Re: [Elecraft] K3S IF signals seen in P3 and NaP3 but nothing heard
It is silver sulfide {tarnish} which is semiconductor and will therefore
conduct electricity, but will reduce the surface conductivity. To what
extent will depend on the thickness of the tarnish. Surface tarnish
will not affect bulk conductivity unless the "bulk" thickness is very
thin. Since silver is soft, when one contact rubs against the other it
cleans itself. However, if the contacts are not designed to do this then
there could be the issue and longer term problem with accumulation of
low conductivity sulfides. Basically then resulting in loss of
conductivity.
73
Bob, K4TAX
On 7/10/2019 6:56 PM, Wes wrote:
I beg to differ: https://groups.io/g/Elecraft-K3/album?id=37256
Some of these are disengaged purposely. And no, I don't live in a
corrosive atmosphere, the opposite ends are pristine.
Wes N7WS
On 7/10/2019 1:33 PM, w4sc wrote:
The TMP connectors should never need cleaning unless they have been
contaminated (usually by body oil from handling) as they are silver
plated. Don’t handle the contact areas of the male plug, as once oil
is on the plug it will transfer to the jack on the board, potentially
causing connection issues.
Ben W4SC
Sent from Mail for Windows 10
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[Elecraft] P3 For Sale
P3 Panadapter. Comes with cblp3y cable to interface with the K3S and cables for the K3. $599 plus shipping. PayPal and certified checks accepted, US sales only. Lou, W0FK - St. Louis, MO "The difference between stupidity and genius is that genius has its limits." Albert Einstein -- Sent from: http://elecraft.365791.n2.nabble.com/ __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
[Elecraft] Norcal 40a
GE Gentleman, I wonder if anyone might have a Norcal 40a Designed by Wayne Burdick (N6KR) for sale? I would much appreciate hearing from you. Tks es 73 de VE3VTG Good on QRZ __ 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] K3S IF signals seen in P3 and NaP3 but nothing heard
I beg to differ: https://groups.io/g/Elecraft-K3/album?id=37256 Some of these are disengaged purposely. And no, I don't live in a corrosive atmosphere, the opposite ends are pristine. Wes N7WS On 7/10/2019 1:33 PM, w4sc wrote: The TMP connectors should never need cleaning unless they have been contaminated (usually by body oil from handling) as they are silver plated. Don’t handle the contact areas of the male plug, as once oil is on the plug it will transfer to the jack on the board, potentially causing connection issues. Ben W4SC Sent from Mail for Windows 10 __ 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] K3S IF signals seen in P3 and NaP3 but nothing heard
The TMP connectors should never need cleaning unless they have been contaminated (usually by body oil from handling) as they are silver plated. Don’t handle the contact areas of the male plug, as once oil is on the plug it will transfer to the jack on the board, potentially causing connection issues. Ben W4SC Sent from Mail for Windows 10 __ 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] FW: A couple of K3 rigs for sale - UPDATE
Both rigs have found new homes so now my XYL can’t argue too much about a new K4 (or two). I’ll have fully loaded S/N 4933 for sale in December after my first K4 arrives if anyone is interested. It is loaded essentially the same as #752 below but obviously newer. Thanks, Bob K5WA From: K5WA mailto:k...@comcast.net> > Sent: Sunday, June 9, 2019 3:23 PM To: 'Elecraft@mailman.qth.net' mailto:Elecraft@mailman.qth.net> > Subject: A couple of K3 rigs for sale Well, the K4 got my attention and I need to clear the decks so my XYL won’t buy too much furniture in retaliation. I’m putting these 2 rigs up for sale now and I’ll sell the third one after a K4 ships in early 2020. I will deliver within 100 miles of Houston and $50 can be deducted from the prices if I don’t have to ship. If an international shipment is needed, let’s talk to see how/if that can be done but I’d prefer CONUS. Here is the blurb I’m sending around: I took some pictures of two rigs I’m selling. If you’re looking for a used competition grade K3, I think you would like either of these. Be sure and look at the comments beside most of the pictures which