Re: [Elecraft] Ham Radio Deluxe and KX3 Radio
Be aware that You operate CW on the K3 and KX3 using an app called K3iNetwork made by Mike KS7D. I have used it extensively over the last 18 months. Right now actually using it from EA8 :-) Mike is working on another app which uses the touch screen as a touch paddle. It still not working too well but I think it will be improved soon. 73 de OZ4UN Poul-Erik Sendt fra min iPad > Den 06/01/2014 kl. 07.30 skrev "Rick Bates" : > > DM780 does indeed allow CW (KY Cmd), which should work on the KX3 as well as > it does on the K3. It does this through the serial port, which also manages > the PTT, no further hardware needed unless you want it to decode for you as > well. ;0) > > Rick wa6nhc > > -Original Message- > From: Don Wilhelm > > The KX3 can be keyed using the "KY" command, but I do not think > HRD/DM780 implements that command - few applications do. > The easiest solution is to use the K1EL Winkeyer. > HRD/DM780 can also send CW using a serial port, but that is a different > port than is used for rig control, and you need something like the 'one > transistor keying interface' to make the RS-232 signal levels into > on-off switching needed to key the rig. > > 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 __ 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] JARD Technical Standard Certification Number for K3 or K3X
I am planning a trip to Kagoshima, Japan in a few months and am applying for a reciprocal license to operate in Japan. Does anyone know if the K3 and/or K3X have JARD (The Japan Amateur Radio Development Association) Technical Standard Certification Number? This is required for operation of the rig in Japan when operating under a reciprocal license. 73, Bob - N7RJN __ 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 External Transverter and ATU TUNE disable optionsuggestion
Don, That makes sense too, thanks. I still would like to have an option of a tap off the low power drive before the PA with the PA disabled when using an external transverter, so that I could have the benefit of controllable low power with low wideband transmitted noise and no heat problems at high duty cycle. 73 David Anderson GM4JJJ > On 5 Jan 2014, at 20:17, Don Wilhelm wrote: > > David, > > I don't know about the power control characteristics of the KX3 yet, but with > the K2 without the K60XV option), more steady power control is achieved in > the 2 to 10 watt range as compared to lower power levels. It all has to do > with resolution - the power is set in 0.1 watt increments, and an uncertainty > of 1 count can double or halve the power level at very low values, but that > same uncertainty is much less at 2 watts and even less at 4 watts. > > For JT65 and other long transmission full duty cycle periods, the heat > dissipation must be considered if you want to prolong the life of the finals > - so use 2 or 3 watts. > > 73, > Don W3FPR > >> On 1/5/2014 2:42 PM, David Anderson wrote: >> David, >> >> I have a further thought about the difficulties of using the KX3 with an >> external transverter, if we reduce the maximum power output for the XVTR by >> using the XV PWR H setting to say a very low value (say the lowest which is >> 0.1 Watt), then is there a danger that the relative transmitted wideband >> amplifier noise will be higher than if we kept the power at say 4 Watts and >> then used a big attenuator on the input of the TX port on the transverter? >> >> All my previous experience with transverters have been with radios that had >> dedicated low power transverter RF out ports. Even then there were problems >> with thermal power drift, excessive drive levels due to lack of the normal >> ALC that radio normally depended on when using it on HF etc. >> >> I presume that there is no way to easily bypass the PA and driver stages >> within the KX3 to get lower drive power without reducing the TX gain. I have >> been looking at the KX3 schematics trying to work out where the as yet >> unreleased KX3 internal 2m transverter gets it drive from and at what level >> that is. >> >> Perhaps Elecraft may give us some clues or guidance. >> >> What would be neat, but it don't suppose we can expect Elecraft to do it, >> would be a board that would replace the planned internal 2m transverter, and >> would just act as a lower power transverter output from before the PA >> stages, on an SMA connector where the 2m antenna socket will be, with the >> main antenna BNC as a receive only port, (though that could be dangerous), >> perhaps a low power TX/RX on the SMA would be best. >> >> 73 >> >> David Anderson GM4JJJ > > __ > 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] KX3 firmware rev. 1.84 (broadcast-band optimizations)
sure be nice to operate 600 meters if/when Bob K3DJC On Sun, 5 Jan 2014 17:59:21 -0800 Wayne Burdick writes: > We had a great response to our request for volunteers to test this -- > too many to send out individually. Chances are this will be ready > for beta-test early next week. You'll be able to get it from our > website then. > > 73, > > 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 > __ 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 - AFSK RTTY
