Re: Elecraft Digest, Vol 160, Issue 32
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OK, thanks!
> On Aug 23, 2017, at 11:45 PM, [hidden email] wrote: > > Send Elecraft mailing list submissions to > [hidden email] > > To subscribe or unsubscribe via the World Wide Web, visit > http://mailman.qth.net/mailman/listinfo/elecraft > or, via email, send a message with subject or body 'help' to > [hidden email] > > You can reach the person managing the list at > [hidden email] > > When replying, please edit your Subject line so it is more specific > than "Re: Contents of Elecraft digest..." > > > Today's Topics: > > 1. BNC Connector (Aaron K5ATG) > 2. Re: BL2 Enclosure (rich hurd WC3T) > 3. Re: BNC Connector on KXe (Brendon Whateley) > 4. Noise Reduction (P.J.Hicks) > 5. WTB KAT-100 (N4KS) > 6. Re: BNC Connector on KX3 (Phil Kane) > 7. Re: [KX3] Band Plans (Edward R Cole) > 8. Re: Noise Reduction (Kevin der Kinderen) > 9. Surprising Behavior on KX3 KXPA100 Combo (Phil Hystad) > 10. Ecoflex cable (Wes Stewart) > 11. Re: Surprising Behavior on KX3 KXPA100 Combo (Bob N3MNT) > 12. Re: Surprising Behavior on KX3 KXPA100 Combo (Phil Hystad) > 13. Re: Ecoflex cable (Mike Harris) > 14. Question about K3s and Drake L7B combo (K5MWR) > 15. Re: Noise Reduction (Scott) > 16. Re: Surprising Behavior on KX3 KXPA100 Combo (Phil Hystad) > 17. Re: Noise Reduction (Walter Underwood) > 18. Re: Noise Reduction (Fred Jensen) > 19. Re: Noise Reduction (Kevin der Kinderen) > 20. Re: [KX3] Band Plans (Todd) > 21. Re: Noise Reduction (K9MA) > 22. Re: [KX3] Band Plans (Phil Kane) > 23. OT: [KX3] Band Plans (Ken G Kopp) > 24. Re: [KX3] Band Plans (Phil Kane) > 25. Re: [KX3] Band Plans (Charlie T, K3ICH) > 26. Power source for KAT500 (Sid Frissell) > > > ---------------------------------------------------------------------- > > Message: 1 > Date: Wed, 23 Aug 2017 09:58:58 -0500 > From: Aaron K5ATG <[hidden email]> > To: [hidden email] > Subject: [Elecraft] BNC Connector > Message-ID: > <CADENs2-qbbaMPMkc=[hidden email]> > Content-Type: text/plain; charset="UTF-8" > > Thank you everybody, the issue has been corrected. > > > ------------------------------ > > Message: 2 > Date: Wed, 23 Aug 2017 10:57:29 -0400 > From: rich hurd WC3T <[hidden email]> > To: Dave W8FGU <[hidden email]> > Cc: Elecraft Reflector Reflector <[hidden email]> > Subject: Re: [Elecraft] BL2 Enclosure > Message-ID: > <[hidden email]> > Content-Type: text/plain; charset="UTF-8" > > Thanks for this; I was thinking of getting the BL2 but held off until I > could cobble together an enclosure. Since all that cobbling is now done, > I think this might be a good next purchase. :D > > > > --- > 73 (or 72 for the QRP folks), > Rich Hurd / WC3T > DMR ID: 3142737 > Northampton County RACES > EPA-ARRL Public Information Officer for Scouting > Latitude: 40.761621 Longitude: -75.288988 (40?45.68' N 75?17.33' W) Grid: > *FN20is* > > > On Wed, Aug 23, 2017 at 10:52 AM, Dave W8FGU <[hidden email]> wrote: > >> GM Jim, >> >> This is Dave W8FGU and yes, I'm still producing enclosures for Elecraft's >> mini module line. Much to my amazement, I'm seeing an increase in business >> in the last couple of years despite thinking that I saturated the market a >> number of years ago. This is a great tribute to Elecraft and the large >> number of hams who enjoy building kits and home brewing. >> >> Look at www.w8fgu.com and you can browse the various enclosures I make >> including the BL2. >> >> Thanks all for the shameless plug ;-) >> >> 73, >> Dave W8FGU >> >> >> >> On August 23, 2017 00:14:03 James Bennett <[hidden email]> wrote: >> >> Just completed the assembly of the Elecraft BL2 balun. Nice unit, but I'm >>> a tad disappointed that there is no enclosure for it, optional or included. >>> Since there are exposed electronic connections on it, and because I'll be >>> connecting it to 450-ohm ladder line that handles line barbed wire, I hate >>> just having the BL2 flopping around. >>> >>> A buddy of mine mentioned that he thought at one time there was someone >>> on this reflector who was offering an enclosure for the BL2. Does anyone >>> here have information on such an item? Or, has anyone here with a 3D >>> printer attempted building one? >>> >>> Thx, >>> >>> Jim Bennett / W6JHB >>> Folsom, CA >>> ______________________________________________________________ >>> Elecraft mailing list >>> Home: http://mailman.qth.net/mailman/listinfo/elecraft >>> Help: http://mailman.qth.net/mmfaq.htm >>> Post: mailto:[hidden email] >>> >>> This list hosted by: http://www.qsl.net >>> Please help support this email list: http://www.qsl.net/donate.html >>> Message delivered to [hidden email] >>> >> >> >> ______________________________________________________________ >> Elecraft mailing list >> Home: http://mailman.qth.net/mailman/listinfo/elecraft >> Help: http://mailman.qth.net/mmfaq.htm >> Post: mailto:[hidden email] >> >> This list hosted by: http://www.qsl.net >> Please help support this email list: http://www.qsl.net/donate.html >> Message delivered to [hidden email] >> > > > ------------------------------ > > Message: 3 > Date: Wed, 23 Aug 2017 08:21:35 -0700 > From: Brendon Whateley <[hidden email]> > To: [hidden email] > Cc: Aaron K5ATG <[hidden email]>, Elecraft Reflector Reflector > <[hidden email]> > Subject: Re: [Elecraft] BNC Connector on KXe > Message-ID: > <[hidden email]> > Content-Type: text/plain; charset="UTF-8" > > If it is a recurring problem, why not put a drop of Loctite (probably 242 > which is non-permanent) on the thread. That should solve the problem. > > - Brendon > KK6AYI > > On Tue, Aug 22, 2017 at 2:36 PM, Don Wilhelm <[hidden email]> wrote: > >> Aaron, >> >> The most likely cause is that the nut on the