[Elecraft] K3 SN 3757 resistance checks fail ?
Hi K3 friends.
I am Ramiro, EA1ABZ. I have almost finished K3 assembly and I have
reached "resistance checks" in page 45 of the assembly manual. The
measured resistance in U 12 is 445 omhs, and the manual states that
this resistance should be greater than 500 ohms ("although in some K3
it may be only slightly greater than 500 ohms"). Mi measurement is
below 500 ohms. Do you think that I should search for a fault.?
U13 resistance is 420 ohms, greater than 150 ohms, as manual says.
Thank you very much.
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Re: [Elecraft] K3 SN 3757 resistance checks fail ?
2009/12/26 Ramiro Aceves :
> Hi K3 friends.
>
> I am Ramiro, EA1ABZ. I have almost finished K3 assembly and I have
> reached "resistance checks" in page 45 of the assembly manual. The
> measured resistance in U 12 is 445 omhs, and the manual states that
> this resistance should be greater than 500 ohms ("although in some K3
> it may be only slightly greater than 500 ohms"). Mi measurement is
> below 500 ohms. Do you think that I should search for a fault.?
>
> U13 resistance is 420 ohms, greater than 150 ohms, as manual says.
>
>
>
> Thank you very much.
>
I have made resistance checks at U12 with another multimeter (cheaper
one, the first one was a FLUKE 175 ) and I get more than 2 kohms,
forward and reverse polarity.
I have made some investigation: The fluke uses 7 V to make resistance
measuremens, and the cheaper one uses 0.6 V, so that could explain the
diference. What do you think?, Do you think that I sould worry about
the resistance checks or continue doing the Initial Power On Check?
Thanks
Ramiro.
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[Elecraft] K3 SN 3757 working
Hi all. Just to share my happyness with you. I have just finished the assemnly of my new K3, SN 3757. Everything is working as expected. Every part got assembled smoothly and accurately. Congrats for guys at Elecraft. We will keep in touch for any help. Ramiro. EA1ABZ. __ 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 Microphone Choices
Yes, this cheap thing worked for me like a charm. A 5€ micrphone and some homebrewing did it. Sorry, but my web page is only in spanish. http://ea1abz.ure.es/microk3/microk3.html I hace estimated a 19.6 € cost for this mic. Good luck __ 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 RX spurs?
Hi all, I am going to describe a problem that I have found recently. Several days ago, I was encouraged by another ham to see aircraft doppler radio reflections. I wired my K3 to Linrad (www.sm5bsz.com) FFT waterfall Linux program. I tuned a spanish broadcast station on 21610 KHz (REE, Radio Exterior de España) just to see a 1KHz line on the waterfall. Soon I discovered aircraft reflections on the screen, but a nasty problem appeard. Aircraft lines on the waterfall were duplicated, as if the broadcast station carrier were a mirror. After some nightmares, headaches and own teories about this behaviour, comenting with other hams, even thinking that long path signal could have hit the aircracft (hi), suspecting that my audio card was a bad one (M-audio Fast Track Pro USB), a final testing with a FT-897 receiver told me that the spurs were generated inside the K3. Investigating further in USB, LSB , CW and DATA RX mode, I see that the problem is not present in USB or LSB modes (very slightly indeed) and is strongly noticeable in CW and DATA modes. What do cause these spur signals? What is the diference among CW-DATA vs USB-LSB modes? I will appreciate your help. I tried reproducing the problem without depending on aircrafts reflections. I used a home made PIC controlled DDS generator as an "aircraft simulator". It is not a very pure signal cause it has a builtin 40 MHz clock. I has got 50 Hz spaced spurs, so ignore them on the pictures below. You can see the pictures with comments in the following URLs: http://ea1abz.ure.es/cw.jpeg http://ea1abz.ure.es/usb-lsb-data.jpeg Many thanks for your time. 73, Ramiro, EA4NZ (ex-EA1ABZ). __ 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 RX spurs
Hello K3 fans I am a bit stranged and frustrated cause nobody has answered a single word to my email "K3 RX spurs" posted on november the 20th. No comments, no ideas After some tests I have concluded that the spurs are 3rd order intermodulation products. They only occur in DATA or CW. ¿Can anyone please, try to reproduce those products in your K3/P3 or K3/computer combination?. "DATA A" mode: Cristal filter= 2.7KHz, SHIFT=1.5 KHz, WIDTH= 2.7 kHz Tune some steady carrier in shortwave. Tune the signal to place a beautiful 1000 Hz on the waterfall Tune your signal generator 10 Hz more than the broadcast carrier frequency to get an audio signal 10 Hz over the 1000 Hz signal. Adjust generator strenght to be similar to the broadcast carrier. You will see strong beautiful 3rd order products on 1020 and 990 Hz. Swith to USB--> much more weaker 3rd order products or inexistent. http://ea1abz.ure.es/3erd-order.jpeg That is my K3 behaviour. Just want to know if my K3 is ok or not. Many thanks. I appreciate your effort in doing this test for me. 73, Ramiro, EA4NZ. PD: Volume at the speaker is zero to avoid vibrations inside the K3 case. __ 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 RX spurs
