Re: [Elecraft] [K3] Hearing aids, meet K3
OK, then I will not be buying the CM500; thanks for the tip. Actually happy using my Sony stereo headset, but an integrated boom mic could be handy for some kinds of operating. David-Clark aircraft headsets work with my hearing aids, but not as good quality as the Sony. I have never found a telephone that would work with my BTE hearing aids. The sound is confined to the ear and the mic is behind my ear (not enough sound gets there and most phones do not have enough volume to hold the receiver over the back of my ear. Interestingly, most cell phones do have enough volume - go figure! At home I have 5-GHz cordless Panasonic phone in the shack and the speaker-phone works fine. When I worked at Walmart I had to answer the phone on speaker-phone in a noisy store - not fun! But then half the customers had short circuited brains and got questions like: agh ur cough grumble - ya got one of those whatayoucallits the does thingamajig?, Ya sure, you betcha bub, they're on special for $2,000 - hang up. Well, I did NOT do that but, man, some people?! Elecraft customers aren't like that, right? One more reason to enjoy retirement. 73, Ed - KL7UW From: Don Wilhelm w3...@embarqmail.com To: elecraft@mailman.qth.net Subject: Re: [Elecraft] [K3] Hearing aids, meet K3 Message-ID: 52030068.4090...@embarqmail.com Content-Type: text/plain; charset=ISO-8859-1; format=flowed Whether BTE hearing aids work with headphones or not depends a lot on the earpads of the headphones. I have one Sony headphones that work fine (large earpieces) while another Sony I have produces squeals. My CM500 headsets do not work with my hearing aids in, so I take them out. 73, Don W3FPR 73, Ed - KL7UW http://www.kl7uw.com dubus...@gmail.com Kits made by KL7UW __ 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
Re: [Elecraft] [K3] Hearing aids, meet K3
On 8/7/2013 7:20 PM, Don Wilhelm wrote: I have one Sony headphones that work fine (large earpieces) Which Sonys work? Jim __ 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
[Elecraft] K3 ForSale
Totally Loaded K3, just Serviced completely in Feb 2013 @ Elecraft To much to list, but has all the High end Filters, DVR, Fm/Am and Gen coverage rcvr, Microphone 2nd Rcvr and Antenna Tuner, Orginal Box and manual and KE7X Manual., also LP Pan and Yamaha UR22 Sound Card. Contact me off the list at w...@tampbababy.rr.com 73, Ed WP4o __ 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
[Elecraft] K3 For Sale
Subject: K3 For Sale corrected E mail addy Totally Loaded K3, just Serviced completely in Feb 2013 @ Elecraft To much to list, but has all the High end Filters, DVR, Fm/Am and Gen coverage rcvr, Microphone 2nd Rcvr and Antenna Tuner, Orginal Box and manual and KE7X Manual., also LP Pan and Yamaha UR22 Sound Card. Contact me off the list at w...@tampbay.rr.com 73, Ed WP4o __ 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
Re: [Elecraft] K3 For Sale
On 08 Aug 2013, at 7:11 AM, WP4O w...@tampabay.rr.com wrote: Subject: K3 For Sale corrected E mail addy The e-mail address at the end of this message is still not correct. [snip] Contact me off the list at w...@tampbay.rr.com 73, Ed WP4o For anyone interested in this offer, Ed's correct e-mail address is w...@tampabay.rr.com Hope this helps. 73, John K8AJS jbast...@me.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
Re: [Elecraft] K3 For Sale
I'm wondering why I should have to contact the seller to obtain a list of what he has to sell. And, how much he is asking? Maybe he is just too busy to give a complete list of what he is selling! 73 Milverton From: John Bastin jbast...@me.com To: elecraft@mailman.qth.net Sent: Thursday, August 8, 2013 6:49 AM Subject: Re: [Elecraft] K3 For Sale On 08 Aug 2013, at 7:11 AM, WP4O w...@tampabay.rr.com wrote: Subject: K3 For Sale corrected E mail addy The e-mail address at the end of this message is still not correct. [snip] Contact me off the list at w...@tampbay.rr.com 73, Ed WP4o For anyone interested in this offer, Ed's correct e-mail address is w...@tampabay.rr.com Hope this helps. 73, John K8AJS jbast...@me.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 __ 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
Re: [Elecraft] [K3] Hearing aids, meet K3
