[Elecraft] No Tx audio after WSJT upgrade
I was working FT8 tonight and decided to upgrade from WSJT 2.0 to the latest 2.2. Now I have no audio on transmit. All other functions work. Decodes, band change etc. It puts the K3s in transmit but no audio. I have adjusted the Mic gain without effect. I double checked that WSJT has the K3s codec for transmit selected. Windoze shows it working as well. I’m totally stumped and wish I hadn’t upgraded now. Any ideas how to proceed ? 73, - 73, Joe, W8JH K3s, KPA 500, KAT 500 and KX3 happy user. -- Sent from: http://elecraft.365791.n2.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 Message delivered to arch...@mail-archive.com
[Elecraft] K3S Fault 9?
Trying to work the WAE SSB contest this evening, my KPA500 and KAT500 showed high SWR. When I hit TUNE on the K3s the KAT tuned OK, but a couple of times the K3s displayed FAULT 9. I looked through the K3s docs, and I didn't find any reference to faults. Can someone point me in the right direction to track down this problem? Thanks. Mike N4CF __ 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 Message delivered to arch...@mail-archive.com
Re: [Elecraft] Update on K4 manuals
Ya got to watch for the staples!! Grinning Paul KB9AVO On Fri, Sep 11, 2020, 8:08 PM Jim Brown wrote: > On 9/11/2020 1:48 PM, Ed Pflueger wrote: > > What am I going to take to the outhouse to read? > > Back is WV where I grew up it was known as "the catalog department," > where the older (and less desirable ) catalogs served a function other > than reading. > > 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 > Message delivered to pvandyke1...@gmail.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 Message delivered to arch...@mail-archive.com
Re: [Elecraft] Update on K4 manuals
On 9/11/2020 1:48 PM, Ed Pflueger wrote: What am I going to take to the outhouse to read? Back is WV where I grew up it was known as "the catalog department," where the older (and less desirable ) catalogs served a function other than reading. 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 Message delivered to arch...@mail-archive.com
Re: [Elecraft] K4 -- Spectral subtraction noise reduction
And, it will work on digital modes. John WA1EAZ > On Sep 11, 2020, at 6:30 PM, Grant Youngman wrote: > > You can’t really compare an NIR-12 to a more current implementation. The > KiwiSDR algorithm runs on a BeagleBone processor with virtually no > discernible artifacts. The artifacts were the achilles heel of the NIR-12. > I had one for a while. Never liked it. > > Presuming Elecraft delivers what they have said they’re working on, it will > be a great addition to the radio. > > Grant NQ5T > >> On Sep 11, 2020, at 3:23 PM, Tom Doligalski via Elecraft >> wrote: >> >> Spectral subtraction was used in the JPS noise reduction units long ago. I >> still have my NIR-12. >> >> Tom W4KX >> >> Sent from my iPad >> >>> On Sep 11, 2020, at 12:21 PM, Wes wrote: >>> >>> https://www.rtl-sdr.com/forum-talk-videos-from-hamvention-2017/ 51 minutes >>> in. >>> > > __ > 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 > Message delivered to jstengrev...@comcast.net __ 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 Message delivered to arch...@mail-archive.com
Re: [Elecraft] K4 -- Spectral subtraction noise reduction
You can’t really compare an NIR-12 to a more current implementation. The KiwiSDR algorithm runs on a BeagleBone processor with virtually no discernible artifacts. The artifacts were the achilles heel of the NIR-12. I had one for a while. Never liked it. Presuming Elecraft delivers what they have said they’re working on, it will be a great addition to the radio. Grant NQ5T > On Sep 11, 2020, at 3:23 PM, Tom Doligalski via Elecraft > wrote: > > Spectral subtraction was used in the JPS noise reduction units long ago. I > still have my NIR-12. > > Tom W4KX > > Sent from my iPad > >> On Sep 11, 2020, at 12:21 PM, Wes wrote: >> >> https://www.rtl-sdr.com/forum-talk-videos-from-hamvention-2017/ 51 minutes >> in. >> __ 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 Message delivered to arch...@mail-archive.com
Re: [Elecraft] K4 -- Spectral subtraction noise reduction
