Re: [Elecraft] KX3 2M transverter
Yes, Steve, all modes supported by the KX3 are usable on all bands, including those using either internal or external transverters. I am using my KX3 now primarily as the I/f for my 10GHz rig and have used it on multiple modes including CW, SSB, FM, AM, and digital. Chris Cox, N0UK chr...@chris.org https://www.credly.com/go/IR77aRbH2rFDdOiymuxu2w > On Dec 28, 2023, at 12:01, Steve McKee wrote: > > Is it possible to transmit on 2M in the SSB or AM modes?? > Couldn’t see an option for those except FM. > > KE0RSI > null > __ > 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 chr...@chris.org __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] K3 & K3S Options Last Time Buy Update (12/02/2022)
I still haven’t received contact yet about the items I had ordered in April 2020 other than the original purchase confirmation. I had ordered both a new synthesizer upgrade and a general coverage bandpass filter. Could the delay in hearing anything be waiting on both kits to become available or should I have heard about the KSYN3A already? Chris Cox, N0UK chr...@chris.org https://www.credly.com/go/IR77aRbH2rFDdOiymuxu2w > On Feb 28, 2023, at 14:53, Pete Smith N4ZR wrote: > > Well, for what it's worth, I'm one of those waiting 2+years for an update > kit, and a week ago I got an e-mail from Elecraft telling me that it would be > shipping in 5-7 days. I don't know if some are ready but not others. I > reported this on this reflector at the time. > > 73, Pete N4ZR > > On 2/28/2023 3:11 PM, Lee Hiers wrote: >> On Thu, Feb 16, 2023 at 12:48 PM Wayne Burdick wrote: >> >> >>> Eric may want to elaborate. >>> >> Apparently not. >> >> Consider we're 12 weeks into a "6-8 weeks" window on some of these items. >> That's 4 to 6 weeks past due with no notice and almost two weeks after >> Wayne addressed it at all - in response to queries about why nothing has >> been said. >> >> Not to mention the ~2 year wait already endured. I know...Covid, supply >> chain, blah, blah. That does not absolve Elecraft of communicating with >> its customers. >> >> Lee, AA4GA >> __ >> 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 topete.n...@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 chr...@chris.org __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] Oh Crap
That looks interesting, Ken. I had not seen such a tool before. I’ll dig deeper and see if they make a version for 6.3mm plugs too. Chris Cox, N0UK chr...@chris.org https://www.credly.com/go/IR77aRbH2rFDdOiymuxu2w > On Jul 20, 2022, at 11:53, Ken Winterling wrote: > > How about this tool? I've used smaller versions to remove pins in connetors. > > AmazonSmile: Headphone Plug Extraction Tool- Remove Broken Headphone Plug > from Headphone Jack of Mobile Devices : Electronics > > Ken > WA2LBI > > > On Wed, Jul 20, 2022 at 12:38 PM Chris Cox, N0UK wrote: > I have suffered the very same failure but on my K3. Despite extensive > attempts on my part, removing the dislodged tip has proven futile and it > appears that the female jack will need to be replaced. Removing it might > help but it’s just too finicky for me. > > Chris Cox, N0UK > chr...@chris.org > https://www.credly.com/go/IR77aRbH2rFDdOiymuxu2w > > > > > On Jul 18, 2022, at 07:30, Douglas Speer wrote: > > > > I received my Ship Group 3 Elecraft K4; in the middle of an across country > > move. So it remained in the box until this past weekend. While setting up, > > in error I plugged my 1/4” tip/ring/ground paddle connector into the 1/4” > > KEY Jack on the back of the rig instead of the correct PADDLE jack. When I > > pulled the plug out of the KEY jack, the tip of the 1/4” plug broke off and > > is now lodged inside the KEY jack. > > > > It looks as if I will need to open the cabinet in order to extract the tip > > piece. I can’t find any online photos of an open K4. Looks as if I should > > open the top. Has anyone out there had the top cover off? Any advice or > > precautions I should be aware of? > > __ __ 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] Oh Crap
I have suffered the very same failure but on my K3. Despite extensive attempts on my part, removing the dislodged tip has proven futile and it appears that the female jack will need to be replaced. Removing it might help but it’s just too finicky for me. Chris Cox, N0UK chr...@chris.org https://www.credly.com/go/IR77aRbH2rFDdOiymuxu2w > On Jul 18, 2022, at 07:30, Douglas Speer wrote: > > I received my Ship Group 3 Elecraft K4; in the middle of an across country > move. So it remained in the box until this past weekend. While setting up, > in error I plugged my 1/4” tip/ring/ground paddle connector into the 1/4” KEY > Jack on the back of the rig instead of the correct PADDLE jack. When I pulled > the plug out of the KEY jack, the tip of the 1/4” plug broke off and is now > lodged inside the KEY jack. > > It looks as if I will need to open the cabinet in order to extract the tip > piece. I can’t find any online photos of an open K4. Looks as if I should > open the top. Has anyone out there had the top cover off? Any advice or > precautions I should be aware of? __ 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] Support email
