Re: [Elecraft] problem with K2, KAT100 and K2100PA combo
Found that out the hard way and fried a trace on the RF board. Fortunately, it was repairable. Unfortunately, it wasn't very easy. One of mine is now painted black [I'm colorblind]. If you have a K2/KPA100 combo, it's easy to get the amp off, I'd do it now. 73, Fred ["Skip"] K6DGW Sparks NV DM09dn Washoe County Jay Rutherford wrote on 7/12/2022 7:34 PM: Wayne, Years ago, on my 2000 K2, I discovered that it was possible to interchange the ATU plug to the main board with another one of the same size, with very bad results. I applied gold paint to one of the pair in the hopes of avoiding ever interchanging them by accident. So far, so good. 73 Jay K3BH On Tue, Jul 12, 2022, at 21:37, Wayne Burdick wrote: We've used APP connectors for over 20 years on Elecraft products. When properly assembled and inserted they're very reliable, not to mention intuitively color-coded. There is nothing covert about them. I may be slightly biased by my fear of starting over with something else, with the resulting incompatibilities, discontent, and non-deleted expletives. W On Jul 12, 2022, at 6:26 PM, Jay Rutherford wrote: Sorry to flog this poor horse once more. My XT90 AMASS connector failed due to not being completely inserted with the mate on a 52volt e-trike. It burned up one of the conductors inside the female plug. I have never had a failure of an Anderson powerpole in many years of using them. It is easy to see when they are not completely connected. Just to give a different perspective on the subject. 73, Jay K3BH On Tue, Jul 12, 2022, at 21:19, jerry wrote: I had a PowerPole fail on me once. Dirt or corrosion on the one flat contact. Once was enough. Back in the day, I had standardized on double banana plugs. In 50 years of ham radio, I NEVER had one fail on me in any way. Only trouble with the double bananas is they're not keyed for polarity. I was always *very* careful about that. As a electronic bench tech back in the 70's, I had a lot of experience with test sets and connectors enduring thousands of cycles. The very best - most reliable - connectors all had a round pin in a round hole. All hail Augat machine sockets! The AMASS connectors feature a round pin that plugs into a round hole. It has just the right spring tension. They are polarized - you can't plug them in backwards. They are popular with the RC drone crowd, but are also making it into other equipment. I am using AMASS XT90 connectors on my kilowatt LDMOS linear project. - Jerry, KF6VB __ 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. https://www.avg.com __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] problem with K2, KAT100 and K2100PA combo
I’m with Jim on this one. I particularly like that they are hermaphroditic, so I can not worry about which end is providing the current. Helps with battery charging for example. The only failures I have had is when the metal “pins” are not fully inserted in the shell. (The curve at the end of the pin needs to go completely over the spring in the shell.) If not fully inserted, the connectors don’t firmly connect and become unreliable. They also disconnect easily. I can imagine that if you hot plug them enough, you can erode the connectors from the DC arc, producing unreliability. Note that the manufacturer specifically says not to hot plug them. 73 Bill AE6JV > On Jul 12, 2022, at 20:13:32, Jim Brown wrote: > > On 7/12/2022 4:44 PM, jerry wrote: >> I personally do NOT like Anderson PowerPoles; I don't understand what people >> see in them. One flat contact that slip-connects to >> another flat contact. I have not found them to be reliable. > > I love them, use them extensively inside the shack and on all low-voltage DC. > I began standardizing on them with my first K2, almost 20 years ago. > __ 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] problem with K2, KAT100 and K2100PA combo
On 7/12/2022 6:06 PM, Andrew Moore wrote: AMASS connectors are far superior Superior for what? banana plugs are better Better for what? Great questions, Andrew. Banana plugs are certainly not better for power. And not when panel real estate is limited. 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 Message delivered to arch...@mail-archive.com
Re: [Elecraft] problem with K2, KAT100 and K2100PA combo
