[Elecraft] K3S- KPA3 100 Watt Amplifier not working
The 100-watt KPA-3 amplifier on my K3S quit working. The IPA is working fine with 12 watts output. Please advise what I can check on the KPA-3 to try and determine the issue. TNX & 73, Dick- K9OM (r...@aol.com) __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
[Elecraft] Interference from KPA1500 power supply
Yesterday I noticed in going from 100 watts to near a KW on 10 meters that when I turned my KPA1500 ON, the background noise on my K3S jumped up about three S-units according to the P3. Just turning on the front panel main "ON" switch starts the noise even though the operate switch is still in Standby. Then when turning the amp back off the noise fades for about 1 or 2 seconds before it drops out completely. The noise is certainly enough to completely cover any weaker 10-meter signal. I checked for this happening on all other bands and found no noise on any other bands. The noise is certainly enough to completely cover any weaker 10 meter signal. I have been using the KPA1500 for several years, and this is something totally new which just started. Has anyone else encountered this problem? What are other operators' thoughts? Charles Shaw - N5UL - Hobbs, NM __ 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] P3 Panadapter with K2
Does anyone know if the P3 Panadapter will work with the K2 transceiver? It does, with a number of caveats: - The K2 does not have an IF Out port. On my K2, I never installed the no-antennatuner BNC connector; I modified the connector to use a small coax cable (AWAY from the high RF output of the antenna circuit to avoid leaks) and re-purposed the BNC for "IF Out". In hindsight, perhaps I should have used a SMA connector and some filler rings (for the same hole at the back of the K2) - You need an IF buffer amplifier. Search for "Clifton Laboratories Z1". The buffer amplifier comes in two versions, Z1-K2 and Z1-U. You want the K2 model, or get the universal model and add the 4.915 Mhz filtering. - The IF output is a tad low, you won't see "the bottom of the band" though I still found this useful - The P3 cannot talk to the K2. Which means that there won't be frequencies on the P3 display, nor can you make the P3 "shift" as you can make the K3 do. The center will be the frequency you are receiving (which I consider most useful anyway), but that's what you get. - The K2 has some BFO leakage back into the IF. For reception that does not matter; however for spectrum display you will find a spike in the center of the frequency you are receiving. There are some mods to make it "less" but not "gone". If you have a live band you probably won't notice; I was using the QO100 passband on which signals have a max strength of 24dB above noise and then the spike shows. I did not find it objectionable. I do suggest you take some time to look up the original Clifton Z1 documentation; it is a piece of art on the same standard as the K2 manual if not higher. I learned quite some things by just looking at the documentation. It is very unfortunate that Jack is no longer with us; however production of the amplifier has been taken over by DX engineering who sells pre-built boards which seem to be of similar standard as the ones Jack provided. Is it useful? Definitely! Recommended? Yes. But you should know the limitations, which is why my posting is more verbose. 73, Geert Jan PE1HZG __ 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- Part fell out!