I have emailed Elecraft Support twice this week but have received no reply or acknowledgement. Anyone know if they’re working this week? I was trying to validate that an RSA # that was issued mid-last year is still valid now that there is some reasonable ETA on the K3 option orders. I was hoping to combine the minor radio repair with installation and checkout of the two items that I had ordered. Chris Cox, N0UK chr...@chris.org https://www.credly.com/go/IR77aRbH2rFDdOiymuxu2w __ 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] Last round of K3 upgrades
I’ve heard nothing since sending in my order back in the early Spring. Nothing either on the KX3 TxInhiibit VOX bug reported to Elecraft in August last year. Chris Cox, N0UK chr...@chris.org > On Oct 1, 2021, at 10:50, Pete Smith N4ZR wrote: > > It's been more than a month since Elecraft's "last call" for these updates, > but I haven't seen anything to suggest when they might be available. Anything > from on high? > > -- > 73, Pete N4ZR > Check out the new Reverse Beacon Network > web server at <http://beta.reversebeacon.net>. > For spots, please use your favorite > "retail" DX cluster. > > __ > 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 chr...@chris.org __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] KX3 FW - N0UK tx inhibit & CW sidetone bug reproduced
Still hoping for some resolution to this problem since it’s now been a year since it was reported to and acknowledged by Elecraft as being a firmware bug. It really renders the KX3 as fairly useless as an I/F rig for microwave transverters if you need the TxInhibit function. Chris Cox, N0UK chr...@chris.org > On Oct 10, 2020, at 09:58, Drew Arnett wrote: > > I was able to reproduce the bug Chris, N0UK, reported with tx inhibit > and CW sidetone on the KX3. > > To be thorough, the FW as just installed by Elecraft, is uC 02.90 > anddsp 01.52which is the latest. > > I have cabling for the ACC2 port, as I use ring contact to PTT a > transverter and also to PTT a KXPA100. > > Menus have had minimal configuration post service from elecraft, just > enough to setup for transverter operation in the 10 GHz contest. Mode > is CW and VOX is on of course. > > ACC2 Inhibit = Low. I used a paddle on the KXPD paddle port (key 2). > Was able to get the stuck sidetone as you describe while sending dits > or sending dahs by. (Key 2 left = dot.) For kicks, changed to Key 2 > = hand. Found that if the key is released before inhibit is released, > the sidetone does not stick. The value of inhibit when the key is > initially asserted is not buggy. Saw the same behavior with menu > setting inhibit high. > > inhibit low > key - inhibit - inhibit release - key release --> sidetone stuck > key - inhibit - key release - inhibit release --> sidetone OK > inhibit - key - inhibit release - key release --> sidetone stuck > inhibit - key - key release - inhibit release --> sidetone OK > > inhibit high > key - inhibit - inhibit release - key release --> sidetone stuck > key - inhibit - key release - inhibit release --> sidetone OK > inhibit - key - inhibit release - key release --> sidetone stuck > inhibit - key - key release - inhibit release --> sidetone OK > > The behavior is a problem is in the firmware at the inhibit released event. > > A thorough bug report would also include observations of the PTT > output and actual RF output. > > Best regards, > > Drew > n7da > >> 6. Continuing saga with Tx Inhibit and the KX3 - possible >> firmware bug? (Chris Cox, N0UK) >> 16. KX3 Tx Inhibit CW-VOX problem (Chris Cox, N0UK) >> >> >> Message: 6 >> Date: Mon, 14 Sep 2020 16:14:57 -0500 >> From: "Chris Cox, N0UK" >> To: elecraft...@groups.io >> Cc: elecraft@mailman.qth.net >> Subject: [Elecraft] Continuing saga with Tx Inhibit and the KX3 - >>possiblefirmware bug? >> Message-ID: <583cb8e7-8618-4c4e-a630-8ccaacb9e...@chris.org> >> Content-Type: text/plain; charset=utf-8 >> >> Having solved the need for getting +Ve Tx Inhibit working on my KX3/10GHz >> Transverter integration using a mosfet switch to invert the signal and >> configured the KX3 for 0v Tx Inhibit, I had opportunity to test it out this >> afternoon. >> >> The solution seemed to work fine on SSB but I now have a weird issue when >> using the rig on CW. >> >> If I manually select transmit with the microphone PTT and then wait for the >> transverter sequencing to remove Tx Inhibit and then key CW with the >> paddles, the system works as desired. >> >> If I key the system using VOX, the Tx Inhibit functions correctly, fully >> disabling the transmitter from producing RF until TxInhibit is removed BUT >> the CW sidetone becomes permanently on from the moment TXInh disappears >> regardless of whether I am sending or not. It stays present until I press >> any of the buttons on the KX3. This happens regardless of which band is >> enabled, but occurs whenever TxInhibit is present. >> >> If I remove the TXInh fro the GPIO input (but leave the option enabled in >> the KX3 config) the rig operates normally. >> >> Can anyone else replicate this oddball behavior? It seems to be a firmware >> bug. I have tried removing power but that does not alter the effect. >> >> Again, all works just fine if I don?t try to key the paddles before PTT >> sequencing has changed over. >> >> Chris Cox, N0UK >> chr...@chris.org >> >> >> >> >> >> >> Message: 16 >> Date: Tue, 15 Sep 2020 08:10:31 -0500 >> From: "Chris Cox, N0UK" >> To: elecraft@mailman.qth.net >> Subject: [Elecraft] KX3 Tx Inhibit CW-VOX problem >> Message-ID: <66381756-c09a-4a99-8aa5-1e015b182...@chris.org> >> Content-Type: text/plain; charset=utf-8 >> >> Having solved the need for getting +Ve Tx Inhibit working
