Thanks for the feedback Fred. So I'll have to turn off the internal KX3 ATU? How do I do that?
Also have you seen or read anything on the Chameleon F loop? I saw a few things on You Tube. Similar to the Alex Loop. Doesn't the Alex Loop tune itself? 73 Tom W1PDI Sent from my iPhone > On May 30, 2016, at 8:15 PM, k6dgw [via Elecraft] > <[email protected]> wrote: > > I replaced my Buddipole with an Alex and use it a lot in the field ... > understand that as I accumulate birthdays, "field" more and more means a > drive-to a park or friendly hill. It works better than the BP ever did, > I can set it up in 5 min, it is fairly insensitive to ground and > surrounding objects, including me. I sit under it so I can reach the knob. > > It's a resonant transformer. To be effective, it must be EXACTLY > resonant. That's a bit touchy on 30 and 40. You MUST bypass the ATU. > "Getting close" with the knob and then letting the ATU do it's matching > job yields a fairly pricey dummy load. On 40, the BW of the Alex isn't > much more than a SSB signal. > > Beware: Small mag loops can involve some huge circulating currents and > RF voltages. The Alex is OK to 10W. Google "magnetic loop calculator" > for a very cool little calculator. Try it with 1 KW, it will really > surprise you. And sadly, I don't think a Reynolds Wrap hat will protect > you if you're close. > > Small mag loops are bi-directional in the plane of the loop but it is > very broad. Orthogonal to the loop plane, there are two very sharp, > deep nulls, sometimes useful to eliminate noise from a point source or QRM. > > 73, > > Fred K6DGW > - Northern California Contest Club > - CU in the Cal QSO Party 1-2 Oct 2016 > - www.cqp.org > > On 5/30/2016 4:38 PM, TFJM via Elecraft wrote: > > Has anyone had much success using either an Alex Loop or Chameleon P Loop > > antenna with their KX3? I have few antenna options in an apartment > > situation > > and throwing a 25 foot long wire into a nearby tree has not worked for me. > > Even tried loading up a 33 foot long aluminum balcony railing with no luck. > > > > Thanks, > > Tom W1PDI > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:[hidden email] > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to [hidden email] > > > If you reply to this email, your message will be added to the discussion > below: > http://elecraft.365791.n2.nabble.com/KX3-Loop-Antennas-tp7618249p7618253.html > To unsubscribe from KX3 & Loop Antennas, click here. > NAML -- View this message in context: http://elecraft.365791.n2.nabble.com/KX3-Loop-Antennas-tp7618249p7618256.html Sent from the Elecraft mailing list archive at Nabble.com. ______________________________________________________________ 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]