Hi Julian I am very glad to see that someone has replyied to my email. I have LINE_OUT= "nor 019" If I go down to 002 I need to rise gain at the sound card, and the intermods are the same. http://ea1abz.ure.es/spurs.jpeg This spurs seem to produce only if both test signals are close, closer than 50 Hz and in DATA/CW mode, not USB/LSB. Do not think that this spurs will cause a problem in real life operation. Just curious about the DATA/CW vs LSB/USB diferences found. Perhaps a "pile up blur" will occur when many CW stations are very close, who knows ( do not know how to say it in english) Thanks for your suggestions! 73, Ramiro, EA1ABZ. Julian, G4ILO escribió: > What output are you taking the audio from to plot these results? The line > output signal goes through an isolating transformer. I think this saturates > at quite a low audio level introducing non-linearity. You need to turn LIN > OUT down to 2 or as low as you can get. > > I haven't done the test you did, but if I look at a CW signal with a narrow > filter selected I can see a ghost image of the signal on the waterfall at > twice the audio frequency, well outside the IF passband. So I think the > problem (if indeed it is a problem - nothing is perfect) is within the audio > stages and particularly the line output. > > > Ramiro Aceves wrote: >> Hello K3 fans >> >> I am a bit stranged and frustrated cause nobody has answered a single >> word to my email "K3 RX spurs" posted on november the 20th. No comments, >> no ideas >> After some tests I have concluded that the spurs are 3rd order >> intermodulation products. They only occur in DATA or CW. >> ¿Can anyone please, try to reproduce those products in your K3/P3 or >> K3/computer combination?. >> >> "DATA A" mode: Cristal filter= 2.7KHz, SHIFT=1.5 KHz, WIDTH= 2.7 kHz >> Tune some steady carrier in shortwave. Tune the signal to place a >> beautiful 1000 Hz on the waterfall >> Tune your signal generator 10 Hz more than the broadcast carrier >> frequency to get an audio signal 10 Hz over the 1000 Hz signal. Adjust >> generator strenght to be similar to the broadcast carrier. >> >> You will see strong beautiful 3rd order products on 1020 and 990 Hz. >> Swith to USB--> much more weaker 3rd order products or inexistent. >> >> http://ea1abz.ure.es/3erd-order.jpeg >> >> That is my K3 behaviour. Just want to know if my K3 is ok or not. >> >> Many thanks. I appreciate your effort in doing this test for me. >> >> 73, Ramiro, EA4NZ. >> >> PD: Volume at the speaker is zero to avoid vibrations inside the K3 >> case. >> >> > > > - > Julian, G4ILO. K2 #392 K3 #222. > * G4ILO's Shack - http://www.g4ilo.com > * KComm - http://www.g4ilo.com/kcomm.html > * KTune - http://www.g4ilo.com/ktune.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 RX spurs
Igor Sokolov escribió: > Is this about 3rd order inband IMD? The subject was widely discussed > some time ago. Just try to search the archaive. Many information there, thanks http://www.cliftonlaboratories.com/elecraft_k3_receive_audio.htm#Introduction_and_Test_Setup_ This is very interesting, but I have not found IMD measurements made with very closed test sigs. 73, Ramiro. EA4NZ > > 73, Igor UA9DC > - Original Message - From: "Ramiro Aceves" > To: > Sent: Tuesday, November 23, 2010 3:20 PM > Subject: [Elecraft] K3 RX spurs > > > Hello K3 fans > > I am a bit stranged and frustrated cause nobody has answered a single > word to my email "K3 RX spurs" posted on november the 20th. No comments, > no ideas > After some tests I have concluded that the spurs are 3rd order > intermodulation products. They only occur in DATA or CW. > ¿Can anyone please, try to reproduce those products in your K3/P3 or > K3/computer combination?. > > "DATA A" mode: Cristal filter= 2.7KHz, SHIFT=1.5 KHz, WIDTH= 2.7 kHz > Tune some steady carrier in shortwave. Tune the signal to place a > beautiful 1000 Hz on the waterfall > Tune your signal generator 10 Hz more than the broadcast carrier > frequency to get an audio signal 10 Hz over the 1000 Hz signal. Adjust > generator strenght to be similar to the broadcast carrier. > > You will see strong beautiful 3rd order products on 1020 and 990 Hz. > Swith to USB--> much more weaker 3rd order products or inexistent. > > http://ea1abz.ure.es/3erd-order.jpeg > > That is my K3 behaviour. Just want to know if my K3 is ok or not. > > Many thanks. I appreciate your effort in doing this test for me. > > 73, Ramiro, EA4NZ. > > PD: Volume at the speaker is zero to avoid vibrations inside the K3 > case. > __ > 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 RX spurs