Spectral subtraction was used in the JPS noise reduction units long ago. I still have my NIR-12. Tom W4KX Sent from my iPad > On Sep 11, 2020, at 12:21 PM, Wes wrote: > > https://www.rtl-sdr.com/forum-talk-videos-from-hamvention-2017/ 51 minutes > in. > > Wes N7WS > > > >> On 9/11/2020 6:32 AM, Kurt Pawlikowski wrote: >> Grant, >> >> You peaked my interest. I attempted to find examples of spectral >> subtraction and only found talks about it (no audio examples). Would you >> happen to know where I might find some examples? Maybe comparing results >> between several noise reduction methods? >> >> Thanks! >> >> kurtt WB9FMC >> >>> On 9/10/2020 11:19 PM, Grant Youngman wrote: >>> I’ve recently been exploring quite a few of the many SDR receivers on >>> KiwiSDR. One of the (many) features of this system is an option to select >>> spectral subtraction NR. >>> >>> I’m now really hyped about the fact that this will be available at some >>> point on the K4. It works exceptionally well. So well, that I leave it >>> turned on most of the time. Often, stations you can barely copy down in >>> the junk literally pop up out of the noise. Don’t know if this will be >>> available at initial shipment, but it’s certainly something to look forward >>> to if not. I’ve only tried it on AM and SSB at this point, so not sure >>> about CW. >>> >>> Just something else to whet the appetite for that eventual “you’re up” >>> email from Elecraft sales … :) >>> >>> Grant NQ5T >>> __ >>> 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 >>> Message delivered to ku...@pinrod.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 >> Message delivered to wes_n...@triconet.org > > > __ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft@mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to w...@mac.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 Message delivered to arch...@mail-archive.com
Re: [Elecraft] Update on K4 manuals
Does that mean there will be no hard bound manual? The last Ice storm we had in W. KY we had no internet for 28 days at least at my house and others was longer. What am I going to take to the outhouse to read? LOL Ed.. AB4IQ -Original Message- From: elecraft-boun...@mailman.qth.net [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Wayne Burdick Sent: Thursday, September 10, 2020 8:28 PM To: Elecraft Reflector Subject: [Elecraft] Update on K4 manuals I thought I'd post an update given the many questions on this topic. I'm the bottleneck on documentation, something that wasn't supposed to happen, but...stuff happened. No need to rehash that. There are three major documents in the works: 1. K4 Built-In Operating Manual This is an .html document normally viewed on the K4's LCD or external monitor. You get to it by tapping the button labeled "?" in the lower-left-hand corner of the LCD. For review purposes the doc can be viewed in any browser. And in fact, late next week we'll be looking for a few hardy volunteers who don't mind going through 60 pages of text, trying every link. In the radio context, the operating manual is supplemented by direct hyperlinks attached to every control and menu entry. There's a "LAST CONTROL" button that takes you directly to text most closely associated with the last operation performed. 2. K4 Owner's Manual Because of its multitude of full-color illustrations, the owner's manual will be 150-200 pages when finished. It'll be a fully searchable and indexed .pdf file, and two steps up from our earlier manuals. Early K4 users have been using a much smaller document that has many of the same illustrations. The built-in operating manual provides the framework for the owner's manual, so I expect rapid progress on the latter as soon as the former is blessed. 3. K4 Programmer's Reference An early draft of this doc has been in use by a our team and by a few developers who have been vetting it for us. Many of the apps available for the K3/K3S are already working with the K4 in emulation mode. But we're trying to expedite the public version of the reference so developers can take advantage of all of the new features. * * * If you have specific questions about the K4 documentation that I didn't answer above, feel free to post them to the list, or to email me directly (though I have a feeling my inbox is about to become more popular than usual, so I can't guarantee I'll get back to you instantly). As usual, thanks for your patience. 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 Message delivered to ab...@comcast.net __ 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 Message delivered to arch...@mail-archive.com
[Elecraft] K2 VCO shield kits for sale in EU
Just bought two of those brand new kits from Chris, G4BUE, but when I received them I realised that they are surplus to my needs. ( I am not going to add them to my K2s). They are available FS. Please contact me off list. 72/73 de Vicenç, EA3ADV __ 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 Message delivered to arch...@mail-archive.com