Re: [Elecraft] 6.3mm to 3.5mm adapter broke off inside the K3 paddle jack
Quick update on my broken plug problem. The suggestion to use a tap to remove the broken plug tip helped a little. It removed the plug ring and ring insulator, however, the tip of the plug is still trapped inside the 1/4” (6.3mm) socket. What’s more, now the ring contact of the socket has sprung back open by a millimetre or two and is now very effectively blocking the further extraction of the broken tip. Word of caution: don’t buy 6.3 to 3.5mm adapters from Amazon! So even if I can find a tool to engage with the tip, I think it rather unlikely that I will also be able to get a second tool into the opening to then depress the ring contact out of the way. Probably the easiest (note - didn’t say EASY!) option now is going to be to replace the actual paddle socket on the K3 RF board. In the meantime, at least the standard key jack is still functional and so I can use an external keyer or straight key to send code. Oh, what a palaver! Chris Cox, N0UK chr...@chris.org <mailto:chr...@chris.org> > On Feb 27, 2021, at 1:52 PM, Chris Cox, N0UK wrote: > > Thanks for that suggestion, Jim. > > Chris Cox, N0UK > chr...@chris.org > > > >> On Feb 26, 2021, at 11:31 PM, Jim Shepherd wrote: >> >> You can use a small screw tap like a 1-64 or 2-56 to carefully insert into >> the hole in the center of the broken off pin and gently turn it until it >> catches and you can gently pull out the pin. Used this to pull out broken >> jacks from speaker-mics on handhelds. >> 73 >> Jim W6US >> > \ __ 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] Subject: Waaay OT: A new kind of QRM to be aware of ... warning issued by FCC today
Spot on,Phil. Chris Cox, N0UK chr...@chris.org > On Jan 18, 2021, at 12:07 PM, Phil Kane wrote: > > On 1/18/2021 6:10 AM, Steve Hall wrote: > >> During my hamming of over 50 years, the FCC has never felt it necessary to >> threaten hams not to break the law, that is not until we have this new >> administration coming into control. My concern is what they will define in >> the future as criminal acts. > > That's because up to now it was unthinkable that licensed hams would use > amateur radio in the commission of crimes. The law and the enforcement > apparatus always was there, though, and was used without any publicity. We're > going through violent times now and it's sad that such a notice had to be > issued. Violators can't say that they weren't warned. > > 73 de K2ASP - Phil Kane > Elecraft K2/100 s/n 5402 > (30 year veteran of FCC Field Enforcement) > > __ > 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 chr...@chris.org __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] Mag Loop from MFJ
FWIW - I invested in an MFJ-1786 when we moved into our apartment 6 1/2 years ago. Since then, kit has been out on our 5th floor balcony in central Minneapolis year round, easily standing up to both Minnesotan Winters and Summers with aplomb. It has not ceased to work in that time and has netted me ~150 DXCC’s on all bands from 30 through 10 metres. Most of my work is CW by preference although I did break a pile-up a couple of years back to work VP8 on 20m SSB from an ATNO. To say I am pleased with its performance and capability may be understatement of the decade! I am absolutely gobsmacked at how well such a physically small antenna plays on HF and am willing to stand up for MFJ (at least in this particular case). YMMV, of course… Chris Cox, N0UK chr...@chris.org __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] K3 transverter connector question
Tuning on my K3 stops at exactly 30.000MHz. Chris Cox, N0UK chr...@chris.org > On Nov 13, 2020, at 8:08 AM, Chris Cox, N0UK wrote: > > Hi, Martin. > > Thank you - that is great to hear. I will give that a try and see. I didn’t > realize that I could actually tune above 30MHz directly, although I had not > even tried. > > VY 73! > > Chris Cox, N0UK > chr...@chris.org > > > >> On Nov 13, 2020, at 3:02 AM, Martin wrote: >> >> Chris, >> i'm using a 22MHz I/F for my 432MHz Transverter ( 102.5MHz *4 + 22=432MHz.) >> With the signal on 432, i transmit into a 13cm transverter for QO-100. I >> didn't change anything on my K3 other than buying the Transverter/RX-Antenna >> Board. So , no, it is not required to wideband the K3. >> OTOH, i found there is no 'general coverage' . The specifications drop when >> you move too far off and at a certain point, transmit fails. I suspect this >> also happens to the receive parameters, but you should give it a try. IIRC , >> it IS possible to tune above 30MHz, so you should try a I/F 28-32MHz with >> your 116MHz crystal and see how you get away. >> >> If you modify your transverter anyway , You may want to try a cheap >> solution: Buy a Si5351A Clock Breakout Board or similar. It can be >> programmed to output the frequency you need and i think is even more stable >> than the original crystal which drifts a lot. >> With a miniature computer like a arduino nano or attiny, you can build a >> clock source you can switch 116 / 118 Mhz . Or any other frequency. >> >> Am 13.11.20 um 09:05 schrieb elecraft-requ...