The Sony MDR-XD100 works fine with my aids, the MDR-CD60 set that I have produce feedback - the cutout in the foam is more of an oval in the MDR-CD60 while the MDR-XD100 has a full circle cutout - I think that is the major difference. I would think there is a big dependency on the gain of the aids at any one frequency, so my experience may not be applicable to others. 73, Don W3FPR On 8/8/2013 2:55 AM, Jim Brown wrote: On 8/7/2013 7:20 PM, Don Wilhelm wrote: I have one Sony headphones that work fine (large earpieces) Which Sonys work? Jim __ 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 __ 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
Re: [Elecraft] [K3] Hearing aids, meet K3
well for those of you who are looking into hearing aids and other devices. this is the one I have http://www.medel.com/us/children-soundbridge-the-vsb/?PHPSESSID=b4l2g37cmsmuin0m5j7pitc6g3; I was looking for a bluetooth to telecoil conversion . that would work with my kx3 so I dont have to jack in all the time.. __ 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
Re: [Elecraft] [K3] Hearing aids, meet K3
On 8/8/2013 9:06 AM, Richard Neese wrote: well for those of you who are looking into hearing aids and other devices. this is the one I have http://www.medel.com/us/children-soundbridge-the-vsb/?PHPSESSID=b4l2g37cmsmuin0m5j7pitc6g3; I was looking for a bluetooth to telecoil conversion . that would work with my kx3 so I dont have to jack in all the time.. I ment to say this is the one I am looking at getting... __ 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
Re: [Elecraft] [K3] Hearing aids, meet K3
Most of the recent Hearing Aids have something called T Coil or similar feature. Very popular in Europe where folks gather like churches, etc. its essentially an inductive pickup. The idea being a wire loop is run around the room parameter and a few watts of audio is pumped through it. Any hearing aid with T Coil inside the loop will pickup the audio by induction. I haven't tired it yet but was thinking of running a loop or coil around the operating desk and feed it with a couple audio watts via a small amplifier module and the K3 line out. Would be interested in hearing any results. BTW - A Google will get you lots of T Coil hits. 73 Bob W7AVK On 8/8/2013 6:09 AM, Richard Neese wrote: On 8/8/2013 9:06 AM, Richard Neese wrote: well for those of you who are looking into hearing aids and other devices. this is the one I have http://www.medel.com/us/children-soundbridge-the-vsb/?PHPSESSID=b4l2g37cmsmuin0m5j7pitc6g3; I was looking for a bluetooth to telecoil conversion . that would work with my kx3 so I dont have to jack in all the time.. I ment to say this is the one I am looking at getting... __ 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
[Elecraft] hearing devices
well I found a work around for my bluetooth just this am. I have bluetooth on my pc so I have the i/q audio going in into nap3 and demod it then pipe it our my bluetooth usb adapter to my bluetooth headset. I can now walk around the house and listen with otu drowning out everyone else in audio __ 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
Re: [Elecraft] [K3] Hearing aids, meet K3
I was thinking about coupling to the T-coil, too. http://en.wikipedia.org/wiki/Hearing_aid#Telecoil It looks like there are a number of telecoil-compatible headsets. These are just a few hits from searches for headset t-coil and headset telecoil. http://www.jabra.com/products/wired_headsets/jabra_gn2100_series/jabra_gn2100_telecoil http://www.tecear.com/Telecoil-Solutions-Guide.htm http://www.harriscomm.com/catalog/default.php?cPath=47_262 http://www.plantronics.com/us/support/kb/detail.jsp?vfurl=/articles/en_US/Product_Information/Headsets-for-Those-Who-Wear-Hearing-AidsretURL=region=usc=Alllang= wunder K6WRU On Aug 8, 2013, at 6:19 AM, Bob W7AVK wrote: Most of the recent Hearing Aids have something called T Coil or similar feature. Very popular in Europe where folks gather like churches, etc. its essentially an inductive pickup. The idea being a wire loop is run around the room parameter and a few watts of audio is pumped through it. Any hearing aid with T Coil inside the loop will pickup the audio by induction. I haven't tired it yet but was thinking of running a loop or coil around the operating desk and feed it with a couple audio watts via a small amplifier module and the K3 line out. Would be interested in hearing any results. BTW - A Google will get you lots of T Coil hits. 73 Bob W7AVK On 8/8/2013 6:09 AM, Richard Neese wrote: On 8/8/2013 9:06 AM, Richard Neese wrote: well for those of you who are looking into hearing aids and other devices. this is the one I have http://www.medel.com/us/children-soundbridge-the-vsb/?PHPSESSID=b4l2g37cmsmuin0m5j7pitc6g3; I was looking for a bluetooth to telecoil conversion . that would work with my kx3 so I dont have to jack in all the time.. I ment to say this is the one I am looking at getting... __ 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 -- Walter Underwood wun...@wunderwood.org __ 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