For comparison, sigs of FT-897 and K3. Notice the increase in IMD on DATA mode. FT-897 and K3 on USB have got similar IMD. http://ea1abz.ure.es/k3_vs_ft897.jpeg I have seen worst IMDs but I have not registered them 73, Ramiro. __ 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 RX spurs
A more evident difference in IMD between DATA and USB modes. http://ea1abz.ure.es/cw_vs_data.jpeg Thanks, Ramiro, EA4NZ __ 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 RX spurs
Lyle Johnson escribió: > Hello Ramiro! O, Yes, yess, yess Lyle, you are a genius! I must go out home now, I will tell you later!! > > It may be AGC pumping due to the close spaced signals having a beat note > that is slower than the AGC decay time. This causes the AGC to modulate > the incoming signals at the rate of the beat note, resulting in sidebands. > > Please try your test with AGC OFF, and with AGC SLOW. There is also a > special AGC command > > CONFIG:AGC DCY > > Setting it to SOFT helps with extreme QRM conditions from strong, very > closely spaced signals. > > I suspect that you have AGC FAST in CW and DATA modes, and AGC SLOW in > SSB mode, and that this may be the cause for the IMD you are seeing. > > 73, > > Lyle KK7P > __ 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 RX spurs
Thank you very much for all who reply to may problem and gave ideas and suggestions. http://ea1abz.ure.es/agcF-agcS.jpeg Notice the 3rd order spur suppression after changing from AGC-F to AGS-S settings in DATA A mode. Igor, very interesting article, what a pitty that is in russian language. This one supperb article: http://www.cliftonlaboratories.com/elecraft_k3_receive_audio.htm 73, Ramiro. EA4NZ __ 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 Rx IMD
Geoffrey Mackenzie-Kennedy escribió: > Hi Ramiro, > > Unfortunately I do not have a K3 to test because my receivers are > homebrewed. That is a very interesting thing. I have also homebrewed receivers. They are far from perfect but I love them, hi. > > I still believe that the IMD is generated by something outside of the > radios, one reason being that your results from the K3 and the FT-897 > are not very different. The differences between the AGC-S, AGC-F and > AGC-OFF results could be a symptom of some other problem. That makes sense. Once generated they would be increased by the K3 "AGC pump" How can I test that?. Can the toroid inside the antenna T tunner be the culprit? Any ideas to test will be welcome. Anyway, Kok tests so that AGC-F makes IMD. 73, Ramiro. > > 73, > Geoff > GM4ESD > > > Ramiro Aceves wrote on Tuesday, November 23, 2010, at 9:41 PM > >> If you have the time, can you make a 10Hz spaced test AGC-F, AGC-S and >> AGC-off? I will appreciate that. Of course if you hace free time for >> that. > > > > > __ 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 Rx IMD
Hello all As David suggested we continue the discussion on the list. I have done some new poor man tests, using a local AM carrier on Medium Wave at 917 KHz. For generating the other tone, I am using the same home made DDS generator as before. At this lower frequencies the signal generated by the DDS is much more cleaner. The antenna is a 6.5m long dipole on the balcony and an open wire feeder as in the earlier tests, but using only one half of the dipole by just directly connecting one open wire end to the K3 antenna connector. The reasons of doing that is that my T match tunner does not work below 1.8 MHz. This eliminates the posibility of IMD products produced on the tuner toroids. It does not remove, just in case, other no-linearities found everywhere as suggested by (sorry for my poor english, I hope you understand me). 10 Hz spacing, ACG-F: http://ea1abz.ure.es/acg-F.png Now with AGC-S, notice the strong reduction of IMD: http://ea1abz.ure.es/agc-S.png Now see the AGS-S to AGC-S-soft transition on the middle of the capture: http://ea1abz.ure.es/agc-S_vs_agc-soft.png Now see the IMD at 100Hz spacing, AGC-F to AGC-S transition at the middle of the screen: http://ea1abz.ure.es/100Hz.png Sorry for the poor noise floor, is the Madrid band noise received by the antenna. Hi. I see that the IMD problem is worse with small carrier distances. At 100 Hz spacing they are much more weaker and not problematic. 73, Ramiro. EA4NZ __ 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 Rx IMD