Thanks to everyone that offered suggestions. Primarily culprit is one of the surface mount resistors on the KPA3. I won't know for sure until I take the KPA3 out next week, but I had that part fail before on my personal K3. I got the repair info from Keith WE6R and, once I can verify (or not) that that is the problem, I can get on with repairs. Dennis W1UE __ 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] P3 Panadapter with K2
Bill, If you add the Clifton Labs Z2 buffer amplifier (now sold by DX Engineering) to provide an IF output from the K2, it will work as a spectrum display. It will not report the K2 VFO frequency as it does with the K3. 73, Don W3FPR On 1/24/2023 3:03 PM, William Santos via Elecraft wrote: Does anyone know if the P3 Panadapter will work with the K2 transceiver? __ 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] P3 Panadapter with K2
The K2 doesn’t have an IF out, unless it has been modified. Without the IF out, it won’t Sent from my iPhone > On Jan 24, 2023, at 3:05 PM, William Santos via Elecraft > wrote: > > Does anyone know if the P3 Panadapter will work with the K2 transceiver? > > Thanks and 73, > > Bill > KN6UDK > __ > 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 hsherr...@reagan.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] P3 Panadapter with K2
Does anyone know if the P3 Panadapter will work with the K2 transceiver? Thanks and 73, Bill KN6UDK __ 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, FLDIGI, SignaLinkUSB - Not Exiting XMIT Mode
I have a KX3, running through the KXPA100, connected via Serial USB to a Windows 10 machine. I'm using Win4k3 2.0.4.0 and com0com to share out the COMPort. I have N3FJP's Amateur Contact Log running, as well as FLDIGI v 4.1.18 in normal mode. When I run a macro in FLDIGI, the macro engages the XMIT mode, sends the data via PSK, and disables TX mode, and I can hear a switch flip in the KX3, but 1) the transmit light is still red and 2) there is no RX. If I manually press the XMIT button, the light goes off and RX begins again. This is a new development which started earlier this morning as my Elmer was running PSK for VOTA (W1AW/7). No apparent changes were made to configuration. I've reviewed the Cady book on PSK settings, and double checked connections from the KX3, Signalink, and KXPA. No obvious issues. Has anyone seen this in the past? 73 de K7JTO John O. Salt Lake City UT USA __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] Elecraft Digest, Vol 225, Issue 9
Correction - could be 3R3 - that's an inductor. W1GCF Geoff -Original Message- From: elecraft-boun...@mailman.qth.net [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of elecraft-requ...@mailman.qth.net Sent: Tuesday, January 24, 2023 12:42 PM To: elecraft@mailman.qth.net Subject: Elecraft Digest, Vol 225, Issue 9 Send Elecraft mailing list submissions to elecraft@mailman.qth.net 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 elecraft-requ...@mailman.qth.net You can reach the person managing the list at elecraft-ow...@mailman.qth.net When replying, please edit your Subject line so it is more specific than "Re: Contents of Elecraft digest..." Today's Topics: 1. Re: K3- Part fell out! (Fred Jensen) 2. Re: K3- Part fell out! (Rich WC3T) 3. Re: K3- Part fell out! (Chris Waldrup) 4. Re: K3- Part fell out! (Dave New) 5. Re: K3- Part fell out! (Dave New) 6. Re: arrl.net domain is being blocked! (Dave New) 7. Re: K3- Part fell out! (Geert Jan de Groot) 8. Re: arrl.net domain is being blocked! (Andrew Moore) 9. Re: arrl.net domain is being blocked! (Rick NK7I) 10. Re: arrl.net domain is being blocked! (Dave New, N8SBE) 11. Re: K3- Part fell out! (Lee Hiers) 12. Re: arrl.net domain is being blocked! (Rich WC3T) 13. Re: arrl.net domain is being blocked! (Dave New, N8SBE) 14. Re: arrl.net domain is being blocked! (Rich WC3T) 15. Y-Box For Sale (Dave) 16. Re: Keying the K3s (Jim McCook) 17. Re: arrl.net domain is being blocked! (Sam Carson) 18. Re: Keying the K3s (Lee Hiers) 19. Re: Keying the K3s (Jim McCook) 20. Re: Keying the K3s (Lee Hiers) 21. Re: Keying the K3s (Rick Bates, NK7I) 22. Re: Keying the K3s (Brian Hunt) -- Message: 1 Date: Mon, 23 Jan 2023 13:40:11 -0800 From: Fred Jensen To: Dennis W1UE Cc: Reflector Elecraft Subject: Re: [Elecraft] K3- Part fell out! Message-ID: <5fb4c25a-33c7-eb08-cdd6-30770aefc...