BNC jack has worked loose. It >> should be easy to tighten, although you will likely have to remove the 2 >> meter option (if you have it) and the KXAT3. >> See page 25 of the KX3 Assembly Manual. >> Use a wrench to tighten the nut, and while tightening the nut, put a BNC >> connector on the outside of the jack and hold it with pliers so you can >> torque the nut tight without damaging the BNC jack. >> >> 73, >> Don W3FPR >> >> >> On 8/22/2017 9:54 AM, Aaron K5ATG wrote: >> >>> The BNC Connector on my KX3 has become loose, is there a way to repair it? >>> >> ______________________________________________________________ >> Elecraft mailing list >> Home: http://mailman.qth.net/mailman/listinfo/elecraft >> Help: http://mailman.qth.net/mmfaq.htm >> Post: mailto:[hidden email] >> >> This list hosted by: http://www.qsl.net >> Please help support this email list: http://www.qsl.net/donate.html >> Message delivered to [hidden email] >> > > > ------------------------------ > > Message: 4 > Date: Wed, 23 Aug 2017 17:24:01 +0000 (UTC) > From: "P.J.Hicks" <[hidden email]> > To: ELECRAFT <[hidden email]> > Subject: [Elecraft] Noise Reduction > Message-ID: > <[hidden email]> > Content-Type: text/plain; charset=utf-8 > > I have been involved with a project developed by Peter Rhodes of the UK that started as a way to improve the NR in his Pick a Star trx. It appears that the project is nearing the limits of what can be done and will hopefully go public soon. The project is called nitPic and operates on the audio output (phones) under Peter's software. It is truly amazing what it can do. Briefly it has two modes, SSB and CW. It processes the audio in 'bins' or slices. As each bin is processed the SW decides if it is signal or noise; if signal it is enhanced and if noise it is reduced. Sounds simple. It almost completely eliminates a CW signal if in SSB mode and vice versa eliminates a SSB signal if in CW mode. I have been able to bring out CW signals from the noise floor that do not show the slightest trace on my PowerSDR waterfall/spectrum display. > > So good things are happening and improvements are in the works. > > PJH, N7PXY > > > ------------------------------ > > Message: 5 > Date: Wed, 23 Aug 2017 10:38:57 -0700 (MST) > From: N4KS <[hidden email]> > To: [hidden email] > Subject: [Elecraft] WTB KAT-100 > Message-ID: <[hidden email]> > Content-Type: text/plain; charset=us-ascii > > WTB KAT-100 external antenna tuner for K2/100. I'm good on QRZ.com. > > > > > ----- > Ken N4KS > -- > View this message in context: http://elecraft.365791.n2.nabble.com/WTB-KAT-100-tp7633700.html > Sent from the Elecraft mailing list archive at Nabble.com. > > > ------------------------------ > > Message: 6 > Date: Wed, 23 Aug 2017 10:45:16 -0700 > From: Phil Kane <[hidden email]> > To: [hidden email] > Subject: Re: [Elecraft] BNC Connector on KX3 > Message-ID: <[hidden email]> > Content-Type: text/plain; charset=utf-8 > > On 8/23/2017 5:56 AM, geoffrey allsup wrote: > >> I noticed this issue when I first assembled my KX3. The simple cure >> for me after tightening the BNC a couple of times early on was to use >> a right-angle BNC adapter all the time. No more problems, and the >> coax conveniently pays off to the rear of the rig :-) > > I use that trick on all the BNC fittings on the preamps, filters, and > multicouplers in my receiving signal distribution system mounted on a > vertical backboard. Makes connection much easier. > > 73 de K2ASP - Phil Kane > Elecraft K2/100 s/n 5402 > >> From a Clearing in the Silicon Forest > Beaverton (Washington County) Oregon > > > ------------------------------ > > Message: 7 > Date: Wed, 23 Aug 2017 10:03:58 -0800 > From: Edward R Cole <[hidden email]> > To: Elecraft Reflector <[hidden email]> > Subject: Re: [Elecraft] [KX3] Band Plans > Message-ID: <[hidden email]> > Content-Type: text/plain; charset="us-ascii"; format=flowed > > To all who cite how their state police use low-band VHF (30-50 MHz). > > Yes, I've heard that touted for years (decades), yet the Alaska > Troopers (state police) use high-band VHF (150-175 MHz). Their > car-to-car simplex is 155.250 MHz. Only state utility that uses > low-band (47-MHz) is the AK DOT. I personally know that they > installed a base station in the home of a worker (his wife was > KL7UP-sk) perched on a hill overlooking Turnagain arm to provide a > link from Anchorage (about 25-miles) to a hwy maint camp 16-miles > further up a mountain valley. They now have a hwy repeater near the > maint camp others along the Seward Hwy which probably provides hwy > coverage. The Seward Hwy+Sterling Hwy "are" the"I-5" of Alaska (not > to mean its a freeway - its mostly 2-lane 55mph hwy - but see's > highest traffic use in AK). > > So all I can say about 6m prop from Kenai to Anchorage: low rolling > hills and over water is that higher frequencies (222) propagate > better (1991- to date experience). > > Now I return the reflector to normal "Elecraft oriented" use. > > 73, Ed - KL7UW > http://www.kl7uw.com > Dubus-NA Business mail: > [hidden email] > > > > ------------------------------ > > Message: 8 > Date: Wed, 23 Aug 2017 15:14:20 -0400 > From: Kevin der Kinderen <[hidden email]> > To: "P.J.Hicks" <[hidden email]> > Cc: ELECRAFT <[hidden email]> > Subject: Re: [Elecraft] Noise Reduction > Message-ID: > <[hidden email]> > Content-Type: text/plain; charset="UTF-8" > > I'd love to hear some A/B audio samples of nitPic if they become available. > It operates at AF? Operates well in congested bands? > > I've always been told that by the time the signal is demodulated to AF the > damage is done. Why I believe this I have no clue. So when I hear something > about noise reduction or filtering on AF it