Thanks Guy for the explanations about IMD measurements. I need a signal generator to do better tests and get rid of the need of receiving a broadcast carrier. I was thinking in building a simple Xtal oscillator and some attenuators. 73, Ramiro. EA4NZ Guy Olinger K2AV escribió: > You do know that you cannot do valid IMD sweep measurements with AGC on? > > First thing I have to do for any measurements is turn off the AGC and > set fixed levels. Particularly very fast config of fast AGC won't > work. It won't be valid for absolute measurements, but the bandwidth > needs to be at least four times the spacing of the two to prevent AGC > severely warping the content. And then you will need to provide your > single tone sweep selectivity EXTERNAL to the K3. Your fast AGC is > pulling up the IMD tones by changing the RX gain during the sweep. > > 73, Guy. > > On Wed, Nov 24, 2010 at 3:07 PM, Ramiro Aceves <mailto:ea1...@gmail.com>> wrote: > > Hello all > > As David suggested we continue the discussion on the list. I have done > some new poor man tests, using a local AM carrier on Medium Wave at 917 > KHz. For generating the other tone, I am using the same home made DDS > generator as before. At this lower frequencies the signal generated by > the DDS is much more cleaner. The antenna is a 6.5m long dipole on the > balcony and an open wire feeder as in the earlier tests, but using only > one half of the dipole by just directly connecting one open wire end to > the K3 antenna connector. The reasons of doing that is that my T match > tunner does not work below 1.8 MHz. This eliminates the posibility of > IMD products produced on the tuner toroids. It does not remove, just in > case, other no-linearities found everywhere as suggested by (sorry for > my poor english, I hope you understand me). > > 10 Hz spacing, ACG-F: > > http://ea1abz.ure.es/acg-F.png > > > Now with AGC-S, notice the strong reduction of IMD: > > http://ea1abz.ure.es/agc-S.png > > > > Now see the AGS-S to AGC-S-soft transition on the middle of the capture: > > http://ea1abz.ure.es/agc-S_vs_agc-soft.png > > > > Now see the IMD at 100Hz spacing, AGC-F to AGC-S transition at the > middle of the screen: > > http://ea1abz.ure.es/100Hz.png > > > Sorry for the poor noise floor, is the Madrid band noise received by the > antenna. Hi. > > I see that the IMD problem is worse with small carrier distances. At 100 > Hz spacing they are much more weaker and not problematic. > > > 73, Ramiro. > > EA4NZ > __ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft@mailman.qth.net <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 LoCut/HiCut
Hi K3 fans Speaking about HI and LO Cut controls. I have notice this: Tune a carrier at for example, 1 KHz tone. Set a computer waterfall with enough frequency resolution to see few Hz changes Play with HI and LO Cut controls up and down (of course, let the 1 KHz signal pass trough the filter). Result, the carrier frecuency will be shifted by a few Hz. Do you hace same results in your K3? Do Low and Hi Cut controls only have effect on the DSP filters? Thanks, Ramiro. EA4NZ Amateur Radio Operator N5GE escribió: > Nate, > > Your explanation is excellent. > > One of the things I miss in the Rice Box Radio manuals are the diagrams used > to > describe this type of thing. Sometimes a picture really is worth a thousand > words. > > 73, > > Tom Childers > Radio Amateur N5GE > Licensed since 1976 > QCWA Member 35102 > ARRL Life Member > > > On Wed, 24 Nov 2010 15:31:38 -0600, Nate Bargmann wrote: > >> * On 2010 24 Nov 14:55 -0600, n6...@cox.net wrote: >>> Would someone please explain the purpose and function of the low cut and >>> high cut controls on the K3? There doesn't seem to be any explanation I can >>> find in the current user's manual and I'd like to make sure I'm >>> understanding their function correctly because the response I see on the P3 >>> passband icon contridicts what I expected to see occur when increasing or >>> decreasing either setting. Thanks very much. >> Gary, it may be easier to visualize each control manipulating a variable >> high pass and low pass filter. The Lo Cut cuts off low frequencies, or >> rather, sets the cutoff frequency of a high pass filter. The Hi Cut >> does likewise, except it controls the cutoff frequency of a low pass >> filter. They allow you to adjust either side of the passband >> independently. You can acheive the same thing with the Width and Shift >> controls it's just that the way the K3 is set up using Width works well >> on CW as it adjusts both cutoff frequencies but maintains a constant >> center frequency of the passband. On SSB using either the Lo or Hi Cut >> controls can significantly reduce QRM from one side or the other. >> >> On my recently departed FT-920 only the Lo and Hi Cut controls were >> available in the DSP. I like the K3's selection of either way of doing >> it depending on the situation. Over this past SSB Sweepstakes I found >> the Lo/Hi Cut indespensible for digging stations from between others. >> >> Experiment! >> >> 73, de Nate N0NB >> > > __ > 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 LoCut/HiCut
