[Elecraft] K3S purchased few extras wanted
Hello all. I have just bought a used K3S and it is on its way, I expect it early next week. I am looking for a few items that maybe someone is willing to sell? 1. K3EXREF 2. KTCXO3-1 3. KFL3C-400 8 Regards Conrad PA5Y __ 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] KPA500 for sale
KPA500 HF+6m amplifier. Good condition electrically and mechanically. Includes the original kit assembly manual and a downloaded owner's manual from Elecraft. $1750 shipped. Prefer USPS money order. Sorry, no Paypal. __ 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] FIELD DAY PREP
One of the worst FD problems I’ve experienced was a Japanese transceiver (I’ve honestly forgotten the brand) in the SSB tent that transmitted a wideband hiss whenever the PTT was closed. We couldn’t operate CW on the same band even though there was no problem caused by his SSB signal. Victor 4X6GP > On 14 Jun 2019, at 20:52, Bob McGraw K4TAX wrote: > > So was the issue the result of poor shielding and connectors of cables inside > the trailer or actual antenna separation? That would do it. > > And could the SSB station be pushing the power and ALC and compression thus > likely causing distortion and splatter? That would do it. > > One of my major pet gripes for net control operators and contest operators is > the fact they believe turning things up a bit with the thinking they will be > heard a bit betterWhen in fact they are making their signal more > difficult to copy. If their station sounds good during SSB rag chew QSO's > the the same settings should also be good for contests, Field Day, and when a > net control. The mentality of turning things up a wee bit is just pure B. S. > > Bob, K4TAX > > > Sent from my iPhone > >> On Jun 14, 2019, at 10:52 AM, KENT TRIMBLE wrote: >> >> Good morning, Bob . . . >> >> We normally use 75-100 feet separation between dipoles aligned end-to-end, >> and have had no problems over the years. However, last year we were limited >> to less than 50-feet separation and I noticed the Carrier Operated Relay >> (COR) in my K3 was kicking on occasionally from the SSB station with which >> we (CW) were obliged to share a trailer. >> >> I tried a TRP-150 for the first time on the air this morning and a station >> in Michigan detected no clicks, truncating, or other aberrations. >> >> We'll see. >> >> 73, >> >> Kent K9ZTV >> >> >> >> >> >>> On 6/14/2019 10:24 AM, Bob McGraw K4TAX wrote: >>> With stations running 100 watts or less and reasonable antenna separation, >>> I've found no reason for a Receiver Input Protector. Although, it might be >>> a good idea to circumvent a "screw up" by an operator. I've seen some >>> mighty strange things done by knowledgeable hams at Field Day. >>> >>> 73 >>> >>> Bob, K4TAX >>> >>> On 6/14/2019 10:07 AM, KENT TRIMBLE wrote: Have any of you used Ameritron's "Receiver Input Protector" model TRP-150? I find no reviews on eHam. 73, Kent K9ZTV >>> >>> __ >>> 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 k9...@socket.net >>> --- >>> This email has been checked for viruses by AVG. >>> https://www.avg.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 rmcg...@blomand.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 k2vco@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] FIELD DAY PREP
Scott, You may want to take a look at http://www.websdr.org/ There are other similar resources out there also like airspy servers https://airspy.com/directory/ They even allow you to make recordings of your signals. It's a great resource for hearing/seeing your signal at remote locations. -- Rob Campbell KG6HUM On Fri, Jun 14, 2019, 11:55 AM Tox wrote: > I've started sending discreet emails to ft8 ops who are overdriving > and including screenshots, trying to make clear "it isn't the power, > you're overdriving". There isn't a well-known public resource to > provide that kind of feedback today. I've considered setting up an sdr > dongle and toolchain for 20m as a resource for stations in the San > Jose area. > > (Ideally, I'd set up a second one at someone else's place so I can > clean up my own output!) > > Scott > AD6YT > > On Fri, Jun 14, 2019 at 11:18 AM David Gilbert > wrote: > > > > > > A few years ago I was working NAQP SSB and came across this guy who was > > really loud but had such an overdriven signal nobody could copy him. He > > kept calling CQ but nobody answered. I finally threw my callsign out > > there and when he came back I told him he needed to back off on the mic > > gain if he wanted to make any contacts. It took three steps of backing > > down his gain to get him to reasonable copy. He was over 10 db weaker > > but suddenly started running stations. > > > > Cranking the knob to 11 is, as you say, totally counterproductive. > > > > 73, > > Dave AB7E > > > > > > > > On 6/14/2019 10:52 AM, Bob McGraw K4TAX wrote: > > > One of my major pet gripes for net control operators and contest > operators is the fact they believe turning things up a bit with the > thinking they will be heard a bit betterWhen in fact they are making > their signal more difficult to copy. If their station sounds good during > SSB rag chew QSO's the the same settings should also be good for contests, > Field Day, and when a net control. The mentality of turning things up a > wee bit is just pure B. S. > > > > > > Bob, K4TAX > > > > > > > > > > __ > > 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 scott.sm...@gmail.com > > > > -- > Scott Small > __ > 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 kg6...@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
[Elecraft] Wanted - P3_SVGA PCB
Thought I would ask here.. Anyone have a spare P3_SVGA laying around?? TNX Will WC2L -- William Liporace WC2L http://www.wc2l.com or http://dxc.wc2l.com AR-Cluster Node telnet dxc.wc2l.com or 144.93 MHz w...@wc2l.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] FIELD DAY PREP
Bob I wonder if your mosquitoes are bigger than ours? Ed.. -Original Message- From: elecraft-boun...@mailman.qth.net [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Bob McGraw K4TAX Sent: Friday, June 14, 2019 6:54 PM To: elecraft@mailman.qth.net Subject: Re: [Elecraft] FIELD DAY PREP Absolutely the best! And the previous scores substantiate such. I've been using a 134 ft center fed dipole with balanced feed for 50+ years at my various QTH's. I've yet to find any antenna that performs better and always consistently without effects of wind, rain, snow and ice. 73 Bob, K4TAX On 6/14/2019 6:47 PM, AB4IQ wrote: > We use Ladder line fed dipoles. The dipole is 134ft long and the feed > lines > (400 ohm Ladder Line) are cut at 96ft. one of our antennas ladder > line needs an extra length and I think it is cut at 66 ft. extra. We > place the antennas far enough apart but are in a straight line. The > ladder lines are terminated into DXEngineering baluns and with less > than ten feet of coax from the balun to the rigs. We have had three > rigs on the same band but different modes and no interference and have > been doing it this way for years. We gave up on beams, G5RV's, and > verticals long ago. Our call is W4NJA here in Paducah, Ky. and > normally operate 3A with a GOTO Station normally on 6 meters. If you > work us on CW you will be talking to my K3 with all the K3S stuff in it. The > tuner works great on all bands. > > Long term forecasts looks like maybe some rain here in far W. Kentucky. > > Ed... AB4IQ > > -Original Message- > From: elecraft-boun...@mailman.qth.net > [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of > donov...@starpower.net > Sent: Friday, June 14, 2019 12:50 PM > To: elecraft@mailman.qth.net > Subject: Re: [Elecraft] FIELD DAY PREP > > When running multiple HF transmitters simultaneously its wise to: > - avoid multi-band antennas, or > - use external bandpass filters, or even better > - avoid multi-band antennas and use bandpass filters > > > 73 > Frank > W3LPL > > - Original Message - > > From: "Bob McGraw K4TAX" > To: donov...@starpower.net > Cc: elecraft@mailman.qth.net > Sent: Friday, June 14, 2019 5:36:21 PM > Subject: Re: [Elecraft] FIELD DAY PREP > > Neither should G5RV antennas. > > Bob, K4TAX > > > Sent from my iPhone > >> On Jun 14, 2019, at 10:44 AM, donov...@starpower.net wrote: >> >> oops... I meant to say: >> >> >> Inverted V dipole and verticals are NOT allowed at W3AO >> >> 73 >> Frank >> W3LPL >> >> - Original Message - >> >> From: donov...@starpower.net >> To: elecraft@mailman.qth.net >> Sent: Friday, June 14, 2019 3:40:43 PM >> Subject: Re: [Elecraft] FIELD DAY PREP >> >> We use a dozen K3 transceivers at W3AO, we've never had a K3 failure >> despite running as many as four K3s on the same band (CW SSB Digital >> and GOTA). The four K3s on each band do not interfere with each other >> either. >> >> >> >> Our secrets to success: >> >> >> - same band antennas are horizontally polarized and oriented exactly >> end-to-end. Inverted V dipole and verticals are allowed. 100 feet of >> tip-to-tip spacing appears to be adequate, although we use much more. >> >> >> - We install W3NQN bandpass filters on every K3 to avoid overload >> from signals from nearby antennas for other bands. >> >> >> Its not widely known that K3 transceivers have built in bandpass >> filters. As far as I'm aware their performance characteristics have >> never been published, hence our preference to also also use external >> bandpass filters. >> >> >> 73 >> Frank >> W3LPL >> >> >> >> >> >> - Original Message - >> >> From: "Bob McGraw K4TAX" >> To: elecraft@mailman.qth.net >> Sent: Friday, June 14, 2019 3:24:01 PM >> Subject: Re: [Elecraft] FIELD DAY PREP >> >> With stations running 100 watts or less and reasonable antenna >> separation, I've found no reason for a Receiver Input Protector. >> Although, it might be a good idea to circumvent a "screw up" by an >> operator. I've seen some mighty strange things done by knowledgeable >> hams at Field Day. >> >> 73 >> >> Bob, K4TAX >> >> >>> On 6/14/2019 10:07 AM, KENT TRIMBLE wrote: >>> Have any of you used Ameritron's "Receiver Input Protector" model >>> TRP-150? I find no reviews on eHam. >>> >>> 73, >>> >>> Kent K9ZTV >>> >> __ >> 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 >> donov...@starpower.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
