Re: [Elecraft] Killed the KPA500 :)
Knowing what I did while transmitting at 100 watts of msk144, I’m surprised the damage isn’t worse. The protection circuits did the best they could of. If you own any amp, you always need to be aware of the risk. I would never rely on the automation to 100% protected any amp. If you are worried about your amplifier and anyway I highly recommend you have checklist handy every time you turn it on and change Bands. Never depend on the protection circuits. I know I’m preaching to the choir too many people, however it is imperative you understand exactly how your amp works, how it’s wired, and how it interfaces with any HF radio. Mike va3mw Sent from my iPad > On Nov 19, 2018, at 6:45 PM, ANDY DURBIN wrote: > > "The support team at Elecraft got back to me and the required parts to repair > the board are on the way. Nice job guys." > > > But the question remains - Why didn't the designed-in protections work? This > new KPA500 owner would appreciate an answer from Elecraft. > > > 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 va...@portcredit.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] Killed the KPA500 :)
"The support team at Elecraft got back to me and the required parts to repair the board are on the way. Nice job guys." But the question remains - Why didn't the designed-in protections work? This new KPA500 owner would appreciate an answer from Elecraft. 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
Re: [Elecraft] Killed the KPA500 :)
This still confirms the KPA500 is a darn near bullet proof amplifier. And likewise from the company, excellent support. Glad the issue was only minimal damage. 73 Bob, K4TAX On 11/19/2018 4:30 PM, Michael Walker wrote: Just an update on the repair Turns out that the first part of the 6M LPF took the hit on the amp resulting in a CAP or 2 vapourizing. AKA - phasers set to kill. This required no special electronic skills to find. You could see it and smell it. The support team at Elecraft got back to me and the required parts to repair the board are on the way. Nice job guys. Mike va3mw __ 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] Killed the KPA500 :)
Just an update on the repair Turns out that the first part of the 6M LPF took the hit on the amp resulting in a CAP or 2 vapourizing. AKA - phasers set to kill. This required no special electronic skills to find. You could see it and smell it. The support team at Elecraft got back to me and the required parts to repair the board are on the way. Nice job guys. Mike va3mw __ 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] Killed the KPA500 :)
See page 19 of the KPA500 manual. The menu setting for this parameter is there. Lu - W4LT > -Original Message- > From: Nr4c [mailto:n...@widomaker.com] > Sent: Friday, November 16, 2018 8:16 PM > To: lromer...@tampabay.rr.com > Cc: elecraft@mailman.qth.net > Subject: Re: [Elecraft] Killed the KPA500 :) > > Mine has never started up in ‘Operate’ mode. Could it be a setting you > imposed? > > Sent from my iPhone > ...nr4c. bill > > > > On Nov 16, 2018, at 2:19 PM, Luis V. Romero > wrote: > > > > Michael: > > > > The KPA500 defaults to power up in STANDBY but is programmable to > power up > > in OPERATE mode. Someone must have changed yours. > > > > The KPA500 can also be programmed to switch to standby on band > changes. It > > defaults to selecting STANDBY or OPERATE per the last band change. > > > > When connected to a K3 using the KPAUX cables, the amplifier and the > radio > > communicate and the radio will reduce power when you switch the amp to > > OPERATE. > > > > I run mine in Power up: STANDBY, Band change: Switch to STANDBY. Its > harder > > to do stupid things in this configuration. I'd rather accidentally transmit > > at 100w than blow the amp up. Also, my KAT500 tuner can auto bypass the > amp > > if the SWR reaches 2.5:1 threshold to protect the amp. This is also > > programmable. > > > > The menu settings for all of this are in the KPA500 Operations Manual on > > page 19. BTW, there is no T/R relay to click in the amp. It uses PIN Diode > > T/R switching. When you key the amp, and if you have it connected to the > > same PTT as the radio, you should see an asterisk (*) in the LCD window > that > > tells you the amp is "keyed". > > > > You may have blown up the input attenuator. Or the RF deck. Or both. As a > > machine I used to work with said when its power supply was overheating: > "$$$ > > UP IN SMOKE!". > > > > 73 > > > > Lu Romero - W4LT > > > > > > > > > > From: Michael Walker > > To: Andy Durbin > > Cc: "Elecraft@mailman.qth.net" > > Subject: Re: [Elecraft] Killed the KPA500 :) > > Message-ID: > > qyf8se...