Hi all Changing HI/LO, SHIFT/WIDTH produce a few Hz change in the tunning frequency. Obviously it does not matter but here we have the waterfall: http://ea1abz.ure.es/Hz-change.png 73, Ramiro. Nate Bargmann escribió: > * On 2010 24 Nov 16:04 -0600, Ramiro Aceves wrote: >> Hi K3 fans >> >> Speaking about HI and LO Cut controls. I have notice this: >> >> Tune a carrier at for example, 1 KHz tone. >> Set a computer waterfall with enough frequency resolution to see few Hz >> changes >> Play with HI and LO Cut controls up and down (of course, let the 1 KHz >> signal pass trough the filter). >> >> Result, the carrier frecuency will be shifted by a few Hz. >> >> Do you hace same results in your K3? > > Yes. If you don't want FC to change, switch to the Width/Shift controls. > It's a feature, not a bug (TM). > >> Do Low and Hi Cut controls only have effect on the DSP filters? > > I would presume so as my understanding is that all of this "magic" takes > place in the DSP and the crystal filters operate at a fixed offset, if > required. > > 73, de Nate N0NB >> > __ 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 Rx IMD
Hi I have tried to improve my IMD test setup. It is far from perfect, but I have got rid of the broadcast station by bulding "quick and dirty " Xtal 4 MHz oscillator. It is built using a BC547 NPN bipolar transistor. http://ea1abz.ure.es/XTAL.jpg This is the beaufitul 4 MHz signal as received in the K3: http://ea1abz.ure.es/xtal.png As I do not have attenuatores nor combiners at the moment, the ugly setup is: http://ea1abz.ure.es/DDSandXTAL.jpg 50 cm wire conected at K3 antenna input. 4 MHz Xtal oscillador placed near the K3 wire antenna to produce a 9+20 signal. DDS generator tuned 10 Hz over the Xtal frequency, same level as Xtal signal. Here is the graph AGC-OFF, AGC-S, AGC-F comparison. I reduced RF gain in AGC-OFF mode to keep two tone audio signals level at the same value. Aproximate measured 3rd order products, relative to one signal level is: AGC-F: -17 dB AGC-S: -23 dB AGC-OFF: -45 dB. http://ea1abz.ure.es/AGC-off_AGC-S_AGC-F.png Let me know what do you think. This it what I can do with this poor setup. In the future, I plan to build attenuators and hybrid combiner to make a better test. 73, Ramiro. EA4NZ __ 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 Rx IMD
Thanks Geoffrey for the interesting information about IMD measuring. I see that it is a difficult task, it implies using carefully made equipment and care. Everything is out of my possibilities at the moment. I have made these easy experiments just trying to have an explanation of what occured in my K3 when tried to see aircraft reflections and got duplicated reflections. While they are not perfect, these tests have teached me implications of AGC-F/S and have duplicated a IMD problem under more "controlled" circumstances. Trying to obtain a decent test gear is a difficult task for me, and perhaps it makes no sense to invest time and money on it. I am not a receiver tester, just a curious person who likes to know why things happen. Anyway, since I changed AGC-F to AGC-S or even better AGC-off, I have no longer received duplicated traces on the screen. If I change to AGC-F I get consistent duplicated traces. I do not certainly know if the spurs are generated out or inside the K3, I tend to think that the latter. But who knows, perhaps the K3 receiver is not as perfect as many of us think. Thank you, will keep in touch. Ramiro. EA4NZ. Geoffrey Mackenzie-Kennedy escribió: > Ramiro, > > Some very good information about Combiners is published on Jack Smith's > website (Clifton Laboratories), also how to perform "IMD" tests. > > The reason for using a lowpass filter between each generator and the > combiner is to prevent the second harmonic of generator "A", for > example, getting into generator "B", mixing with the fundamental of "B" > to produce a third order product 2A - B. Similarly to keep the second > harmonic of "B" out of "A". Any mixing of other harmonics can also > result in "alien" third order products. > > If you build a "pretty" version, I would suggest that each generator be > built in its own metal box, with all DC supply leads filtered. What you > do not want is the generators talking to each other :-) > > Good luck with your project. > > 73, > Geoff > GM4ESD > > > Ramiro Aceves wrote on Thursday, November 25, 2010, at 7:52 AM: > >> No problem. I cant resist what you propose. I am going to build Xtal >> oscillator. I have a 4 MHz cristal here. The the combiner. >> Keep tuned! >> >> Ramiro > > > > __ 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] Electret microphone wiring
Hi all, I am trying to use a cheap computer microphone in my K3, front 8 pin connector. I have some doubts that I would like to solve before making a mistake: 1- Can I use pin 1 directly atached to the electret capsule and set bias in config:MIC SEL? Or should I use also some kind of resistor/condenser arrangement to the 8V DC pin6? 2- For GND: shoul I use pin 7, pin 8 or both pins? Thank you very much in advance. Ramiro. __ 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] Electret microphone wiring