Re: [Elecraft] FIELD DAY PREP
Absolutely the best! And the previous scores substantiate such. I've been using a 134 ft center fed dipole with balanced feed for 50+ years at my various QTH's. I've yet to find any antenna that performs better and always consistently without effects of wind, rain, snow and ice. 73 Bob, K4TAX On 6/14/2019 6:47 PM, AB4IQ wrote: We use Ladder line fed dipoles. The dipole is 134ft long and the feed lines (400 ohm Ladder Line) are cut at 96ft. one of our antennas ladder line needs an extra length and I think it is cut at 66 ft. extra. We place the antennas far enough apart but are in a straight line. The ladder lines are terminated into DXEngineering baluns and with less than ten feet of coax from the balun to the rigs. We have had three rigs on the same band but different modes and no interference and have been doing it this way for years. We gave up on beams, G5RV's, and verticals long ago. Our call is W4NJA here in Paducah, Ky. and normally operate 3A with a GOTO Station normally on 6 meters. If you work us on CW you will be talking to my K3 with all the K3S stuff in it. The tuner works great on all bands. Long term forecasts looks like maybe some rain here in far W. Kentucky. Ed... AB4IQ -Original Message- From: elecraft-boun...@mailman.qth.net [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of donov...@starpower.net Sent: Friday, June 14, 2019 12:50 PM To: elecraft@mailman.qth.net Subject: Re: [Elecraft] FIELD DAY PREP When running multiple HF transmitters simultaneously its wise to: - avoid multi-band antennas, or - use external bandpass filters, or even better - avoid multi-band antennas and use bandpass filters 73 Frank W3LPL - Original Message - From: "Bob McGraw K4TAX" To: donov...@starpower.net Cc: elecraft@mailman.qth.net Sent: Friday, June 14, 2019 5:36:21 PM Subject: Re: [Elecraft] FIELD DAY PREP Neither should G5RV antennas. Bob, K4TAX Sent from my iPhone On Jun 14, 2019, at 10:44 AM, donov...@starpower.net wrote: oops... I meant to say: Inverted V dipole and verticals are NOT allowed at W3AO 73 Frank W3LPL - Original Message - From: donov...@starpower.net To: elecraft@mailman.qth.net Sent: Friday, June 14, 2019 3:40:43 PM Subject: Re: [Elecraft] FIELD DAY PREP We use a dozen K3 transceivers at W3AO, we've never had a K3 failure despite running as many as four K3s on the same band (CW SSB Digital and GOTA). The four K3s on each band do not interfere with each other either. Our secrets to success: - same band antennas are horizontally polarized and oriented exactly end-to-end. Inverted V dipole and verticals are allowed. 100 feet of tip-to-tip spacing appears to be adequate, although we use much more. - We install W3NQN bandpass filters on every K3 to avoid overload from signals from nearby antennas for other bands. Its not widely known that K3 transceivers have built in bandpass filters. As far as I'm aware their performance characteristics have never been published, hence our preference to also also use external bandpass filters. 73 Frank W3LPL - Original Message - From: "Bob McGraw K4TAX" To: elecraft@mailman.qth.net Sent: Friday, June 14, 2019 3:24:01 PM Subject: Re: [Elecraft] FIELD DAY PREP With stations running 100 watts or less and reasonable antenna separation, I've found no reason for a Receiver Input Protector. Although, it might be a good idea to circumvent a "screw up" by an operator. I've seen some mighty strange things done by knowledgeable hams at Field Day. 73 Bob, K4TAX On 6/14/2019 10:07 AM, KENT TRIMBLE wrote: Have any of you used Ameritron's "Receiver Input Protector" model TRP-150? I find no reviews on eHam. 73, Kent K9ZTV __ 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 donov...@starpower.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 donov...@starpower.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 rmcg...@blomand.net __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help:
Re: [Elecraft] FIELD DAY PREP
We use Ladder line fed dipoles. The dipole is 134ft long and the feed lines (400 ohm Ladder Line) are cut at 96ft. one of our antennas ladder line needs an extra length and I think it is cut at 66 ft. extra. We place the antennas far enough apart but are in a straight line. The ladder lines are terminated into DXEngineering baluns and with less than ten feet of coax from the balun to the rigs. We have had three rigs on the same band but different modes and no interference and have been doing it this way for years. We gave up on beams, G5RV's, and verticals long ago. Our call is W4NJA here in Paducah, Ky. and normally operate 3A with a GOTO Station normally on 6 meters. If you work us on CW you will be talking to my K3 with all the K3S stuff in it. The tuner works great on all bands. Long term forecasts looks like maybe some rain here in far W. Kentucky. Ed... AB4IQ -Original Message- From: elecraft-boun...@mailman.qth.net [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of donov...@starpower.net Sent: Friday, June 14, 2019 12:50 PM To: elecraft@mailman.qth.net Subject: Re: [Elecraft] FIELD DAY PREP When running multiple HF transmitters simultaneously its wise to: - avoid multi-band antennas, or - use external bandpass filters, or even better - avoid multi-band antennas and use bandpass filters 73 Frank W3LPL - Original Message - From: "Bob McGraw K4TAX" To: donov...@starpower.net Cc: elecraft@mailman.qth.net Sent: Friday, June 14, 2019 5:36:21 PM Subject: Re: [Elecraft] FIELD DAY PREP Neither should G5RV antennas. Bob, K4TAX Sent from my iPhone > On Jun 14, 2019, at 10:44 AM, donov...@starpower.net wrote: > > oops... I meant to say: > > > Inverted V dipole and verticals are NOT allowed at W3AO > > 73 > Frank > W3LPL > > - Original Message - > > From: donov...@starpower.net > To: elecraft@mailman.qth.net > Sent: Friday, June 14, 2019 3:40:43 PM > Subject: Re: [Elecraft] FIELD DAY PREP > > We use a dozen K3 transceivers at W3AO, we've never had a K3 failure > despite running as many as four K3s on the same band (CW SSB Digital > and GOTA). The four K3s on each band do not interfere with each other > either. > > > > Our secrets to success: > > > - same band antennas are horizontally polarized and oriented exactly > end-to-end. Inverted V dipole and verticals are allowed. 100 feet of > tip-to-tip spacing appears to be adequate, although we use much more. > > > - We install W3NQN bandpass filters on every K3 to avoid overload from > signals from nearby antennas for other bands. > > > Its not widely known that K3 transceivers have built in bandpass > filters. As far as I'm aware their performance characteristics have > never been published, hence our preference to also also use external > bandpass filters. > > > 73 > Frank > W3LPL > > > > > > - Original Message - > > From: "Bob McGraw K4TAX" > To: elecraft@mailman.qth.net > Sent: Friday, June 14, 2019 3:24:01 PM > Subject: Re: [Elecraft] FIELD DAY PREP > > With stations running 100 watts or less and reasonable antenna > separation, I've found no reason for a Receiver Input Protector. > Although, it might be a good idea to circumvent a "screw up" by an > operator. I've seen some mighty strange things done by knowledgeable > hams at Field Day. > > 73 > > Bob, K4TAX > > >> On 6/14/2019 10:07 AM, KENT TRIMBLE wrote: >> Have any of you used Ameritron's "Receiver Input Protector" model >> TRP-150? I find no reviews on eHam. >> >> 73, >> >> Kent K9ZTV >> > > __ > 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 donov...@starpower.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 donov...@starpower.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 rmcg...@blomand.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
Re: [Elecraft] K3 Port sharing redux