Joe... This is great. Thanks for the information. One frustration down in my life.a couple of million to go. Lee - K0WA In our day and age it seems that Common Sense is in short supply. If you don't have any Common Sense - get some Common Sense and use it. If you can't find any Common Sense, ask for help from somebody who has some Common Sense. Is Common Sense divine? Common Sense is the image of the Creator expressing revealed truth in my mind. - John W. (Kansas) Never interfere with anything that isn't bothering you. From: "Joe Subich, W4TV" To: Elecraft Reflector ; k6...@foothill.net Sent: Sunday, January 5, 2014 8:50 PM Subject: Re: [Elecraft] K3 - AFSK RTTY In N1MM -> Config -> Configure Ports, Mode Control, Audi, Other -> Mode Control ... make sure you have set the RTTY mode to *AFSK* and not *RTTY* if you are using AFSK. For more information read the very fine N1MM Logger on-line documentation. 73, ... Joe, W4TV On 1/5/2014 9:26 PM, Rick Tavan N6XI wrote: > Here is one thing that will cause a similar problem: If you program a > memory while DATA MD is X, then every time you recall that memory you will > be put back into X, regardless of the DATA MD setting prior to the memory > recall. You might have set the memory years ago when using FSK D and now > are using AFSK A. Use the memory, go directly to FSK D. This bit me several > times this weekend. However, I don't see an obvious connection between > memory recall and N1MM band map clicking. > > /Rick > > > On Sun, Jan 5, 2014 at 5:14 PM, Fred Jensen wrote: > >> What would a contest be if everything always worked like it did the last >> time in the contest. >> >> I use a minimalist RTTY setup: >> >> 2 stereo cables from LINE IN/OUT to LINE OUT/IN >> AFSK-A with PTT from VOX >> N1MM with one instance of MMTTY >> >> Basically, it worked fine, made over 700 Q's. At the urging of the club, >> I decided on the new SO Unlimited [i.e. assisted], and that worked OK too >> except: >> >> Every time I clicked on a band map spot, the radio went to FSK-D, and of >> course wouldn't key. I had the couple of usual N1MM lockouts and >> re-starting N1MM also caused this change to FSK-D. >> >> I'm running 4.58 FW, haven't loaded new in a long time, and N1MM is >> running 13.10.2, also haven't updated that in quite awhile, both have been >> working very well. >> >> I don't think this is a K3 problem, but wanted to check if anyone else >> using the minimalist configuration has seen this. >> >> 73, >> >> Fred K6DGW >> - Northern California Contest Club >> - CU in the 2014 Cal QSO Party 4-5 Oct 2014 >> - www.cqp.org >> >> Go SF! >> >> __ >> 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
Re: [Elecraft] JARD Technical Standard Certification Number for K3 or K3X
Bob, Contact supp...@elecraft.com to find out how to obtain the program to make those changes (and also how to remove it after you return). 73, Don W3FPR On 1/6/2014 8:32 AM, Robert Nobis wrote: I am planning a trip to Kagoshima, Japan in a few months and am applying for a reciprocal license to operate in Japan. Does anyone know if the K3 and/or K3X have JARD (The Japan Amateur Radio Development Association) Technical Standard Certification Number? This is required for operation of the rig in Japan when operating under a reciprocal license. 73, Bob - N7RJN __ 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] Dual Pass Band
Dear Elecrafter RTTY Enthusiasts Ran RU this weekend and was experimenting with Dual PB. I found that the sensitivity of the receiver would be much less that using the standard 500 Hz Filter with the bandwidth set at 350. What causes that or is something wrong? I could even see the difference on the P3. The K3 rtty abilities are pretty darn good... Lee K0WA In our day and age it seems that Common Sense is in short supply. If you don't have any Common Sense - get some Common Sense and use it. If you can't find any Common Sense, ask for help from somebody who has some Common Sense. Is Common Sense divine? Common Sense is the image of the Creator expressing revealed truth in my mind. - John W. (Kansas) Never interfere with anything that isn't bothering you. __ 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] K3/0 Remote setup and Brainboxes
Paul, You need to configure your router/firewall to forward the port used by the ES-257 from the router to the device. You will need to assign a static IP to the device. Serial port 1 uses port 9001, serial port 2 uses port 9002. Look at your router documentation and search the web for port forwarding info. 73, John NI0K -- Original Message -- From: "Paul A DeFelice" To: elecraft@mailman.qth.net Sent: 1/5/2014 9:47:46 AM Subject: [Elecraft] K3/0 Remote setup and Brainboxes As part of my remote setup, I purchased a Brainboxes ES-257 2 Port RS232 ethernet to serial adapter to control a couple of serial port accessories. I can control the ES-257 and the attached equipment using their Boost.LAN Manager software over my LAN but cannot get the device configured to accept control using my external IP. Any suggestions or direction would be much appreciated. 73, Paul K9NU __ 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] JARD Technical Standard Certification Number for K3 orK3X