@gmail.com> Content-Type: text/plain; charset=utf-8; format=flowed Does the radio still work?? If I find loose parts but the radio still works, I consider them to be spare parts. ?? Seriously, does it appear to be electronic in nature ... i.e. does it have terminals or solder points? 73, Fred ["Skip"] K6DGW Sparks NV DM09dn Washoe County Dennis W1UE wrote on 1/23/2023 1:21 PM: > I dropped d a lock washer into the bowels of my K3 today, so had to invert > the unit to get the washer out of the unit. When I did so, the washer fell > out of the unit, but so did another component. Its a small rectangular > part, white on one side and blackish on the other, and either "3K3" or > "3R3" is stamped on it. I don't know where the part came from, or where it > should go back' I'm just sure it doesn't belong sitting on my bookshelf > rather than be in the radio. > > Can anyone maybe help me find where it should be going? I know its not an > easy > thing to diagnose, but any suggestions on where it should go before I try > taking > the radio apart again. > > Dennis w1UE > __ > 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 tok6dg...@gmail.com -- This email has been checked for viruses by AVG antivirus software. www.avg.com -- Message: 2 Date: Mon, 23 Jan 2023 16:41:39 -0500 From: Rich WC3T To: Dennis W1UE Cc: Reflector Elecraft Subject: Re: [Elecraft] K3- Part fell out! Message-ID: <06bb612c-3aca-4fab-97a5-c6996474e...@wc3t.us> Content-Type: text/plain; charset=utf-8 My totally uneducated guess is that it?s a surface mount capacitor. I did an image search and found what resembles you have. That?s all I can offer. Good luck. 72, Rich Hurd / WC3T / DMR: 3142737 / SOC #1221 Grid: FN20is Bureaucracy is always in search of self-preservation. ? AA7BQ > On Jan 23, 2023, at 16:23, Dennis W1UE wrote: > > ?I dropped d a lock washer into the bowels of my K3 today, so had to invert > the unit to get the washer out of the unit. When I did so, the washer fell > out of the unit, but so did another component. Its a small rectangular > part, white on one side and blackish on the other, and either "3K3" or > "3R3" is stamped on it. I don't know where the part came from, or where it > should go back' I'm just sure it doesn't belong sitting on my bookshelf > rather than be in the radio. > > Can anyone maybe help me find where it should be going? I know its not an > easy > thing to diagnose, but any suggestions on where it should go before I try > taking > the radio apart
Re: [Elecraft] Elecraft Digest, Vol 225, Issue 9
There are very few reasons to have 3.3 Ohm resistor anywhere. It's much more likely to have a 3.3 K Ohm resistor. This it is likely labeled 3K3 not 3R3. There is a saying that if you hear hoof beats, think horses not zebras. Going with horses, you are looking in the schematics for a 3.3 K ohm resistor. One you find it (them, there may well be more than one), they will be designated as on a board and a number for that board, eg: R120 or something like that. Find those 3.3 K ohm resistors on the various boards (with board layouts) - missing? There you go. Since you report that the unit seems to be working for the things you do, it's possibly in a more obscure area of the circuitry. However I wouldn't be taking the thing apart for that, just look where you can. It's very possible that at some point someone just dropped a part in there. You didn't mention if you are the original owner. One aspect of "MARS Mod" on various transceivers is the removal of a resistor. Maybe someone had an oopsie ( I don't know if K3 require's this sort of mod, but - who knows? Also someone could have just dropped one into it by accident. So - don't take the thing apart in your quest unless you know what you are doing. W1GCF Geoff -Original Message- From: elecraft-boun...@mailman.qth.net [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of elecraft-requ...@mailman.qth.net Sent: Tuesday, January 24, 2023 12:42 PM To: elecraft@mailman.qth.net Subject: Elecraft Digest, Vol 225, Issue 9 Send Elecraft mailing list submissions to elecraft@mailman.qth.net 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 elecraft-requ...