Tom W8JI escribió: > <<< connector. I have some doubts that I would like to solve before making a > mistake: > > 1- Can I use pin 1 directly atached to the electret capsule and set bias > in config:MIC SEL? Or should I use also some kind of resistor/condenser > arrangement to the 8V DC pin6? > 2- For GND: shoul I use pin 7, pin 8 or both pins? > > > I just went through that. My Sennheiser headset now works fine using > internal settings for bias. > > Pin 7 and 8 are the same connection point. I do not believe it is best > that they are the same, in my unprofessional opinion one should be a > shield ground and one an audio ground, but they are the same. Oh yes, thanks for your help. I have mine working now. I have to get optimal gain and compression adjustments, but the microphone works great at first glance. > > I had to modify my audio input grounding to cure RFI. My headset has a > long cord, and when I would stretch the cord I would get bad RFI with my > yagi stacks pointed back at my house. Elecraft has a mod for this, but I > changed more. I soldered the wire around the mic connector shell to the > connector shell, and I grounded the circuit board pin 7 and 8 via a > copper foil that grounds under the cabinet screw in that corner. > > Now I absolutely no RFI into the audio no matter what I do, and with the > very long cord all stretched out like an antenna! The Elecraft mod was > an improvement, but the copper foil was a total cure for me. Thank for the information Tom. If I get some RF problems I will do that. Thank you. 73, EA4NZ, (ex EA1ABZ) > > 73 Tom > > > > __ 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] Electret microphone wiring
Thanks you very much Tom and Jim for the detailed responses. I have to test my microphone for RFI. Jim, very interesting technical web page. I have explained my easy to make microphone in my web page. Sorry, it is only in spanish but the pictures speak for themselves. http://ea1abz.ure.es/microk3/microk3.html See you on the air (mainly in CW, my favorite mode, hi) Ramiro. __ 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] Strange problem last night in my K3
Hi all, I do not know if this is a problem in my K3 or I made some mistake with K3 buttons because of I was falling asleep. Last night I was ready to do some broadcast AM listening and entered 5040 kHz on the keyboard. Frequency did not change. Tried three times and it did not work. I moved VFO A and VFO B and frequency did no change. I pressed up and down buttons in the microphone and frecuency changed. After that, VFO A and B worked again. Was this a K3 failure or it was my mistake? What dou you think? Thanks in advance Ramiro EA4NZ, ex EA1ABX __ 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] Electret microphone wiring
David Pratt escribió: > Very interesting, Ramiro, I might give that a go. > Good to see that the ABS plastic box is clearly marked "MADE IN > ENGLAND". Unfortunately we don't see that as much as we used to ;-( Yes! I also was surprised by the "made in England". That is a rare thing nowadays. Now everything is "made in china" (the computer microphone is made in china of course) or "made in Taiwan". Decades without seeing a "made in Spain" frase, hi,hi... Good college days... I am 39 now. Plastic box was expensive, around 5 euros. The same price as de microphone. I think there are cheaper computer microphones out there, but I liked the mic arm very much. PTT placement in the box is not optimal, I should have placed it on the top of the box, but there was nos room for that. -Computer microphone: 5 eur -Box: 5 eur -Mic connector: 4.5 eur -Cable: 1 eur -PTT switch:1.2 eur - Green switch: 1 eur - RED switch: 0.85 eur -Yellow switch: 0.75 eu Total: 19.3 eur See you on the air. Ramiro, EA4NZ, ex EA1ABZ > 73 de David G4DMP > > In a recent message, Ramiro Aceves wrote ... >> >> Thanks you very much Tom and Jim for the detailed responses. I have to >> test my microphone for RFI. Jim, very interesting technical web page. >> >> I have explained my easy to make microphone in my web page. Sorry, it is >> only in spanish but the pictures speak for themselves. >> >> http://ea1abz.ure.es/microk3/microk3.html >> >> See you on the air (mainly in CW, my favorite mode, hi) >> >> Ramiro. __ 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] Strange problem last night in my K3
Matt Zilmer escribió: > Sounds like you might've had LOCK engaged. Did you check that? thanks Matt, I checked that but I think LOCK was not engaged 73 Ramiro, EA4NZ > > matt W6NIA > __ 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] Strange problem last night in my K3
James Sarte escribió: > Did you have some program like HRD running while the K3 was connected? I've > noticed on a few occasions that HRD captures K3 control after some period of > time, and no actuation of front panel buttons causes any action. I haven't > noticed this in some time on my unit, but it may be worth investigating on > your end. > > 73 de James K2QI > Thanks James, but my K3 was not connected to the computer. 73, Ramiro, EA4NZ __ 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 SWR reading at low power