Very good info to know. Thanks for sharing. 73 Bob, K4TAX Sent from my iPhone > On Jun 14, 2019, at 5:58 PM, Wes wrote: > > In an earlier post I asked for help from the collective wisdom of this group. > In response I received a lot, some via the reflector, some privately. I > would like to thank all for the assistance. > > Some of what I learned I'll repeat. > > 1) WSJT-X can be run using port sharing despite the common wisdom. I found > that Omni-rig was the answer, in my case anyway. > > 2) LP-Bridge will work, if Omni-rig is used and WSJT-X is "connected" to the > first virtual port. > > 3) Contrary to popular belief, LP-Bridge was stable. (I've been running it > for years without WSJT) > > 4) I'm trying the trial version of Win4K3Suite. If com0com is used, it too > works, with one caveat so far. > > 5) Setting up the ports is a PITA and one secret is to "Save" things that > you think are configured. > > 6) Looking at com0com ports in Windows Device Manager only the last pair > will show the two comport IDs. The way my brain works this made it appear > that the previously setup pairs were broken; they're not. > > 7) LP-Bridge will autostart programs flawlessly. It does take longer than > Win4K3 to initiate because it creates the virtual ports at runtime. > > 8) It seems that Win4K3 will not autostart programs unless they are .exes. > The way I have DXBase installed (recommended) is in the root directory. > Windows UAC will prompt for permission to run the .exe, so I use a Windows > task to start the program. LP-Bridge will execute the task, Win4K3 will not, > so I have to start it manually answering to UAC before Win4K3 will start. If > this can be fixed, I might be inclined to buy the program. > > Comments welcome. > > Wes N7WS > > __ > 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 rmcg...@blomand.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] Help with IF Noise, DSP Noise, NR settings
Thanks for the mention of the Collins document. I had not seen it and after a search and finding it, I was amazed at how much of it was similar to what I established independently. If you happen to look at the bottom of my QRZ bio you can see the mobile rig belonging to a boyhood neighbor. He gave me my first exams, but I wouldn't call him an Elmer in the mentoring sense. He built the mobile because a powerline running through his property prevented him from hearing anything. That was until Collins came out with their noise blanker for his 75A-4. (I never understood why he didn't just move but I think his trust fund income came after he moved there.) Wes N7WS On 6/14/2019 11:33 AM, Bob McGraw K4TAX wrote: David et al; My statement is almost word for word from the Elecraft K3 manual. And some from work done by Art Collins and company at Collins Radio. They prescribed the function of a Noise Blanker as follows: "The following operational requirements were kept in mind: 1. Reduction of ignition noise from vehicles. 2. Reduction of power line corona noise occurring at 120 CPS repetition rates. 3. Reduction of local thunderstorm disturbances. 4. And, in general, reduction of any man-made noise which is impulsive in nature. Basically, all the above forms of noise interference are impulsive functions with repetition rates than can extend up to 100 KC in the case of the strokes in a thunderstorm." Those are my sources. Again both descriptions use repetitive pulse rates which are impulsive in nature. In order for a NB to function efficiently it is best suited in a wide band signal path that is not restricted by filters. Hence a wide IF stage of the receiver before any filtering. As to thunderstorms, since lightning contains many pulses in a single stroke, the NB is suited to minimize those pulses while at the same time, the bulk of the strike energy is affecting the receiver in other means. Namely AGC. Many receivers suffer grossly from this phenomenon. Fortunately Elecraft and Tentec took actions with their designs to minimize this phenomenon based on the work of Rob Sherwood. And regarding thunderstorms, there is a clear difference in the stroke and content of such for a "local thunderstorm" as compared to the noise from distant thunderstorms several hundred miles away. The distant thunderstorm is affected by propagation and may have several wave fronts with different arrival times where as a local thunderstorm only has a single wave front. Hence the waveform is quite different and the means to suppress such will be different. 73 Bob, K4TAX __ 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] K3 Port sharing redux
In an earlier post I asked for help from the collective wisdom of this group. In response I received a lot, some via the reflector, some privately. I would like to thank all for the assistance. Some of what I learned I'll repeat. 1) WSJT-X can be run using port sharing despite the common wisdom. I found that Omni-rig was the answer, in my case anyway. 2) LP-Bridge will work, if Omni-rig is used and WSJT-X is "connected" to the first virtual port. 3) Contrary to popular belief, LP-Bridge was stable. (I've been running it for years without WSJT) 4) I'm trying the trial version of Win4K3Suite. If com0com is used, it too works, with one caveat so far. 5) Setting up the ports is a PITA and one secret is to "Save" things that you think are configured. 6) Looking at com0com ports in Windows Device Manager only the last pair will show the two comport IDs. The way my brain works this made it appear that the previously setup pairs were broken; they're not. 7) LP-Bridge will autostart programs flawlessly. It does take longer than Win4K3 to initiate because it creates the virtual ports at runtime. 8) It seems that Win4K3 will not autostart programs unless they are .exes. The way I have DXBase installed (recommended) is in the root directory. Windows UAC will prompt for permission to run the .exe, so I use a Windows task to start the program. LP-Bridge will execute the task, Win4K3 will not, so I have to start it manually answering to UAC before Win4K3 will start. If this can be fixed, I might be inclined to buy the program. Comments welcome. Wes N7WS __ 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] FIELD DAY PREP
Scott, my recollection was that SS7 only affected the call setup but not the transmission characteristics. It has been a while ago but that is what I remember. I believe that the REAL problem was that the system slowly evolved from a battery and ground to a pretty complicated analog/digital transmission system. Those that started with the old common battery telephones JUST KNEW that you had to talk louder on a long distance call. Very 73 - Mike - K9JRI > On Jun 14, 2019, at 2:54 PM, Tox wrote: > > Trying to remember, but wasn't that a legitimate issue with early > analog telephony? I don't recall if, pre SS7, the line amps had > automatic gain adjustment. Enough hops, didn't the signal start to > attenuate? > > Scott > AD6YT > > On Fri, Jun 14, 2019 at 11:28 AM Bob McGraw K4TAX wrote: >> >> Reminds me of a true story of my dear grandmother. I came into the >> house one day while she was on the telephone. She was almost hollering >> at the top of her voice. After she finished, I asked "grandmother why >> were you hollering?"She replied "I was talking long distance". >> >> Seems as hams do the more often than not today. If they didn't hear you >> the first time..then holler at the mike the next time. That's sure >> to get their attention. If one hollers loud enough, neither will need >> a radio. >> >> 73 >> >> Bob, K4TAX >> >> >> >> On 6/14/2019 1:17 PM, David Gilbert wrote: >>> >>> A few years ago I was working NAQP SSB and came across this guy who >>> was really loud but had such an overdriven signal nobody could copy >>> him. He kept calling CQ but nobody answered. I finally threw my >>> callsign out there and when he came back I told him he needed to back >>> off on the mic gain if he wanted to make any contacts. It took three >>> steps of backing down his gain to get him to reasonable copy. He was >>> over 10 db weaker but suddenly started running stations. >>> >>> Cranking the knob to 11 is, as you say, totally counterproductive. >>> >>> 73, >>> Dave AB7E >>> >>> >>> >>> On 6/14/2019 10:52 AM, Bob McGraw K4TAX wrote: One of my major pet gripes for net control operators and contest operators is the fact they believe turning things up a bit with the thinking they will be heard a bit betterWhen in fact they are making their signal more difficult to copy. If their station sounds good during SSB rag chew QSO's the the same settings should also be good for contests, Field Day, and when a net control. The mentality of turning things up a wee bit is just pure B. S. Bob, K4TAX >>> >>> __ >>> 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 rmcg...@blomand.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 scott.sm...@gmail.com > > > > -- > Scott Small > __ > 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 k9...@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] FIELD DAY PREP