Re: [Elecraft] test again
Hi You made it through the reflector. However please use text not anything else Also please include your name and call.73Jim H k7sss In a message dated 9/11/2020 11:36:36 AM Pacific Standard Time, elecraft@mailman.qth.net writes: __Elecraft mailing listHome: http://mailman.qth.net/mailman/listinfo/elecraftHelp: http://mailman.qth.net/mmfaq.htmPost: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.netPlease help support this email list: http://www.qsl.net/donate.htmlMessage delivered to k7...@aol.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 Message delivered to arch...@mail-archive.com
[Elecraft] test
__ 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 Message delivered to arch...@mail-archive.com
[Elecraft] test again
__ 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 Message delivered to arch...@mail-archive.com
[Elecraft] Test
__ 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 Message delivered to arch...@mail-archive.com
Re: [Elecraft] [OT] A Very Quiet Day
I grew up in So Central Los Angeles, 1/2 block from one of the original 2-circuit 230 KV transmission lines from Hoover Dam. Several times a year, LA DWP came around with a tank truck and coupled it to a pipe running up the tower. A guy climbed a ladder inside the tower, hooked up a nozzle at each of the three phases, and blew a water/air mixture at the insulators. then they moved on to the next tower. My noise level always declined about an S-unit after the bath. Often though, the problems aren't the insulators themselves but loose hardware on the pole that create micro-arcing. Rain sometimes makes that noise worse, and wind really can. 73, Fred ["Skip"] K6DGW Sparks NV DM09dn Washoe County On 9/11/2020 10:00 AM, Phil Kane wrote: On 9/10/2020 4:19 PM, David Gilbert wrote: Malaysia gets a lot of rain, things are wet much of the time, and back then (at least 30 years ago) many of the electrical insulators on the overhead power lines were dirty with pollution. I could see constant arcing across dozens of insulators. Yet one of the "cures" of QRM from electrical lines is to wash the insulators. Many large utilities have a specialized vehicle for that. We have buried utilities here so there's no insulators to wash 73 de K2ASP - Phil Kane Elecraft K2/100 s/n 5402 __ 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 Message delivered to arch...@mail-archive.com
Re: [Elecraft] [OT] A Very Quiet Day
On 9/10/2020 4:19 PM, David Gilbert wrote: > Malaysia gets a lot of rain, things are wet much of the time, and back > then (at least 30 years ago) many of the electrical insulators on the > overhead power lines were dirty with pollution. I could see constant > arcing across dozens of insulators. Yet one of the "cures" of QRM from electrical lines is to wash the insulators. Many large utilities have a specialized vehicle for that. We have buried utilities here so there's no insulators to wash 73 de K2ASP - Phil Kane Elecraft K2/100 s/n 5402 From a Clearing in the Silicon Forest Beaverton (Washington County) Oregon __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
[Elecraft] FS K3S with P3
My K3S SN:10684 Has every option installed, except the 2meter module. It has also been upgraded by Elecraft for improved Transmit IMD. Original owner; non-smoker; Latest Firmware; and in like new condition. No scratches or even smudges. Even the knobs are new. Includes connecting cables; manuals; and the original Elecraft K3S shipping box with foam support. A picture of this rig is on my QRZ page. This is the 4th K3 series that I have built. Also, my P3 SN:2710 With SVGA option & Wattmeter option. Original owner and also in like new condition. In my opinion this is the most accurate spectrum monitor on the market today. All Connector Pins (on both units) have been treated with Caig DeOxit solution for reliable performance. Total package price: $3395.00 shipped to CONUS. My Email: WB4OOA at gmail.com Ron Durie WB4OOA __ 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 Message delivered to arch...@mail-archive.com
Re: [Elecraft] K4 -- Spectral subtraction noise reduction