always makes me think of > howling CW and scratchy voice. The best filter I used at audio was the old > Autek QF-1A. Boy could I get that howling! I think I need to catch up and > learn new old ham tales. > > 73, > Kev K4VD > > On Wed, Aug 23, 2017 at 1:24 PM, P.J.Hicks <[hidden email]> wrote: > >> I have been involved with a project developed by Peter Rhodes of the UK >> that started as a way to improve the NR in his Pick a Star trx. It appears >> that the project is nearing the limits of what can be done and will >> hopefully go public soon. The project is called nitPic and operates on the >> audio output (phones) under Peter's software. It is truly amazing what it >> can do. Briefly it has two modes, SSB and CW. It processes the audio in >> 'bins' or slices. As each bin is processed the SW decides if it is signal >> or noise; if signal it is enhanced and if noise it is reduced. Sounds >> simple. It almost completely eliminates a CW signal if in SSB mode and vice >> versa eliminates a SSB signal if in CW mode. I have been able to bring out >> CW signals from the noise floor that do not show the slightest trace on my >> PowerSDR waterfall/spectrum display. >> >> So good things are happening and improvements are in the works. >> >> PJH, N7PXY >> ______________________________________________________________ >> Elecraft mailing list >> Home: http://mailman.qth.net/mailman/listinfo/elecraft >> Help: http://mailman.qth.net/mmfaq.htm >> Post: mailto:[hidden email] >> >> This list hosted by: http://www.qsl.net >> Please help support this email list: http://www.qsl.net/donate.html >> Message delivered to [hidden email] >> > > > ------------------------------ > > Message: 9 > Date: Wed, 23 Aug 2017 12:32:41 -0700 > From: Phil Hystad <[hidden email]> > To: Elecraft <[hidden email]> > Subject: [Elecraft] Surprising Behavior on KX3 KXPA100 Combo > Message-ID: <[hidden email]> > Content-Type: text/plain; charset=utf-8 > > I have configured my KX3 with my KXPA100 (previously used only with KX2) following all instructions (I think) in the KXPA100 user manual. > > First comment ? everything works, antenna tuner on KXPA100 works, power out 100 watts on all bands, and so on. > > Weird stuff: > > 1. I Held Keyer/Mic/PWR button for power display, showing 100 watts. Then, I immediately pushed Band+ to switch up to next band. No band switching too place but the display changed from 100 watts on KX3 back to the clock. Pressing Band+ once more results in band switching as expected. This happens every time in the sequence I describe and I am wondering if (a) this is normal, (b) something is not yet configured correctly. > > > 2. My reason for Hold on Keyer/Mic/PWR to display power is because after switching bands and after tuning the antenna for a low SWR (about 1.1:1) the power output was only about 10 watts. I did a Hold on Keyer/Mic/PWR to see the power output and it was indeed 100 watts and not 10. I then keyed down and then the output was 100 watts. This does not seem normal to me. > > None of these two behaviors occurred on my KX2. > > Any ideas or comments? > > 73, phil, K7PEH > > > > ------------------------------ > > Message: 10 > Date: Wed, 23 Aug 2017 13:22:55 -0700 > From: Wes Stewart <[hidden email]> > To: Elecraft Reflector <[hidden email]> > Cc: Tower Talk <[hidden email]> > Subject: [Elecraft] Ecoflex cable > Message-ID: <[hidden email]> > Content-Type: text/plain; charset=utf-8; format=flowed > > About three years ago I purchased some Ecoflex-10 cable assemblies from > Vibroplex. These had what seemed to be very nicely made PL-259 type connectors > preinstalled. (Getting lazy in my old age) It appears that Vibroplex no longer > sells these but other vendors do. > > This note is to report on the performance in the field so far. In addition to > the ones used as patch cords in the station, I installed one 60 foot length on > my Rohn fold-over tower from the base to the Yagi on top. The upper end was > used as a rotor loop, so it saw that flexing. > > Prior to installing this cable I performed characterization measurements using > my DG8SAQ vector network analyzer (http://sdr-kits.net/VNWA3_Description.html) > running the supplied software and post processing the s11 data with Zplots > (http://ac6la.com/zplots1.html). The VNWA was calibrated with SMA standards but > of course, measured with SMA-to-UHF adapters. No attempt was made at that time > to pick nits and subtract out adapter errors as they are pretty meaningless in > this application. Cited with ridiculous precision, the loss at 30 MHz was 0.438 dB. > > A few days ago I had need to fold over the tower for another purpose and decided > to remeasure this cable and see how it's fared after nearly three years exposure > in the Arizona desert. The present attenuation was 0.483 dB, which is > remarkably close, especially considering the uncertainties involved. I am quite > pleased and wouldn't hesitate to use this wherever flexing is an issue. I will > continue to use Heliax where it isn't. > > FWIW, > > Wes N7WS > > > > ------------------------------ > > Message: 11 > Date: Wed, 23 Aug 2017 13:38:57 -0700 (MST) > From: Bob N3MNT <[hidden email]> > To: [hidden email] > Subject: Re: [Elecraft] Surprising Behavior on KX3 KXPA100 Combo > Message-ID: <[hidden email]> > Content-Type: text/plain; charset=us-ascii > > If you are saying you switched bands with the amp still transmitting, that > would probably cause what you are seeing. There is a short delay after > switching bands to switch in the new tuner settings. You should give the amp > time to complete the changes before transmitting. > > > > > -- > View this message in context: http://elecraft.365791.n2.nabble.com/Surprising-Behavior-on-KX3-KXPA100-Combo-tp7633704p7633706.html > Sent from the Elecraft mailing list archive at Nabble.com. > > > ------------------------------ > > Message: 12 > Date: Wed, 23 Aug 2017 14:05:40 -0700 > From: Phil Hystad <[hidden email]> > To: Bob N3MNT <[hidden email]> > Cc: [hidden email] > Subject: Re: [Elecraft] Surprising Behavior on KX3 KXPA100 Combo > Message-ID: <[hidden email]> > Content-Type: text/plain; charset=us-ascii > > No, I certainly did not switch bands while transmitting. I don't think I said that. > > PEH's iPhone > >> On Aug 23, 2017, at 1:38 PM, Bob N3MNT <[hidden email]> wrote: >> >> If you are saying you switched bands with the amp still transmitting, that >> would probably cause what you are seeing. There is a short delay after >> switching bands to switch in the new tuner settings. You should give the amp >> time to complete the changes before transmitting. >> >> >> >> >> -- >> View this message in context: http://elecraft.365791.n2.nabble.com/Surprising-Behavior-on-KX3-KXPA100-Combo-tp7633704p7633706.html >> Sent from the Elecraft mailing list archive at Nabble.com. >> ______________________________________________________________ >> Elecraft mailing list >> Home: http://mailman.qth.net/mailman/listinfo/elecraft >> Help: http://mailman.qth.net/mmfaq.htm >> Post: mailto:[hidden email] >> >> This list hosted by: http://www.qsl.net >> Please help support this email list: http://www.qsl.net/donate.html >> Message delivered to [hidden email] > > > ------------------------------ > > Message: 13 > Date: Wed, 23 Aug 2017 19:03:45 -0300 > From: Mike Harris <[hidden email]> > To: [hidden email] > Subject: Re: [Elecraft] Ecoflex cable > Message-ID: <[hidden email]> > Content-Type: text/plain; charset=utf-8; format=flowed > > I installed Ecoflex 10 cable from the shack to the top of my tower in > 2008. A year or two ago it was mentioned and illustrated in the RSGB > "RadCom" magazine the potential problem of screen foil break up and > possible centre conductor migration through the foam dielectric in > sections of this type of cable at places of repeated flexing. > > My two runs of Ecoflex 10 terminate at the top of the tower with two > extension runs providing the a rotator loop and continuing onwards to > the HF and 6m beams on an eight foot mast above the top bearing. One run > was Ecoflex 10 the other was RG213 type. > > Recently I removed both extension cables for destructive inspection in > the area of the rotator loop. > > The copper foil screen of the Ecoflex 10 was seriously cracked, in some > places almost to the point of complete severance. The braid element of > the screen which is not particularly dense was OK. > > The RG213 type cable showed no sign of damage whatsoever. > > Naturally a rotator loop over a period of years takes a hammering and it > seems this sort of foam, braid, foil cable is not first choice for the job. > > Two replacement rotator loop runs of RG213 type cable have now been > installed from the top of the tower to the antennas. The extra loss of > these short lengths at HF and 6m are in my case insignificant given that > the full run length shack to antenna is approximately 160 feet. > > My only experience is with Ecoflex 10, cable from other manufacturers > may behave differently. > > Regards, > > Mike VP8NO > > On 23/08/2017 17:22, Wes Stewart wrote: >> About three years ago I purchased some Ecoflex-10 cable assemblies from >> Vibroplex. These had what seemed to be very nicely made PL-259 type >> connectors preinstalled. (Getting lazy in my old age) It appears that >> Vibroplex no longer sells these but other vendors do. >> >> This note is to report on the performance in the field so far. In >> addition to the ones used as patch cords in the station, I installed one >> 60 foot length on my Rohn fold-over tower from the base to the Yagi on >> top. The upper end was used as a rotor loop, so it saw that flexing. >> >> Prior to installing this cable I performed characterization measurements >> using my DG8SAQ vector network analyzer >> (http://sdr-kits.net/VNWA3_Description.html) running the supplied >> software and post processing the s11 data with Zplots >> (http://ac6la.com/zplots1.html). The VNWA was calibrated with SMA >> standards but of course, measured with SMA-to-UHF adapters. No attempt >> was made at that time to pick nits and subtract out adapter errors as >> they are pretty meaningless in this application. Cited with ridiculous >> precision, the loss at 30 MHz was 0.438 dB. >> >> A few days ago I had need to fold over the tower for another purpose and >> decided to remeasure this cable and see how it's fared after nearly >> three years exposure in the Arizona desert. The present attenuation was >> 0.483 dB, which is remarkably close, especially considering the >> uncertainties involved. I am quite pleased and wouldn't hesitate to use >> this wherever flexing is an issue. I will continue to use Heliax where >> it isn't. >> >> FWIW, >> >> Wes N7WS > > > ------------------------------ > > Message: 14 > Date: Wed, 23 Aug 2017 17:34:54 -0500 > From: K5MWR <[hidden email]> > To: [hidden email] > Subject: [Elecraft] Question about K3s and Drake L7B combo > Message-ID: <[hidden email]> > Content-Type: text/plain; charset=utf-8; format=flowed > > I am about to pair up a Drake L7B with my K3s and just wanted to tap the > groups wisdom on any issues. > > If you are running this combination would appreciate any advice from > your experience. > > Thanks > Dave K5MWR > > > > ------------------------------ > > Message: 15 > Date: Wed, 23 Aug 2017 18:01:49 -0500 > From: Scott <[hidden email]> > To: [hidden email] > Subject: Re: [Elecraft] Noise Reduction > Message-ID: <[hidden email]> > Content-Type: text/plain; charset=utf-8; format=flowed > > Is there a website or software repository yet? > > Scott > AD5HS > > On 8/23/2017 12:24 PM, P.J.Hicks wrote: >> I have been involved with a project developed by Peter Rhodes of the UK that started as a way to improve the NR in his Pick a Star trx. It appears that the project is nearing the limits of what can be done and will hopefully go public soon. The project is called nitPic and operates on the audio output (phones) under Peter's software. It is truly amazing what it can do. Briefly it has two modes, SSB and CW. It processes the audio in 'bins' or slices. As each bin is processed the SW decides if it is signal or noise; if signal it is enhanced and if noise it is reduced. Sounds simple. It almost completely eliminates a CW signal if in SSB mode and vice versa eliminates a SSB signal if in CW mode. I have been able to bring out CW signals from the noise floor that do not show the slightest trace on my PowerSDR waterfall/spectrum display. >> >> So good things are happening and improvements are in the works. >> >> PJH, N7PXY >> ______________________________________________________________ >> Elecraft mailing list >> Home: http://mailman.qth.net/mailman/listinfo/elecraft >> Help: http://mailman.qth.net/mmfaq.htm >> Post: mailto:[hidden email] >> >> This list hosted by: http://www.qsl.net >> Please help support this email list: http://www.qsl.net/donate.html >> Message delivered to [hidden email] >> > > > ------------------------------ > > Message: 16 > Date: Wed, 23 Aug 2017 16:01:56 -0700 > From: Phil Hystad <[hidden email]> > To: Elecraft <[hidden email]> > Subject: Re: [Elecraft] Surprising Behavior on KX3 KXPA100 Combo > Message-ID: <[hidden email]> > Content-Type: text/plain; charset=utf-8 > > My own answer to my first weird thing in message below: > > Apparently, if you press/HOLD the Keyer/Mic/PWR button to display the power level, it takes another key press to revert from that action. It was not merely the band switch that would not function but any key press had the same result ? which was, that function key did not operate other than to revert the PWR display back to whatever was displayed prior to the press/HOLD on the ../PWR button. > > I assume that this might be normal behavior, possibly thinking that most people would depress the same ../PWR button again to move out of that state. > > ALSO, clarification on the second weird thing: > > To reproduce this behavior of the power output shown one green light on the power LED display of the KXPA100, do the following: > > Seems to work this way because I have two antennas, one for 80 thru 30 and the other for 20 thru 10. So, > > ?> Switch antennas (either Ant 1 to 2 or Ant 2 to 1) > ?> Tune using the ATU Tune button. > ?> key down once (I send a dash using my paddle) > ?> result is only one green LED light lit up on Power LED Display of KXPA100. > ?> key down again, same thing, without needing any other button pushes and normal > display of 100 watts is shown on KXPA100 power LED lights. > > 73, phil, K7PEH > > >> On Aug 23, 2017, at 12:32 PM, Phil Hystad <[hidden email]> wrote: >> >> I have configured my KX3 with my KXPA100 (previously used only with KX2) following all instructions (I think) in the KXPA100 user manual. >> >> First comment ? everything works, antenna tuner on KXPA100 works, power out 100 watts on all bands, and so on. >> >> Weird stuff: >> >> 1. I Held Keyer/Mic/PWR button for power display, showing 100 watts. Then, I immediately pushed Band+ to switch up to next band. No band switching too place but the display changed from 100 watts on KX3 back to the clock. Pressing Band+ once more results in band switching as expected. This happens every time in the sequence I describe and I am wondering if (a) this is normal, (b) something is not yet configured correctly. >> >> >> 2. My reason for Hold on Keyer/Mic/PWR to display power is because after switching bands and after tuning the antenna for a low SWR (about 1.1:1) the power output was only about 10 watts. I did a Hold on Keyer/Mic/PWR to see the power output and it was indeed 100 watts and not 10. I then keyed down and then the output was 100 watts. This does not seem normal to me. >> >> None of these two behaviors occurred on my KX2. >> >> Any ideas or comments? >> >> 73, phil, K7PEH >> >> ______________________________________________________________ >> Elecraft mailing list >> Home: http://mailman.qth.net/mailman/listinfo/elecraft >> Help: http://mailman.qth.net/mmfaq.htm >> Post: mailto:[hidden email] >> >> This list hosted by: http://www.qsl.net >> Please help support this email list: http://www.qsl.net/donate.html >> Message delivered to [hidden email] > > > > ------------------------------ > > Message: 17 > Date: Wed, 23 Aug 2017 16:06:44 -0700 > From: Walter Underwood <[hidden email]> > To: Elecraft <[hidden email]> > Subject: Re: [Elecraft] Noise Reduction > Message-ID: <[hidden email]> > Content-Type: text/plain; charset=us-ascii > > Discussion appears to be here. > > https://uk.groups.yahoo.com/neo/groups/SNR_group/info?v=1&t=directory&ch=web&pub=groups&sec=dir&slk=363 <https://uk.groups.yahoo.com/neo/groups/SNR_group/info?v=1&t=directory&ch=web&pub=groups&sec=dir&slk=363> > > wunder > K6WRU > Walter Underwood > CM87wj > http://observer.wunderwood.org/ (my blog) > >> On Aug 23, 2017, at 4:01 PM, Scott <[hidden email]> wrote: >> >> Is there a website or software repository yet? >> >> Scott >> AD5HS >> >> On 8/23/2017 12:24 PM, P.J.Hicks wrote: >>> I have been involved with a project developed by Peter Rhodes of the UK that started as a way to improve the NR in his Pick a Star trx. It appears that the project is nearing the limits of what can be done