@mailman.qth.net: >>> Message: 21 >>> Date: Thu, 12 Nov 2020 16:08:33 -0600 (CST) >>> From: Chris Cox >>> To:elecraft...@groups.io,elecraft@mailman.qth.net >>> Subject: [Elecraft] K3 transverter connector question >>> Message-ID: >>> Content-Type: text/plain; format=flowed; charset=US-ASCII >>> Good day. >>> I am considering recrystalling my 2m transverter with a 118MHz rock >>> replacing the existing 116MHz crystal, thereby permitting full two metre >>> band coverage with a 26-30MHz I/F. >>> Does the K3 need to be widebanded to enable low-level 26-28MHz RF on the >>> transverter transmit port or is the low-level output available by default? >>> -- Chris Cox, N0UK, G4JEC chr...@chris.org >> >> -- >> 73, Martin DM4iM >> __ >> 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 chr...@chris.org > > __ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft@mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to chr...@chris.org __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] K3 transverter connector question
Hi, Martin. Thank you - that is great to hear. I will give that a try and see. I didn’t realize that I could actually tune above 30MHz directly, although I had not even tried. VY 73! Chris Cox, N0UK chr...@chris.org > On Nov 13, 2020, at 3:02 AM, Martin wrote: > > Chris, > i'm using a 22MHz I/F for my 432MHz Transverter ( 102.5MHz *4 + 22=432MHz.) > With the signal on 432, i transmit into a 13cm transverter for QO-100. I > didn't change anything on my K3 other than buying the Transverter/RX-Antenna > Board. So , no, it is not required to wideband the K3. > OTOH, i found there is no 'general coverage' . The specifications drop when > you move too far off and at a certain point, transmit fails. I suspect this > also happens to the receive parameters, but you should give it a try. IIRC , > it IS possible to tune above 30MHz, so you should try a I/F 28-32MHz with > your 116MHz crystal and see how you get away. > > If you modify your transverter anyway , You may want to try a cheap solution: > Buy a Si5351A Clock Breakout Board or similar. It can be programmed to output > the frequency you need and i think is even more stable than the original > crystal which drifts a lot. > With a miniature computer like a arduino nano or attiny, you can build a > clock source you can switch 116 / 118 Mhz . Or any other frequency. > > Am 13.11.20 um 09:05 schrieb elecraft-requ...@mailman.qth.net: >> Message: 21 >> Date: Thu, 12 Nov 2020 16:08:33 -0600 (CST) >> From: Chris Cox >> To:elecraft...@groups.io,elecraft@mailman.qth.net >> Subject: [Elecraft] K3 transverter connector question >> Message-ID: >> Content-Type: text/plain; format=flowed; charset=US-ASCII >> Good day. >> I am considering recrystalling my 2m transverter with a 118MHz rock >> replacing the existing 116MHz crystal, thereby permitting full two metre >> band coverage with a 26-30MHz I/F. >> Does the K3 need to be widebanded to enable low-level 26-28MHz RF on the >> transverter transmit port or is the low-level output available by default? >> -- Chris Cox, N0UK, G4JEC chr...@chris.org > > -- > 73, Martin DM4iM > __ > 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 chr...@chris.org __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
[Elecraft] K3 transverter connector question
Good day. I am considering recrystalling my 2m transverter with a 118MHz rock replacing the existing 116MHz crystal, thereby permitting full two metre band coverage with a 26-30MHz I/F. Does the K3 need to be widebanded to enable low-level 26-28MHz RF on the transverter transmit port or is the low-level output available by default? -- Chris Cox, N0UK, G4JEC chr...@chris.org __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
[Elecraft] KX3 Tx Inhibit CW-VOX problem
Having solved the need for getting +Ve Tx Inhibit working on my KX3/10GHz Transverter integration using a MOSFET switch to invert the logic level coming from the 10GHz transverter and configured the KX3 for 0v Tx Inhibit, I had the opportunity to test it out yesterday afternoon. The solution seemed to work fine on SSB but I now have a weird issue when using the rig on CW. If I manually select transmit with the microphone PTT (didn’t try the XMIT key) and then wait for the transverter sequencing to remove Tx Inhibit and then key CW with the paddles, the system works as desired. If I key the system using CW VOX, the Tx Inhibit functions correctly, fully disabling the transmitter from producing RF until TxInhibit is removed by the transverter’s sequencing logic BUT then the CW sidetone becomes permanently on from the moment TXInh disappears, regardless of whether I am keying or not. It stays present until I press any of the buttons on the KX3. This happens regardless of which band is enabled, but occurs whenever TxInhibit is initially present. If I remove the TXInh fro the ACC2 GPIO input (but leave the option enabled in the KX3 config) the rig operates normally under VOX control. Can anyone else replicate this oddball behavior? It seems to be a firmware bug. I have tried removing power from the KX3 but that does not correct the anomalous behavior. Again, all works just fine if I don’t try to key the paddles before PTT sequencing has changed over. Chris Cox, N0UK Chris Cox, N0UK chr...@chris.org __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
[Elecraft] Continuing saga with Tx Inhibit and the KX3 - possible firmware bug?
