on my low-band K2 (driving one each 50,144,222,432 XV) and an external sequencer in the Jitney .. the last step of the sequencer enables TX in the K2. Steve's solution does it in one board and doesn't require