and will hopefully go public soon. The project is called nitPic and operates on the audio output (phones) under Peter's software. It is truly amazing what it can do. Briefly it has two modes, SSB and CW. It processes the audio in 'bins' or slices. As each bin is processed the SW decides if it is signal or noise; if signal it is enhanced and if noise it is reduced. Sounds simple. It almost completely eliminates a CW signal if in SSB mode and vice versa eliminates a SSB signal if in CW mode. I have been able to bring out CW signals from the noise floor that do not show the slightest trace on my PowerSDR waterfall/spectrum display. >>> So good things are happening and improvements are in the works. >>> PJH, N7PXY >>> ______________________________________________________________ >>> Elecraft mailing list >>> Home: http://mailman.qth.net/mailman/listinfo/elecraft >>> Help: http://mailman.qth.net/mmfaq.htm >>> Post: mailto:[hidden email] >>> This list hosted by: http://www.qsl.net >>> Please help support this email list: http://www.qsl.net/donate.html >>> Message delivered to [hidden email] >> ______________________________________________________________ >> Elecraft mailing list >> Home: http://mailman.qth.net/mailman/listinfo/elecraft >> Help: http://mailman.qth.net/mmfaq.htm >> Post: mailto:[hidden email] >> >> This list hosted by: http://www.qsl.net >> Please help support this email list: http://www.qsl.net/donate.html >> Message delivered to [hidden email] > > > > ------------------------------ > > Message: 18 > Date: Wed, 23 Aug 2017 16:58:58 -0700 > From: Fred Jensen <[hidden email]> > To: [hidden email] > Subject: Re: [Elecraft] Noise Reduction > Message-ID: <[hidden email]> > Content-Type: text/plain; charset=utf-8; format=flowed > > Doesn't appear to say very much.? Other than the BW difference [RF/IF BW > might be more than ultimate AF BW], and provided that the demodulated > audio is free of IMD and other obnoxious distortion, I don't see why NR > at AF wouldn't be essentially the same as at IF.? Obvious differences in > the mechanisms to do it, and I'm sure there are dozens of nits that will > be picked over this, but if you can find the signal in the noise [or the > noise obscuring the signal] at the IF frequency, I can't see any reason > why you can't do it at AF just as well. > > 73, > > Fred ["Skip"] K6DGW > Sparks NV DM09dn > Washoe County > > On 8/23/2017 4:06 PM, Walter Underwood wrote: >> Discussion appears to be here. >> >> https://uk.groups.yahoo.com/neo/groups/SNR_group/info?v=1&t=directory&ch=web&pub=groups&sec=dir&slk=363 <https://uk.groups.yahoo.com/neo/groups/SNR_group/info?v=1&t=directory&ch=web&pub=groups&sec=dir&slk=363> >> >> wunder >> K6WRU >> Walter Underwood >> CM87wj >> http://observer.wunderwood.org/ (my blog) > > > > ------------------------------ > > Message: 19 > Date: Wed, 23 Aug 2017 20:20:01 -0400 > From: Kevin der Kinderen <[hidden email]> > To: Fred Jensen <[hidden email]> > Cc: Elecraft Reflector Reflector <[hidden email]> > Subject: Re: [Elecraft] Noise Reduction > Message-ID: > <[hidden email]> > Content-Type: text/plain; charset="UTF-8" > > Maybe the additional noise in the stages between where the filter would be > in IF and where it is in AF? I know I'm thinking of multi-stage RF/IF/AF > superhets and that might be what is tripping me up when it comes to a > single conversion SDR capability. Maybe there is no difference? Or maybe > components that make up a filter in an IF stage are more effective (higher > Q) than in an audio stage? > > 73, > Kev K4VD > > On Wed, Aug 23, 2017 at 7:58 PM, Fred Jensen <[hidden email]> wrote: > >> Doesn't appear to say very much. Other than the BW difference [RF/IF BW >> might be more than ultimate AF BW], and provided that the demodulated audio >> is free of IMD and other obnoxious distortion, I don't see why NR at AF >> wouldn't be essentially the same as at IF. Obvious differences in the >> mechanisms to do it, and I'm sure there are dozens of nits that will be >> picked over this, but if you can find the signal in the noise [or the noise >> obscuring the signal] at the IF frequency, I can't see any reason why you >> can't do it at AF just as well. >> >> 73, >> >> Fred ["Skip"] K6DGW >> Sparks NV DM09dn >> Washoe County >> >> On 8/23/2017 4:06 PM, Walter Underwood wrote: >> >>> Discussion appears to be here. >>> >>> https://uk.groups.yahoo.com/neo/groups/SNR_group/info?v=1&t= >>> directory&ch=web&pub=groups&sec=dir&slk=363 < >>> https://uk.groups.yahoo.com/neo/groups/SNR_group/info?v=1&t >>> =directory&ch=web&pub=groups&sec=dir&slk=363> >>> >>> wunder >>> K6WRU >>> Walter Underwood >>> CM87wj >>> http://observer.wunderwood.org/ (my blog) >>> >> >> ______________________________________________________________ >> Elecraft mailing list >> Home: http://mailman.qth.net/mailman/listinfo/elecraft >> Help: http://mailman.qth.net/mmfaq.htm >> Post: mailto:[hidden email] >> >> This list hosted by: http://www.qsl.net >> Please help support this email list: http://www.qsl.net/donate.html >> Message delivered to [hidden email] >> > > > ------------------------------ > > Message: 20 > Date: Wed, 23 Aug 2017 17:44:15 -0700 > From: Todd <[hidden email]> > To: [hidden email] > Cc: [hidden email] > Subject: Re: [Elecraft] [KX3] Band Plans > Message-ID: <[hidden email]> > Content-Type: text/plain; charset=ISO-8859-1; format=flowed > > CHP has totally upgraded their system. They use 39,42,44, and 45MHZ > inputs/outputs. > Most dispatch comm centers, but not up here in extreme NorCal, repeat > the mobiles on > the main base dispatch channel. Makes it easier to listen to both sides. > > They run their extenders in the 700MHZ range using P25 digital. They > were supposed > to