[Elecraft] Bose QC-15 headphones with integrated UFLYMIKE boom mic
I've been following the hearing aid discussion and Ed KL7UW mentioned the following: OK, then I will not be buying the CM500; thanks for the tip. Actually happy using my Sony stereo headset, but an integrated boom mic could be handy for some kinds of operating. David-Clark aircraft headsets work with my hearing aids, but not as good quality as the Sony. I'm a contester and own a K3. I've found that the most comfortable/effective headset plus boom mike combination is made for pilots and is called a UFlyMike. I pilot friend of mine showed me his. I called the company and they modified the plugs to work with my K3. They now sell them for amateur use. The integrated boom mic is plugged into the Bose QC-15 headset for a very comfortable long term wear combination.I've operated in numerous contests over the last 18 months with great success. The mic is an electret and the cabling is set up to directly plug in the back of the K3 with 1/8 mono plug. In addition, the headphone plug is 1/8 stereo for direct plug in on the back of the K3. If you desire to plug in on the front panel, I use the Heil eight pin adapter cable for the mic. Since the mic is an electret, you need to make sure you have the mic bias voltage selected on the K3. The UFLYMIKE also comes with a 1/8 to 1/4 stereo adapter plug if you need it. Audio reports are outstanding and of course the Bose headsets are superb. The boom mic is exceptionally well made/precision machined. It sells for $225, the same price the pilots pay. UFlyMike is at the following website: http://uflymike.com Finally, the only problem I've ever had with the Bose headsets is if there's a lot of stray RF in a multi-station shack, you'll get feedback. If you're well grounded, no problems. 73 Ed N4OC __ 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
Re: [Elecraft] [K3] Hearing aids, meet K3
On 8/8/2013 6:19 AM, Bob W7AVK wrote: Most of the recent Hearing Aids have something called T Coil or similar feature. Very popular in Europe where folks gather like churches, etc. its essentially an inductive pickup. Yes, it is, but it has never gained traction in the US, where virtually all systems for the hearing impaired use RF or infrared. I've used both successfully in some pretty big spaces, but prefer IR for most venues. The Achilles Heel of these systems is stray magnetic fields, which can add 60 Hz hum to your hearing aid. Two common sources of stray 60 Hz fields -- the transformers in big power supplies, and wiring errors in the power system, the most common of which are mis-wired outlets and double-blonded neutrals. Most of us have power transformers somewhere near our operating desk, and wiring errors are common (houses are wired by human beings, and we, as a species, make mistakes). :) Modern hearing aids are built around microphones and chips specifically designed for that purpose, with lots of equalization and other signal processing that can be tweaked to compensate for each individual's hearing loss. Engineers from Etymotic Research, a major manufacturer of both the chips and the microphones, was quite active in the Chicago Section of the Audio Engineering Society, and gave a couple very interesting presentations to our meetings about the microphones, the chips, and the systems as a whole. I don't know which brands of hearing aids use their components. About ten years ago, they hired the engineer from Shure who designed the very popular SM-58 mic. Last I heard, he was working on directional mics for them. A well-designed hearing aid should roll off the low end on T-coil inputs to minimize this, but I don't know if they do or not. Perhaps someone who is using it (or has tried it) can comment. Another comment. Hearing aids are very expensive in the US (I hear $5K-$6K being typical), and I strongly suspect that it is the result of limited distribution contracts between audiologists and the manufacturers to protect the high markups. Costco's prices are about half that, but they tend to be well rated, and W6OAT is VERY pleased with his. I also saw/heard a piece on either NPR or PBS a month or so ago about a guy who is developing a low cost hearing aid that he intends to sell in the $600 range. It's less sophisticated than the others, with fewer adjustments. 73, Jim K9YC __ 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