https://www.rtl-sdr.com/forum-talk-videos-from-hamvention-2017/ 51 minutes in. Wes N7WS On 9/11/2020 6:32 AM, Kurt Pawlikowski wrote: Grant, You peaked my interest. I attempted to find examples of spectral subtraction and only found talks about it (no audio examples). Would you happen to know where I might find some examples? Maybe comparing results between several noise reduction methods? Thanks! kurtt WB9FMC On 9/10/2020 11:19 PM, Grant Youngman wrote: I’ve recently been exploring quite a few of the many SDR receivers on KiwiSDR. One of the (many) features of this system is an option to select spectral subtraction NR. I’m now really hyped about the fact that this will be available at some point on the K4. It works exceptionally well. So well, that I leave it turned on most of the time. Often, stations you can barely copy down in the junk literally pop up out of the noise. Don’t know if this will be available at initial shipment, but it’s certainly something to look forward to if not. I’ve only tried it on AM and SSB at this point, so not sure about CW. Just something else to whet the appetite for that eventual “you’re up” email from Elecraft sales … :) Grant NQ5T __ 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 Message delivered to ku...@pinrod.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 Message delivered to wes_n...@triconet.org __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] KV5J's line of Digital Displays for Elecraft's W2, KXPA100, KPA500, and KPA1500
Bill looking for a display for his KPA1500 from Utah, your email keeps bouncing. Please email me again. Keith On Monday, August 31, 2020, 05:03:40 PM CDT, Keith Ennis wrote: Back on line and have units in stock after hurricane Laura. www.kv5j.com Keith, KV5J On Friday, August 14, 2020, 08:45:47 AM CDT, Keith Ennis wrote: Digital Display Unit for Elecraft's W2 Watt Meter: With the digital read out the DDU takes the guess work out of the LED lights. Digital Display Unit for Elecraft's KXPA100 amplifier: Don't wait for a fault light to come on. Keep an eye on 5 crucial readings at all times. 1. Power amplifier's heat sink temperature 2. Power amplifier's high voltage supply voltage 3. Power amplifier's current 4. Power amplifier's output power 5. SWR that the KXPA100 sees at its output Digital Display Unit for Elecraft's KPA500 amplifier: Instead of seeing only 1 crucial reading, monitor 5 at all times. 1. Power amplifier's heat sink temperature 2. Power amplifier's high voltage supply voltage 3. Power amplifier's current 4. Power amplifier's output power 5. SWR that the KPA500 sees at its output Digital Display Unit for Elecraft's KPA1500 amplifier: Displays the same display that is on the KPA1500 Amplifier Change the display on the KPA1500 and the DDU changes All of the Digital Display Units: Display Unit can be located at a more visible location Up to the RS232 limit from unit Easy to read 2 line display No USB or serial cable to computer No com port in Windows to manage No computer needed Plug and Play Simply connect the SUPPLIED dc power cable (with inline on/off switch) from the DDU to power supply and SUPPLIED XCVR SERIAL data jumper cable to the device Retains all functions of the front panel All displayed info obtained directly from the device Only 4" x 4" x 2" For more information and ordering go to: www.kv5j.com Thanks 73, Keith,KV5J __ 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 Message delivered to arch...@mail-archive.com
[Elecraft] Fwd: Re: K4 -- Spectral subtraction noise reduction
I do believe that BHI Ltd ( Graham) has been using that for years... check out their website . Under downloads there are several examples of how well it works,.( really well...) https://www.bhi-ltd.com/downloads/sound-files/ I always have been suggesting to Eric & Wayne to look at the BHI algorythm ... patented ?? maybe it has a license fee ??? but it works substantially better than 'clearspeech" and the rest of them. Till recently GAP was the US distributor of the BHI products, then Graham finally started doing US marketing himself...a much better job. Used to use BHI speakers on my Microham mk2r connected to K3 & 7800, as it was markedly better at NR. Now I have the Parametric/NR box feeding some 3" realistic box speakers. + On 9/11/2020 9:32 AM, Kurt Pawlikowski wrote: Grant, You peaked my interest. I attempted to find examples of spectral subtraction and only found talks about it (no audio examples). Would you happen to know where I might find some examples? Maybe comparing results between several noise reduction methods? Thanks! kurtt WB9FMC On 9/10/2020 11:19 PM, Grant Youngman wrote: I’ve recently been exploring quite a few of the many SDR receivers on KiwiSDR. One of the (many) features of this system is an option to select spectral subtraction NR. I’m now really hyped about the fact that this will be available at some point on the K4. It works exceptionally well. So well, that I leave it turned on most of the time. Often, stations you can barely copy down in the junk literally pop up out of the noise. Don’t know if this will be available at initial shipment, but it’s certainly something to look forward to if not. I’ve only tried it on AM and SSB at this point, so not sure about CW. Just something else to whet the appetite for that eventual “you’re up” email from Elecraft sales … :) Grant NQ5T __ 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 Message delivered to ku...@pinrod.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 Message delivered to n...@arrl.net -- 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:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] [Elecraft-KX] Help! MH3 mic PTT broken, fixable? - ELECTRET MICROPHONES