K3/K3X does not have Technical Standard Certification Number. See http://www.jarl.or.jp/English/3_Application/A-3.htm Oku / JK1KSB - Original Message - From: "Robert Nobis" To: Sent: Monday, January 06, 2014 10:32 PM Subject: [Elecraft] JARD Technical Standard Certification Number for K3 orK3X I am planning a trip to Kagoshima, Japan in a few months and am applying for a reciprocal license to operate in Japan. Does anyone know if the K3 and/or K3X have JARD (The Japan Amateur Radio Development Association) Technical Standard Certification Number? This is required for operation of the rig in Japan when operating under a reciprocal license. 73, Bob - N7RJN __ 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] K1 For Sale
I have a like new K1 4-band for sale covering 40/30/20 and 15 meters, S/N 3141. Included is the KAT1 Antenna Tuner, KNB1 Noise Blanker and a custom red oak tilt stand. Original owner/builder of this radio in a non-smoking home this radio is in pristine condition. I built this radio very carefully and it was aligned and calibrated by Don, W3FPR. It works perfectly and comes with the original manual, all documentation and DC power cord terminated in Anderson PowerPole connectors. Am selling as I have two K3's now. $375 shipped and insured CONUS. If interested please contact me off list. Bob - K9OSC k9os...@gmail.com -- View this message in context: http://elecraft.365791.n2.nabble.com/K1-For-Sale-tp7582567.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: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] Dual Pass Band
Is this designed this way? That does seem to be something that needs to be fixed. Or, am I not seeing the whole picture here? Lee - K0WA From: Mark To: Lee Buller Sent: Monday, January 6, 2014 10:17 AM Subject: Re: [Elecraft] Dual Pass Band I found the DPF degraded all but the strongest most stable signals, unless I really opened up the bandwidth. You could see a good signal but the decode was bad. I stopped using DPF after that. There is more support for not using these filters as it degrades the system, unless you are using the k3s internal rtty decoder. Look at http://www.nccc.cc/pdf/RTTY-Receive-W0YK.pdf For good tips. Mark. N2QT > On Jan 6, 2014, at 10:52 AM, Lee Buller wrote: > > > > Dear Elecrafter RTTY Enthusiasts > > Ran RU this weekend and was experimenting with Dual PB. I found that the > sensitivity of the receiver would be much less that using the standard 500 Hz > Filter with the bandwidth set at 350. What causes that or is something > wrong? I could even see the difference on the P3. The K3 rtty abilities are > pretty darn good... > > Lee > K0WA > > > In our day and age it seems that Common Sense is in short supply. If you > don't have any Common Sense - get some Common Sense and use it. If you can't > find any Common Sense, ask for help from somebody who has some Common Sense. > Is Common Sense divine? > > Common Sense is the image of the Creator expressing revealed truth in my > mind. - John W. (Kansas) > > Never interfere with anything that isn't bothering you. > __ > 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] Current use K3/10 vs. K3/100
Bill, During K3/100 testing, did you try the current-drain measurements with CONFIG:KPA3 set to PA BYP? This may be lower than what you get with KPA3 set to PA NOR and the POWER control set to QRP levels. 73, Wayne N6KR On Jan 5, 2014, at 11:58 PM, Bill Frantz wrote: > Remembering the thread about how much current a K3/100 used when powered off, > I decided to run a test as I installed the KPA3 in K3 #6299. The table below > lists power use before (K3/10) and after (K3/100) 100w amp was installed. A > monospaced font will help legibility. > > Test conditions: Direct connection to a 12v battery. RF and AF gain at zero. > CW mode. No RS-232 connection. P3 power unplugged. IF out disconnected. MFJ > dummy load. Tuned to 14.0475. Fluke 87 meter for current. Internal K3 meter > for voltage. Straight key held down until current reading stabilized (c10 > seconds.) > > K3/10K3/100 Measurement > 0.1microA N/A V 4.1mA N/A V Power off idle current > 873mA 12.1V 969mA 12.1V Receive > 2.57A 10.8V 2.87A 11.0V Transmit 5W > 3.19A 10.4V 3.53A 10.6V Transmit 10W > > The K3/100 uses 11% more power on receive, 12% more power on QRP transmit, > and 11% more power on ten watt transmit. It may be worth removing the 100w > amp for QRP battery field day like operations. > > Note that the PA temperature calibration changed the value by 3 degrees C. > (This time I put a brewing thermometer next to the radio to act as the > "standard" temperature. The last time I think I used the wall thermometer.) > The MacIntosh K3 Utility did the Wattmeter calibration. As far as I know, > these were the only changes to the radio's settings. > > Cheers - Bill, AE6JV > > --- > Bill Frantz| If the site is supported by | Periwinkle > (408)356-8506 | ads, you are the product.| 16345 Englewood Ave > www.pwpconsult.com | | Los Gatos, CA 95032 > > __ > 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] Dual Pass Band
Lee, Ed, W0YK, has a commentary on this very subject in the current issue of NCJ (subscription required). Perhaps he will weigh in directly here, but his recommendation was to use the normal filter rather than dual passband. This is not an issue unique to the K3. 73, Mike, K8CN -- View this message in context: http://elecraft.365791.n2.nabble.com/Dual-Pass-Band-tp7582564p7582570.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: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] Dual Pass Band