Wayne, Years ago, on my 2000 K2, I discovered that it was possible to interchange the ATU plug to the main board with another one of the same size, with very bad results. I applied gold paint to one of the pair in the hopes of avoiding ever interchanging them by accident. So far, so good. 73 Jay K3BH On Tue, Jul 12, 2022, at 21:37, Wayne Burdick wrote: > We've used APP connectors for over 20 years on Elecraft products. When > properly assembled and inserted they're very reliable, not to mention > intuitively color-coded. There is nothing covert about them. > > I may be slightly biased by my fear of starting over with something > else, with the resulting incompatibilities, discontent, and non-deleted > expletives. > > W > > >> On Jul 12, 2022, at 6:26 PM, Jay Rutherford wrote: >> >> Sorry to flog this poor horse once more. My XT90 AMASS connector failed due >> to not being completely inserted with the mate on a 52volt e-trike. It >> burned up one of the conductors inside the female plug. >> >> I have never had a failure of an Anderson powerpole in many years of using >> them. It is easy to see when they are not completely connected. >> >> Just to give a different perspective on the subject. >> >> 73, >> Jay K3BH >> >> On Tue, Jul 12, 2022, at 21:19, jerry wrote: >>> I had a PowerPole fail on me once. Dirt or corrosion on the one flat >>> contact. >>> Once was enough. Back in the day, I had standardized on double banana >>> plugs. In 50 years of ham radio, I NEVER had one fail on me in any way. >>> Only trouble with the double bananas is they're not keyed for polarity. >>> I was always *very* careful about that. >>> >>> As a electronic bench tech back in the 70's, I had a lot of experience >>> with test sets and connectors enduring thousands of cycles. The very >>> best - most reliable - connectors all had a round pin in a round hole. >>> All hail Augat machine sockets! >>> >>> The AMASS connectors feature a round pin that plugs into a round hole. >>> It has just the right spring tension. They are polarized - you can't >>> plug them in backwards. They are popular with the RC drone crowd, but >>> are also making it into other equipment. >>> >>>I am using AMASS XT90 connectors on my kilowatt LDMOS linear project. >>> >>> - Jerry, KF6VB __ 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] problem with K2, KAT100 and K2100PA combo
"not to mention intuitively color-coded" "Intuitively" may work for most, not so much for those of us males whose color vision is seriously compromised. I can tell the difference between the black side and the not-black side if I see them together which is almost always... electrically, I've never had problems with APP's They're all over the shack. All website designers should try rendering their pages in monochrome before publishing them in full color. You might be surprised. NASA could do it for the James West site ... might really be surprised, very hard to read for me. 73, Fred ["Skip"] K6DGW Sparks NV DM09dn Washoe County Wayne Burdick wrote on 7/12/2022 6:37 PM: We've used APP connectors for over 20 years on Elecraft products. When properly assembled and inserted they're very reliable, not to mention intuitively color-coded. There is nothing covert about them. I may be slightly biased by my fear of starting over with something else, with the resulting incompatibilities, discontent, and non-deleted expletives. W -- This email has been checked for viruses by AVG. https://www.avg.com __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] problem with K2, KAT100 and K2100PA combo
We've used APP connectors for over 20 years on Elecraft products. When properly assembled and inserted they're very reliable, not to mention intuitively color-coded. There is nothing covert about them. I may be slightly biased by my fear of starting over with something else, with the resulting incompatibilities, discontent, and non-deleted expletives. W > On Jul 12, 2022, at 6:26 PM, Jay Rutherford wrote: > > Sorry to flog this poor horse once more. My XT90 AMASS connector failed due > to not being completely inserted with the mate on a 52volt e-trike. It burned > up one of the conductors inside the female plug. > > I have never had a failure of an Anderson powerpole in many years of using > them. It is easy to see when they are not completely connected. > > Just to give a different perspective on the subject. > > 73, > Jay K3BH > > On Tue, Jul 12, 2022, at 21:19, jerry wrote: >> I had a PowerPole fail on me once. Dirt or corrosion on the one flat >> contact. >> Once was enough. Back in the day, I had standardized on double banana >> plugs. In 50 years of ham radio, I NEVER had one fail on me in any way. >> Only trouble with the double bananas is they're not keyed for polarity. >> I was always *very* careful about that. >> >> As a electronic bench tech back in the 