most ANY electret microphone element will be excellent for use with ham radio. The Panasonic are among the most expensive ( 8pcs New WM-61A Panasonic Electret Condenser Mic Capsule Mic ) on ebay That leaves the case cord and plug for the "mic" factory to finish. Many of the fake 'icom" mics I have bought on line have had the vinyl ( NOT RUBBER) coil cord DISINTEGRATE into peices 3-4 years later. Never has issues with switches or the cases. Remember some rigs , especially ICOM need the higher output level found with an electret, as they are designed / supplied with an eletret. Elecraft , in their wisdom, provides enough gain so while electrets work, there is enough gain to easily use a dynamic microphone. Remember when Heil sold microphones for icoms that were way too low on gain. So bob then sourced mics with electrets ( higher gain) for icom. I spent 20+ years working under contract for ( in order) Sennheiser 1976-81; AKG 81-86 Shure 86-91...while I am not an engineer one learns much along the trip. bill ( now using an AKG gooseneck paging microphone in my console pix at qrz.com) -- 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:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] K4 -- Spectral subtraction noise reduction
Grant, You peaked my interest. I attempted to find examples of spectral subtraction and only found talks about it (no audio examples). Would you happen to know where I might find some examples? Maybe comparing results between several noise reduction methods? Thanks! kurtt WB9FMC On 9/10/2020 11:19 PM, Grant Youngman wrote: I’ve recently been exploring quite a few of the many SDR receivers on KiwiSDR. One of the (many) features of this system is an option to select spectral subtraction NR. I’m now really hyped about the fact that this will be available at some point on the K4. It works exceptionally well. So well, that I leave it turned on most of the time. Often, stations you can barely copy down in the junk literally pop up out of the noise. Don’t know if this will be available at initial shipment, but it’s certainly something to look forward to if not. I’ve only tried it on AM and SSB at this point, so not sure about CW. Just something else to whet the appetite for that eventual “you’re up” email from Elecraft sales … :) Grant NQ5T __ 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 Message delivered to ku...@pinrod.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 Message delivered to arch...@mail-archive.com
Re: [Elecraft] Update on K4 manuals
On 2020-09-10 20:08:-0700, you wrote: >All manuals will be kept updated to reflect the current software. > >Wayne >N6KR Will you preserve historical versions for those who don't have upgrades? I haven't looked on the Elecraft website to see if there are version-specific manuals for other products. __ 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 Message delivered to arch...@mail-archive.com
Re: [Elecraft] [OT] A Very Quiet Day
Here in Alaska, we have frequent power outages. More often in winter due to wind storms knocking down wires. A few years ago we bought a 6500w Honda inverter generator to provide emergency power. Its large enough to supply the entire house load. One of the interesting things was noting the drop in radio noise when power is off. We see no lights in the neighborhood other than ours so any noise would be made in our house. 2m noise drop almost to S0. Normal quiet times with commercial power runs S3. Only see S2 or less on 2m when running our generator. At times local noise on 2m rises to S7 which renders the band unusable except strong local signals. I just set up my 6m eme system and measured S6/7 noise with the ARR preamp. PR6 shows S3/4. ARR gain is 25-dB vs about 15-dB for the PR6, so I added a 10-dB attenuator in-line with the ARR preamp which now matches the PR6 noise floor pretty well. ARR is closer to the antenna with 0.5 dB NF whereas the PR6 is about 0.7 dB NF. Not really noticeable with local signals but makes a little improvement with weak eme signals. When I first came to AK, I lived off the grid (about 2-3 miles from nearest power lines (town of pop 75). 