Re: [Elecraft] [K3] Hearing aids, meet K3
Given the processing power of the modern smart phone I wonder someone hasn't developed and application to use regular ear pieces and sample sounds to set it all up yourself. David G3UNA Another comment. Hearing aids are very expensive in the US (I hear $5K-$6K being typical), and I strongly suspect that it is the result of limited distribution contracts between audiologists and the manufacturers to protect the high markups. Costco's prices are about half that, but they tend to be well rated, and W6OAT is VERY pleased with his. I also saw/heard a piece on either NPR or PBS a month or so ago about a guy who is developing a low cost hearing aid that he intends to sell in the $600 range. It's less sophisticated than the others, with fewer adjustments. 73, Jim K9YC __ 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
Re: [Elecraft] [K3] Hearing aids, meet K3
Note to Steve KS6PD: If you suspect hearing loss get your hearing tested by a professional audiologist. You may benefit from hearing aids, now! Perhaps your employer provides annual physicals which include hearing tests? That should tell you. Donald K6RV sent me more info on the Phonac ComPilot, so I will check with my audiologist on it. It would be handy to use with my K3 or KX3, plus answer the phone anywhere in the house. Mark KE6BB story was funny but not far off the mark. Too often hearing loss is not recognized and the individual not identified as having a handicap. There is no outward sign that one is hard of hearing: no missing limbs, no white cane, no service dog! My headphones are old: Sony DR-V600 (not sure they are made anymore). I have T-coil enabled in my hearing aids but I find it not very useful (worse than using the speaker phone) and did not work with some office phones. 73, Ed - KL7UW http://www.kl7uw.com dubus...@gmail.com Kits made by KL7UW __ 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
[Elecraft] Re-calibration of K3 / K144XV / Relock combo?
Hi, I purchased a K3 plus internal tvtr K144xv plus Reflock option earlier on this year. I have just discovered that the instructions that came with the tvtr was Revision D dated July 25th 2011 but this had been superseded by Revision D-4 dated July the 14th 2012. Why couldn't the old instructions have been shredded and an upto date one sent out? Or a warning on the old set pointing me in the direction of the update? Anyway, I now wish to re-calibrate the system as per the uprated instructions. This means that the original data needs to be changed back again. How do I do this? Do I have to go back to the factory settings and start again bearing in mind I do not know the original start point before I altered the offset data (XVn OFS) as per the figure on top of the tvtr module plus the Reflock offset? Is there any other way? If I go back to factory settings what will I need to do in terms of completely re-calibration the rig? I appreciate that this is a complicated question but if only the updates had been included in the packaging I wouldn't be in this situation! Any help appreciated. Peter G4URT __ 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
Re: [Elecraft] KX3 12kHz audio spike
I decided to build a thing to work around the problem when using headphones. I did find that turning I/Q on reduced the spike significantly, but didn't eliminate it entirely. I found that a pair of .47uF capacitors and a 3mH choke did a nice job of reducing the noise over 6kHz though: http://i.imgur.com/bAiquCc.png I'd never built a pi-network before, so this was a decent learning exercise too. The reality matched up with the math quite well, I'm pleased to say. The spur at 12kHz went from about -59dB to -78dB, almost exactly 18dB (as before, I'm also adding a lot of gain in the capture device to emphasize the problem; in practice, the spur isn't anywhere near that loud). It takes the spur at 12kHz down about 18dB, which is enough to get it well under the noise threshold for normal listening conditions for my ears. Of course it would be much better if the 12kHz spur weren't there in the first place so it wasn't necessary to try to filter it out after the fact. One thing that's kind of interesting in the spectrum analysis is that filtering above 6kHz looks like it emphasized the spectrum below 6kHz. I suspect that this is not actually what happened (given that the filter is all passive components), but rather the filtering either slightly changed the results of the FFT calculations, or possibly the responsiveness of the audio capture device. I'd be interested to hear others' theories on this unexpected result, too. Nick On 7 August 2013 10:25, David Gilbert xda...