That information is based on input from K7AY (cocoaModem) and G3YYD (2-Tone). The software decoders do a better job when supplied with audio at least 400 Hz wide without frequency shaping from the IF (DSP) filter. The Dual Band Pass filters in general introduce significant phase delays and amplitude inequality which results in poorer decoding accuracy in modern FFT based demodulators - although the frequency shaping may be of value in older amplitude (filter/detector) style demodulators. 73, ... Joe, W4TV On 1/6/2014 1:26 PM, Mike K8CN wrote: Lee, Ed, W0YK, has a commentary on this very subject in the current issue of NCJ (subscription required). Perhaps he will weigh in directly here, but his recommendation was to use the normal filter rather than dual passband. This is not an issue unique to the K3. 73, Mike, K8CN -- View this message in context: http://elecraft.365791.n2.nabble.com/Dual-Pass-Band-tp7582564p7582570.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: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] Dual Pass Band
If a digimode decoder is good enough then it can only be hurt, not helped,
by additional pre-filtering. This is because in the presence of noise there
is a statistical limit ("optimal detection") to how faithfully you can
extract the desired signal. Which is why I've said before: If the dual
filter were such a great idea, it would already be written into the
software for your RTTY decoder, at least as part of one of the decode
methods you can select. It's possible that some less capable decoders will
be helped by it, but if it doesn't help you then don't use it. I use MMTTY
and have not noticed it to help. Never hurts to try, though. There are so
many varied impairments to over-the-air signals that no simple collection
of decoders will have one that's optimal in every case.
73, Carl WS7L
On Monday, January 6, 2014, Joe Subich, W4TV wrote:
>
> That information is based on input from K7AY (cocoaModem) and G3YYD
> (2-Tone). The software decoders do a better job when supplied with
> audio at least 400 Hz wide without frequency shaping from the IF (DSP)
> filter. The Dual Band Pass filters in general introduce significant
> phase delays and amplitude inequality which results in poorer decoding
> accuracy in modern FFT based demodulators - although the frequency
> shaping may be of value in older amplitude (filter/detector) style
> demodulators.
>
>
> 73,
>
>... Joe, W4TV
__
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Re: [Elecraft] Dual Pass Band
Ed has a presentation on decoders he did for NCCC available at http://www.nccc.cc/pdf/RTTY-Receive-W0YK.pdf Also the rtty reflector http://lists.contesting.com/mailman/listinfo/rtty Has had multiple discussions on this and related topics. Mark. N2QT > On Jan 6, 2014, at 1:26 PM, Mike K8CN wrote: > > Lee, > > Ed, W0YK, has a commentary on this very subject in the current issue of NCJ > (subscription required). Perhaps he will weigh in directly here, but his > recommendation was to use the normal filter rather than dual passband. This > is not an issue unique to the K3. > > 73, > Mike, K8CN > > > > -- > View this message in context: > http://elecraft.365791.n2.nabble.com/Dual-Pass-Band-tp7582564p7582570.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: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- WTB PIGLET
I am looking for a Pignology PIGLET. They seem to be out of stock currently. If you have one avail email me 'off list' to n...@arrl.net or n...@widomaker.com Also looking for tips or assistance in setting this up with Samsung TAB2 and KX3. Have HAMLOG already. Thanks for your consideration. nr4c bill __ 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] External speaker recommendation.....
I'm amazed at how well my K2 internal speaker works and sounds! Every time I plug in an external speaker, I've quickly gone back to the internal speaker So, has anyone found an external speaker for the k2 that sounds "better" than the internal unit? Also, I'm really not willing to spend a bunch of $$ on one... Thanks and 73 ed __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] External speaker recommendation.....
YES! The West Mountain Radio COMspkr $39, I have several sets of them on my K2/K3. 73, Fred/N0AZZ K3 Ser # 6730--KX3 # 5210--K2/100 # 6470-KAT100 P3/SVGA--KAT500--W2 Amps Elecraft KPA500 HF/6m--Alpha's 9500 HF--87A HF--Mirage B-5030-G 300+w--(2) B-5016-G's 165w 2m -Original Message- From: elecraft-boun...@mailman.qth.net [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Eddy Sent: Monday, January 06, 2014 3:02 PM To: Elecraft Subject: [Elecraft] External speaker recommendation. I'm amazed at how well my K2 internal speaker works and sounds! Every time I plug in an external speaker, I've quickly gone back to the internal speaker So, has anyone found an external speaker for the k2 that sounds "better" than the internal unit? Also, I'm really not willing to spend a bunch of $$ on one... Thanks and 73 ed __ 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] External speaker recommendation.....