upgrade the whole system to a statewide 700MHZ P25 digital system > covering > the whole state. But, no money $$$. Imagine that! > > No more extenders on the old 154.905 freq (was a poor man's radar radar > detector!) ;-) > > When I hear statewide CHP comms, or other state low band Highway > Patrol, I know > that something is happening on six... > > Todd KH2TJ > > > Phil Kane wrote: >> On 8/22/2017 2:14 PM, Walter Underwood wrote: >> >> >>> The California Highway Patrol holds on to their 47 MHz frequencies for the same reason. >>> >> >> 42 MHz. Augmented by a whole system of VHF and UHF portables working >> through in-car repeaters into and out of the 42 MHz network. >> >> > > > ------------------------------ > > Message: 21 > Date: Wed, 23 Aug 2017 20:02:45 -0500 > From: K9MA <[hidden email]> > To: [hidden email] > Subject: Re: [Elecraft] Noise Reduction > Message-ID: <[hidden email]> > Content-Type: text/plain; charset=utf-8; format=flowed > > Impulse noise gets stretched out in time when passed through a narrow > filter, so it must be removed ahead of the narrow filter. This is true > whether in hardware or software. Since this is a very common type of > man-made noise, effectively removing or reducing it would be very > useful. I can't see how this could possibly be done in the audio > range. It could, perhaps, at baseband in a direct sampling receiver. > > In any case, a future Elecraft radio which could effectively reduce > impulse noise when a band is full of strong signals would be very > attractive, especially to urban hams. One scheme used long ago was to > use a second receiver, tuned a bit out of the band to a relatively clear > segment, to control a noise blanker in the main receiver. Could > Elecraft possibly add a mode to use the sub-receiver in this manner? > Or, because the noise-sensing receiver doesn't have to have great > selectivity, perhaps a dedicated receiver could be offered. > > 73, > > Scott K9MA > > > On 8/23/2017 19:20, Kevin der Kinderen wrote: >> Maybe the additional noise in the stages between where the filter would be >> in IF and where it is in AF? I know I'm thinking of multi-stage RF/IF/AF >> superhets and that might be what is tripping me up when it comes to a >> single conversion SDR capability. Maybe there is no difference? Or maybe >> components that make up a filter in an IF stage are more effective (higher >> Q) than in an audio stage? >> >> 73, >> Kev K4VD >> >> On Wed, Aug 23, 2017 at 7:58 PM, Fred Jensen <[hidden email]> wrote: >> >>> Doesn't appear to say very much. Other than the BW difference [RF/IF BW >>> might be more than ultimate AF BW], and provided that the demodulated audio >>> is free of IMD and other obnoxious distortion, I don't see why NR at AF >>> wouldn't be essentially the same as at IF. Obvious differences in the >>> mechanisms to do it, and I'm sure there are dozens of nits that will be >>> picked over this, but if you can find the signal in the noise [or the noise >>> obscuring the signal] at the IF frequency, I can't see any reason why you >>> can't do it at AF just as well. >>> >>> 73, >>> >>> Fred ["Skip"] K6DGW >>> Sparks NV DM09dn >>> Washoe County >>> >>> On 8/23/2017 4:06 PM, Walter Underwood wrote: >>> >>>> Discussion appears to be here. >>>> >>>> https://uk.groups.yahoo.com/neo/groups/SNR_group/info?v=1&t= >>>> directory&ch=web&pub=groups&sec=dir&slk=363 < >>>> https://uk.groups.yahoo.com/neo/groups/SNR_group/info?v=1&t >>>> =directory&ch=web&pub=groups&sec=dir&slk=363> >>>> >>>> wunder >>>> K6WRU >>>> Walter Underwood >>>> CM87wj >>>> http://observer.wunderwood.org/ (my blog) >>>> >>> ______________________________________________________________ >>> Elecraft mailing list >>> Home: http://mailman.qth.net/mailman/listinfo/elecraft >>> Help: http://mailman.qth.net/mmfaq.htm >>> Post: mailto:[hidden email] >>> >>> This list hosted by: http://www.qsl.net >>> Please help support this email list: http://www.qsl.net/donate.html >>> Message delivered to [hidden email] >>> >> ______________________________________________________________ >> Elecraft mailing list >> Home: http://mailman.qth.net/mailman/listinfo/elecraft >> Help: http://mailman.qth.net/mmfaq.htm >> Post: mailto:[hidden email] >> >> This list hosted by: http://www.qsl.net >> Please help support this email list: http://www.qsl.net/donate.html >> Message delivered to [hidden email] > > > -- > Scott K9MA > > [hidden email] > > > > ------------------------------ > > Message: 22 > Date: Wed, 23 Aug 2017 18:46:48 -0700 > From: Phil Kane <[hidden email]> > To: Todd <[hidden email]>, [hidden email] > Cc: [hidden email] > Subject: Re: [Elecraft] [KX3] Band Plans > Message-ID: <[hidden email]> > Content-Type: text/plain; charset=utf-8 > > On 8/23/2017 5:44 PM, Todd wrote: > >> When I hear statewide CHP comms, or other state low band Highway >> Patrol,? I know that something is happening on six... > > In 1959 at the peak of the sunspot cycle, the Los Angeles Sheriff's > Department main dispatch was co-channel with the NYPD dispatch channel > for the Brooklyn Borough Command (39.58 IIRC). At the time I was a > reserve deputy with the LASO and we would generally hear the NYPD calls > in the daytime. I had no problem with that because I grew up in > Brooklyn and recognized both the accent and the street names! > > At the time I was still a Tech and had no HF privileges and of course > Elecraft was not in existence. Six meters was not in general use in both > the LA and the NY areas because TV Channel 2 was in use locally (CBS O&O). > > 73 de K2ASP - Phil Kane > Elecraft K2/100 s/n 5402 > >> From a Clearing in the Silicon Forest > Beaverton (Washington County) Oregon > > > ------------------------------ > > Message: 