tell what I was trying to communicate with each picture. A full “new” pricing estimate is there for comparison and to detail what is in each rig. The actual selling price is listed below. https://photos.app.goo.gl/PQ9aWkhAcXCmnY5i7 This is S/N 752 (ALREADY SOLD) which has the USB connection (from the KIO3B upgrade) as well as the KSYN3 synthesizer upgrade on main and sub receivers. I’m listing this at $3200 shipped FedEx ground for CONUS. https://photos.app.goo.gl/kbmnKdbEDdJL4hEa7This is S/N 234 and has the 2 meter module, the K3SYN upgrade (MAIN and SUB), a couple more filters and the general coverage band pass but no USB connection. I’m listing this one at $3400 shipped FedEx ground. My photography skills are not the best but I think someone would get a good idea of the condition of both rigs. Contact me directly with any questions. Thanks, Bob K5WA __ 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] K3S IF signals seen in P3 and NaP3 but nothing heard
I always used a pencil eraser, worked great. On old Stromberg Carlson Switch gear to clean the contacts I used a $100 bill. Not much grease on them. Hi hi... Ed.. AB4IQ -Original Message- From: elecraft-boun...@mailman.qth.net [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Bob McGraw K4TAX Sent: Wednesday, July 10, 2019 1:08 PM To: elecraft@mailman.qth.net Subject: Re: [Elecraft] K3S IF signals seen in P3 and NaP3 but nothing heard These cables, like many cables with connectors will accrue connector oxidation. Often the oxidation is such that it prevents a very low level signal from passing. The solution for many instances is simply to clean connectors. My approach is to use a Q-Tip, apply your favorite contact cleaner to the Q-Tip, unplug one connector at a time, and scrub the male pins. Then exercise the connector in and out of the jack or plug to wipe the female socket. Then move on to another connector, doing the same. And for gosh sake, NEVER NEVER spray anything into the radio, a socket or a connector. You'll regret ever doing that for a long long time. 73 Bob, K4TAX On 7/10/2019 12:14 PM, Grant Youngman wrote: > i have never had a problem with TMP cables themselves. They’ve been in and > out of my K3 many times doing upgrades, etc. I HAVE had a problem with my > own careless installation. > > In some socket locations you have to be careful. You can’t just jam the plug > in the socket when you feel resistance. On a few of the sockets (not all), > if the cable enter pin is slightly misaligned and you keep pushing, you will > end up displacing the tip end of the socket. Can’t say that’s what happened > here, but appropriate care can put off a lot of head scratching and diagnosis > time later. > > Hard lessons learned the hard way .. > > Grant NQ5T > K3 #2091 KX3 #8342 > >> On Jul 10, 2019, at 12:25 PM, Tom Doligalski via Elecraft >> wrote: >> >> I have had similar problems with the TMP cables. Was tempted to just replace >> all of them, but everything seems to be working great now! >> >> Tom W4KX >> >> Sent from my iPad >> >>> On Jul 9, 2019, at 8:36 PM, Brian wrote: >>> >>> Anyhow, earlier today (a month later ? ) the same thing happened. So >>> before pulling the receiver board and re-setting it in the pin socket >>> (hoping for a better connection) I looked at the other hardware connection >>> there.. the two TMP plugs/sockets. So I took the two cables out with the >>> TMP plugs on them and reset them twice. >>> Behold, signals heard. >>> > __ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft@mailman.qth.net > > This list hosted by: http://www.qsl.net Please help support this email > list: http://www.qsl.net/donate.html Message delivered to > rmcg...@blomand.net __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to ab...@comcast.net __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] K3S IF signals seen in P3 and NaP3 but nothing heard