@mail.gmail.com> > > Content-Type: text/plain; charset="UTF-8" > > > > I have the schematics, as someone was kind enough to send them to me. > > > > Yes, I forgot the KPA500 powers up in Operate. It is the only Amp I own > > that does this. > > > > I will mention it to Elecraft when I chat with them later today and suggest > > the default should be the other way around. > > > > Mike va3mw > > > > > > > > > > > > > __ > > > 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...@widomaker.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] Killed the KPA500 :)
Read above... On Fri, Nov 16, 2018 at 8:17 PM Nr4c wrote: > Mine has never started up in ‘Operate’ mode. Could it be a setting you > imposed? > > Sent from my iPhone > ...nr4c. bill > > > > On Nov 16, 2018, at 2:19 PM, Luis V. Romero > wrote: > > > > Michael: > > > > The KPA500 defaults to power up in STANDBY but is programmable to power > up > > in OPERATE mode. Someone must have changed yours. > > > > The KPA500 can also be programmed to switch to standby on band changes. > It > > defaults to selecting STANDBY or OPERATE per the last band change. > > > > When connected to a K3 using the KPAUX cables, the amplifier and the > radio > > communicate and the radio will reduce power when you switch the amp to > > OPERATE. > > > > I run mine in Power up: STANDBY, Band change: Switch to STANDBY. Its > harder > > to do stupid things in this configuration. I'd rather accidentally > transmit > > at 100w than blow the amp up. Also, my KAT500 tuner can auto bypass the > amp > > if the SWR reaches 2.5:1 threshold to protect the amp. This is also > > programmable. > > > > The menu settings for all of this are in the KPA500 Operations Manual on > > page 19. BTW, there is no T/R relay to click in the amp. It uses PIN > Diode > > T/R switching. When you key the amp, and if you have it connected to the > > same PTT as the radio, you should see an asterisk (*) in the LCD window > that > > tells you the amp is "keyed". > > > > You may have blown up the input attenuator. Or the RF deck. Or both. As a > > machine I used to work with said when its power supply was overheating: > "$$$ > > UP IN SMOKE!". > > > > 73 > > > > Lu Romero - W4LT > > > > > > > > > > From: Michael Walker > > To: Andy Durbin > > Cc: "Elecraft@mailman.qth.net" > > Subject: Re: [Elecraft] Killed the KPA500 :) > > Message-ID: > > > > Content-Type: text/plain; charset="UTF-8" > > > > I have the schematics, as someone was kind enough to send them to me. > > > > Yes, I forgot the KPA500 powers up in Operate. It is the only Amp I own > > that does this. > > > > I will mention it to Elecraft when I chat with them later today and > suggest > > the default should be the other way around. > > > > Mike va3mw > > > > > > > > > > > > __ > > 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...@widomaker.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 va...@portcredit.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] Killed the KPA500 :)
Mine has never started up in ‘Operate’ mode. Could it be a setting you imposed? Sent from my iPhone ...nr4c. bill > On Nov 16, 2018, at 2:19 PM, Luis V. Romero wrote: > > Michael: > > The KPA500 defaults to power up in STANDBY but is programmable to power up > in OPERATE mode. Someone must have changed yours. > > The KPA500 can also be programmed to switch to standby on band changes. It > defaults to selecting STANDBY or OPERATE per the last band change. > > When connected to a K3 using the KPAUX cables, the amplifier and the radio > communicate and the radio will reduce power when you switch the amp to > OPERATE. > > I run mine in Power up: STANDBY, Band change: Switch to