Hi Dave, Thanks for performing this comparison test. I admit that I found it difficult to perform repeatable measurements, as levels varied by as much as 10 to 15dB due to position and orientation of the rig and cables and my position with respect to the equipment. That is why I chose to provide considered representative figures derived from multiple observations as opposed to precise measurements or screen-shots, but I could provide screen-shots by way of examples if anyone feels that would be really useful.
My KX3 is #01685, purchased complete (not kit) with the roofing filter and ATU options, from Waters & Stanton in the UK. I fitted the battery charger when it shipped, and have also recently fitted the SideKX end-plates and a VE7FMN CoolerKX heatsink (although as noted before, the issue described pre-dates these retrofits). Your results lead me to hope that my KX3 might be defective and that the problem could be resolved by repair or exchange. I suppose I should order a KX3-PCKT cable set to try in case the official I/Q cable mitigates this issue, but I have tried the 2.5mm to 3.5mm stereo cable that came with my Sennheiser headphones and that didn't seem any better. I look forward to hearing confirmation from Elecraft of whether or not these emissions are considered typical for this build standard of KX3. Cheers, 73 Darren, G0HWW On 27/06/14 11:39, Dave wrote: > Here are two more screen grabs for KX3 on and off, but just looking at the > frequency range 100MHz to 500MHz. Everything else is the same between the > test > done earlier. > > KX3 on > https://dl.dropboxusercontent.com/u/65397105/KX3%20Test%2027-06-2014%201122.jpg > > KX3 off > https://dl.dropboxusercontent.com/u/65397105/KX3%20Test%2027-06-2014%201123.jpg > > I can't see any additional frequency peaks and moving the VFO on the KX3, or > changing the band, doesn't appear to make any difference to the display on the > analyser. > > So, I can say that I'm not seeing seeing any distinct frequency spikes, which > vary as I tune the KX3 VFO up and down, as Darren is seeing from his KX3. > > Dave (G0DJA) > ______________________________________________________________ > 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 darren.l...@mac.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