Trying to remember, but wasn't that a legitimate issue with early analog telephony? I don't recall if, pre SS7, the line amps had automatic gain adjustment. Enough hops, didn't the signal start to attenuate? Scott AD6YT On Fri, Jun 14, 2019 at 11:28 AM Bob McGraw K4TAX wrote: > > Reminds me of a true story of my dear grandmother. I came into the > house one day while she was on the telephone. She was almost hollering > at the top of her voice. After she finished, I asked "grandmother why > were you hollering?"She replied "I was talking long distance". > > Seems as hams do the more often than not today. If they didn't hear you > the first time..then holler at the mike the next time. That's sure > to get their attention. If one hollers loud enough, neither will need > a radio. > > 73 > > Bob, K4TAX > > > > On 6/14/2019 1:17 PM, David Gilbert wrote: > > > > A few years ago I was working NAQP SSB and came across this guy who > > was really loud but had such an overdriven signal nobody could copy > > him. He kept calling CQ but nobody answered. I finally threw my > > callsign out there and when he came back I told him he needed to back > > off on the mic gain if he wanted to make any contacts. It took three > > steps of backing down his gain to get him to reasonable copy. He was > > over 10 db weaker but suddenly started running stations. > > > > Cranking the knob to 11 is, as you say, totally counterproductive. > > > > 73, > > Dave AB7E > > > > > > > > On 6/14/2019 10:52 AM, Bob McGraw K4TAX wrote: > >> One of my major pet gripes for net control operators and contest > >> operators is the fact they believe turning things up a bit with the > >> thinking they will be heard a bit betterWhen in fact they are > >> making their signal more difficult to copy. If their station sounds > >> good during SSB rag chew QSO's the the same settings should also be > >> good for contests, Field Day, and when a net control. The mentality > >> of turning things up a wee bit is just pure B. S. > >> > >> Bob, K4TAX > >> > >> > > > > __ > > 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 rmcg...@blomand.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 scott.sm...@gmail.com -- Scott Small __ 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] FIELD DAY PREP
I've started sending discreet emails to ft8 ops who are overdriving and including screenshots, trying to make clear "it isn't the power, you're overdriving". There isn't a well-known public resource to provide that kind of feedback today. I've considered setting up an sdr dongle and toolchain for 20m as a resource for stations in the San Jose area. (Ideally, I'd set up a second one at someone else's place so I can clean up my own output!) Scott AD6YT On Fri, Jun 14, 2019 at 11:18 AM David Gilbert wrote: > > > A few years ago I was working NAQP SSB and came across this guy who was > really loud but had such an overdriven signal nobody could copy him. He > kept calling CQ but nobody answered. I finally threw my callsign out > there and when he came back I told him he needed to back off on the mic > gain if he wanted to make any contacts. It took three steps of backing > down his gain to get him to reasonable copy. He was over 10 db weaker > but suddenly started running stations. > > Cranking the knob to 11 is, as you say, totally counterproductive. > > 73, > Dave AB7E > > > > On 6/14/2019 10:52 AM, Bob McGraw K4TAX wrote: > > One of my major pet gripes for net control operators and contest operators > > is the fact they believe turning things up a bit with the thinking they > > will be heard a bit betterWhen in fact they are making their signal > > more difficult to copy. If their station sounds good during SSB rag chew > > QSO's the the same settings should also be good for contests, Field Day, > > and when a net control. The mentality of turning things up a wee bit is > > just pure B. S. > > > > Bob, K4TAX > > > > > > __ > 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 scott.sm...@gmail.com -- Scott Small __ 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] [KX2] WSJT-X & Win10 Volume Mixer
That worked Don, thanks. I had to back the PC audio output down to 15% and then increase KX2 MIC GAIN to 18 with the WSJT-X slider up to ~75% with 4-5 bars ALC. QSOs are coming in slowly but surely now from 1000km+ on 5W with an indoor whip on 20m. I can’t wait to get outside! My faith is restored! Best regards, Bret aka Charles Jessee N4SRN -- Original Message -- From: Don Wilhelm To:CharlesJessee, elecraft@mailman.qth.net Sent: June 14, 2019 at 11:46 AM Subject: Re: [Elecraft] [KX2] WSJT-X Volume Mixer Bret (AKA Charles), Back down the computer level controls until you obtain the conditions in your first sentence. Than don't change the audio level controls further.You may have to "touch up the levels depending on the band. I know the internet advice is to use the audio level to control the power level, but that is wrong for Elecraft radios.Elecraft radios control power differently from all other amateur transceivers (some commercial transceivers use a similar method) - so ignore that internet advice.Set the audio for 4 bars on the "ALC" meter (that is the NO ALC point). Set the power desired with the POWER knob. See the related article on my website www.w3fpr.com. 73, Don W3FPR On 6/14/2019 11:24 AM, Charles wrote:>Hi Don - I *did* say that unclearly. What I meant was that I tried>operating 5W with the Win10 volume mixer slider at 50% and 100%. At>50% I can control 4-5 bars with MIC GAIN but at 100% ALC cannot be>rolled back to 4-5 bars - it stays way high. I’ll try as you suggest.>>Best regards,>>Bret>>aka Charles Jessee N4SRN-- Original Message -->>From: Don Wilhelm>To: Charles Jessee, elecraft@mailman.qth.net>Sent: June 14, 2019 at 11:20 AM>Subject: Re: [Elecraft] [KX2] WSJT-X Volume Mixer>>Bret,>>I am confused by the first and second sentences of your post.>In the first sentence, you say you can achieve 4 bars with the 5th one>flashing.>Then in the 2nd sentence, you say that you cannot achieve that same>condition.>>Are you aware that if you overdrive the KX2/KX3 audio with too much>input, the KX2/KX3 will shut down the audio amplifier. It may be that>you are driving it with too high an audio level. Back down on the>computer generated audio and see if things are restored to normal.>>73,>Don W3FPR>>On 6/14/2019 9:23 AM, MaverickNH wrote:>I'll add that, with Win10 volume mixer sliders set at 50%, WSJT-X>slider set>to 50%, MIC GAIN is at 3-4 to get 4 bars with 5th flashing. Running Win10>volume mixer slider to 100% does not allow 4-5 bars on the KX2 TX even>with>MIC GAIN on 1 and WSJT-X slider near zero.>>BRET/N4SRN-->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 donw...@embarqmail.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] Help with IF Noise, DSP Noise, NR settings
David et al; My statement is almost word for word from the Elecraft K3 manual. And some from work done by Art Collins and company at Collins Radio. They prescribed the function of a Noise Blanker as follows: "The following operational requirements were kept in mind: 1. Reduction of ignition noise from vehicles. 2. Reduction of power line corona noise occurring at 120 CPS repetition rates. 3. Reduction of local thunderstorm disturbances. 4. And, in general, reduction of any man-made noise which is impulsive in nature. Basically, all the above forms of noise interference are impulsive functions with repetition rates than can extend up to 100 KC in the case of the strokes in a thunderstorm." Those are my sources. Again both descriptions use repetitive pulse rates which are impulsive in nature. In order for a NB to function efficiently it is best suited in a wide band signal path that is not restricted by filters. Hence a wide IF stage of the receiver before any filtering. As to thunderstorms, since lightning contains many pulses in a single stroke, the NB is suited to minimize those pulses while at the same time, the bulk of the strike energy is affecting the receiver in other means. Namely AGC. Many receivers suffer grossly from this phenomenon. Fortunately Elecraft and Tentec took actions with their designs to minimize this phenomenon based on the work of Rob Sherwood. And regarding thunderstorms, there is a clear difference in the stroke and content of such for a "local thunderstorm" as compared to the noise from distant thunderstorms several hundred miles away. The distant thunderstorm is affected by propagation and may have several wave fronts with different arrival times where as a local thunderstorm only has a single wave front. Hence the waveform is quite different and the means to suppress such will be different. 73 Bob, K4TAX On 6/14/2019 12:24 PM, David Woolley wrote: The below statement surprised me. That is not how noise blanking normally works; normally it will suppress any wide band pulse. The typical arrangement uses a high bandwidth, low delay, path, to detect the pulse. It can then mute the signal path by the time the pulse gets through the narrower filters on the main path. That will happen with single, or randomly spaced spikes. __ 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] FIELD DAY PREP