STANDBY. Its harder > to do stupid things in this configuration. I'd rather accidentally transmit > at 100w than blow the amp up. Also, my KAT500 tuner can auto bypass the amp > if the SWR reaches 2.5:1 threshold to protect the amp. This is also > programmable. > > The menu settings for all of this are in the KPA500 Operations Manual on > page 19. BTW, there is no T/R relay to click in the amp. It uses PIN Diode > T/R switching. When you key the amp, and if you have it connected to the > same PTT as the radio, you should see an asterisk (*) in the LCD window that > tells you the amp is "keyed". > > You may have blown up the input attenuator. Or the RF deck. Or both. As a > machine I used to work with said when its power supply was overheating: "$$$ > UP IN SMOKE!". > > 73 > > Lu Romero - W4LT > > > > > From: Michael Walker > To: Andy Durbin > Cc: "Elecraft@mailman.qth.net" > Subject: Re: [Elecraft] Killed the KPA500 :) > Message-ID: > > Content-Type: text/plain; charset="UTF-8" > > I have the schematics, as someone was kind enough to send them to me. > > Yes, I forgot the KPA500 powers up in Operate. It is the only Amp I own > that does this. > > I will mention it to Elecraft when I chat with them later today and suggest > the default should be the other way around. > > Mike va3mw > > > > > > __ > 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...@widomaker.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] Killed the KPA500 :)
Mike; If you haven’t done so already, please call the customer support guys down in Watsonville. They should be able to help you with the situation. They may ask for a fault log from your KPA500 - if so please provide it. I will try to quickly turn around the analysis that I do each time one of these is requested. The KPA500 does have many protections for bad conditions. As others have stated, the KPA defaults to Standby at power on, but may be set to switch over to OPER mode shortly after power-up with a menu setting. This can be saved using the menu item: PWR-ON. That default value for that setting is STBY. When the KPA detects input power over 50 watts we will insert a 3db attenuator and continue operating. At this point the FAULT LED will be blinking to alert you as to the condition that needs correction. If the input power is over 60 watts for more than one half second or over 50 watts for 5 seconds we will go to a fault condition. If the input power is over 75 watts the KPA will immediately go to a fault condition. The KPA500 has a lot of checks and processes to correct problem situations. Excess power over an extended period or happening many times can damage the input network and lead to amplifier failures. As with any amplifier, avoiding that situation is always a good thing, and assures use of the amplifier for years to come. Let’s see what we can do to get you back on the air quickly. Again, please give customer support a call so we can get that going. 73, Jack, W6FB Elecraft Engineering > On Nov 16, 2018, at 6:58 AM, Michael Walker wrote: > > Sorry > > I don't use a K3 and it was a mistake in my in head checklist. > > Mike va3mw > > On Fri, Nov 16, 2018 at 9:56 AM Bob McGraw K4TAX > wrote: > >> You can configure the amp via the MENU to power up in the stand-by mode. >> Also have it go to stand-by when changing bands. >> >> You should have the amp connected to the K3 via the multi conductor cable >> and not use the amp key cable. >> >> The amp follows the radio and none of this will happen. >> >> Bob, K4TAX >> >> >> Sent from my iPhone >> >>> On Nov 16, 2018, at 7:52 AM, Michael Walker >> wrote: >>> >>> I have the schematics, as someone was kind enough to send them to me. >>> >>> Yes, I forgot the KPA500 powers up in Operate. It is the only Amp I own >>> that does this. >>> >>> I will mention it to Elecraft when I chat with them later today and >> suggest >>> the default should be the other way around. >>> >>> Mike va3mw >>> >>> On Fri, Nov 16, 2018 at 8:27 AM ANDY DURBIN wrote: "The unit was powered on and it came up in operate mode while the HF >> radio was in TX at 100w on 6M. End result is that the magic smoke got out. :)" I suspect this is a very common mistake for ops who sometimes use the >> amp and sometimes operate barefoot. I thought the KPA500 was designed to protect against that user error. Seems I was wrong. Suggest you contact support for schematics. Unless their policy has changed recently they will provide them to you. 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 va...@portcredit.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 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 jackbrin...@me.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] Killed the KPA500 :)