@mailman.qth.net You can reach the person managing the list at elecraft-ow...@mailman.qth.net When replying, please edit your Subject line so it is more specific than "Re: Contents of Elecraft digest..." Today's Topics: 1. Re: K3- Part fell out! (Fred Jensen) 2. Re: K3- Part fell out! (Rich WC3T) 3. Re: K3- Part fell out! (Chris Waldrup) 4. Re: K3- Part fell out! (Dave New) 5. Re: K3- Part fell out! (Dave New) 6. Re: arrl.net domain is being blocked! (Dave New) 7. Re: K3- Part fell out! (Geert Jan de Groot) 8. Re: arrl.net domain is being blocked! (Andrew Moore) 9. Re: arrl.net domain is being blocked! (Rick NK7I) 10. Re: arrl.net domain is being blocked! (Dave New, N8SBE) 11. Re: K3- Part fell out! (Lee Hiers) 12. Re: arrl.net domain is being blocked! (Rich WC3T) 13. Re: arrl.net domain is being blocked! (Dave New, N8SBE) 14. Re: arrl.net domain is being blocked! (Rich WC3T) 15. Y-Box For Sale (Dave) 16. Re: Keying the K3s (Jim McCook) 17. Re: arrl.net domain is being blocked! (Sam Carson) 18. Re: Keying the K3s (Lee Hiers) 19. Re: Keying the K3s (Jim McCook) 20. Re: Keying the K3s (Lee Hiers) 21. Re: Keying the K3s (Rick Bates, NK7I) 22. Re: Keying the K3s (Brian Hunt) -- Message: 1 Date: Mon, 23 Jan 2023 13:40:11 -0800 From: Fred Jensen To: Dennis W1UE Cc: Reflector Elecraft Subject: Re: [Elecraft] K3- Part fell out! Message-ID: <5fb4c25a-33c7-eb08-cdd6-30770aefc...@gmail.com> Content-Type: text/plain; charset=utf-8; format=flowed Does the radio still work?? If I find loose parts but the radio still works, I consider them to be spare parts. ?? Seriously, does it appear to be electronic in nature ... i.e. does it have terminals or solder points? 73, Fred ["Skip"] K6DGW Sparks NV DM09dn Washoe County Dennis W1UE wrote on 1/23/2023 1:21 PM: > I dropped d a lock washer into the bowels of my K3 today, so had to invert > the unit to get the washer out of the unit. When I did so, the washer fell > out of the unit, but so did another component. Its a small rectangular > part, white on one side and blackish on the other, and either "3K3" or > "3R3" is stamped on it. I don't know where the part came from, or where it > should go back' I'm just sure it doesn't belong sitting on my bookshelf > rather than be in the radio. > > Can anyone maybe help me find where it should be going? I know its not an > easy > thing to diagnose, but any suggestions on where it should go before I try > taking > the radio apart again. > > Dennis w1UE > __ > 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 tok6dg...@gmail.com -- This email has been checked for viruses by AVG antivirus software. www.avg.com -- Message: 2 Date: Mon, 23 Jan 2023 16:41:39 -0500 From: Rich WC3T To: Dennis W1UE Cc: Reflector
Re: [Elecraft] K3- Part fell out!
Dennis, the 3R3 SMD resistor may be R4 or R5 from the KPA3. Check it by measuring your maximum output power. These two resistors run very hot and can unsolder themselves from the upside down mounted KPA3 73s Steve PA2A Message: 23 Date: Mon, 23 Jan 2023 16:21:45 -0500 From: Dennis W1UE mailto:egan.denni...@gmail.com>To: Reflector Elecraft mailto:elecraft@mailman.qth.net> Subject: [Elecraft] K3- Part fell out! I dropped d a lock washer into the bowels of my K3 today, so had to invert the unit to get the washer out of the unit. When I did so, the washer fell out of the unit, but so did another component. Its a small rectangular part, white on one side and blackish on the other, and either "3K3" or "3R3" is stamped on it. I don't know where the part came from, or where it should go back' I'm just sure it doesn't belong sitting on my bookshelf rather than be in the radio. Can anyone maybe help me find where it should be going? I know its not an easy thing to diagnose, but any suggestions on where it should go before I try taking the radio apart again. Dennis w1UE __ 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] Keying the K3s