Reminds me of a true story of my dear grandmother. I came into the house one day while she was on the telephone. She was almost hollering at the top of her voice. After she finished, I asked "grandmother why were you hollering?" She replied "I was talking long distance". Seems as hams do the more often than not today. If they didn't hear you the first time..then holler at the mike the next time. That's sure to get their attention. If one hollers loud enough, neither will need a radio. 73 Bob, K4TAX On 6/14/2019 1:17 PM, David Gilbert wrote: A few years ago I was working NAQP SSB and came across this guy who was really loud but had such an overdriven signal nobody could copy him. He kept calling CQ but nobody answered. I finally threw my callsign out there and when he came back I told him he needed to back off on the mic gain if he wanted to make any contacts. It took three steps of backing down his gain to get him to reasonable copy. He was over 10 db weaker but suddenly started running stations. Cranking the knob to 11 is, as you say, totally counterproductive. 73, Dave AB7E On 6/14/2019 10:52 AM, Bob McGraw K4TAX wrote: One of my major pet gripes for net control operators and contest operators is the fact they believe turning things up a bit with the thinking they will be heard a bit better When in fact they are making their signal more difficult to copy. If their station sounds good during SSB rag chew QSO's the the same settings should also be good for contests, Field Day, and when a net control. The mentality of turning things up a wee bit is just pure B. S. Bob, K4TAX __ 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 rmcg...@blomand.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] Help with IF Noise, DSP Noise, NR settings
It may be better said that a Noise Blanker responds best to impulses with a fast rise time like ignition noise from a gasoline engine. It does not have to be repetitive (but often is). 73, Don W3FPR On 6/14/2019 2:05 PM, Wes wrote: I have one little nit to pick with this. In a properly designed blanker, there is no requirement that the noise be repetitive; blanking should occur on a single pulse or on random pulses. Blanking becomes ineffective when 1) an undesired signal appears in the detection bandwidth that exceeds the threshold and triggers the blanker more or less continuously or 2) the duration of the noise pulse is so long that intelligibility suffers. Atmospherics fall into this latter category. See: http://k6mhe.com/n7ws/Noise_Blanker.pdf for more of my opinion on this. (The missing text in the last paragraph was not my fault.) __ 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] FIELD DAY PREP
A few years ago I was working NAQP SSB and came across this guy who was really loud but had such an overdriven signal nobody could copy him. He kept calling CQ but nobody answered. I finally threw my callsign out there and when he came back I told him he needed to back off on the mic gain if he wanted to make any contacts. It took three steps of backing down his gain to get him to reasonable copy. He was over 10 db weaker but suddenly started running stations. Cranking the knob to 11 is, as you say, totally counterproductive. 73, Dave AB7E On 6/14/2019 10:52 AM, Bob McGraw K4TAX wrote: One of my major pet gripes for net control operators and contest operators is the fact they believe turning things up a bit with the thinking they will be heard a bit betterWhen in fact they are making their signal more difficult to copy. If their station sounds good during SSB rag chew QSO's the the same settings should also be good for contests, Field Day, and when a net control. The mentality of turning things up a wee bit is just pure B. S. Bob, K4TAX __ 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] Help with IF Noise, DSP Noise, NR settings
I have one little nit to pick with this. In a properly designed blanker, there is no requirement that the noise be repetitive; blanking should occur on a single pulse or on random pulses. Blanking becomes ineffective when 1) an undesired signal appears in the detection bandwidth that exceeds the threshold and triggers the blanker more or less continuously or 2) the duration of the noise pulse is so long that intelligibility suffers. Atmospherics fall into this latter category. See: http://k6mhe.com/n7ws/Noise_Blanker.pdf for more of my opinion on this. (The missing text in the last paragraph was not my fault.) Actually now that I think about it, I have another nit. Although the control on the K3 front panel says "RF Gain", which I guess differentiates it from AF Gain, it really should say "IF Gain". It has absolutely nothing to do with affecting the gain ahead of the i-f amplifier. Front end attenuation can affect noise power into preamp and/or the first mixer (and noise blanker circuit); "RF Gain" cannot. In fact RF Gain is applied first to exactly the same point as AGC, the post-filter FET. The FET can't tell the difference, which might be news to the guys who turn off the AGC and "ride the RF gain control." Wes N7WS On 6/13/2019 6:09 AM, Bob McGraw K4TAX wrote: The Noise Blanker only affects repetitive pulse noise such as ignition type noise. Lightning and atmospheric is random noise. As to the Noise Reduction, I find that use of the Attenuation and RF Gain control is far superior to using DSP systems. Also remember it is Noise Reduction and not noise elimination as many seem would like to believe. If one realized 6 dB of noise reduction using the system that's good. At the same time, any noise reduction system will add distortion to a SSB or CW signal. From very authoritative source, the optimum receiver performance configuration is to have the no signal band noise about 10 dB above the noise floor of the receiver. Since we can't change the noise floor of the receiver, the option is to change the incoming level of the noise as presented to the receiver input. The K3S receiver noise floor is about -135 dBM. If one has a no signal band noise of S-5 or -97 dBm, the difference is 38 dB. This says we need 28 dB of Attenuation and RF Gain reduction. That would be 15 dB of Attenuation and about 2 S units of RF Gain reduction or 10 dB of Attenuation and about 3 S units of RF Gain reduction. This in no way changes the sensitivity of the receiver nor does it impede the ability to hear weak signals. Unfortunately many hams belie that more gain is needed to hear weak signals. With receivers of 50+ years ago often the receiver noise exceeded the band noise. That however is not true with today's modern receivers. As to using the Noise Reduction, I do not use it at all for SSB and for CW. If I do use it I find F1 and a value of 1 to 3 about all I'm willing to accept. Of course the type and magnitude of the noise does require different settings. If I use the Noise Blanker I find it necessary to first set the IF NB to OFF. Then adjust the DSP through its values to get what seems to be the best result. Remember the value. Then set the DSP NB to OFF. Then to the IF noise adjustment and find what seems to be the best result. Leave it at that and then back to the DSP Noise blanker and set it to the previous obtained value. This optimized them individually. I've not been successful in trying to adjust both at the same time. And remember it only works on repetitive noise such as ignition noise or line noise and not random atmospheric noise. The receiver gain method works best. Hope this helps. 73 Bob, K4TAX On 6/13/2019 6:43 AM, Nr4c wrote: This is not an easy thing. First, are you hearing general band noise, a constant “ s” or pulses as in lightning, power line, or ignition type noise. For band noise, the NR will be your best solution. Experiment, but don’t go too deep. Deep settings will distort and make it sound like you’re underwater. For the pulse noises, try IF first, again don’t use extreme settings. If this doesn’t work, try the DSP settings and see if this will work. I have NB set to Med4. NR is set to F1-3. YMMV. Have fun! Sent from my iPhone ...nr4c. bill __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html 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:
Re: [Elecraft] Help with IF Noise, DSP Noise, NR settings
For weak CW signals try NR= mF5-3 with IF BW= 700-1000 Hz and APF on. The mF#-# settings mix unprocessed signal with the NR processed results. the second # sets how much. The wider IF bandwidth lets the NR work optimally on random, uncorrelated noise while the APF pops the desired signal out of the muddle the NR makes. Tune carefully using the FINE tuning rate, the APF is very narrow. There can be no other stronger signals in the IF passband. I haven't had much success using the DSP NB. The IF NB works well on pulse noise and some powerline noise but if there is a very strong signal nearby it will create some nasty artifacts. 73, Brian, K0DTJ KC6CNN wrote . Is there any information or help in finding a good setting for these. __ 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] FIELD DAY PREP