I too endorse the West Mountain speakers! I have them in use on my K2, K3, KX3 and two commmputers. 73 ! Ken - K0PP __ 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] External speaker recommendation.....
Ed, One possible reason for your lack of satisfaction in external speakers may be that they are all 8 ohm speakers. The K2 audio amplifier does not have a lot of excess gain (that was by design to limit the receive current). If you are to get a decent amount of power out of it, the speaker load must be 4 ohms or less. A higher impedance (or less efficient) speaker will sound quite weak compared to the internal speaker. An amplified speaker can be used to fix that. 73, Don W3FPR On 1/6/2014 4:01 PM, Eddy wrote: I'm amazed at how well my K2 internal speaker works and sounds! Every time I plug in an external speaker, I've quickly gone back to the internal speaker So, has anyone found an external speaker for the k2 that sounds "better" than the internal unit? Also, I'm really not willing to spend a bunch of $$ on one... Thanks and 73 ed __ 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] K1 Sold
My K1 has been sold. Thanks to all who responded. Bob - K9OSC -- View this message in context: http://elecraft.365791.n2.nabble.com/K1-Sold-tp7582579.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: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] External speaker recommendation.....
__ 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] External speaker recommendation.....
I thought something was wrong with my ears (OK, there is, but not this). I've tried several external speakers as well. The latest was the West Mountain ones which I made the mistake of opening and lost all confidence in what I saw. The K2 speaker has been better for CW than anything else I have tried. No explanation. Eric KE6US On 1/6/2014 1:01 PM, Eddy wrote: I'm amazed at how well my K2 internal speaker works and sounds! Every time I plug in an external speaker, I've quickly gone back to the internal speaker So, has anyone found an external speaker for the k2 that sounds "better" than the internal unit? Also, I'm really not willing to spend a bunch of $$ on one... Thanks and 73 ed __ 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] JARD Technical Standard Certification Number for K3 orK3X
K3/K3X does not have Technical Standard Certification Number. See http://www.jarl.or.jp/English/3_Application/A-3.htm Oku / JK1KSB - Original Message - From: "Robert Nobis" To: Sent: Monday, January 06, 2014 10:32 PM Subject: [Elecraft] JARD Technical Standard Certification Number for K3 orK3X I am planning a trip to Kagoshima, Japan in a few months and am applying for a reciprocal license to operate in Japan. Does anyone know if the K3 and/or K3X have JARD (The Japan Amateur Radio Development Association) Technical Standard Certification Number? This is required for operation of the rig in Japan when operating under a reciprocal license. 73, Bob - N7RJN __ 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] Dual Pass Band
On 1/6/2014 10:34 AM, Joe Subich, W4TV wrote: That information is based on input from K7AY (cocoaModem) and G3YYD (2-Tone). The software decoders do a better job when supplied with audio at least 400 Hz wide without frequency shaping from the IF (DSP) filter. The Dual Band Pass filters in general introduce significant phase delays and amplitude inequality which results in poorer decoding accuracy in modern FFT based demodulators - although the frequency shaping may be of value in older amplitude (filter/detector) style demodulators. Actually, it's based on things a lot more fundamental than that. In the world of pro audio, we learned nearly four decades ago that non-flat amplitude response is accompanied by phase shift (distortion). The ear does not like phase distortion, and neither do decoders. Filters produce distortion, not only when their amplitude response is changing (the slopes), but also in the passband. When i first encountered the dual-filter approach separate from the decoder itself, it looked to me like a bad idea for this reason. It was good to see it confirmed by G3YYD in the doc for his 2Tone RTTY decoder. BTW -- Nobel Laureate Joe Taylor, K1JT, author of the WSJT digital protocols, said exactly the same thing during a lecture I heard him do at Pacificon several years ago. 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] External speaker recommendation.....
I have paid upwards of $350 for a sets of speakers for radios and ending up selling all the others in favor of the West Mountain ones..If you're only going to use your single receiver K2 for CW and digital modes headphones might be the only required. Come to think of it I do still have 1 set of Icom speakers left for low clearance and match an Icom radio I have. But they only cost about $300 for the set and don't sound as good as the $39 set. 73, Fred/N0AZZ K3 Ser # 6730--KX3 # 5210--K2/100 # 6470-KAT100 P3/SVGA--KAT500--W2 Amps Elecraft KPA500 HF/6m--Alpha's 9500 HF--87A HF--Mirage B-5030-G 300+w--(2) B-5016-G's 165w 2m -Original Message- From: elecraft-boun...@mailman.qth.net [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of EricJ Sent: Monday, January 06, 2014 4:02 PM To: elecraft@mailman.qth.net Subject: Re: [Elecraft] External speaker recommendation. I thought something was wrong with my ears (OK, there is, but not this). I've tried several external speakers as well. The latest was the West Mountain ones which I made the mistake of opening and lost all confidence in what I saw. The K2 speaker has been better for CW than anything else I have tried. No explanation. Eric KE6US On 1/6/2014 1:01 PM, Eddy wrote: > > > > I'm amazed at how well my K2 internal speaker works and sounds! Every time I plug in an external speaker, I've quickly gone back to the internal speaker > > So, has anyone found an external speaker for the k2 that sounds "better" than the internal unit? Also, I'm really not willing to spend a bunch of $$ on one... > > Thanks and 73 > > ed > __ > 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] Elecraft AF1 audio filter
Hi Johnny, You may try seeing what a choke coil in series with the audio to the speaker or headphone does for you. I have the Nescaf filter and really like it for CW. In most cases, its cleaner than the available internal audio filters. But I found that adding a 3mH coil and 15uF cap in series (set for 750hz) makes a significant improvement removing harshness. I keep my K2's widest filter as wide as it will go, and the coil takes care of most of the harshness. A suggestion for you to check out if interested :-] N1BBR __ 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] External speaker recommendation.....