Running exactly at 5.0 watts or 50 watts setting CAN cause a change in the TX GAIN setting on a K3(s). That is the setting that can trigger the calibration algorithm; which if not connected to a dummy load, can be 'wrong' (causing problems). The K4 has a menu item to en/disable changes in this setting, the K3(s) does not. This is confirmed by Elecraft repair folks (on the groups.io list for the K3) and possibly here on qth.net. Running at 4.9/5.1 or 49/51 watts output is HIGHLY recommended if that is the output neighborhood that is wanted. Not every detail is in the manual (of which many updates have been made over the years) and not every firmware comment has been folded into the manual either. So you look at the firmware comments AND the latest manual(s); then the email list_*S*_ for a complete answer. 73, Rick nk7i On 1/24/2023 10:21 AM, j...@kk9a.com wrote: I do not believe that 5 and 50 watts cause issues on the K3S. I do not recall seeing this in th manual and I have never had an issue doing it. You can search Elecraft archives here: https://www.mail-archive.com/elecraft@mailman.qth.net/maillist.html John KK9A Lee Hiers AA4GA wrote: How would one search the archives for this info? Is this only the K3S, or does it also include K3? How about a K3/10? And you're saying one should never transmit with the transmitter set to 5W (or 50W)? I do drive an Alpha 8410 with my K3/10 - and I've probably done so at 5W out of the K3/10, although normally I'm using 12W. I would appreciate a link to something that indicates this is a bad thing to do. 73 de 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 torick.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 arch...@mail-archive.com
Re: [Elecraft] Keying the K3s
I do not believe that 5 and 50 watts cause issues on the K3S. I do not recall seeing this in th manual and I have never had an issue doing it. You can search Elecraft archives here: https://www.mail-archive.com/elecraft@mailman.qth.net/maillist.html John KK9A Lee Hiers AA4GA wrote: How would one search the archives for this info? Is this only the K3S, or does it also include K3? How about a K3/10? And you're saying one should never transmit with the transmitter set to 5W (or 50W)? I do drive an Alpha 8410 with my K3/10 - and I've probably done so at 5W out of the K3/10, although normally I'm using 12W. I would appreciate a link to something that indicates this is a bad thing to do. 73 de 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 to arch...@mail-archive.com
[Elecraft] K3- Part fell out! W1UE
Hi Dennis; What is your serial #? And please send me a picture of the part. I bet it is a feedback resistor on the KPA3, they run hot and fall off. We have upgraded beefier parts, shoot me an email when you pull the KPA3 and confirm (there are TWO of them close the Finals). The 3R3 resistor is flat and rectangle surface mount however, so I need a picture. Keith WE6R Elecraft K3/K4 Tech __ 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] Keying the K3s
I’d like clarification on this also. I don’t run an amp but I’ve run my K3 for years at 5 watts for QRP events without issue. My TUN PWR is set to 7 watts to keep my remote tuner and LPA happy. The manual states that to manually initiate a TX GAIN calibration to set TUN PWR to exactly 5 (or 50) watts and hold the TUNE button. I can imagine that accidentally doing so into an antenna rather than a 50 Ohm dummy load could really mess up the TX GAIN calibration. Thoughts? 73, Brian, K0DTJ > On Jan 24, 2023, at 09:20, Lee Hiers wrote: > > How would one search the archives for this info? > > Is this only the K3S, or does it also include K3? How about a K3/10? > > And you're saying one should never transmit with the transmitter set to 5W > (or 50W)? > > I do drive an Alpha 8410 with my K3/10 - and I've probably done so at 5W > out of the K3/10, although normally I'm using 12W. > > I would appreciate a link to something that indicates this is a bad thing > to do. > > 73 de Lee, AA4GA > > >> On Tue, Jan 24, 2023 at 10:57 AM Jim McCook wrote: >> >> Dave, >> >> You should _never_ key the K3s at 5w (or 50w)! It can disrupt the TX >> GAIN settings and create huge power spikes, which can be a real problem >> if you use an amplifier. Just use 6w or 4w or 5.5w, etc. You can >> confirm this with Elecraft, who will tell you the same thing. Check >> previous threads; it has been discussed before. 73, Jim W6YA >> __ >> 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 lee.hi...@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 huntin...@coastside.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] Keying the K3s