80m band was S0 on my dipole at night. Really heard well back then. I now live 100 miles west of there in a buried utility area (2 to 5 acre parcels) which probably helps (though overhead lines are only 1/2 mile away. HF is typically S5 noise with my K3 (preamp off). I use the PR6 on 10m & 6m so that raises the noise floor a bit. Our pop is 4,000 spread over 76 square miles with a city of 15,000 12 miles south. Going to bush towns is no insurance for low noise. I worked in a town 400 miles west of Anchorage (pop 3500) and tried setting up a long yagi on 2m on roof above the TV station. Noise was over S9 (due to arc igniters in their furnace). 2m was totally unusable (trying for a long shot to Anchorage). They ran a monitor on the AM radio station which blared horrible noise when they shut down the transmitter at night. 73, Ed - KL7UW http://www.kl7uw.com Dubus-NA Business mail: dubus...@gmail.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 Message delivered to arch...@mail-archive.com
Re: [Elecraft] [OT] A Very Quiet Day
It has also to do with Intetnet being provided by all kinds of poorly shielded wiring hanging above ground. In V31 I always operated with a battery from a remote beach location due to continous 9+++ noise in/near my appartment block and other urban areas.73 HenkPA0C V31HV Oorspronkelijk bericht Van: James Bennett via Elecraft Datum: 10-09-2020 23:29 (GMT+01:00) Aan: Elecraft Reflector Reflector Onderwerp: Re: [Elecraft] [OT] A Very Quiet Day I can well understand that experience.Back in 2000 my new XYL and I honeymooned in St. Maarten / PJ7. I took a K2 with me and a length of wire and coax. I managed 40 - 50 CW QSO’s in between other activities. After we got back home I wrote an article that ARRL published in one of their online journals. At one time there was a link to it on the Elecraft site.Anyway, one of the things I warned prospective vacationers going to non-US sites was to be prepared for some horrendous QRN. As I mentioned in the article, many foreign countries have no laws governing RF interference. You’ll run into all sorts of crud on the power mains, not to mention some really ugly HF band obliterators in the form of cars and trucks. I suspect some places are better than others. In St. Maarten, every time any truck went down the street by our condo I had to take off the headphones for a while - it was bad, with a capital B!Jim / W6JHB> On Sep 10, 2020, at 2:17 PM, Tony Estep wrote:> > On Thu, Sep 10, 2020 at 2:53 PM Al Lorona wrote:> >> Power was shut off to my noisy urban neighborhood...radio was amazing>> yesterday for six glorious hours.>> > ==> Well, here's the flip side. My old qth was noisy enough, but the real> eye-opener came when I toted my KX3 to Hyderabad, India a few years ago. I> was teaching at the Indian School of Business and living in the faculty> apartments, and I had brought the KX3 along expecting to hear a bunch of> call-signs that would sound exotic to a midwestern Yank. So I strung up a> wire around the walls of my living room, up near the ceiling, and laid a> counterpoise out along the floor. Donning my headphones I switched it on,> looking forward to an evening of entertainment as I tuned 20 CW.> Zowie! What a cacophony of squeals, buzzes, crashes, honks and toots,> burps, whistles and grinds. The S-meter jumped up to about S9+10 and stuck> there. Nowhere on the band, it seemed, was there a slot wide enough for a> signal to peep through. Finally I was able to discern a little peep> half-buried beneath the layers of trash, a lonely VU2 calling CQ. I> answered him, but of course to no avail. On a later night I heard a few> words from a QSO between a local ham and a VR2 in Hong Kong, and that was> the sum total of my ham experience while there. Where were the noises> coming from? I dunno -- from everywhere, it sounded like.> > 73,> Tony KT0NY> __> 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> Message delivered to w6...@me.com __Elecraft mailing listHome: http://mailman.qth.net/mailman/listinfo/elecraftHelp: http://mailman.qth.net/mmfaq.htmPost: mailto:elecr...@mailman.qth.netThis list hosted by: http://www.qsl.netPlease help support this email list: http://www.qsl.net/donate.htmlMessage delivered to h...@kpnplanet.nl __ 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 Message delivered to arch...@mail-archive.com
