Re: [Elecraft] Playing with my KX3-2M
Very interesting, Ed, and your web page is too. I see that the KX3-2M is in a screened box positioned immediately on top of the ATU. Does the position of it have any detrimental affect on the operation of the ATU on the normal KX3 bands (1.8 to 50MHz)? I do not see any mention of this in the FAQ. It is good to see that progress is being made. I have one on order which I hope to use on my overseas vacation in September. 73 de David G4DMP In a recent message, Edward R Cole kl...@acsalaska.net writes [snip] But the thing I wanted to say is KX3-2M Rx sensitivity at 162 MHz appears pretty good! Quick check of 2m Rx sensitivity was made using my XG3+30 dB step-attenuator and good it was hearing down to -137 dBm in SSB bandwidth. [snip] -- + - - - - - - - - - - - - - - - - + | David M Pratt, Kippax, Leeds. | | Website: http://www.g4dmp.co.uk | + - - - - - - - - - - - - - - - - + __ 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] Playing with my KX3-2M
Many thanks, Ed, it is thankful to know that the operation of the ATU is unaffected. 73 de David G4DMP In a recent message, Edward R Cole kl...@acsalaska.net writes I should have taken a photo before installing the shield. No it has no effect on the ATU if you follow instructions on routing the mini-coax which connects LO and ANT. It is important to orient the shield properly there is little cutout of the lip of the shield which prevents shorting the 3w PA transistor (TO-220). Do not use the print on the label as a guide for which way the shield in installed. It took my about an hour and ten minutes to install the 2M. -- + - - - - - - - - - - - - - - - - + | David M Pratt, Kippax, Leeds. | | Website: http://www.g4dmp.co.uk | + - - - - - - - - - - - - - - - - + __ 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] Playing with my KX3-2M
Finally hit a breather in my busy schedule* to spend a little time with the new 2M transverter module. *Just wound up running a week of W1AW/KL7 for 2m eme. My unit was one of the few that had to have the Rx fixed as result of field testing. Came back in great shape and verified the RF output to be 3w. I still don't have enough time to make the exhaustive frequency measurements that I want to evaluate for use with mw transverters that commonly use 144 as IF, but ...made some local 2m-FM contacts and noticed the receiver audio seemed scratchy, sort of like one would see with poor signals. That got me curious to make some tests with my other 2m-FM rig and that also seemed off. At the same time I decided to program the KX3 with the local NOAA Wx station (162.475) and it was terrible. I switched to my standard vertical dual-band base station whip and NOAA came at S6 loud and clear -wow! Quick check of the tower-mounted preamp shows its blown. It reverts to bypass by removing 12v power. BTW the preamp is connected to a yagi pointed toward Anchorage 70-mi north. The NOAA station is 20mi south. But the thing I wanted to say is KX3-2M Rx sensitivity at 162 MHz appears pretty good! Quick check of 2m Rx sensitivity was made using my XG3+30 dB step-attenuator and good it was hearing down to -137 dBm in SSB bandwidth. Now I am fixing a RFConcepts 2-23 30w linear amp to be driven by the KX3-2M. This amp is a very nice brick which is small enough to take on a plane in a briefcase when traveling. Being linear it can be used on 2m-SSB with the KX3-2M. Check out my new webpage for the 2M module: http://www.kl7uw.com/KX3-2M.htm 73, Ed - KL7UW http://www.kl7uw.com Kits made by KL7UW Dubus Mag business: dubus...@gmail.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