Or any other multiband antennas in a multi-transmitter situation. 73, Don W3FPR On 6/14/2019 1:36 PM, Bob McGraw K4TAX wrote: Neither should G5RV antennas. Bob, K4TAX Sent from my iPhone On Jun 14, 2019, at 10:44 AM, donov...@starpower.net wrote: oops... I meant to say: Inverted V dipole and verticals are NOT allowed at W3AO 73 Frank W3LPL - Original Message - From: donov...@starpower.net To: elecraft@mailman.qth.net Sent: Friday, June 14, 2019 3:40:43 PM Subject: Re: [Elecraft] FIELD DAY PREP We use a dozen K3 transceivers at W3AO, we've never had a K3 failure despite running as many as four K3s on the same band (CW SSB Digital and GOTA). The four K3s on each band do not interfere with each other either. Our secrets to success: - same band antennas are horizontally polarized and oriented exactly end-to-end. Inverted V dipole and verticals are allowed. 100 feet of tip-to-tip spacing appears to be adequate, although we use much more. - We install W3NQN bandpass filters on every K3 to avoid overload from signals from nearby antennas for other bands. Its not widely known that K3 transceivers have built in bandpass filters. As far as I'm aware their performance characteristics have never been published, hence our preference to also also use external bandpass filters. 73 Frank W3LPL - Original Message - From: "Bob McGraw K4TAX" To: elecraft@mailman.qth.net Sent: Friday, June 14, 2019 3:24:01 PM Subject: Re: [Elecraft] FIELD DAY PREP With stations running 100 watts or less and reasonable antenna separation, I've found no reason for a Receiver Input Protector. Although, it might be a good idea to circumvent a "screw up" by an operator. I've seen some mighty strange things done by knowledgeable hams at Field Day. 73 Bob, K4TAX On 6/14/2019 10:07 AM, KENT TRIMBLE wrote: Have any of you used Ameritron's "Receiver Input Protector" model TRP-150? I find no reviews on eHam. 73, Kent K9ZTV __ 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 donov...@starpower.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 donov...@starpower.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 rmcg...@blomand.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 donw...@embarqmail.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] FIELD DAY PREP
So was the issue the result of poor shielding and connectors of cables inside the trailer or actual antenna separation? That would do it. And could the SSB station be pushing the power and ALC and compression thus likely causing distortion and splatter? That would do it. One of my major pet gripes for net control operators and contest operators is the fact they believe turning things up a bit with the thinking they will be heard a bit betterWhen in fact they are making their signal more difficult to copy. If their station sounds good during SSB rag chew QSO's the the same settings should also be good for contests, Field Day, and when a net control. The mentality of turning things up a wee bit is just pure B. S. Bob, K4TAX Sent from my iPhone > On Jun 14, 2019, at 10:52 AM, KENT TRIMBLE wrote: > > Good morning, Bob . . . > > We normally use 75-100 feet separation between dipoles aligned end-to-end, > and have had no problems over the years. However, last year we were limited > to less than 50-feet separation and I noticed the Carrier Operated Relay > (COR) in my K3 was kicking on occasionally from the SSB station with which we > (CW) were obliged to share a trailer. > > I tried a TRP-150 for the first time on the air this morning and a station in > Michigan detected no clicks, truncating, or other aberrations. > > We'll see. > > 73, > > Kent K9ZTV > > > > > >> On 6/14/2019 10:24 AM, Bob McGraw K4TAX wrote: >> With stations running 100 watts or less and reasonable antenna separation, >> I've found no reason for a Receiver Input Protector. Although, it might be a >> good idea to circumvent a "screw up" by an operator. I've seen some mighty >> strange things done by knowledgeable hams at Field Day. >> >> 73 >> >> Bob, K4TAX >> >> >>> On 6/14/2019 10:07 AM, KENT TRIMBLE wrote: >>> Have any of you used Ameritron's "Receiver Input Protector" model TRP-150? >>> I find no reviews on eHam. >>> >>> 73, >>> >>> Kent K9ZTV >>> >> >> __ >> 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 k9...@socket.net >> --- >> This email has been checked for viruses by AVG. >> https://www.avg.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 rmcg...@blomand.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] FIELD DAY PREP
When running multiple HF transmitters simultaneously its wise to: - avoid multi-band antennas, or - use external bandpass filters, or even better - avoid multi-band antennas and use bandpass filters 73 Frank W3LPL - Original Message - From: "Bob McGraw K4TAX" To: donov...@starpower.net Cc: elecraft@mailman.qth.net Sent: Friday, June 14, 2019 5:36:21 PM Subject: Re: [Elecraft] FIELD DAY PREP Neither should G5RV antennas. Bob, K4TAX Sent from my iPhone > On Jun 14, 2019, at 10:44 AM, donov...@starpower.net wrote: > > oops... I meant to say: > > > Inverted V dipole and verticals are NOT allowed at W3AO > > 73 > Frank > W3LPL > > - Original Message - > > From: donov...@starpower.net > To: elecraft@mailman.qth.net > Sent: Friday, June 14, 2019 3:40:43 PM > Subject: Re: [Elecraft] FIELD DAY PREP > > We use a dozen K3 transceivers at W3AO, we've never had a K3 > failure despite running as many as four K3s on the same band > (CW SSB Digital and GOTA). The four K3s on each band do not > interfere with each other either. > > > > Our secrets to success: > > > - same band antennas are horizontally polarized and oriented exactly > end-to-end. Inverted V dipole and verticals are allowed. 100 feet > of tip-to-tip spacing appears to be adequate, although we use much more. > > > - We install W3NQN bandpass filters on every K3 to avoid overload > from signals from nearby antennas for other bands. > > > Its not widely known that K3 transceivers have built in bandpass > filters. As far as I'm aware their performance characteristics have > never been published, hence our preference to also also use external > bandpass filters. > > > 73 > Frank > W3LPL > > > > > > - Original Message - > > From: "Bob McGraw K4TAX" > To: elecraft@mailman.qth.net > Sent: Friday, June 14, 2019 3:24:01 PM > Subject: Re: [Elecraft] FIELD DAY PREP > > With stations running 100 watts or less and reasonable antenna > separation, I've found no reason for a Receiver Input Protector. > Although, it might be a good idea to circumvent a "screw up" by an > operator. I've seen some mighty strange things done by knowledgeable > hams at Field Day. > > 73 > > Bob, K4TAX > > >> On 6/14/2019 10:07 AM, KENT TRIMBLE wrote: >> Have any of you used Ameritron's "Receiver Input Protector" model >> TRP-150? I find no reviews on eHam. >> >> 73, >> >> Kent K9ZTV >> > > __ > 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 donov...@starpower.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 donov...@starpower.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 rmcg...@blomand.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] FIELD DAY PREP
Neither should G5RV antennas. Bob, K4TAX Sent from my iPhone > On Jun 14, 2019, at 10:44 AM, donov...@starpower.net wrote: > > oops... I meant to say: > > > Inverted V dipole and verticals are NOT allowed at W3AO > > 73 > Frank > W3LPL > > - Original Message - > > From: donov...@starpower.net > To: elecraft@mailman.qth.net > Sent: Friday, June 14, 2019 3:40:43 PM > Subject: Re: [Elecraft] FIELD DAY PREP > > We use a dozen K3 transceivers at W3AO, we've never had a K3 > failure despite running as many as four K3s on the same band > (CW SSB Digital and GOTA). The four K3s on each band do not > interfere with each other either. > > > > Our secrets to success: > > > - same band antennas are horizontally polarized and oriented exactly > end-to-end. Inverted V dipole and verticals are allowed. 100 feet > of tip-to-tip spacing appears to be adequate, although we use much more. > > > - We install W3NQN bandpass filters on every K3 to avoid overload > from signals from nearby antennas for other bands. > > > Its not widely known that K3 transceivers have built in bandpass > filters. As far as I'm aware their performance characteristics have > never been published, hence our preference to also also use external > bandpass filters. > > > 73 > Frank > W3LPL > > > > > > - Original Message - > > From: "Bob McGraw K4TAX" > To: elecraft@mailman.qth.net > Sent: Friday, June 14, 2019 3:24:01 PM > Subject: Re: [Elecraft] FIELD DAY PREP > > With stations running 100 watts or less and reasonable antenna > separation, I've found no reason for a Receiver Input Protector. > Although, it might be a good idea to circumvent a "screw up" by an > operator. I've seen some mighty strange things done by knowledgeable > hams at Field Day. > > 73 > > Bob, K4TAX > > >> On 6/14/2019 10:07 AM, KENT TRIMBLE wrote: >> Have any of you used Ameritron's "Receiver Input Protector" model >> TRP-150? I find no reviews on eHam. >> >> 73, >> >> Kent K9ZTV >> > > __ > 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 donov...@starpower.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 donov...@starpower.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 rmcg...@blomand.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] [KX2] WSJT-X & Win10 Volume Mixer