Hi all, Is it normal that my K3 do not show SWR reading on TUNE below 2 W power? Thanks in advance. Ramiro, EA4NZ, ex EA1ABZ __ 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 SWR reading at low power
Geoffrey Downs escribió: > On TUNE my K3 only shows SWR above 1.9w. Looks like it's normal, Ramiro. Thanks very much Geoffrey, I will sleep well tonight. > > 73 to all > > Geoff > G3UCK __ 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] Strange problem last night in my K3
Hi K3 fans. After more than a month playing with my K3 and understandig it better, I think that the problem was simply that I pressed SCAN instead of FREQ ENT, and frequency was locked cause was in SCANNING. That is the way I reproduced it and I think it makes sense. 73, Ramiro EA4NZ, ex EA1ABZ __ 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] Just curious about K3 relay switching clics
Hi all, Doing some SW listening today, I notice that there is a relay clic at 17700 KHz and another close one at 17685 KHz. Just curious about it. Is there a place where that switching frecquencies are documented? I mean, band pass ham filters, BPF3 filters and low pass filters. Thanks Ramiro. EA4NZ, ex EA1ABZ __ 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] Just curious about K3 relay switching clicks
Gary Hvizdak escribió: > Hi Ramiro, > > > > Below I’ve pasted portions of the K3 Owner’s manual (theory of > operation section) and portions of the K3 Service manual (i.e. the > schematics). > Thanks Gary for the information. I understand it better now. I would like to know if the exact frequencies of filter change are documented somewhere. Is there a K3 Service Manual around there? Thank you very much. Ramiro, EA4NZ > > > In summary, the “base” K3 has a separate BPF for each ham band, > although they share many components as follows: > > · 80/160m > > · 40/60m > > · 20/30m > > · 15/17m > > · 10/12m > > · 6m > > > > In contrast, there are only seven LPFs which are allocated/shared as > follows: > > · 160m > > · 80m > > · 40/60m > > · 20/30m > > · 15/17m > > · 10/12m > > · 6m > > > > The general coverage option includes eight additional BPFs. As with > the K3’s built-in LPFs, these BPFs also share many components as follows: > > · 500 kHz .. 2 MHz / 2 .. 3.5 MHz > > · 4 .. 7 MHz / 7 .. 10 MHz > > · 10 .. 14 MHz / 14 .. 18 MHz > > · 18 .. 23 MHz / 23 .. 28 MHz > > > > I may not have answered your question, but I learned something in > the process of attempting to. Hopefully you will get some benefit from > my analysis as well? > > > > 73, > > Gary KI4GGX > > K3 #2724 > > > > > > > > */Band-Pass Filters (BPFs)/* > > */ /* > > At back-left is the bank of ham-band BPFs. These filters are just wide > enough to cover each ham band, so they > > provide good rejection of IMD products during both transmit and receive. > Hi-Q components, including large > > toroids, ensure low loss and high signal-handling capability. General > coverage receive capability can be added > > to the K3 with the KBPF3 option, which includes another 8 band-pass > filters that cover all of the areas from 0.5 > > to 28 MHz that are not covered by the filters on the RF board. The > KBPF3 module mounts directly above the > > main BPF array, and due to its very short connections, has no effect on > the performance of the main BPFs > > during ham-band operation. > > > > > > > > > > -------- > > > > > > > > > > > > > > > > > > > > > > *Ramiro Aceves* > <mailto:elecraft%40mailman.qth.net?Subject=Re:%20%5BElecraft%5D%20Just%20curious%20about%20K3%20relay%20switching%20clics&In-Reply-To=%3C4BF4F59F.1010001%40gmail.com%3E> > /Thu May 20 04:41:03 EDT 2010/ > > > > Hi all, > > > > Doing some SW listening today, I notice that there is a relay click at > > 17700 KHz and another close one at 17685 KHz. Just curious about it. Is > > there a place where that switching frequencies are documented? I mean, > > band pass ham filters, BPF3 filters and low pass filters. > > > > Thanks > > Ramiro. EA4NZ, ex EA1ABZ > > > __ 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 50 MHz power knob behaviour
Hi dear K3 fans I experienced something that I do not know wether is normal or not. 14 MHz band: Power knob 0,1,2,3,4,5,6,7,8,9,10,11,12---> jump to --->>> 13, 14, 15 . and so on Watts. 50 MHz band: Power know 0,1,2,3,4,5,6,7,8 --->>> jump to --->>> 13, 14, 15. and so on Watts. ¿what happens with 9, 10, 11 and 12 Watts? Am I missing something? Thanks in advance Ramiro. __ 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 50 MHz power knob behaviour
David Pratt escribió: > In a recent message, Ramiro Aceves said >> I experienced something that I do not know wether is normal or not. >> >> 14 MHz band: Power knob 0,1,2,3,4,5,6,7,8,9,10,11,12---> jump to --->>> >> 13, 14, 15 . and so on Watts. >> 50 MHz band: Power know 0,1,2,3,4,5,6,7,8 --->>> jump to --->>> 13, 14, >> 15. and so on Watts. ¿what happens with 9, 10, 11 and 12 Watts? >> >> Am I missing something? > > No, I don't think you are missing anything Ramiro; my K3 behaves in > exactly the same way. > > 73 de David G4DMP > > > Thanks Ramiro. EA4NZ __ 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 50 MHz power knob behaviour
