Oops, adding my call. Mark, W7MLG
On Mon, Jun 24, 2019 at 11:44 AM Mark Goldberg <marklgoldb...@gmail.com> wrote: > I'd be interested to hear how it does in the presence of close in strong > signals, especially SSB. I was operating a KX3 on SSB in close frequency to > someone that was far away, but they had all the knobs up to 11 and was > maybe S9+20 and about 10 kHz wide with lots of splatter. I could hear > anyone that came back to me but I eventually abandoned the frequency > because most could not hear me. 20 SSB was wall to wall with someone about > every 1.5 kHz or closer. > > 73, > > Mark > > > On Mon, Jun 24, 2019 at 10:12 AM Wayne Burdick <n...@elecraft.com> wrote: > >> George (KJ6VU), John (KJ6K) and I operated a basic K4 for several hours >> as the 20 meter CW station at the Bay-Net Field Day site east of San Jose. >> This was the K4's first outdoor shake-down. The stakes were high, since the >> K4 has to pick up where the K3S/P3 leave off, fulfilling a dual role as >> both a high-end desktop and field/portable station. >> >> Observations: >> >> - the light weight (~10 pounds) made it easy to transport and set up >> >> - there was virtually no mutual interference between the K4 and a very >> active 40 meter SSB station using an antenna about 40' away >> >> - thanks to the low noise at this location we were able to hear many weak >> signals clustered together, and found signal clarity to be excellent >> >> - the LCD was clearly visible, without color washout, despite a full >> assault by bright sunlight bleeding through our translucent white tent >> cloth (some other radios at the same location had displays that were almost >> impossible to see) >> >> - the ATU did was able to tune a narrow-banded 20 meter yagi on other >> bands, when necessary, including 15, 10, and 6 meters >> >> - the radio ran from a very small Li-Ion battery (KXBT2, ~2.5 AH) for >> quite awhile, proving it works at 11 V, which is important for stations >> running from a somewhat depleted car battery or other emergency supply >> >> - operators were very complimentary of the internal speaker, though I'm >> partial to stereo audio and was using a pair of 8", 4 ohm (passive) >> external speakers most of the time >> >> We had a bit of fun late in the afternoon on Saturday when we switched >> from the Yagi to an AX1, Elecraft's 4 foot 20 meter whip. This may seem >> frivolous, but it's an important test because it shows that the radio's >> shielding is working well. It should handle an end-fed wire with a balun >> right at the antenna jack. >> >> Here are some comments we received afterward from KJ6K: >> >> "It was a real thrill to play with the K4 while making making CW contacts >> with it during Field Day. It's an amazing technical and usability design >> achievement. The user interface for many modern radios is so complex that >> an operator may need to refer to the manual frequently to figure out how to >> access a desired function, and never be able to do so quickly. The display >> on the K4 is gorgeous, and the use of touch, along with physical controls, >> provides a very intuitive and efficient user interface. >> >> "My own interests in ham radio have always been mostly in the science and >> engineering, so my operating is mostly casual, with HF CW my favorite mode. >> The architecture of the K4 is really exciting; the performance and endless >> possibilities for features and connectivity is really cool." >> >> Thanks, John! >> >> Looking forward to full-contact Field Day battle mode with a couple of >> K4s next year :) >> >> Wayne >> N6KR >> >> >> ______________________________________________________________ >> 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 marklgoldb...@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
