Please list your TXEQ settings. On Thu, Jun 17, 2021, at 12:42 AM, Jim Brown wrote: > Heil products are wildly overpriced and highly over-rated. No ham needs > a boom mic headset better than a Yamaha CM500, which sounds great both > in the headphones and one the air, is very comfortable, costs about $60, > and has ZERO RFI issues. I'm a Fellow of the Audio Engineering Society, > have a storage room full of great mics far better than anything Heil > makes, do very serious contesting. and I've used nothing but the CM500 > for more than ten years. What pro audio folks say about Bose applies > equally to Heil -- "better sound through marketing." > > The CM500 plugs straight into the back of an version of a K3 (and > probably a K4), and I'll be happy to list TXEQ settings that make it > sound FAR better than Heil headset mics. > > I've been a member of the AES Standards Committee Working Group on > Microphones for almost 30 years, and I've never met Bob Heil or anyone > from his company. That should tell you something about how > "professional" he and his company are. :) This whole thing about "I did > sound for XXX rock band is, as my Black friends would say, "a whole > bunch of shuck and jive." > > 73, Jim K9YC > > On 6/16/2021 8:36 PM, Drew Arnett wrote: > > Shield of mic jack goes to bare metal Elecraft thoughtfully left on > > the chassis metal. 10 nF shunt to ground. (Need to see where that > > is, but hopefully SMT and with very small loop area.) Sheet 9: > > https://ftp.elecraft.com/KX3/Manuals%20Downloads/KX3SchematicDiagramDec2012.pdf > > > > Heil suggests on their tips page generous ferrite choking of all 3 > > leads of their Y adapter cable: > > https://heilhamradio.com/support/tips/ > > > > Drew > > n7da > > > > On Thu, Jun 17, 2021 at 3:23 AM Drew Arnett <[email protected]> wrote: > >> > >> Hi, > >> > >> In the KX3 for Field Day department, we plan to use it for the GOTA > >> station for phone on HF. (Yes, will have antennas not on top of each > >> other and bandpass filters on ALL radios.) Would be great to setup > >> with a headset and foot switch. > >> > >> Last weekend, I used my KX3 barefoot on 6 and with a > >> transverters-store.com transverter (also barefoot) for 2. 6m antenna > >> was 2 elements about 15 ft above the ground and 2m antenna 6 elements > >> at 10 feet above the ground. > >> > >> I worked a couple of contacts on 2m phone with the headset. Later, > >> when I tried to use the headset for phone on 6, seemed like I was > >> having a feedback problem. Cabling was the stock cabling that comes > >> with the Heil Pro 7 headset and a footswitch. Monitor was on and set > >> to 4. > >> > >> So, ALC didn't indicate anything at the normal level (60), and > >> increasing it very abruptly caused horrible sounding audio. (Yes, > >> acts like positive feedback.) > >> > >> I have a small electret mic on a 1/8 plug thing I bought some time ago > >> from the computer store. (Meant at the time for adding mic to > >> laptops.) I have a 1/8" audio extension cable for it. I plugged that > >> in instead of the headset mic and it seemed to act normally. > >> > >> Is this purely an RF from the TX antenna getting into the mic audio > >> problem or is it something else? > >> > >> Best practice to avoid this problem? > >> > >> On my todo list: > >> - ask here > >> - look at KX3 schematic to see if it has RF ingress mitigation on the mic > >> jack > >> - ask Heil > >> - unplug the Heil mic element and gator clip my cheap electret mic on > >> instead and try on 6m in driveway with identical antenna/mast/radio > >> setup > >> - look for or assemble an RF filter to inline with the mic jack (tough > >> to do with this little time > >> before field day) > >> > >> Thanks and best regards, > >> > >> Drew > >> n7da > >> > >> ps. Other than this, KX3 was great in the VHF test. Worked great > >> with the transverter on 2 and was a lot of fun running barefoot with > >> the sporadic E opening Saturday afternoon & evening. > > ______________________________________________________________ > > 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] > ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[email protected]
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