Alexandr Kobranov escribió: > There is maybe some IMD issue on 50MHz in 9 - 12Watts range so > mentioned levels skipped intentionally. > Try to go through archives... > > 73! > Lexa, ok1dst > Thank you very much Lexa 73, Ramiro, EA4NZ __ 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 50 MHz power knob behaviour
David Quental escribió: > Hello all, > > my K3 behaves same way like yours. > > Best 73. > > CT1DRB > David Quental > Thanks David 73, Ramiro.EA4NZ __ 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 50 MHz power knob behaviour
Alexandr Kobranov escribió: > Hi. > there is info from May 04, 2008 > > > We only allow up to 8 W with the lower-power amplifier stage on 6 > meters to ensure plenty of headroom (i.e., low IMD). In an future > firmware release we'll allow the high-power amplifier to cover the > presently-missing range of 8-13 W. > > 73, > Wayne > N6KR > - > > > GL&73! Thank you very much Alexandr for your accurate response. 73, see you on the bands. Ramiro. EA4NZ __ 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: switching on click
Hello Stephen and others On K3 turn on, I hear two clicks on the speaker before the display turns on (not the relay clicks). I also hear a click during K3 turning off, just when the display turns off. I agree with you, it is a stupid thing but they to not match with a superb radio. 73, EA4NZ (ex-EA1ABZ) El 04/09/11 20:13, Stephen Prior escribió: > I think that this has been mentioned before, but the K3 has a pronounced > turn on click through the loudspeaker. When connected to external speakers, > the click is loud and out of character with the quality feel of the radio. > It would be a good idea in my opinion if the audio output were to be muted > for a fraction of a second after the K3 is turned on. > > 73, Stephen G4SJP > __ > 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: switching on click
oops, Forgot to say mine is SN 3757 73, EA4NZ (ex-EA1ABZ) El 04/09/11 21:23, Ramiro Aceves escribió: > Hello Stephen and others > > On K3 turn on, I hear two clicks on the speaker before the display turns > on (not the relay clicks). > I also hear a click during K3 turning off, just when the display turns off. > > I agree with you, it is a stupid thing but they to not match with a > superb radio. > > 73, EA4NZ (ex-EA1ABZ) > > > El 04/09/11 20:13, Stephen Prior escribió: >> I think that this has been mentioned before, but the K3 has a pronounced >> turn on click through the loudspeaker. When connected to external >> speakers, >> the click is loud and out of character with the quality feel of the >> radio. >> It would be a good idea in my opinion if the audio output were to be >> muted >> for a fraction of a second after the K3 is turned on. >> >> 73, Stephen G4SJP >> __ >> 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] Pops when tunning AM broadcast stations
Hello In the past days I have been using my K3 for SW broadcast AM listening. Marvellous rig for that task, indeed. But I have notice the following: Some times scaning the bands quickly, I hear a strong "pop". The Smeter goes high and I think I have found a station. I tune backwards and there is another "pop" at the same frequency but there is no signal. The pop is present only when frequency changes, but disapears when frequency is stabiliced. For example there are strong pops at 13676 kHz, 13651 kHz, 13638 kHz, 13626 kHzplenty of them. Have you notice that in your K3? This problem does not disturb receiving stations at all but it is a nasty effect when scanning the band. Many thanks in advance. 73, Ramiro. EA4NZ. __ 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] Pops when tunning AM broadcast stations
ooops, Just for clarifying this, when I say "scaning the band" I mean "turning the dial knob" Thanks. 73, Ramiro. EA4NZ __ 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] Pops when tunning AM broadcast stations
Pops only occur if there are signals on the band. If band is closed or antenna is desconected there are no pops. 73, Ramiro. EA4NZ El 13/09/11 13:05, Ramiro Aceves escribió: > ooops, > > Just for clarifying this, when I say "scaning the band" I mean "turning > the dial knob" > Thanks. > > 73, Ramiro. EA4NZ > > __ 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] KUSB and linux
El 12/03/11 09:36, Pierfrancesco Caci escribió: > > Anyone with a KUSB using it with linux out there? Can you show me the > output of 'sudo lsusb -v' please? I'm specifically interested to know if > the iManufacturer, iProduct and iSerial fields are set to something > useful. > > Thanks > > Pf, ik5pvx > > > Hi I am using anohter brand of USB/serial adapter under Debian GNU/Linux, I do not know if can help you. 73! Ramiro, EA4NZ __ 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