70's, I had a lot of experience >> with test sets and connectors enduring thousands of cycles. The very >> best - most reliable - connectors all had a round pin in a round hole. >> All hail Augat machine sockets! >> >> The AMASS connectors feature a round pin that plugs into a round hole. >> It has just the right spring tension. They are polarized - you can't >> plug them in backwards. They are popular with the RC drone crowd, but >> are also making it into other equipment. >> >>I am using AMASS XT90 connectors on my kilowatt LDMOS linear project. >> >> - Jerry, KF6VB >> >> >> >> On 2022-07-12 18:06, Andrew Moore wrote: I have not found them to be reliable >>> >>> Just curious - can you elaborate and quantify? Bad solder joints? >>> AMASS connectors are far superior >>> >>> Superior for what? >> *** Superior for always connecting. >> >>> banana plugs are better >>> >>> Better for what? >> >> *** Same better. >>> >>> Thanks & 73, >>> -Andrew NV1B >>> >>> >>> >>> >>> On Tue, Jul 12, 2022 at 7:46 PM jerry wrote: >>> On 2022-07-12 15:09, brianpepperdine brianpepperdine wrote: > HI. Well this is weird > It appears that the Anderson power power cable failed *** No surprise there. I personally do NOT like Anderson PowerPoles; I don't understand what people see in them. One flat contact that slip-connects to another flat contact. I have not found them to be reliable. AMASS connectors are far superior. These have a round pin that goes in a round hole. Heck, even banana plugs are better. - Jerry, KF6VB __ 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 andrew.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 je...@tr2.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 k...@arrl.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 n...@elecraft.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] problem with K2, KAT100 and K2100PA combo
Sorry to flog this poor horse once more. My XT90 AMASS connector failed due to not being completely inserted with the mate on a 52volt e-trike. It burned up one of the conductors inside the female plug. I have never had a failure of an Anderson powerpole in many years of using them. It is easy to see when they are not completely connected. Just to give a different perspective on the subject. 73, Jay K3BH On Tue, Jul 12, 2022, at 21:19, jerry wrote: > I had a PowerPole fail on me once. Dirt or corrosion on the one flat > contact. > Once was enough. Back in the day, I had standardized on double banana > plugs. In 50 years of ham radio, I NEVER had one fail on me in any way. > Only trouble with the double bananas is they're not keyed for polarity. > I was always *very* careful about that. > >As a electronic bench tech back in the 70's, I had a lot of experience > with test sets and connectors enduring thousands of cycles. The very > best - most reliable - connectors all had a round pin in a round hole. > All hail Augat machine sockets! > >The AMASS connectors feature a round pin that plugs into a round hole. > It has just the right spring tension. They are polarized - you can't > plug them in backwards. They are popular with the RC drone crowd, but > are also making it into other equipment. > > I am using AMASS XT90 connectors on my kilowatt LDMOS linear project. > > - Jerry, KF6VB > > > > On 2022-07-12 18:06, Andrew Moore wrote: >>> I have not found them to be reliable >> >> Just curious - can you elaborate and quantify? Bad solder joints? >> >>> AMASS connectors are far superior >> >> Superior for what? > *** Superior for always connecting. > >> >>> banana plugs are better >> >> Better for what? > > *** Same better. >> >> Thanks & 73, >> -Andrew NV1B >> >> >> >> >> On Tue, Jul 12, 2022 at 7:46 PM jerry wrote: >> >>> On 2022-07-12 15:09, brianpepperdine brianpepperdine wrote: >>> > HI. Well this is weird >>> > It appears that the Anderson power power cable failed >>> >>> *** No surprise there. I personally do NOT like Anderson PowerPoles; >>> I >>> don't understand what people see in them. One flat contact that >>> slip-connects to >>> another flat contact. I have not found them to be reliable. >>> >>> AMASS connectors are far superior. These have a round pin that >>> goes >>> in a round hole. Heck, even banana plugs are better. >>> >>> - Jerry, KF6VB >>> __ >>> 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 andrew.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 je...@tr2.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 k...@arrl.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] problem with K2, KAT100 and K2100PA combo