Having solved the need for getting +Ve Tx Inhibit working on my KX3/10GHz Transverter integration using a mosfet switch to invert the signal and configured the KX3 for 0v Tx Inhibit, I had opportunity to test it out this afternoon. The solution seemed to work fine on SSB but I now have a weird issue when using the rig on CW. If I manually select transmit with the microphone PTT and then wait for the transverter sequencing to remove Tx Inhibit and then key CW with the paddles, the system works as desired. If I key the system using VOX, the Tx Inhibit functions correctly, fully disabling the transmitter from producing RF until TxInhibit is removed BUT the CW sidetone becomes permanently on from the moment TXInh disappears regardless of whether I am sending or not. It stays present until I press any of the buttons on the KX3. This happens regardless of which band is enabled, but occurs whenever TxInhibit is present. If I remove the TXInh fro the GPIO input (but leave the option enabled in the KX3 config) the rig operates normally. Can anyone else replicate this oddball behavior? It seems to be a firmware bug. I have tried removing power but that does not alter the effect. Again, all works just fine if I don’t try to key the paddles before PTT sequencing has changed over. Chris Cox, N0UK chr...@chris.org __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] KX3 ACC2 GPIO
Just as final follow up, a mosfet switch worked for my requirements perfectly. 73! Chris Cox, N0UK chr...@chris.org or chr...@britishcaranddriver.com > On Aug 31, 2020, at 18:26, Chris Cox wrote: > > I’ve thought the problem through further and have decided to use a simple > mosfet switch in the connector shell to invert the TXInh logic sense and > configure the KX3 for -TXInh instead of +TXInh. > > Hard switching the GPIO pin showed that to be a usable workaround. > > 73! Chris Cox, N0UK > chr...@chris.org or chr...@britishcaranddriver.com > > >> On Aug 31, 2020, at 12:51, Chris Cox, N0UK wrote: >> >> I wish to interface my KX3 to my portable 10GHz transporter system. I have >> the transporter’s PTT sequencer configured to output a +ve TX Inhibit signal >> which I have been using to prevent my current I/F rig from transmitting >> until all relays have changed over to transmit. The current rig is a Yaesu >> FT-817. >> >> I want to be able to simply switchover the PTT/TXInh cable between the two >> rigs, so that I can continue using the ‘817 as a backup in the event of some >> problem with the KX3, and so was intending to us the KX3’s ACC2 GPIO TX Inh >> +ve input just as I do the 817. >> >> However, it seems that the KX3 actually has some bias applied that requires >> to be pulled low to enable the transmitter, rather than looking for removal >> of the +ve signal. This will mean that I need more than to simple switch >> over the physical connectors on the umbilical cable. Although not >> insurmountable, it’s not exactly ideal. >> >> Anyone else done this or similar and, if so, what was your solution? >> >> 73 Chris >> >> >> Chris Cox, N0UK >> chr...@chris.org >> __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] KX3 ACC2 GPIO
I’ve thought the problem through further and have decided to use a simple mosfet switch in the connector shell to invert the TXInh logic sense and configure the KX3 for -TXInh instead of +TXInh. Hard switching the GPIO pin showed that to be a usable workaround. 73! Chris Cox, N0UK chr...@chris.org or chr...@britishcaranddriver.com > On Aug 31, 2020, at 12:51, Chris Cox, N0UK wrote: > > I wish to interface my KX3 to my portable 10GHz transporter system. I have > the transporter’s PTT sequencer configured to output a +ve TX Inhibit signal > which I have been using to prevent my current I/F rig from transmitting until > all relays have changed over to transmit. The current rig is a Yaesu FT-817. > > I want to be able to simply switchover the PTT/TXInh cable between the two > rigs, so that I can continue using the ‘817 as a backup in the event of some > problem with the KX3, and so was intending to us the KX3’s ACC2 GPIO TX Inh > +ve input just as I do the 817. > > However, it seems that the KX3 actually has some bias applied that requires > to be pulled low to enable the transmitter, rather than looking for removal > of the +ve signal. This will mean that I need more than to simple switch > over the physical connectors on the umbilical cable. Although not > insurmountable, it’s not exactly ideal. > > Anyone else done this or similar and, if so, what was your solution? > > 73 Chris > > > Chris Cox, N0UK > chr...@chris.org > __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] KX3 ACC2 GPIO
Thanks all - hopefully it now knows what a transverter is. Chris Cox, N0UK chr...@chris.org > On Aug 31, 2020, at 1:31 PM, Raymond Sills wrote: > > HI Chris: > > You have to "teach" the dictionary to understand that transverter is a real > word. For whatever reason, I must have done that at some time, since I can > have transporter and transverter in the same sentence with this iMac. > > But we knew what you meant, even if the Mac didn't. :) > > 73 de Ray > > > > > -Original Message- > From: Chris Cox, N0UK > To: elecraft...@groups.io; elecraft@mailman.qth.net > Sent: Mon, Aug 31, 2020 1:53 pm > Subject: Re: [Elecraft] KX3 ACC2 GPIO > > And why does my Mac ALWAYS rewrite TRANSVERTER as TRANSPORTER?! > > Chris Cox, N0UK > chr...