Re: [Elecraft] PX3 with "other" I/Q Receiver?
Hi Tom, The image nulling procedure is built in the PX3. I did not run it in order not to alter these settings for the KX3 - I merely wanted to indicate that is is possible. I have the necessary signal generator to do so, that wasn't the reason not doing this... 73, Peter On 2015-01-28 19:22 Tom Blahovici wrote: Hi Yes but can't you calibrate this out using a signal generator and the px3 calibration facility? __ 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 Message delivered to arch...@mail-archive.com
Re: [Elecraft] PX3 with "other" I/Q Receiver?
Hi Yes but can't you calibrate this out using a signal generator and the px3 calibration facility? Of course, it appears that the iq correction operates on only a single frequency and does not do frequency based corrections. I could be wrong about this though. One way to tell is to put a string signal near the left of the display at - 96khz and see if the image is at the extreme left. Tom va2fsq.com On Jan 28, 2015 11:47 AM, "Peter Eijlander (PA0PJE)" wrote: > > I did, it works > > With a Softrock-RX for 30 metres. The LO is an xtal on 40.5 MHz that > produces 10.125 MHz and that shows on the PX3 as 0Hz. > The real problem comes with the need to recalibrate te I/Q phase and > amplitude in order to have a good image rejection. > On -25 kHz I see the DDK9 teleprinter and on +20 kHz I see the average > bunch of data modes and in between: CW sigs. > For me it was merely "try and see what happens" for the KX3 obviously > rocks much better... > > 73, > Peter - PA0PJE > > Op 2015-01-27 23:52 schreef Tom Blahovici: > > Hi > > It would not work properly as is. I think one would need to send > > information to the px3 via the serial port to establish the centre > > frequency, markers, and respond to qsy''s.etc. as well as react to > > requests coming from the px3. > > Assuming these are standard api type commands it could be a possibility. > > Could be a fun project. > > Tom > > va2fsq.com > __ > 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 > Message delivered to tom...@videotron.ca __ 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 Message delivered to arch...@mail-archive.com
Re: [Elecraft] PX3 with "other" I/Q Receiver?
I did, it works With a Softrock-RX for 30 metres. The LO is an xtal on 40.5 MHz that produces 10.125 MHz and that shows on the PX3 as 0Hz. The real problem comes with the need to recalibrate te I/Q phase and amplitude in order to have a good image rejection. On -25 kHz I see the DDK9 teleprinter and on +20 kHz I see the average bunch of data modes and in between: CW sigs. For me it was merely "try and see what happens" for the KX3 obviously rocks much better... 73, Peter - PA0PJE Op 2015-01-27 23:52 schreef Tom Blahovici: Hi It would not work properly as is. I think one would need to send information to the px3 via the serial port to establish the centre frequency, markers, and respond to qsy''s.etc. as well as react to requests coming from the px3. Assuming these are standard api type commands it could be a possibility. Could be a fun project. Tom va2fsq.com __ 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 Message delivered to arch...@mail-archive.com
Re: [Elecraft] PX3 with "other" I/Q Receiver?
Hi It would not work properly as is. I think one would need to send information to the px3 via the serial port to establish the centre frequency, markers, and respond to qsy''s.etc. as well as react to requests coming from the px3. Assuming these are standard api type commands it could be a possibility. Could be a fun project. Tom va2fsq.com On Jan 27, 2015 5:27 PM, Chas H <2mysys...@gmail.com> wrote: > > Has anyone used the PX3 Panadapter with a receiver that has I/Q outputs > other than the KX3 such as the Softrock or ?? > __ > 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 > Message delivered to tom...@videotron.ca __ 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 Message delivered to arch...@mail-archive.com
[Elecraft] PX3 with "other" I/Q Receiver?
Has anyone used the PX3 Panadapter with a receiver that has I/Q outputs other than the KX3 such as the Softrock or ?? __ 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 Message delivered to arch...@mail-archive.com