I had a PowerPole fail on me once. Dirt or corrosion on the one flat contact. Once was enough. Back in the day, I had standardized on double banana plugs. In 50 years of ham radio, I NEVER had one fail on me in any way. Only trouble with the double bananas is they're not keyed for polarity. I was always *very* careful about that. As a electronic bench tech back in the 70's, I had a lot of experience with test sets and connectors enduring thousands of cycles. The very best - most reliable - connectors all had a round pin in a round hole. All hail Augat machine sockets! The AMASS connectors feature a round pin that plugs into a round hole. It has just the right spring tension. They are polarized - you can't plug them in backwards. They are popular with the RC drone crowd, but are also making it into other equipment. I am using AMASS XT90 connectors on my kilowatt LDMOS linear project. - Jerry, KF6VB On 2022-07-12 18:06, Andrew Moore wrote: I have not found them to be reliable Just curious - can you elaborate and quantify? Bad solder joints? AMASS connectors are far superior Superior for what? *** Superior for always connecting. banana plugs are better Better for what? *** Same better. Thanks & 73, -Andrew NV1B On Tue, Jul 12, 2022 at 7:46 PM jerry wrote: On 2022-07-12 15:09, brianpepperdine brianpepperdine wrote: > HI. Well this is weird > It appears that the Anderson power power cable failed *** No surprise there. I personally do NOT like Anderson PowerPoles; I don't understand what people see in them. One flat contact that slip-connects to another flat contact. I have not found them to be reliable. AMASS connectors are far superior. These have a round pin that goes in a round hole. Heck, even banana plugs are better. - Jerry, KF6VB __ 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 andrew.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 je...@tr2.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] problem with K2, KAT100 and K2100PA combo
> I have not found them to be reliable Just curious - can you elaborate and quantify? Bad solder joints? > AMASS connectors are far superior Superior for what? > banana plugs are better Better for what? Thanks & 73, -Andrew NV1B On Tue, Jul 12, 2022 at 7:46 PM jerry wrote: > On 2022-07-12 15:09, brianpepperdine brianpepperdine wrote: > > HI. Well this is weird > > It appears that the Anderson power power cable failed > > *** No surprise there. I personally do NOT like Anderson PowerPoles; I > don't understand what people see in them. One flat contact that > slip-connects to > another flat contact. I have not found them to be reliable. > > AMASS connectors are far superior. These have a round pin that goes > in a round hole. Heck, even banana plugs are better. > > - Jerry, KF6VB > __ > 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 andrew.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] problem with K2, KAT100 and K2100PA combo
On 7/12/2022 4:44 PM, jerry wrote: I personally do NOT like Anderson PowerPoles; I don't understand what people see in them. One flat contact that slip-connects to another flat contact. I have not found them to be reliable. I love them, use them extensively inside the shack and on all low-voltage DC. I began standardizing on them with my first K2, almost 20 years ago. 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 Message delivered to arch...@mail-archive.com
Re: [Elecraft] problem with K2, KAT100 and K2100PA combo
Occam's Razor comes to mind - forget all that diagnostic stuff I pumped out earlier! Glad you found the true cause, the simple true cause, Brian. 73, Mike, K8CN __ 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] problem with K2, KAT100 and K2100PA combo
On 2022-07-12 15:09, brianpepperdine brianpepperdine wrote: HI. Well this is weird It appears that the Anderson power power cable failed *** No surprise there. I personally do NOT like Anderson PowerPoles; I don't understand what people see in them. One flat contact that slip-connects to another flat contact. I have not found them to be reliable. AMASS connectors are far superior. These have a round pin that goes in a round hole. Heck, even banana plugs are better. - Jerry, KF6VB __ 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] problem with K2, KAT100 and K2100PA combo