When I install TMP cables in hard-to-reach locations I use hemostats, the ones with the knurled teeth. Of course never clamp down on the connector, keep it with the loosest possible grip so as not to deform anything. Gary KA1J > i have never had a problem with TMP cables themselves. They´ve been > in and out of my K3 many times doing upgrades, etc. I HAVE had a > problem with my own careless installation. > > In some socket locations you have to be careful. You can´t just jam > the plug in the socket when you feel resistance. On a few of the > sockets (not all), if the cable enter pin is slightly misaligned and > you keep pushing, you will end up displacing the tip end of the > socket. Can´t say that´s what happened here, but appropriate care > can put off a lot of head scratching and diagnosis time later. > > Hard lessons learned the hard way .. > > Grant NQ5T > K3 #2091 KX3 #8342 > > > On Jul 10, 2019, at 12:25 PM, Tom Doligalski via Elecraft > > wrote: > > > > I have had similar problems with the TMP cables. Was tempted to just > > replace all of them, but everything seems to be working great now! > > > > Tom W4KX > > > > Sent from my iPad > > > >> On Jul 9, 2019, at 8:36 PM, Brian > >> wrote: > >> > >> Anyhow, earlier today (a month later ? ) the same thing happened. > >> So before pulling the receiver board and re-setting it in the pin > >> socket (hoping for a better connection) I looked at the other > >> hardware connection there.. the two TMP plugs/sockets. So I took > >> the two cables out with the TMP plugs on them and reset them twice. > >> Behold, signals heard. __ 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] K3S IF signals seen in P3 and NaP3 but nothing heard
These cables, like many cables with connectors will accrue connector oxidation. Often the oxidation is such that it prevents a very low level signal from passing. The solution for many instances is simply to clean connectors. My approach is to use a Q-Tip, apply your favorite contact cleaner to the Q-Tip, unplug one connector at a time, and scrub the male pins. Then exercise the connector in and out of the jack or plug to wipe the female socket. Then move on to another connector, doing the same. And for gosh sake, NEVER NEVER spray anything into the radio, a socket or a connector. You'll regret ever doing that for a long long time. 73 Bob, K4TAX On 7/10/2019 12:14 PM, Grant Youngman wrote: i have never had a problem with TMP cables themselves. They’ve been in and out of my K3 many times doing upgrades, etc. I HAVE had a problem with my own careless installation. In some socket locations you have to be careful. You can’t just jam the plug in the socket when you feel resistance. On a few of the sockets (not all), if the cable enter pin is slightly misaligned and you keep pushing, you will end up displacing the tip end of the socket. Can’t say that’s what happened here, but appropriate care can put off a lot of head scratching and diagnosis time later. Hard lessons learned the hard way .. Grant NQ5T K3 #2091 KX3 #8342 On Jul 10, 2019, at 12:25 PM, Tom Doligalski via Elecraft wrote: I have had similar problems with the TMP cables. Was tempted to just replace all of them, but everything seems to be working great now! Tom W4KX Sent from my iPad On Jul 9, 2019, at 8:36 PM, Brian wrote: Anyhow, earlier today (a month later ? ) the same thing happened. So before pulling the receiver board and re-setting it in the pin socket (hoping for a better connection) I looked at the other hardware connection there.. the two TMP plugs/sockets. So I took the two cables out with the TMP plugs on them and reset them twice. Behold, signals heard. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to rmcg...@blomand.net __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] K3S IF signals seen in P3 and NaP3 but nothing heard
i have never had a problem with TMP cables themselves. They’ve been in and out of my K3 many times doing upgrades, etc. I HAVE had a problem with my own careless installation. In some socket locations you have to be careful. You can’t just jam the plug in the socket when you feel resistance. On a few of the sockets (not all), if the cable enter pin is slightly misaligned and you keep pushing, you will end up displacing the tip end of the socket. Can’t say that’s what happened here, but appropriate care can put off a lot of head scratching and diagnosis time later. Hard lessons learned the hard way .. Grant NQ5T K3 #2091 KX3 #8342 > On Jul 10, 2019, at 12:25 PM, Tom Doligalski via Elecraft > wrote: > > I have had similar problems with the TMP cables. Was tempted to just replace > all of them, but everything seems to be working great now! > > Tom W4KX > > Sent from my iPad > >> On Jul 9, 2019, at 8:36 PM, Brian wrote: >> >> Anyhow, earlier today (a month later ? ) the same thing happened. So before >> pulling the receiver board and re-setting it in the pin socket (hoping for a >> better connection) I looked at the other hardware connection there.. the two >> TMP plugs/sockets. So I took the two cables out with the TMP plugs on them >> and reset them twice. >> Behold, signals heard. >> __ 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] K3S IF signals seen in P3 and NaP3 but nothing heard