@cis-broadband.com wrote: I didn't say that RF current in a ground plane wasn't well-behaved, whatever that means. I said that it wasn't uniform, as in uniform density. It's not. 73, Dave AB7E On 8/7/2013 2:10 AM, Jim Brown wrote: On 8/6/2013 8:49 PM, David Gilbert wrote: Currents most certainly do not flow uniformly in ground planes, and coupling effects can be real whenever significant gain is involved. Actually, what happens is that a trace above an ideal ground plane (the ground layer) forms a transmission line, with the return current flowing in the ground plane directly below he trace -- UNLESS the ground plane below the trace is broken, for example, by the circuit board layout guy realizing he left something off the main layer, and putting on the ground layer instead. In which case there is no longer a transmission line, the return current flows wherever it can. inductance is added to the path, which causes magnetic coupling to other circuits, and it forms an antenna, so it can radiate, into other circuitry, or outside the box, or both. So the RF current in a ground plane is VERY well behaved and predictable. The problems arise when the PC layout guy doesn't understand the function of the ground plane, and that it CANNOT be interrupted without consequences. Like zipper noise on tuning in the K3. 73, Jim K9YC __**__**__ Elecraft mailing list Home: http://mailman.qth.net/**mailman/listinfo/elecrafthttp://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.**htmhttp://mailman.qth.net/mmfaq.htm Post: mailto:elecr...@mailman.qth.**net Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __**__**__ Elecraft mailing list Home: http://mailman.qth.net/**mailman/listinfo/elecrafthttp://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.**htmhttp://mailman.qth.net/mmfaq.htm Post: mailto:elecr...@mailman.qth.**net Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html -- *N6OL* Saying something doesn't make it true. Belief in something doesn't make it real. And if you have to lie to support a position, that position is not worth supporting. __ 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
Re: [Elecraft] Hearing aids and K3
On 8/7/2013 9:29 PM, Donald, K6RV wrote: I have Phonak BTE hearing aids and I also have a Phonak ComPilot Pendant, which is a Blue Tooth Streamer and Remote Control. It is a Miracle Pendant that hangs around my neck. It operates Blue tooth with my iPhone and with my TV's (I also have the Phonak TVLink), but it also has a cable input that I bring audio from the K3 in to. I can hear the K3 audio in both ears just like I was inside the radio! I too have a Phonak Audio (BTE) set and an older Phonak i-mic pendant. The only hitch using the pendant is the it has a VOX built-in so that it switches back to the cellphone (with attendant tones) when the external audio is squelched. I haven't run any tests but I wonder how long the battery will last if passing audio continuously. I have to charge it every night and I wonder how long the mini-USB connector will last. Other than that it works well. 73 de K2ASP - Phil Kane Elecraft K2/100 s/n 5402 From a Clearing in the Silicon Forest Beaverton (Washington County) Oregon __ 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
[Elecraft] Huntsville Hamfest Forum Details Now Online
For those planning to attend the Huntsville Hamfest on 8/17-18/13 (and for those with inquiring minds), the complete Forum schedule is now online at their website: http://www.hamfest.org/Forums.php Please note that the special Two Days in Huntsville (TDiH) QRP Buildathon and BBQ events up on Monte Sano is not listed there and we were not able to get this into the QRP ARCI website this year. So please email me direct if you need this information too. Thanks. 72/73 DX, Craig W. Behrens -- NM4T __ 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
Re: [Elecraft] [K3] Hearing aids, meet K3