@chris.org > > > > > On Aug 31, 2020, at 12:50 PM, Chris Cox, N0UK wrote: > > > > I wish to interface my KX3 to my portable 10GHz transporter system. I have > > the transporter’s PTT sequencer configured to output a +ve TX Inhibit > > signal which I have been using to prevent my current I/F rig from > > transmitting until all relays have changed over to transmit. The current > > rig is a Yaesu FT-817. > > > > I want to be able to simply switchover the PTT/TXInh cable between the two > > rigs, so that I can continue using the ‘817 as a backup in the event of > > some problem with the KX3, and so was intending to us the KX3’s ACC2 GPIO > > TX Inh +ve input just as I do the 817. > > > > However, it seems that the KX3 actually has some bias applied that requires > > to be pulled low to enable the transmitter, rather than looking for removal > > of the +ve signal. This will mean that I need more than to simple switch > > over the physical connectors on the umbilical cable. Although not > > insurmountable, it’s not exactly ideal. > > > > Anyone else done this or similar and, if so, what was your solution? > > > > 73 Chris > > > > > > Chris Cox, N0UK > > chr...@chris.org > > > > __ > > Elecraft mailing list > > Home: http://mailman.qth.net/mailman/listinfo/elecraft > > Help: http://mailman.qth.net/mmfaq.htm > > Post: mailto:Elecraft@mailman.qth.net > > > > This list hosted by: http://www.qsl.net > > Please help support this email list: http://www.qsl.net/donate.html > > Message delivered to chr...@chris.org > > > __ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft@mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to raysil...@verizon.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] KX3 ACC2 GPIO
And why does my Mac ALWAYS rewrite TRANSVERTER as TRANSPORTER?! Chris Cox, N0UK chr...@chris.org > On Aug 31, 2020, at 12:50 PM, Chris Cox, N0UK wrote: > > I wish to interface my KX3 to my portable 10GHz transporter system. I have > the transporter’s PTT sequencer configured to output a +ve TX Inhibit signal > which I have been using to prevent my current I/F rig from transmitting until > all relays have changed over to transmit. The current rig is a Yaesu FT-817. > > I want to be able to simply switchover the PTT/TXInh cable between the two > rigs, so that I can continue using the ‘817 as a backup in the event of some > problem with the KX3, and so was intending to us the KX3’s ACC2 GPIO TX Inh > +ve input just as I do the 817. > > However, it seems that the KX3 actually has some bias applied that requires > to be pulled low to enable the transmitter, rather than looking for removal > of the +ve signal. This will mean that I need more than to simple switch > over the physical connectors on the umbilical cable. Although not > insurmountable, it’s not exactly ideal. > > Anyone else done this or similar and, if so, what was your solution? > > 73 Chris > > > Chris Cox, N0UK > chr...@chris.org > > __ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft@mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to chr...@chris.org __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
[Elecraft] KX3 ACC2 GPIO
I wish to interface my KX3 to my portable 10GHz transporter system. I have the transporter’s PTT sequencer configured to output a +ve TX Inhibit signal which I have been using to prevent my current I/F rig from transmitting until all relays have changed over to transmit. The current rig is a Yaesu FT-817. I want to be able to simply switchover the PTT/TXInh cable between the two rigs, so that I can continue using the ‘817 as a backup in the event of some problem with the KX3, and so was intending to us the KX3’s ACC2 GPIO TX Inh +ve input just as I do the 817. However, it seems that the KX3 actually has some bias applied that requires to be pulled low to enable the transmitter, rather than looking for removal of the +ve signal. This will mean that I need more than to simple switch over the physical connectors on the umbilical cable. Although not insurmountable, it’s not exactly ideal. Anyone else done this or similar and, if so, what was your solution? 73 Chris Chris Cox, N0UK chr...@chris.org __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] scratchs on display
Thanks everyone for all of the great suggestions. -- Chris Cox, N0UK, G4JEC chr...@chris.org __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] PX3 acrylic scratch removal
Thanks Alan and Mike for the two suggestions. And, yes Mike, you’re correct about adTHANKSvance! __ 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] PX3 acrylic scratch removal
Can anyone recommend a safe polish or other to aid in buffing out a minor surface scratch on the plastic (Perspex/acrylic?) screen cover on a PX3? inTHANKSadvance Chris, N0UK, G4JEC __ 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] KX3 remote a K3
It appears not, although I was wondering the same thing. -- 73 Chris Cox, N0UK, G4JEC chr...@chris.org On Mon, 22 Jul 2019, Frank Krozel wrote: > I’m not sure if this is ever been asked before but can a KX3 remotely control > a K3? Off-line responses please de Frank KG9H Sincerely, Frank Krozel t: 1-630-924-1600 fr...@electronicinstrument.com BSEE, AASEET, FCC Lic.# PG-18-19178, KG9H Electronic Instrument Associates - Central, Inc. ...since 1971 w: www.electronicinstrument.com d/l our linecard at http://www.electronicinstrument.com/lc.pdf __ 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 chr...@chris.org__ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] KPA1500 AC Mains wire colours