Michael: The KPA500 defaults to power up in STANDBY but is programmable to power up in OPERATE mode. Someone must have changed yours. The KPA500 can also be programmed to switch to standby on band changes. It defaults to selecting STANDBY or OPERATE per the last band change. When connected to a K3 using the KPAUX cables, the amplifier and the radio communicate and the radio will reduce power when you switch the amp to OPERATE. I run mine in Power up: STANDBY, Band change: Switch to STANDBY. Its harder to do stupid things in this configuration. I'd rather accidentally transmit at 100w than blow the amp up. Also, my KAT500 tuner can auto bypass the amp if the SWR reaches 2.5:1 threshold to protect the amp. This is also programmable. The menu settings for all of this are in the KPA500 Operations Manual on page 19. BTW, there is no T/R relay to click in the amp. It uses PIN Diode T/R switching. When you key the amp, and if you have it connected to the same PTT as the radio, you should see an asterisk (*) in the LCD window that tells you the amp is "keyed". You may have blown up the input attenuator. Or the RF deck. Or both. As a machine I used to work with said when its power supply was overheating: "$$$ UP IN SMOKE!". 73 Lu Romero - W4LT From: Michael Walker To: Andy Durbin Cc: "Elecraft@mailman.qth.net" Subject: Re: [Elecraft] Killed the KPA500 :) Message-ID: Content-Type: text/plain; charset="UTF-8" I have the schematics, as someone was kind enough to send them to me. Yes, I forgot the KPA500 powers up in Operate. It is the only Amp I own that does this. I will mention it to Elecraft when I chat with them later today and suggest the default should be the other way around. Mike va3mw __ 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] Killed the KPA500 :)
" I thought the KPA500 was designed to protect against that user error. Seems I was wrong. " According to the KPA500 Owner's Manual the KPA500 should react to excessive drive by first switching in the attenuator and, if that is not sufficient drive reduction, issuing hard fault 06 and dropping to STBY. Why was this KPA500 not protected? Are all KPA500 at risk of damage if driven with 100W? Will Elecraft be reviewing the fault log to see what went wrong? My standard procedure would prevent ever driving with excessive power. (Change bands, drop to STBY, send 5 W tune signal, read LP100A SWR, check TS-590 power setting, if power correct and SWR ok then select OPER). However, I know I'm fallible and it is a design goal that my TS-590 <> Elecraft interface will fully automate this sequence. 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
Re: [Elecraft] Killed the KPA500 :)
My KPA500 is configured to power on in STANDBY, but it stays in OPERATE On Fri, Nov 16, 2018 at 9:57 AM Bob McGraw K4TAX wrote: > You can configure the amp via the MENU to power up in the stand-by mode. > Also have it go to stand-by when changing bands. > > You should have the amp connected to the K3 via the multi conductor cable > and not use the amp key cable. > > The amp follows the radio and none of this will happen. > > Bob, K4TAX > > > Sent from my iPhone > > > On Nov 16, 2018, at 7:52 AM, Michael Walker > wrote: > > > > I have the schematics, as someone was kind enough to send them to me. > > > > Yes, I forgot the KPA500 powers up in Operate. It is the only Amp I own > > that does this. > > > > I will mention it to Elecraft when I chat with them later today and > suggest > > the default should be the other way around. > > > > Mike va3mw > > > > > >> On Fri, Nov 16, 2018 at 8:27 AM ANDY DURBIN wrote: > >> > >> "The unit was powered on and it came up in operate mode while the HF > radio > >> was in TX at 100w on 6M. End result is that the magic smoke got out. :)" > >> > >> > >> I suspect this is a very common mistake for ops who sometimes use the > amp > >> and sometimes operate barefoot. I thought the KPA500 was designed to > >> protect against that user error. Seems I was wrong. > >> > >> > >> Suggest you contact support for schematics. Unless their policy has > >> changed recently they will provide them to you. > >> > >> > >> 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 va...