The best I've used for monitoring while working in the shack or letting my kids listen to an active cw QSO is the speaker from my Drake TR4C. Otherwise I use headphones most of the time... Scotty/NU0S K1-4...S/N. 3206 Sent from my Verizon Wireless 4G LTE DROID Eddy wrote: I'm amazed at how well my K2 internal speaker works and sounds! Every time I plug in an external speaker, I've quickly gone back to the internal speaker So, has anyone found an external speaker for the k2 that sounds "better" than the internal unit? Also, I'm really not willing to spend a bunch of $$ on one... Thanks and 73 ed __ 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] External speaker recommendation.....
Hi Ed, Well "better" is very subjective but I liked the powered Motorola speaker. I used the original built in Motorola amp, Type 1 as shown here: http://www2.opparc.org/mirrors/n0ss/www.n0ss.net/index_general.html They are widely available at ham flea markets and Ebay. To me the better aspect was level as I felt the K2 was lacking for my ears. Maybe one of the none powered ones would even work for you. 73, Bob K2TK On 1/6/2014 4:01 PM, Eddy wrote: I'm amazed at how well my K2 internal speaker works and sounds! Every time I plug in an external speaker, I've quickly gone back to the internal speaker So, has anyone found an external speaker for the k2 that sounds "better" than the internal unit? Also, I'm really not willing to spend a bunch of $$ on one... Thanks and 73 ed __ __ 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] External speaker recommendation.....
On 1/6/2014 2:02 PM, EricJ wrote: The K2 speaker has been better for CW than anything else I have tried. Elecraft found a VERY good speaker for the K2. Don's advice about looking for a 4 ohm speaker is also good -- virtually all loudspeaker amplifiers have a VERY low output Z, typically 0.1 Ohm or less, making them a constant voltage source. By simple Ohm's law, they will provide maximum power to the lowest impedance which they are designed. Power is E squared divided by R, so you can use them with higher Z speakers, but you will lose 3 dB of level for 8 ohms, another 3dB for 16 ohms. The second part of the equation is loudspeaker efficiency. In general, the smaller the loudspeaker, the less efficient it is. In other words, louder = bigger. The best 4 ohm loudspeaker I know of is the MR55, made by RCF, and Italian company. I've used them in some high profile projects. They're not cheap. Smaller speakers in their line are not nearly as nice. 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] External speaker recommendation.....
Then I should plan on using my Magneplanar SMGa's, because they are 2 Ohm speakers. Except I don't have a K2. Dang. wunder K6WRU On Jan 6, 2014, at 2:54 PM, Jim Brown wrote: > On 1/6/2014 2:02 PM, EricJ wrote: >> The K2 speaker has been better for CW than anything else I have tried. > > Elecraft found a VERY good speaker for the K2. Don's advice about looking > for a 4 ohm speaker is also good -- virtually all loudspeaker amplifiers have > a VERY low output Z, typically 0.1 Ohm or less, making them a constant > voltage source. By simple Ohm's law, they will provide maximum power to the > lowest impedance which they are designed. Power is E squared divided by R, > so you can use them with higher Z speakers, but you will lose 3 dB of level > for 8 ohms, another 3dB for 16 ohms. > > The second part of the equation is loudspeaker efficiency. In general, the > smaller the loudspeaker, the less efficient it is. In other words, louder = > bigger. The best 4 ohm loudspeaker I know of is the MR55, made by RCF, and > Italian company. I've used them in some high profile projects. They're not > cheap. Smaller speakers in their line are not nearly as nice. > > 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] External speaker recommendation.....