Sorry, I'm not being pedantic but standard US home supply is NOT two phaes plus ground, it is still single phase 120-0-120 Vac with the 0 volt being grounded and tied to the neutral line for each of the two anti-phase hot lines. The power is distributed around the area as three phase and each of those three phases is then typically split between three properties at the outdoor powerpole. -- 73 Chris Cox, N0UK, G4JEC chr...@chris.org On Sat, 18 May 2019, Jim Brown wrote: > On 5/18/2019 4:28 PM, Clay Autery wrote: > > 230VAC on 3 wires? Never knew they did 3 wire 220V I always > > assumed it was still 2 hots and ground (plus an optional neutral). > > Two hots (phases) and ground is three wires. Single-phase power normally > comes into a building in North America as two phases and a neutral. We > connect a 240V load between the two phases, and a 120V load between one > phase and a neutral. It's not unusual to feed a sub-panel with both > phases, neutral, and ground so that the panel can feed both 120V and > 240V loads. The key here is that loads must NEVER be connected between a > phase and ground, ALWAYS between phases or between phase and neutral. > > You probably know that EU runs on 230/240V, wired phase, neutral, and > ground. > > 73, Jim K9YC > > __ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft@mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html__ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] Auto-spot, tuning aids, and the arcane history of CW pitch-matching
-- 73 Chris Cox, N0UK, G4JEC chr...@chris.org On Tue, 22 Jan 2019, K9MA wrote: > transmitter before every contact. Spotting required turning one of the rotary > switches on the transmitter, a cumbersome process. Imagine doing that a couple > thousand times in a weekend. At some point, we came up with the idea to hook a > foot switch up to do the spotting, which made it much easier, and save a lot > of wear and tear on the rotary switch, not to mention the operator's wrist. > > In those days, 40-50 years ago, transceivers just didn't work well on CW, so > almost all CW operators used separate transmitters and receivers. Some, like > the Drake line, could transceive, but had the same problem on CW. Transceivers > didn't account for the BFO offset, and there was no RIT or XIT. If you called > another station in transceive mode, you would be 700 Hz or so off frequency. > Two transceivers pretty much couldn't work each other at all. Sometime while I > was inactive in the late 70's and 80's, that problem was solved, and we no > longer had to spot before every contact. I think that solution had to wait for > frequency synthesis, as it otherwise would have required additional > (expensive) crystals. Does anyone know of a non-synthesized transceiver that > didn't have the CW offset problem? > > 73, > Scott K9MA > > > On 1/21/2019 23:09, Wayne Burdick wrote: > > Elecraft's auto-spot and CWT features -- available on the K3/K3S/KX2/KX3 -- > > are very useful tools for CW operators, especially those not experienced in > > pitch-matching. Here's a bit of history on where these features came from > > and how they work. > > > -- > Scott K9MA > > k...@sdellington.us > > __ > 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 chr...@chris.org > __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] Auto-spot, tuning aids, and the arcane history of CW pitch-matching
The transceive problem didn't seem to exist on any older non-synthesized transceiver that I have used, including FT-101 series, TS-520/820 and later, KW Electronics KW-2000E. these were all '70s era transceivers. -- 73 Chris Cox, N0UK, G4JEC chr...@chris.org __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] 6m meteor scatter
In my opinion, although it works great on 6m, where high-speed meteor scatter techniques really shine (no pun intended) is when used on 2m and 1.25m bands. There are frequently enough longer pings and burns on 6m that SSB can be used effectively, especially during meteor showers. Many new (and old!) hams aren't even aware of meteor scatter at all and don't realise that it makes working real DX on all of the VHF bands a routine, daily event. Sure, you can't do it with a FM handheld and rubber duck, but with a 100W or more and a reasonable single-yagi antenna, QSO's in the 800-1000 mile range can be made year-round. Perhaps a little off-topic for the Elecraft list-server, but always worth mentioning! 73 Chris (pingjockey.net webmaster) -- 73 Chris Cox, N0UK, G4JEC chr...@chris.org On Wed, 5 Dec 2018, Jim Brown wrote: > While MS QSOs can be made with random CQing on 50.260, most are > scheduled via Ping Jockey or ON4KST chat. There's a learning curve to > operating MS, and QSOs via MS can take a while to complete. It's not > unusual for it to take 30 minutes for "rocks" to align in the space > between QSO partners to provide the reflections for pings that WSJT-X > decodes to complete all the steps of the QSO. > > MS is NOT a good mode for QRP, and while QSOs can be made with 100W, > more power increases the likelihood of a good ping and shortens the time > it takes to complete. > > If you're chasing grids on 6M, MS is a great way to fill in those that > are beyond the range of tropospheric propagation and too close for > E-skip. The limit for MS is about 1,300 miles, and even that distance > requires great rocks, high power, decent antennas, great ops, and > persistence. > > MS is one of the propagation modes for which the exchange format and > progress of WSJT mode QSOs was developed, and it is rigidly followed. > > 73, Jim K9YC > > On 12/5/2018 9:00 AM, Mike Cizek W0VTT wrote: > > MSK144 on 50.260 WSJT-X v2.0 More info here: > > https://physics.princeton.edu/pulsar/k1jt/wsjtx.html > > You will find the Ping Jockey chatroom very friendly and helpful: > > https://www.pingjockey.net/cgi-bin/pingtalk > __ > 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 chr...@chris.org__ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