I have had similar problems with the TMP cables. Was tempted to just replace all of them, but everything seems to be working great now! Tom W4KX Sent from my iPad > On Jul 9, 2019, at 8:36 PM, Brian wrote: > > A few weeks back I bought a used K3 upgraded to K3S in many ways, including a > sub-receiver (which I doubt I will use). > Anyhow.. about a week or so in I was in a situation where I could see IF > signals on the P3 (and NaP3) but hear no signals. > I contacted Elecraft service and they felt that if it persisted I might look > at replacing the receiver board at the front (behind display panel) with gold > pins (which could be ordered from DigiKey) but would require > removal/replacement of the pins on the board. Not eager to do that if > avoidable. > > Anyhow, by the time (day or so) Elecraft had consulted internally and > responded the receiver was once again hearing and presenting signals. I left > it at that, thinking well the radio WAS shipped etc. so maybe some settlement > etc. > > Anyhow, earlier today (a month later ? ) the same thing happened. So before > pulling the receiver board and re-setting it in the pin socket (hoping for a > better connection) I looked at the other hardware connection there.. the two > TMP plugs/sockets. So I took the two cables out with the TMP plugs on them > and reset them twice. > Behold, signals heard. > > I will let this be for now and if it does not repeat then leave it. I will > let you all know if in the short/medium term the program stays away or > returns. I did see ONE reference to this in the mail list archives, but the > gold pins were mentioned there. Nothing re. the accessible and simpler TMP > plugs. > > 73 > Brian VE3VAW Toronto ON > > > __ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft@mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to w...@mac.com __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
[Elecraft] K4 Sound Card, used for Weak Signal Digital Modes.
"Perhaps it will be the same as the carefully chosen TI chip used in the K3-S" What is the part number of that carefully chosen TI chip? Various versions of the PCM2903 are used in amateur radio equipment. Did Elecraft use something better in the K3S? 73, Andy, k3wyc __ 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] K4 Sound Card, used for Weak Signal Digital Modes.
If available at this early stage, any specs on the upcoming K4 sound card, or likewise, its internal chip model number, would be of interest here. Perhaps it will be the same as the carefully chosen TI chip used in the K3-S. Thank you. __ 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] XVTR Out level
Hi Gary could you perhaps chose 2 transverters 144MHz and 145MHz and set the levels accordingly? Fortunately all my transverters have a 28MHz IF. Another Elecraft 'surprise'. The worst one for me is the K3S TX IMD on 6m, its really quite awful and not good enough for me to use. So I suppose that I will end up using the transverter port for 6m as well. Its a shame because the RX is outstanding. You will love the performance of the Kuhne transverter with the K3, its the best combination that I have found for the band. 73 Conrad PA5Y From: elecraft-boun...@mailman.qth.net on behalf of Gary Johnson Sent: 09 July 2019 06:10 To: Elecraft@mailman.qth.net Subject: Re: [Elecraft] XVTR Out level Sure enough, the BPFs are in the low-level RF path on TX and RX. Moral of the story is to choose a transverter with a 28 MHz IF when maximum usable frequency range is desired. Gary NA6O __ 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 g0...@g0ruz.com __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