23 > Date: Wed, 23 Aug 2017 19:55:46 -0600 > From: Ken G Kopp <[hidden email]> > To: [hidden email], Elecraft <[hidden email]> > Subject: [Elecraft] OT: [KX3] Band Plans > Message-ID: > <[hidden email]> > Content-Type: text/plain; charset="UTF-8" > > Years ago the local law enforcement used 34.980 (simplex) and of course was > often plagued by "skip" from other areas. There was no CTCSS then and > their solution was to change the 10 code to 9 code. 10-8 became 9-8, etc. > > 73 > > K0PP > > On Aug 23, 2017 19:47, "Phil Kane" <[hidden email]> wrote: > > On 8/23/2017 5:44 PM, Todd wrote: > >> When I hear statewide CHP comms, or other state low band Highway >> Patrol, I know that something is happening on six... > > In 1959 at the peak of the sunspot cycle, the Los Angeles Sheriff's > Department main dispatch was co-channel with the NYPD dispatch channel > for the Brooklyn Borough Command (39.58 IIRC). At the time I was a > reserve deputy with the LASO and we would generally hear the NYPD calls > in the daytime. I had no problem with that because I grew up in > Brooklyn and recognized both the accent and the street names! > > At the time I was still a Tech and had no HF privileges and of course > Elecraft was not in existence. Six meters was not in general use in both > the LA and the NY areas because TV Channel 2 was in use locally (CBS O&O). > > 73 de K2ASP - Phil Kane > Elecraft K2/100 s/n 5402 > >> From a Clearing in the Silicon Forest > Beaverton (Washington County) Oregon > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:[hidden email] > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to [hidden email] > > > ------------------------------ > > Message: 24 > Date: Wed, 23 Aug 2017 19:01:20 -0700 > From: Phil Kane <[hidden email]> > To: [hidden email] > Subject: Re: [Elecraft] [KX3] Band Plans > Message-ID: <[hidden email]> > Content-Type: text/plain; charset=utf-8 > > On 8/23/2017 5:44 PM, Todd wrote: > >> CHP has totally upgraded their system.? They use 39,42,44, and 45MHZ >> inputs/outputs. > > For decades, FCC Rules precluded Low-VHF in-band repeaters so the bases > are licensed as FB ("Fixed Base") rather than FB2 ("Mobile Relay"). A > difference without a distinction. > > 73 de K2ASP - Phil Kane > Elecraft K2/100 s/n 5402 > >> From a Clearing in the Silicon Forest > Beaverton (Washington County) Oregon > > > ------------------------------ > > Message: 25 > Date: Wed, 23 Aug 2017 23:06:24 -0400 > From: "Charlie T, K3ICH" <[hidden email]> > To: <[hidden email]> > Subject: Re: [Elecraft] [KX3] Band Plans > Message-ID: <005d01d31c85$fe15dc70$fa419550$@erols.com> > Content-Type: text/plain; charset="UTF-8" > > Is Russian TV still on 48 or so MHz.? They've probably also gone digital. > I remember listening for that TV picture buzz as an indicator that the MUF was creeping up. > > 73, Charlie k3ICH > > -----Original Message----- > From: [hidden email] [mailto:[hidden email]] On Behalf Of Phil Kane > Sent: Wednesday, August 23, 2017 9:47 PM > To: Todd <[hidden email]>; [hidden email] > Cc: [hidden email] > Subject: Re: [Elecraft] [KX3] Band Plans > > On 8/23/2017 5:44 PM, Todd wrote: > >> When I hear statewide CHP comms, or other state low band Highway >> Patrol, I know that something is happening on six... > > In 1959 at the peak of the sunspot cycle, the Los Angeles Sheriff's Department main dispatch was co-channel with the NYPD dispatch channel for the Brooklyn Borough Command (39.58 IIRC). At the time I was a reserve deputy with the LASO and we would generally hear the NYPD calls in the daytime. I had no problem with that because I grew up in Brooklyn and recognized both the accent and the street names! > > At the time I was still a Tech and had no HF privileges and of course Elecraft was not in existence. Six meters was not in general use in both the LA and the NY areas because TV Channel 2 was in use locally (CBS O&O). > > 73 de K2ASP - Phil Kane > Elecraft K2/100 s/n 5402 > >> From a Clearing in the Silicon Forest > Beaverton (Washington County) Oregon > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:[hidden email] > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html Message delivered to [hidden email] > > > > ------------------------------ > > Message: 26 > Date: Wed, 23 Aug 2017 21:44:56 -0600 > From: Sid Frissell <[hidden email]> > To: [hidden email] > Subject: [Elecraft] Power source for KAT500 > Message-ID: <[hidden email]> > Content-Type: text/plain; charset=us-ascii > > Just got my new KAT/KPA500 on the August Special. I have both units all wired, tested and ready to go except for the 12 to 15 VDC power connection for the KAT500. What are you experienced KAT/KPA owners using for this power source? What amperage is required? Advice would be appreciated, please. > > Sid. NZ7M > > Sent From Sid Frissell's iPad > > ------------------------------ > > _______________________________________________ > Elecraft mailing list > Post to: [hidden email] > http://mailman.qth.net/mailman/listinfo/elecraft > You must be a subscriber to post. > Elecraft web page: http://www.elecraft.com > > End of Elecraft Digest, Vol 160, Issue 32 > ***************************************** ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [hidden email] |
Re: Elecraft Digest, Vol 160, Issue 32
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Guys - Please do not copy the complete digest in your replies. That's way too
much email overload for other readers. And yes, please -do- change the subject line from Digest.. to match what you are replying to. 73, Eric Moderator from time to time.. /elecraft.com/ ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [hidden email] |
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