So far with my KX3, I have found the the self powered X-Mini speaker does well on CW and SSB. While not hifi, it is very good. <$40. Mel, K6KBE On Monday, January 6, 2014 2:59 PM, Walter Underwood wrote: Then I should plan on using my Magneplanar SMGa's, because they are 2 Ohm speakers. Except I don't have a K2. Dang. wunder K6WRU On Jan 6, 2014, at 2:54 PM, Jim Brown wrote: > On 1/6/2014 2:02 PM, EricJ wrote: >> The K2 speaker has been better for CW than anything else I have tried. > > Elecraft found a VERY good speaker for the K2. Don's advice about looking > for a 4 ohm speaker is also good -- virtually all loudspeaker amplifiers have > a VERY low output Z, typically 0.1 Ohm or less, making them a constant > voltage source. By simple Ohm's law, they will provide maximum power to the > lowest impedance which they are designed. Power is E squared divided by R, > so you can use them with higher Z speakers, but you will lose 3 dB of level > for 8 ohms, another 3dB for 16 ohms. > > The second part of the equation is loudspeaker efficiency. In general, the > smaller the loudspeaker, the less efficient it is. In other words, louder = > bigger. The best 4 ohm loudspeaker I know of is the MR55, made by RCF, and > Italian company. I've used them in some high profile projects. They're not > cheap. Smaller speakers in their line are not nearly as nice. > > 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] K3/0 Remote setup and Brainboxes
Thanks for your information, John. This morning I went on the Brainboxes web site and took advantage of their support page. All is set up and fine now. 73, Paul K9NU __ 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] External speaker recommendation.....
The West Mountain Radio COMspkr work great with my K3 station. Available from HRO for under $40.00. Good luck. Bill - W0BBI -- View this message in context: http://elecraft.365791.n2.nabble.com/External-speaker-recommendation-tp7582575p7582592.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: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] External speaker recommendation.....
I am currently using the Bose Companion2 Series 2. They sound really nice. They are roughly 3in.x 7in. and dual inputs so I can have the radio and my system sound card going into it without having to switch or have a second set of speakers. I think I got them on www.woot.com for around $70. 73 HNY Randy N1KWF On Mon, Jan 6, 2014 at 5:37 PM, Bob wrote: > Hi Ed, > > Well "better" is very subjective but I liked the powered > Motorola speaker. I used the original built in Motorola amp, Type 1 as > shown here: > > http://www2.opparc.org/mirrors/n0ss/www.n0ss.net/index_general.html > >They are widely available at ham flea markets and Ebay. To me > the better aspect was level as I felt the K2 was lacking for my ears. Maybe > one of the none powered ones would even work for you. > > 73, > Bob > K2TK > > > > On 1/6/2014 4:01 PM, Eddy wrote: > >> I'm amazed at how well my K2 internal speaker works and sounds! Every >> time I plug in an external speaker, I've quickly gone back to the internal >> speaker >> >> So, has anyone found an external speaker for the k2 that sounds "better" >> than the internal unit? Also, I'm really not willing to spend a bunch of $$ >> on one... >> >> Thanks and 73 >> >> ed >> __ >> >> > __ > 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 > -- Randy Lake N1KWF 73 Gunn Rd. Keene,NH __ 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] Current use K3/10 vs. K3/100
On 1/6/14 at 9:32 AM, n...@elecraft.com (Wayne Burdick) wrote: During K3/100 testing, did you try the current-drain measurements with CONFIG:KPA3 set to PA BYP? This may be lower than what you get with KPA3 set to PA NOR and the POWER control set to QRP levels. I retried the measurements changing "PA NOR" to "PA not installed" and "PA not installed" after power cycling (rebooting) the radio. Most numbers differed only by one in the least significant value. [Welcome to digital measurements. :-)] The 10 watt measurements were 40mA less than yesterday, 3.49A@10.3V vs. 3.53A@10.6V but the difference isn't very significant and may be explained by the difference in voltage. (However, I would expect higher current with less voltage.) Cheers - Bill, AE6JV --- Bill Frantz|"After all, if the conventional wisdom was working, the 408-356-8506 | rate of systems being compromised would be going down, www.pwpconsult.com | wouldn't it?" -- Marcus Ranum __ 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] QRQ KPA500 amp
According to the official Elecraft price list the KPA500-K and KPA500-F makes you send CW faster too! WooHoo! Full QRQ Break-in; 100-125V, 200-250V Does it do QSK too? I got a chuckle out of it. Mike __ 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] External speaker recommendation.....
