Ok, I reviewed the procedure -- it's been a long time since I did it. I think there is an error in the procedure. What you should do is tune the KX3 to the *same* frequency as your signal source. You should be in CW normal mode, RIT off, and you should verify that the signal source is giving a strong signal S9 to S9+30dB. If it is not in this range, you should set the preamp/attenuator settings to bring it in range.
*Now* you tune the KX3 VFO up 16 kHz, and set the RIT to -1.1. The signal you now hear should be the image, which you should try to null out. Sorry for the confusion before, I should have reviewed the procedure before commenting. 73, Matt VK2RQ > On 17 Feb 2015, at 7:14 am, Matt VK2RQ <[email protected]> wrote: > > Hook up the RX I/Q output to a pan adapter program on your PC (enable the > output first, use a stereo input on your PC) and you'll be able to see the > amount of shift between your signal source and the KX3's LO, and you should > also be able to see the image. This graphical representation will help you to > see what is going on at a glance. > > 73, Matt VK2RQ > >> On 17 Feb 2015, at 12:11 am, David Orman <[email protected]> wrote: >> >> RX Shift is definitely set to 8.0, on every band. I had to do that for the >> previous step, which went successfully. >> >> Thank you, >> David >> >>> On Mon, Feb 16, 2015 at 3:36 AM, Matt VK2RQ <[email protected]> wrote: >>> I'd say you have RX SHFT set to "nor" instead of "8.0". If you set your >>> sidetone to 550Hz, and 8kHz shift is not enabled, then you'll pick up the >>> image 2 * 550 Hz = 1.1 kHz away, which is what you are reporting. >>> >>> Remember that RX SHFT is a "per-band" setting, so you need to enable it >>> separately for each band. >>> >>> 73, >>> Matt VK2RQ >>> >>> > On 16 Feb 2015, at 12:17 pm, David Orman <[email protected]> wrote: >>> > >>> > Hi, >>> > >>> > I've been performing all of the "All-Band Receive Opposite Sideband and >>> > I.F. Image Nulling" steps without issue using my PX3 (and AA-54) as a >>> > signal generator. I'm at the last section, "RX SHFT=8.0 I.F. Image (16 >>> > kHz) >>> > Nulling", and am having trouble. Following the directions, and setting my >>> > KX3 16KHz up from the signal source: >>> > >>> > 7. Optimize RX SHFT=8.0 I.F. image gain and phase settings as follows: a. >>> > Set both the signal source and KX3 to the target band (starting with 160 >>> > m). Recall that the VFO should be set 16 kHz higher than the signal >>> > source. >>> > Make sure you’re in CW mode. (Note: You can change bands and modes from >>> > within the RXSBNUL menu entry.) You should hear a strong signal, and see >>> > an >>> > Smeter reading of between S9 and S9+30 dB. If not, adjust the preamp >>> > setting or the RF source level. >>> > >>> > This step, I do _not_ hear a strong signal, I hear no signal at all. If I >>> > turn on RIT to -1.1, I hear a strong signal (looking at the next step.) >>> > >>> > What am I doing wrong/missing? >>> > >>> > Thank you, >>> > David >>> > ______________________________________________________________ >>> > 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]