>From experience, I find running any audio level at 100% is usually an >indication that the levels throughout the "system" are not correctly balanced. > With my version of Windows 10 Pro the SPKR level runs 30% to 35%. With the radio and or the Signalink the PWR slider on WSJT-X is 50 to 60% of full scale. And the Line gain on the radio is 30% to 35%. These range values work with the K3S or one of the other radios using the Signalink. Bob, K4TAX Sent from my iPhone > On Jun 14, 2019, at 10:24 AM, Charles wrote: > > bars __ 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] Help with IF Noise, DSP Noise, NR settings
The below statement surprised me. That is not how noise blanking normally works; normally it will suppress any wide band pulse. The typical arrangement uses a high bandwidth, low delay, path, to detect the pulse. It can then mute the signal path by the time the pulse gets through the narrower filters on the main path. That will happen with single, or randomly spaced spikes. -- David Woolley K2 06123 On 13/06/2019 14:09, Bob McGraw K4TAX wrote: The Noise Blanker only affects repetitive pulse noise such as ignition type noise. Lightning and atmospheric is random noise. __ 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: K2 Early Ver. A Power out problem #2438
-- Forwarded message - From: Jimithy66 Date: Thu, Jun 13, 2019 at 10:16 PM Subject: Re: [Elecraft] K2 Early Ver. A Power out problem #2438 To: Hi Don, the K2 is #2438 And has been sitting around half built for 18 years or so:-0 The manual for Rev. A calls for 16 turns for L25 and L26 and they are 16 turns. I will order the K2PAkit, and I have a good solder sucker and the wooden toothpick is a great idea. Thanks... R50 is 1/2 watt. With the PA transistors removed will check the bias circuit and reflow Bias solder joints before changing Q11 and Q13. Too bad there wasn't an easy way to isolate bias from the PA. Don, as a side note, If I touch a meter lead to R61, the collector of Q13, (PA bias) the 40m output power jumps up to 7 watts with Hi Cur displayed. Other than that the power barely reaches 2 watts with 1.9 amps. Thanks again Don, Jim / W1FMR On Thu, Jun 13, 2019 at 5:36 PM Don Wilhelm wrote: > Jim, > > Can I assume this is a newly purchased kit? Or are you building an > older one that has been sitting on someone's shelf for a long time with > Rev A boards. A serial number would be helpful - above SN 2999 will use > Rev B boards. > > Given that you have 1.4 volts on the base of the PA transistors, you > likely have one PA transistor zapped and the other may be weak. > Get the K2PAKIT from Elecraft (it contains matched PA transistors). > It also has replacements for Q11 and Q13 if needed and a replacement for > R50 if yours is not already 1/2 watt. It also contains new PA standoff > mounting hardware. > > First remove the PA transistors. If you do not have good removal tools, > clip the leads near the transistor body and remove the leads one at a > time. Clean up with solder wick and if solder remains in the holes, > heat the solder pad and push it out with a wooden toothpick. > > Now do a TUNE and measure the voltage at one of the base solder pad. It > should be 0.60 to 0.64 volts (0.8 volts is too high) If it is not > within that range, replace Q11 and Q13 and reflow the soldering on the > components in the bias circuit. Do NOT install Q7 and Q8 until the base > bias circuit is working correctly. > > After those checks (and only after), install Q7 and Q8. Do not transmit > without the heat sink installed if you value your new PA transistors. > > If this is an older Rev A kit, how many turns did you wind on L25 and > L26? The older Rev A uses 14 turns which is different than the newer kits. > > 73, > Don W3FPR > > On 6/13/2019 3:33 PM, Jimithy66 wrote: > > I finished building a basic kit with no options and the power output will > > not rise above 2 watts and current (2A) is too high for that power. > > Hi Cur flashes briefly before power output settles at 2 watts. > > > > Voltage checks found the PA base bias circuit putting out > > 1.4 VDC but 0.8 V is expected. > > > > Two PNA transistors Q11 and Q13 make up > > the bias circuit and wonder if anyone else remembers > > seeing this problem, and what may have caused it ? > > > > Thanks, > > > > Jim / W1FMR > __ 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] ModMic-4 boom microphone sale: $36.51 until midnight (Pacific Time) Sunday night
For only $36.51 the ModMic-4 adds an excellent boom microphone to your favorite Bose noise cancelling headphones (or your other favorite headphones). antlionaudio.com/collections/microphones/products/modmic-4?variant=34702706567 73 Frank W3LPL __ 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] FIELD DAY PREP
Good morning, Bob . . . We normally use 75-100 feet separation between dipoles aligned end-to-end, and have had no problems over the years. However, last year we were limited to less than 50-feet separation and I noticed the Carrier Operated Relay (COR) in my K3 was kicking on occasionally from the SSB station with which we (CW) were obliged to share a trailer. I tried a TRP-150 for the first time on the air this morning and a station in Michigan detected no clicks, truncating, or other aberrations. We'll see. 73, Kent K9ZTV On 6/14/2019 10:24 AM, Bob McGraw K4TAX wrote: With stations running 100 watts or less and reasonable antenna separation, I've found no reason for a Receiver Input Protector. Although, it might be a good idea to circumvent a "screw up" by an operator. I've seen some mighty strange things done by knowledgeable hams at Field Day. 73 Bob, K4TAX On 6/14/2019 10:07 AM, KENT TRIMBLE wrote: Have any of you used Ameritron's "Receiver Input Protector" model TRP-150? I find no reviews on eHam. 73, Kent K9ZTV __ 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 k9...@socket.net --- This email has been checked for viruses by AVG. https://www.avg.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] [KX2] WSJT-X & Win10 Volume Mixer
Bret (AKA Charles), Back down the computer level controls until you obtain the conditions in your first sentence. Than don't change the audio level controls further. You may have to "touch up the levels depending on the band. I know the internet advice is to use the audio level to control the power level, but that is wrong for Elecraft radios. Elecraft radios control power differently from all other amateur transceivers (some commercial transceivers use a similar method) - so ignore that internet advice. Set the audio for 4 bars on the "ALC" meter (that is the NO ALC point). Set the power desired with the POWER knob. See the related article on my website www.w3fpr.com. 73, Don W3FPR On 6/14/2019 11:24 AM, Charles wrote: Hi Don - I *did* say that unclearly. What I meant was that I tried operating 5W with the Win10 volume mixer slider at 50% and 100%. At 50% I can control 4-5 bars with MIC GAIN but at 100% ALC cannot be rolled back to 4-5 bars - it stays way high. I’ll try as you suggest. Best regards, Bret aka Charles Jessee N4SRN -- Original Message -- From: Don Wilhelm To: Charles Jessee, elecraft@mailman.qth.net Sent: June 14, 2019 at 11:20 AM Subject: Re: [Elecraft] [KX2] WSJT-X & Win10 Volume Mixer Bret, I am confused by the first and second sentences of your post. In the first sentence, you say you can achieve 4 bars with the 5th one flashing. Then in the 2nd sentence, you say that you cannot achieve that same condition. Are you aware that if you overdrive the KX2/KX3 audio with too much input, the KX2/KX3 will shut down the audio amplifier. It may be that you are driving it with too high an audio level. Back down on the computer generated audio and see if things are restored to normal. 73, Don W3FPR On 6/14/2019 9:23 AM, MaverickNH wrote: I'll add that, with Win10 volume mixer sliders set at 50%, WSJT-X slider set to 50%, MIC GAIN is at 3-4 to get 4 bars with 5th flashing. Running Win10 volume mixer slider to 100% does not allow 4-5 bars on the KX2 TX even with MIC GAIN on 1 and WSJT-X slider near zero. BRET/N4SRN -- 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 donw...@embarqmail.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] FIELD DAY PREP