[Elecraft] Antenna switching question
I love how well the external KPA100 performs and integrates with my KX3, and am particularly impressed at the speed the PA's ATU can find a match. The only niggle I have is that I need to remember to disable the ATU when using my mag loop on antenna 2 and enable it when using the end-fed wire on antenna port 1. Given that the firmware very effectively memorizes the various optimal tuning combinations for the various antennas, it woul dbe very nice that it remember whether the tuner should be enabled or disabled depending upon which antenna is selected. Is that possible already, or a suggestion for a future firmware release? 73 Chris, N0UK -- 73 Chris Cox, N0UK, G4JEC chr...@chris.org __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] [KX3] BNC connector oddity on KX3
Indeed - i didn't know that. Thanks for the info, Dale. SO, if you have an OLD 75 Ohm BNC plug... :-) -- 73 Chris Cox, N0UK, G4JEC chr...@chris.org On Mon, 19 Feb 2018, Dale Parfitt wrote: > The center pin on 50 Ohm and 75 Ohm BNC?s has been identical for perhaps 20 > years. The 75 Ohm impedance is now attained through modification of the > connector?s dielectric structure. > > > > Regards, > > > > Dale W4OP > > > > From: k...@yahoogroups.com [mailto:k...@yahoogroups.com] On Behalf Of 'Chris > Cox, N0UK' ygsoftroc...@chris.org [KX3] > Sent: Monday, February 19, 2018 12:29 PM > To: rich hurd WC3T > Cc: k...@yahoogroups.com; elecraft@mailman.qth.net > Subject: Re: [KX3] BNC connector oddity on KX3 > > > > > > Not saying this IS the problem but i fth emale BNC plug is a 75 ohm > connector, its centre pin will be a narrower diameter and may only be > making intermittent contact with the female socket on the KX3. > > -- > 73 Chris Cox, N0UK, G4JEC > chr...@chris.org > > On Mon, 19 Feb 2018, rich hurd WC3T r...@wc3t.us [KX3] wrote: > > > Hi, > > > > I had an oddity with hooking an antenna to the BNC connector on my KX3 > that > > happened enough times to be chalked up to something other than random > > chance. Looking for opinions on whether my solution aligned to your > > experience(s). > > > > I have a complete station - a KX3, a PX3, and a KXPA100. The KXPA100 is > > connected via a Cables On Demand connector with a PL259 on one end and a > > BNC connector on the other end. All other interface cables are Elecraft > > standard. > > > > This is NOT the first BNC connector that I've used. Prior to this last > > acquisition I had a couple of other BNC to PL259 jumpers that I was using, > > and the usual smattering of connectors and adapters in the junque box. > > > > No matter which one I used, If I removed the BNC connector from the rig > > (maybe to go portable, for example, or the last time it was because I > > installed Eneloop Pro batteries to the internal battery holders) I would > > put everything back together, and then would have severe - almost > > debilitating - signal attenuation when I got the rig fired up. If I > > twisted and spun the BNC connector on the jack, it would improve, and then > > get bad again more often than not. It could take up to 20 minutes to get > > everything "dialed in" so that the signal was appearing again. God help me > > if I accidentally moved something after that. And of course, while all > > this was happening the ATU was having fits, with 99:1 SWR readings and the > > amp was going offline; all kinds of weirdnesses. After things calmed > > down. the ATU behaved itself, the amp stopped being pouty, and all was > then > > good. > > > > Thankfully, now that I have the Cables On Demand product, things seem to > > have quieted down - although I still don't disconnect without provocation. > > :) Though I'm desperately afraid of when I start to go mobile after the > > snow melts and the weather gets nice again. :) Hope I can get my IC706 > > fixed and back in service as my base station before that occurs. > > > > My question was going to be in desperation more than anything else if this > > last cable didn't work, but thankfully, that's been the only cable vendor > > that I trust for any of my specialized cables and they haven't failed me > > even with this one. > > > > Are BNC connectors that finicky? Is it possible that I just had a bad > > batch of low quality jumpers? I'm just wondering if anyone else has had > > excessive fiddling with their BNC connections. > > > > --- > > 72, > > Rich Hurd / WC3T / DMR: 3142737 > > PA Army MARS, 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* > > > > __._,_.___ > > > Reply via web post > > ? > > <mailto:?subject=> Reply to sender > > ? > > <mailto:k...@yahoogroups.com?subject=> Reply to group > > ? > > Start a New Topic > > ? > > Messages in this topic () > > _ > > > <https://s.yimg.com/ru/static/images/yg/img/megaphone/1464031581_phpFA8bON> > > <https://yho.com/1wwmgg> Have you tried the highest rated email app? > > With 4.5 stars in iTunes, the Yahoo Mail app is the highest rated email app > on the market. What are you waiting for? Now you can access all your inboxes > (Gmail, Outlook,