Jim K9YC wrote: On 8/8/2013 6:19 AM, Bob W7AVK wrote: Most of the recent Hearing Aids have something called T Coil or similar feature. Very popular in Europe where folks gather like churches, etc. its essentially an inductive pickup. Yes, it is, but it has never gained traction in the US, where virtually all systems for the hearing impaired use RF or infrared. I've used both successfully in some pretty big spaces, but prefer IR for most venues. The T-coil system works well in large spaces that have poor acoustics, and also for closed-front service counters in Banks (especially if there is a lot of noise on the customer side). In large spaces I sometimes use one hearing aid on the T-coil setting while the other is receiving the room in the normal way. This gives very useful diversity reception. When listening to a single person speaking, the T-coil system often gives the more intelligible signal because it receives a direct feed from the podium or lapel microphone, unaffected by room acoustics. The Achilles Heel of these systems is stray magnetic fields, which can add 60 Hz hum to your hearing aid. Further problems arise from the non-uniform magnetic field from the large induction loop. Listeners sometimes have to orient their heads in odd-looking ways to achieve a usable signal, while in high-signal areas there is also a risk of unexpected feedback from musical instruments that have magnetic pickups. 73 from Ian GM3SEK __ 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
[Elecraft] Fw: [K3] Hearing aids, meet K3
I've been trying email clients, and had a cockpit error. I wanted to make a couple comments. First to Alan, N5ILN, I do have a copy of Schrader's 'Electronic Communications. I agree. Then, this story: I began using my laptop at my daughter's house. Pretty soon, people from all over the house, even from downstairs, converged on me asking why the laptop was making such a terrible screeching noise. They couldn't tolerate it. I wasn't hearing a thing. I hit the mute button and they were happy again. No hearing aids yet. I wonder if that affects my preference for CW sidetone around 600 Hz. I think that is normal?? Dick, n0ce - Original Message - From: Jim Brown To: elecraft@mailman.qth.net Sent: Wednesday, August 07, 2013 4:23 AM Subject: Re: [Elecraft] [K3] Hearing aids, meet K3 On 8/6/2013 8:45 PM, Don Wilhelm wrote: I may b unique because my lower range hearing without the aids is normal, so I have built-in low pass filters in my ears. That's entirely normal, Don. In general, hearing loss starts at the high end and moves down. Many folks with a lot of hearing loss still hear a lot of low end. The exception is when for one reason or another we are exposed to strong noise at a specific frequencies, or a specific range of frequencies, in which case we develop a notch in that range. The problem is that speech intelligibility depends on sounds in the range of 500 Hz - 4 kHz, with the 2 kHz octave being most important, the 1 kHz octave close behind. That's why telephones and ham radio, with bandwidth limited to about 500 Hz to 3kHz, work just fine. Energy above 4 kHz helps, but energy below about 350 Hz makes no contribution, and often makes things worse. The scientists at Bell Labs figured this stuff out early in the 20th century. 73, Jim K9YC __ 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 __ 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
Re: [Elecraft] Fw: [K3] Hearing aids, meet K3
No hearing aids yet. When was the last time you told somebody that their audio is too bassy? 73 Milverton From: Richard Fjeld rpfj...@embarqmail.com To: elecraft posting elecraft@mailman.qth.net Sent: Thursday, August 8, 2013 4:46 PM Subject: [Elecraft] Fw: [K3] Hearing aids, meet K3 I've been trying email clients, and had a cockpit error. I wanted to make a couple comments. First to Alan, N5ILN, I do have a copy of Schrader's 'Electronic Communications. I agree. Then, this story: I began using my laptop at my daughter's house. Pretty soon, people from all over the house, even from downstairs, converged on me asking why the laptop was making such a terrible screeching noise. They couldn't tolerate it. I wasn't hearing a thing. I hit the mute button and they were happy again. No hearing aids yet. I wonder if that affects my preference for CW sidetone around 600 Hz. I think that is normal?? Dick, n0ce - Original Message - From: Jim Brown To: elecraft@mailman.qth.net Sent: Wednesday, August 07, 2013 4:23 AM Subject: Re: [Elecraft] [K3] Hearing