Hi Brian, Could you give a bit more detail? You said the 'power went off on the K2' after attempting to auto-tune the KAT100. Do you mean the DC power went dark on the K2 and the screen display went blank, or something else? Have you tried to auto-tune the KAT100 at the low power level (set K2 Power control less than 10 watts to yield 2 watt for KAT100 tune)? Have you tried connecting the KAT100 to a good 50 ohm dummy load and doing auto-tune at low and high power? Does the K2 still 'talk' to the KPA100, i.e. can you access the KPA100 menus? If so, are there any Error/Status codes displayed in the PA menu? Can you set the KAT100 to 'bypass' mode and still get low power to a dummy load on the KAT100? The fact that the 12 VDC via the PowerPoles doesn't reach the base K2 suggests that diode D9 has opened. It is also possible that a collector-base short in one of the PA transistors is pulling down the 12V line. This begs the question: what are you using for the DC power supply? Although I have my KPA100 and KAT100 outboard of my K2, I have observed situations where the KAT100 fails to continue searching for a match if the impedance seen at its output is a very bad mismatch (high SWR). In virtually all of those instances I can get the KAT100 to properly auto-tune by reducing the K2's Power control to less than 10 watts (but more than 2 watts). If you have an ohmmeter/multimeter, you can check the resistance between the PowerPoles with the 12 V power supply disconnected at the PowerPoles AND at the coaxial DC input. That resistance should be high - if not, one of the PA transistors may have shorted through. Don't forget that the KPA100 manual has troubleshooting procedures and much more detail than I've given here - see page 66 of the manual. 73, Mike, K8CN __ 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] problem with K2, KAT100 and K2100PA combo
HI. Well this is weird It appears that the Anderson power power cable failed when I went to put it back on the K3 (where it usually is for my main rig) the K3 would not power up!! Measured no voltage at the rig end of the cable. Voltage was OK at power supply output terminals. I put on the spare cable I had for power for my other rig (not here right now.. its at another QTH) and the K3 powered up fine. I put the able onto the K2 combo and it all lights up A-OK. Dunno... have to look at that cable but I guess it is now dead and needs new Powerpole connectors. H. So much for trusting hardware that has been in use for years. tnx Brian VE3HI -- Original Message -- From: brianpepperd...@sympatico.ca To: elecraft@mailman.qth.net Sent: Tuesday, July 12, 2022 4:07 PM Subject: problem with K2, KAT100 and K2100PA combo Due to circumstances, I have a bit of time on my hands.. so I had elected to go thru my rigs here re. possible hamfests or private sales. First thing I decided to look at was my K2 with the amp integrated into it and the separate KAT100 tuner connected outboard. Things seemed fine overall and then I tried to auto-tune on 17m band It started to tune and then the power went off on the K2. I think the PA tunes at the 20 watt level (true?) so it should (?) have folded back to 20 watts for a 90 watt output setting on the K2 re. any high SWR encountered...yes? In any case, the K2 WILL run when on 12 vdc power fed to the regular coax plug feed, but not with the K2 on the regular Anderson powerpole input required for QRO operation alongside the KAT100 with its 12 vdc feed. Any ideas what to look for in this situation? And... I admit I ignored the warning in this case and did NOT use a 20 amp fuse in the power line to the K2... but it does still run at a QRP level with the regular DC supply. Brian Pepperdine VE3HI VE3VAW __ 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] problem with K2, KAT100 and K2100PA combo
Due to circumstances, I have a bit of time on my hands.. so I had elected to go thru my rigs here re. possible hamfests or private sales. First thing I decided to look at was my K2 with the amp integrated into it and the separate KAT100 tuner connected outboard. Things seemed fine overall and then I tried to auto-tune on 17m band It started to tune and then the power went off on the K2. I think the PA tunes at the 20 watt level (true?) so it should (?) have folded back to 20 watts for a 90 watt output setting on the K2 re. any high SWR encountered...yes? In any case, the K2 WILL run when on 12 vdc power fed to the regular coax plug feed, but not with the K2 on the regular Anderson powerpole input required for QRO operation alongside the KAT100 with its 12 vdc feed. Any ideas what to look for in this situation? And... I admit I ignored the warning in this case and did NOT use a 20 amp fuse in the power line to the K2... but it does still run at a QRP level with the regular DC supply. Brian Pepperdine VE3HI VE3VAW __ 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