Here is one place (QTH.net is not the only Elecraft list): https://groups.io/g/Elecraft-K3/message/37177?p=%2C%2C%2C20%2C0%2C0%2C0%3A%3Acreated%2C0%2Ctx+gain%2C20%2C2%2C0%2C92585600 73, Rick nk7i On 1/24/2023 9:31 AM, Lee Hiers wrote: Searching what? The only archives I see are listed by month, with no place to enter a search - that's my search issue! 73 de Lee On Tue, Jan 24, 2023 at 12:26 PM Jim McCook wrote: Lee, just try searching with keywords, such as TX GAIN, K3 power spikes, TX GAIN Calibration, etc. etc. The best thing you can do, if you're not convinced transmitting at 5 or 50w is a risk, is ask Elecraft. K6XX, who designed the KPA1500, was the first to tell me about this. Keith, who services the K3 and K3s, confirmed it multiple times on this reflector. Ask someone at Elecraft.73,Jim __ 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 tolee.hi...@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 torick.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 arch...@mail-archive.com
Re: [Elecraft] Keying the K3s
Searching what? The only archives I see are listed by month, with no place to enter a search - that's my search issue! 73 de Lee On Tue, Jan 24, 2023 at 12:26 PM Jim McCook wrote: > Lee, just try searching with keywords, such as TX GAIN, K3 power spikes, > TX GAIN Calibration, etc. etc. The best thing you can do, if you're not > convinced transmitting at 5 or 50w is a risk, is ask Elecraft. K6XX, > who designed the KPA1500, was the first to tell me about this. Keith, > who services the K3 and K3s, confirmed it multiple times on this > reflector. Ask someone at Elecraft.73,Jim > __ > 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 lee.hi...@gmail.com __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] Keying the K3s
Lee, just try searching with keywords, such as TX GAIN, K3 power spikes, TX GAIN Calibration, etc. etc. The best thing you can do, if you're not convinced transmitting at 5 or 50w is a risk, is ask Elecraft. K6XX, who designed the KPA1500, was the first to tell me about this. Keith, who services the K3 and K3s, confirmed it multiple times on this reflector. Ask someone at Elecraft. 73,Jim __ 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] Keying the K3s
How would one search the archives for this info? Is this only the K3S, or does it also include K3? How about a K3/10? And you're saying one should never transmit with the transmitter set to 5W (or 50W)? I do drive an Alpha 8410 with my K3/10 - and I've probably done so at 5W out of the K3/10, although normally I'm using 12W. I would appreciate a link to something that indicates this is a bad thing to do. 73 de Lee, AA4GA On Tue, Jan 24, 2023 at 10:57 AM Jim McCook wrote: > Dave, > > You should _never_ key the K3s at 5w (or 50w)! It can disrupt the TX > GAIN settings and create huge power spikes, which can be a real problem > if you use an amplifier. Just use 6w or 4w or 5.5w, etc. You can > confirm this with Elecraft, who will tell you the same thing. Check > previous threads; it has been discussed before. 73, Jim W6YA > __ > 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 lee.hi...@gmail.com __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] arrl.net domain is being blocked!
ARRL implemented new computer system that changed some usernames (mine included) form their call sign to their email address. That results in the ARRL email redirector rejecting the mailto address. Call ARRL and get them involved. Their IT department had to fix mine. All well now. Sam K4SOC __ 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] Keying the K3s
Dave, You should _never_ key the K3s at 5w (or 50w)! It can disrupt the TX GAIN settings and create huge power spikes, which can be a real problem if you use an amplifier. Just use 6w or 4w or 5.5w, etc. You can confirm this with Elecraft, who will tell you the same thing. Check previous threads; it has been discussed before. 73, Jim W6YA __ 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] Y-Box For Sale
N6TV “Y-Box For Sale. Version 2.2. It’s never been used. Info at The Y-BOX by N6TV (kkn.net) No cables….See N6TV for your cable requirements. $80 shipped. Please respond off-list to n...@comcast.net. 73 - Dave N8AG Sent from Mail for Windows __ 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