aids, meet K3 On 8/6/2013 8:45 PM, Don Wilhelm wrote: I may b unique because my lower range hearing without the aids is normal, so I have built-in low pass filters in my ears. That's entirely normal, Don. In general, hearing loss starts at the high end and moves down. Many folks with a lot of hearing loss still hear a lot of low end. The exception is when for one reason or another we are exposed to strong noise at a specific frequencies, or a specific range of frequencies, in which case we develop a notch in that range. The problem is that speech intelligibility depends on sounds in the range of 500 Hz - 4 kHz, with the 2 kHz octave being most important, the 1 kHz octave close behind. That's why telephones and ham radio, with bandwidth limited to about 500 Hz to 3kHz, work just fine. Energy above 4 kHz helps, but energy below about 350 Hz makes no contribution, and often makes things worse. The scientists at Bell Labs figured this stuff out early in the 20th century. 73, Jim K9YC __ 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 __ 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 __ 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
[Elecraft] KX3 display/setting retention bug
This was observed with KX3 Firmware 1.50. I found what I think may be a bug in the display code or the retention of the last-used data mode bandwidth for the KX3. Steps to reproduce: 1. Tap DATA twice. 2. Select DATA A using [B]. 3. Widen the passband all the way to 4.0 with PBT I 4. Select any other mode with [B], like AFSK A. Passband display changes as expected. 5. Re-select DATA A. Result: The PBT indicator goes back to showing the full bandwidth, but the bandwidth in use is actually reduced to 0.50. Turning the PBT knob in either direction updates the display to what it should be showing. Expected result: re-selecting DATA A either uses the same bandwidth setting it had the last time it was selected OR the display updates to show that the bandwidth has been reduced to 0.50. I think if I had my druthers, I'd like to see it go back to using whatever bandwidth I'd last selected with the mode rather than reverting it to the default. Nick -- *N6OL* Saying something doesn't make it true. Belief in something doesn't make it real. And if you have to lie to support a position, that position is not worth supporting. __ 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
[Elecraft] Test
Just testing to see if my posts show up in my email client - having trouble with another reflector. 73, Don W3FPR __ 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
Re: [Elecraft] Hearing aids and K3
Here's a simple product that can be used to couple a typical headphone output to a hearing aid that has a T-coil. The plug is almost certainly a 2-circuit (Tip-Sleeve) plug, so you would need to change it to a 3-circuit (Tip-Ring-Sleeve) to use it with a K3. 73, Jim K9YC http://www.comtek.com/ntc102.html When I was designing systems, I told my clients to buy a few of these. Comtek is a fine US company based near Salt Like City. I've known them and used their products for nearly 30 years. 73, Jim K9YC __ 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
Re: [Elecraft] Hearing aids and K3
That may work for a single receiver K3 ... now how to deal with the KRX3? 73, ... Joe, W4TV On 8/8/2013 8:48 PM, Jim Brown wrote: Here's a simple product that can be used to couple a typical headphone output to a hearing aid that has a T-coil. The plug is almost certainly a 2-circuit (Tip-Sleeve) plug, so you would need to change it to a 3-circuit (Tip-Ring-Sleeve) to use it with a K3. 73, Jim K9YC http://www.comtek.com/ntc102.html When I was designing systems, I told my clients to buy a few of these. Comtek is a fine US company based near Salt Like City. I've known them and used their products for nearly 30 years. 73, Jim K9YC __ 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 __ 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
Re: [Elecraft] Hearing aids and K3