The K2 speaker has been better for CW than anything else I have tried. No explanation. Eric KE6US My experience likewise and this includes my K3. The CW sidetone is improved and boosted even more with a right angle deflector on top of the internal speaker. A 2 inch PVC elbow (painted black) does this nicely. Mike AC5P __ 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] Dual Pass Band
On Jan 6, 2014, at 5:16 PM, Jim Brown wrote: > > Actually, it's based on things a lot more fundamental than that. In the world > of pro audio, we learned nearly four decades ago that non-flat amplitude > response is accompanied by phase shift (distortion). The ear does not like > phase distortion, and neither do decoders. Filters produce distortion, not > only when their amplitude response is changing (the slopes), but also in the > passband. > > When i first encountered the dual-filter approach separate from the decoder > itself, it looked to me like a bad idea for this reason. It was good to see > it confirmed by G3YYD in the doc for his 2Tone RTTY decoder. BTW -- Nobel > Laureate Joe Taylor, K1JT, author of the WSJT digital protocols, said exactly > the same thing during a lecture I heard him do at Pacificon several years ago. That said, the dual pass band filter is often useful for squashing QRM that also confuses the decoder. Like, when someone starts tuning up between your mark and space frequency…. Just don’t run it all the time. Use it for those brief times when you need it. Bill Coleman, AA4LR, PP-ASELMail: aa...@arrl.net Web: http://boringhamradiopart.blogspot.com Quote: "Not within a thousand years will man ever fly!" -- Wilbur Wright, 1901 __ 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] JARD Technical Standard Certification Number for K3 orK3X
On 1/6/2014 9:01 AM, Seiji Okumura wrote: K3/K3X does not have Technical Standard Certification Number. See http://www.jarl.or.jp/English/3_Application/A-3.htm And why do they not have such certification? 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, Writelog] AF Level Reverting to 0 upon Context Switch
Got no responses but learned some more that may be helpful to others: My SO2V lost audio channel problem appears to be triggered by commands that Writelog sends to K3 when changing TX focus. It happens ONLY when Writelog | Radio | Headphones = Normal. By setting Headphones = Split, the unwanted behavior goes away and both channels remain active through RX selection changes. I should have realized this from prior experience with SO2R. The reason this problem came and went during the contest was probably because I happened to use a Setup menu item that is *totally unrelated to Headphones*, most likely changing rotor control settings. That daring deed, and just about any other visit to Setup for dozens of reasons including "just looking" and not changing anything at all, always resets Headphones to Normal. (I've debated that obviously incorrect behavior with Writelog Support without success.) The behavior that I vaguely remembered from the "naked" K3 (i.e. unassisted by Writelog) was in K3 Remote when you toggle SUB on or off. This causes BOTH channels to drop out until you tweak the volume controls. I don't know if it's related to whatever Writelog is doing when you toggle focus but I believe this is the problem I heard was "on the list" at Elecraft. It's a weird, weird world. /Rick N6XI On Sun, Jan 5, 2014 at 6:15 PM, Rick Tavan N6XI wrote: > [Sorry for the cross-post; this is a matter involving both the K3 and > Writelog.] > > During this weekend's RTTY Roundup, operating SO2V, I had a strange > problem *sometimes* when changing TX focus via Writelog. I would be > listening to both main and sub-receivers with TX focus on Main. If I > toggled TX focus between Main and Sub, AF gain on the non-focus receiver > would drop to zero. Touching the AF control ever so slightly would restore > audio. It didn't matter whether I toggled focus by clicking a call in the > "other" decoder window, clicking an Entry window field or using the > EntryKbdXmitFocusDown function via a Keyboard Shortcut. Line Out audio to > the decoders did not drop out. The problem persisted for several hours but > eventually went away and both channels of audio stayed live through focus > toggle events for the rest of Saturday. But Sunday morning when I fired up > again, the problem returned. It did not seem to be a per-band issue as I > saw the problem exist and go away on the same band(s). When it was > mis-behaving, it did so on all bands that I checked and likewise when it > was behaving. I believe I had Writelog Radio Menu | Headphones Normal and > Headphones Latch set at all times. Writelog version 11.17E and K3 MCU > version 4.77. > > Although this seems at first glance to be an obvious Writelog matter, it > prompted *deja vu* feelings because a similar phenomenon (a bogus AF gain > value) shows up when cycling a K3 Remote connection and has been attributed > to a bug in K3 firmware, not yet fixed. Also, Writelog has dedicated K3 > code to support SO2V using the two receivers and the K3 SPLIT function. > That code is exercised whenever you toggle Writelog TX focus between Main > and Sub-receivers. > > Any ideas? > > Thanks & 73, > > /Rick N6XI > > -- > Rick Tavan N6XI > Truckee, CA > -- Rick Tavan N6XI Truckee, CA __ 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] JARD Technical Standard Certification Number for K3 orK3X
And why do they not have such certification? Probably I think that this is because Japanese importer and Elecraft do not apply to JARD for the examination with a certificate of K3. Oku JK1KSB - Original Message - From: "Jim Brown" To: Sent: Tuesday, January 07, 2014 2:37 PM Subject: Re: [Elecraft] JARD Technical Standard Certification Number for K3 orK3X On 1/6/2014 9:01 AM, Seiji Okumura wrote: K3/K3X does not have Technical Standard Certification Number. See http://www.jarl.or.jp/English/3_Application/A-3.htm And why do they not have such certification? 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
