K3S Noise Blanker
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I have a K3S that was new in January of this year. I am very impressed with
the radio and its' receiver. Compared to previously owned Yaesu FT1000D, 75A4, KWM-2, S-Line, Drake twins, it has the best receiver by far of the whole bunch. I do have a problem/complain in that the Noise Blanker has absolutely no effect on noise as far as I can tell. The only way I can tell the noise blanker is working is that if I turn the setting to high is seems to squelch (poor description) the received signal. Noise reduction works as I would expect. The noise blanker certainly does not work as well as some other receivers or even the Clear Speaker by West Mountain. Anyone else have this problem? --- This email has been checked for viruses by Avast antivirus software. https://www.avast.com/antivirus ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [hidden email] |
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Mine works great.... at least after I learned to configure/use it
properly.... granted, I am new to Elecraft, but very few of the advanced tools are trivial to learn/use. But it all works, and works well. ______________________ Clay Autery, KY5G On 6/4/2017 6:22 PM, Marvin Wheeler wrote: > I have a K3S that was new in January of this year. I am very impressed with > the radio and its' receiver. Compared to previously owned Yaesu FT1000D, > 75A4, KWM-2, S-Line, Drake twins, it has the best receiver by far of the > whole bunch. I do have a problem/complain in that the Noise Blanker has > absolutely no effect on noise as far as I can tell. The only way I can tell > the noise blanker is working is that if I turn the setting to high is seems > to squelch (poor description) the received signal. Noise reduction works as > I would expect. The noise blanker certainly does not work as well as some > other receivers or even the Clear Speaker by West Mountain. > > > > Anyone else have this problem? ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [hidden email] |
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In reply to this post by marvwheeler
Every summer, Reno Nevada hosts an event called "Hot August Nights," in
August but you probably figured that out. I have no idea how many classic vehicles it attracts, the number is huge, and affectionados will make their hotel reservations for next year before they leave this year. They can be found cruising around the entire area. They are truly beautiful if you like old, perfectly kept cars. They also make ignition noise. The NB on my K3 does a classic job of removing it. Sorry for the pun, but the impulse noise just goes away. Today's vehicles don't make ignition noise, and it's rare that I find impulse noise on the radio. I do find some power line hash, and a lot of SMPS noise drifting by. The NB might lower that non-impulse noise an S-unit on the meter, it really doesn't make much difference in signal intelligibility. This subject comes up regularly here. The NB on my Drake 2B was fantastic on impulse noise. So was the S-Line, and the 51J4 I had for quite awhile. They didlittle to power line noise however, and SMPS hadn't been invented then. Some noise is best eliminated at audio, I'm not surprised that your CLRspeaker works at times. Sometimes, just laying the headphones on the desk and turning up the AF gain will work wonders. So far as I've been able to discern with K3 S/n 642, the NB works as well as any NB I've used in the past. 73, Fred ("Skip") K6DGW Sparks NV USA Washoe County DM09dn On 6/4/2017 4:22 PM, Marvin Wheeler wrote: > I have a K3S that was new in January of this year. I am very impressed with > the radio and its' receiver. Compared to previously owned Yaesu FT1000D, > 75A4, KWM-2, S-Line, Drake twins, it has the best receiver by far of the > whole bunch. I do have a problem/complain in that the Noise Blanker has > absolutely no effect on noise as far as I can tell. The only way I can tell > the noise blanker is working is that if I turn the setting to high is seems > to squelch (poor description) the received signal. Noise reduction works as > I would expect. The noise blanker certainly does not work as well as some > other receivers or even the Clear Speaker by West Mountain. > > Anyone else have this problem? > ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [hidden email] |
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In reply to this post by marvwheeler
On Sun, Jun 4, 2017 at 7:22 PM, Marvin Wheeler <[hidden email]> wrote:
> The only way I can tell > the noise blanker is working is that if I turn the setting to high Hmmm, The noise blanker has two separate components, the first is a smart control of traditional IF noise blanking which has 7 variations of smart based upon narrow, medium and wide blanking width for a total of 21 varieties. The second is completely DSP using light, medium and heavy blanking based on seven different algorithms for a total of 21 DSP settings. The two kinds can be used separately or together. Do the combination math and this is a total of 483 unique settings possible with NB. K3 and K3S NB is not even remotely described by "turn the setting to high". Are we talking about the same radio? K3 and K3S NB? If we ARE talking about K3/K3S, then the A and B knobs setting NB "Level" are really not a low-high knob like a volume control and explains why you aren't getting what you want. Wide blanking is not always best. Nor is heavy DSP blanking always best. With those two knobs you are matching the blanking METHOD to the noise problem. For MY PARTICULAR noise blend around here, which absolutely, certainly, will NOT work for everyone, is DSP T1-7 and IF NAR4. That's my favorite single pick out of the 483 possibilities for my noise, and it took me a while to figure it out. But it was worth it. In winter when I get my usual noises on 160m, that combo will work decently everywhere on a band-wide S9 noise, good for S&P in contests. But at various spots in the band will drop the noise as low as S3. The band-wide result of NB has 5-10 kHz wide nulls where the NB blend hits it hard and produces those S3 spots, and I do my contest runs in those nulls. There is more than one source of line noise and the phase and amplitude relationship between the two varies with frequency, hence the nulls. Certain radio settings will also take out key clicks (complex discussion), which is a real blessing in a CW contest. With the Sub RX, the NB settings are per receiver, very cool for diversity and I can set them different ways if that works. Some folks do have a tougher learning curve than others on the Elecraft NB, but it's worth it. 73, Guy K2AV ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [hidden email] |
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In reply to this post by marvwheeler
Marvin:
I just love my K3, but I also have been unable to find a setting for the noise blanker that works as well as the one in my Kenwood TS-480. The noise blanker does have some effect on impulse noise or AC hash in some settings, but also then introduces audible distortion. This is in no way a negative post - just looking for guidance. Russ KD4JO -----Original Message----- From: [hidden email] [mailto:[hidden email]] On Behalf Of Marvin Wheeler Sent: Sunday, June 4, 2017 7:23 PM To: [hidden email] Subject: [Elecraft] K3S Noise Blanker I have a K3S that was new in January of this year. I am very impressed with the radio and its' receiver. Compared to previously owned Yaesu FT1000D, 75A4, KWM-2, S-Line, Drake twins, it has the best receiver by far of the whole bunch. I do have a problem/complain in that the Noise Blanker has absolutely no effect on noise as far as I can tell. The only way I can tell the noise blanker is working is that if I turn the setting to high is seems to squelch (poor description) the received signal. Noise reduction works as I would expect. The noise blanker certainly does not work as well as some other receivers or even the Clear Speaker by West Mountain. Anyone else have this problem? --- This email has been checked for viruses by Avast antivirus software. https://www.avast.com/antivirus ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [hidden email] ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [hidden email] |
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