oops... I meant to say: Inverted V dipole and verticals are NOT allowed at W3AO 73 Frank W3LPL - Original Message - From: donov...@starpower.net To: elecraft@mailman.qth.net Sent: Friday, June 14, 2019 3:40:43 PM Subject: Re: [Elecraft] FIELD DAY PREP We use a dozen K3 transceivers at W3AO, we've never had a K3 failure despite running as many as four K3s on the same band (CW SSB Digital and GOTA). The four K3s on each band do not interfere with each other either. Our secrets to success: - same band antennas are horizontally polarized and oriented exactly end-to-end. Inverted V dipole and verticals are allowed. 100 feet of tip-to-tip spacing appears to be adequate, although we use much more. - We install W3NQN bandpass filters on every K3 to avoid overload from signals from nearby antennas for other bands. Its not widely known that K3 transceivers have built in bandpass filters. As far as I'm aware their performance characteristics have never been published, hence our preference to also also use external bandpass filters. 73 Frank W3LPL - Original Message - From: "Bob McGraw K4TAX" To: elecraft@mailman.qth.net Sent: Friday, June 14, 2019 3:24:01 PM Subject: Re: [Elecraft] FIELD DAY PREP With stations running 100 watts or less and reasonable antenna separation, I've found no reason for a Receiver Input Protector. Although, it might be a good idea to circumvent a "screw up" by an operator. I've seen some mighty strange things done by knowledgeable hams at Field Day. 73 Bob, K4TAX On 6/14/2019 10:07 AM, KENT TRIMBLE wrote: > Have any of you used Ameritron's "Receiver Input Protector" model > TRP-150? I find no reviews on eHam. > > 73, > > Kent K9ZTV > __ 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 donov...@starpower.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 donov...@starpower.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] FIELD DAY PREP
We use a dozen K3 transceivers at W3AO, we've never had a K3 failure despite running as many as four K3s on the same band (CW SSB Digital and GOTA). The four K3s on each band do not interfere with each other either. Our secrets to success: - same band antennas are horizontally polarized and oriented exactly end-to-end. Inverted V dipole and verticals are allowed. 100 feet of tip-to-tip spacing appears to be adequate, although we use much more. - We install W3NQN bandpass filters on every K3 to avoid overload from signals from nearby antennas for other bands. Its not widely known that K3 transceivers have built in bandpass filters. As far as I'm aware their performance characteristics have never been published, hence our preference to also also use external bandpass filters. 73 Frank W3LPL - Original Message - From: "Bob McGraw K4TAX" To: elecraft@mailman.qth.net Sent: Friday, June 14, 2019 3:24:01 PM Subject: Re: [Elecraft] FIELD DAY PREP With stations running 100 watts or less and reasonable antenna separation, I've found no reason for a Receiver Input Protector. Although, it might be a good idea to circumvent a "screw up" by an operator. I've seen some mighty strange things done by knowledgeable hams at Field Day. 73 Bob, K4TAX On 6/14/2019 10:07 AM, KENT TRIMBLE wrote: > Have any of you used Ameritron's "Receiver Input Protector" model > TRP-150? I find no reviews on eHam. > > 73, > > Kent K9ZTV > __ 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 donov...@starpower.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] [KX2] WSJT-X & Win10 Volume Mixer
Hi Don - I *did* say that unclearly. What I meant was that I tried operating 5W with the Win10 volume mixer slider at 50% and 100%. At 50% I can control 4-5 bars with MIC GAIN but at 100% ALC cannot be rolled back to 4-5 bars - it stays way high. I’ll try as you suggest. Best regards, Bret aka Charles Jessee N4SRN -- Original Message -- From: Don Wilhelm To: Charles Jessee, elecraft@mailman.qth.net Sent: June 14, 2019 at 11:20 AM Subject: Re: [Elecraft] [KX2] WSJT-X Volume Mixer Bret, I am confused by the first and second sentences of your post. In the first sentence, you say you can achieve 4 bars with the 5th one flashing. Then in the 2nd sentence, you say that you cannot achieve that same condition. Are you aware that if you overdrive the KX2/KX3 audio with too much input, the KX2/KX3 will shut down the audio amplifier. It may be that you are driving it with too high an audio level. Back down on the computer generated audio and see if things are restored to normal. 73, Don W3FPR On 6/14/2019 9:23 AM, MaverickNH wrote: I'll add that, with Win10 volume mixer sliders set at 50%, WSJT-X slider set to 50%, MIC GAIN is at 3-4 to get 4 bars with 5th flashing. Running Win10 volume mixer slider to 100% does not allow 4-5 bars on the KX2 TX even with MIC GAIN on 1 and WSJT-X slider near zero. BRET/N4SRN -- 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 donw...@embarqmail.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] FIELD DAY PREP
With stations running 100 watts or less and reasonable antenna separation, I've found no reason for a Receiver Input Protector. Although, it might be a good idea to circumvent a "screw up" by an operator. I've seen some mighty strange things done by knowledgeable hams at Field Day. 73 Bob, K4TAX On 6/14/2019 10:07 AM, KENT TRIMBLE wrote: Have any of you used Ameritron's "Receiver Input Protector" model TRP-150? I find no reviews on eHam. 73, Kent K9ZTV __ 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] [KX2] WSJT-X & Win10 Volume Mixer
Hi Jim, The power output is set to 5W on my KX2. The heat sink is getting warm so those 5W are going somewhere! It’s raining here in Upstate NY where I’m traveling otherwise I’d try operating outside from the AX1. I also have 20m and 40m HAMsticks to try elevated on a short mask when it’s dry. Best regards, Bret aka Charles Jessee N4SRN -- Original Message -- From: Jim Rhodes To: Charles Jessee Cc: elecraft@mailman.qth.net Sent: June 14, 2019 at 11:06 AM Subject: Re: [Elecraft] [KX2] WSJT-X Volume Mixer What is the power level set at? The level controls and alc adjustments set the modulation level, but in an Elecraft rig the power out is set by the power control. The other possibility is that the stations you are printing are running much more power than you are and/or may have a higher noise level than you are experiencing. Jim Rhodes K0XU On Fri, Jun 14, 2019, 08:24 MaverickNHwrote: I'll add that, with Win10 volume mixer sliders set at 50%, WSJT-X slider set to 50%, MIC GAIN is at 3-4 to get 4 bars with 5th flashing. Running Win10 volume mixer slider to 100% does not allow 4-5 bars on the KX2 TX even with MIC GAIN on 1 and WSJT-X slider near zero. BRET/N4SRN -- 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 jimk...@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] [KX2] WSJT-X & Win10 Volume Mixer
Bret, I am confused by the first and second sentences of your post. In the first sentence, you say you can achieve 4 bars with the 5th one flashing. Then in the 2nd sentence, you say that you cannot achieve that same condition. Are you aware that if you overdrive the KX2/KX3 audio with too much input, the KX2/KX3 will shut down the audio amplifier. It may be that you are driving it with too high an audio level. Back down on the computer generated audio and see if things are restored to normal. 73, Don W3FPR On 6/14/2019 9:23 AM, MaverickNH wrote: I'll add that, with Win10 volume mixer sliders set at 50%, WSJT-X slider set to 50%, MIC GAIN is at 3-4 to get 4 bars with 5th flashing. Running Win10 volume mixer slider to 100% does not allow 4-5 bars on the KX2 TX even with MIC GAIN on 1 and WSJT-X slider near zero. BRET/N4SRN -- 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 donw...@embarqmail.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] FIELD DAY PREP
Have any of you used Ameritron's "Receiver Input Protector" model TRP-150? I find no reviews on eHam. 73, Kent K9ZTV __ 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] [KX2] WSJT-X & Win10 Volume Mixer
What is the power level set at? The level controls and alc adjustments set the modulation level, but in an Elecraft rig the power out is set by the power control. The other possibility is that the stations you are printing are running much more power than you are and/or may have a higher noise level than you are experiencing. Jim Rhodes K0XU On Fri, Jun 14, 2019, 08:24 MaverickNH wrote: > I'll add that, with Win10 volume mixer sliders set at 50%, WSJT-X slider > set > to 50%, MIC GAIN is at 3-4 to get 4 bars with 5th flashing. Running Win10 > volume mixer slider to 100% does not allow 4-5 bars on the KX2 TX even with > MIC GAIN on 1 and WSJT-X slider near zero. > > BRET/N4SRN > > > > -- > 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 jimk...@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] [KX2] WSJT-X & Win10 Volume Mixer
I'll add that, with Win10 volume mixer sliders set at 50%, WSJT-X slider set to 50%, MIC GAIN is at 3-4 to get 4 bars with 5th flashing. Running Win10 volume mixer slider to 100% does not allow 4-5 bars on the KX2 TX even with MIC GAIN on 1 and WSJT-X slider near zero. BRET/N4SRN -- 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] [KX2] WSJT-X & Win10 Volume Mixer
I’m setting up WSJT-X 2.01 on a Win10 Surface Pro 6 laptop, using a Sabrent USB Sound card and GPS USB receiver to sync time. I’m running 5W indoors on a Elecraft AX1 antenna with supplied counterpoise on 20m. ALC flashes on TX between 4-5 bars with sliders on Windows sound at 50%, WSJT-X 50% and adjusting MIC GAIN. RX is certainly down indoors with the little whip antenna but I’m receiving 5-10 stations each cycle. But nobody seems to hear me. That might be my low power indoors on a whip, but also see that WSJT-X on the Win10 Volume Mixer just barely shows a blue bar when TXing. Does this suggest too little volume output from Win10? BRET/N4SRN -- 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