On Wed, 7 Aug 2013 22:45:41 -0700 (PDT), Mark Petiford wrote: OK, just gotta tell my hearing aids story again. I know this thread is a bit off-topic for the group, but I think it contains some very important information for all of us aging adults, and I've been following it with interest. I can identify VERY closely with your story involving the XYL. My problem is similar, but she just doesn't speak up and enunciate well. Something I want to get across to all of you, is that if you have a hearing loss and it stems from a period when you were in the military, whether it is service related or not, you ARE eligible for help from the VA. However, there must be documentation verifying the loss and when it happened. The VA covers losses and injuries that occur while you are on active duty, even if it happened at home and had nothing to do with your military job or duty. In my case, the loss was off-duty, at home, and my ex-wife was able to provide a letter stating when it happened and how, even though it was more than 40 years ago. Talk to your local VA representative. As far as the hearing aids go, I also have a Phonak pair, with iCom TVLink blue-tooth unit for the cell phone and linkable to an outside source like TV, stereo, and yes, ham radio. It works very well, but I would hesitate to recommend it for CW. If you work high speed CW, the amount of digital delay of the audio getting through the link and the aids will cause your sending to be poor if you are listening to the sidetone. For instance, you start sending a letter B. Your hand releases during the third dit, but that actually occurred before you heard it, so you send a 6 instead. Or, if you're going faster yet, there are larger errors. As for EQ, I have excellent low end hearing, but roll off very fast. With the hearing aids, which I rarely wear when using the radio*, I prefer a fairly flat response. Unlike many of the comments here, I find the lows to be very usable and easier to copy when they're present. All of the research says it's a waste, but I really prefer and copy better when the area of 100Hz is present If I roll the lows off, it is very tiring to listen to. My voice is very heavy in the 100Hz area, and I roll it down dozens of db to overcome my GM4's abundant response there. *I use the bluetooth to monitor the radio when I'm doing things outside the shack and want to keep up on what is going on. Just a few personal observations re the audio response and hearing aids on ham radio. Sorry if this has just irritated some because it is off-topic for the list. Gary __ 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
Re: [Elecraft] Hearing aids and K3
On 8/8/2013 5:48 PM, Jim Brown wrote: Here's a simple product that can be used to couple a typical headphone output to a hearing aid that has a T-coil. http://www.comtek.com/ntc102.html Comtek is a fine US company based near Salt Like City. I've known them and used their products for nearly 30 years. Do you have any information on the battery life per charge and the approximate cost (wasn't on the referenced page)? 73 de K2ASP - Phil Kane Elecraft K2/100 s/n 5402 From a Clearing in the Silicon Forest Beaverton (Washington County) Oregon __ 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
Re: [Elecraft] Hearing aids and K3
I suspect that many of us are in the same boat. I'm probably a couple of weeks from hearing aids. It doesn't affect my Amateur Radio operation (I run digital modes), but I'm reading with great interest. Any general comments (offlist if you prefer) are welcome. 73 -- Lynn On 8/8/2013 6:28 PM, mcduf...@ag0n.net wrote: On Wed, 7 Aug 2013 22:45:41 -0700 (PDT), Mark Petiford wrote: OK, just gotta tell my hearing aids story again. I know this thread is a bit off-topic for the group, but I think it contains some very important information for all of us aging adults, and I've been following it with interest. __ 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
[Elecraft] calibrating the KPA3
I'm slow, but I'm getting there with K3 kit #05642. I installed the KPA3 PA and I'm doing the calibration with the latest version of the K3 Utility software. All went well with the 5 watt calibrations, but I noticed that the calibration failed at 50 watts. I'm still in the utility program and it now wants to test at 1mw for the transverter output. I do have the K144XV 2m transverter and plan to install it after the KRX3 subreceiver. So, do I have the transverter output connector referred to by the utility program? Should I perform the transverter calibration following K144XV installation? Many thanks, Dave K1YHR. __ 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
Re: [Elecraft] Hearing aids and K3
On 8/8/2013 7:05 PM, Phil Kane wrote: Do you have any information on the battery life per charge and the approximate cost (wasn't on the referenced page)? It's passive -- a neck loop with a 1/8-in plug on it. Jim __ 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