@portcredit.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 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 dpbu...@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] Killed the KPA500 :)
now for the rest of my message: It stays in OPERATE when I change bands. I would like for it to revert to STANDBY when I change bands, but can't find how to configure it to behave that way. I welcome the information on how to do so. Thanks, Dave - K9FN On Fri, Nov 16, 2018 at 10:08 AM David Bunte wrote: > My KPA500 is configured to power on in STANDBY, but it stays in OPERATE > > On Fri, Nov 16, 2018 at 9:57 AM Bob McGraw K4TAX > wrote: > >> You can configure the amp via the MENU to power up in the stand-by mode. >> Also have it go to stand-by when changing bands. >> >> You should have the amp connected to the K3 via the multi conductor cable >> and not use the amp key cable. >> >> The amp follows the radio and none of this will happen. >> >> Bob, K4TAX >> >> >> Sent from my iPhone >> >> > On Nov 16, 2018, at 7:52 AM, Michael Walker >> wrote: >> > >> > I have the schematics, as someone was kind enough to send them to me. >> > >> > Yes, I forgot the KPA500 powers up in Operate. It is the only Amp I own >> > that does this. >> > >> > I will mention it to Elecraft when I chat with them later today and >> suggest >> > the default should be the other way around. >> > >> > Mike va3mw >> > >> > >> >> On Fri, Nov 16, 2018 at 8:27 AM ANDY DURBIN wrote: >> >> >> >> "The unit was powered on and it came up in operate mode while the HF >> radio >> >> was in TX at 100w on 6M. End result is that the magic smoke got out. >> :)" >> >> >> >> >> >> I suspect this is a very common mistake for ops who sometimes use the >> amp >> >> and sometimes operate barefoot. I thought the KPA500 was designed to >> >> protect against that user error. Seems I was wrong. >> >> >> >> >> >> Suggest you contact support for schematics. Unless their policy has >> >> changed recently they will provide them to you. >> >> >> >> >> >> 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 va...@portcredit.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 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 dpbu...@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] Killed the KPA500 :)
See manual page 19 PWR ON Also BAND CHG is the other parameter. Good luck with the repairs. Bob, K4TAX Sent from my iPhone > On Nov 16, 2018, at 8:56 AM, Michael Walker wrote: > > Thanks all > > I'll check the menu. I certainly don't remember it being there, but I will > have a 2nd look once I reassemble it and remove the smoked parts. > > I have the schematics now. > > Thanks, Mike va3mw > > >> On Fri, Nov 16, 2018 at 9:13 AM Mike Cox wrote: >> >> It's a MENU selection ... See MENU>PWR--ON ... >> >>> On 11/16/2018 8:57 AM, Michael Blake via Elecraft wrote: >>> My KPA500 does not power up in operate. It always powers up in Standby. >>> >>> 73 - Mike - K9JRI >>> >>> >>> >>> >>> >>> On Nov 16, 2018, at 8:52 AM, Michael Walker >> wrote: I have the schematics, as someone was kind enough to send them to me. Yes, I forgot the KPA500 powers up in Operate. It is the only Amp I own that does this. I will mention it to Elecraft when I chat with them later today and >> suggest the default should be the other way around. Mike va3mw > On Fri, Nov 16, 2018 at 8:27 AM ANDY DURBIN wrote: > > "The unit was powered on and it came up in operate mode while the HF >> radio > was in TX at 100w on 6M. End result is that the magic smoke got out. >> :)" > > > I suspect this is a very common mistake for ops who sometimes use the >> amp > and sometimes operate barefoot. I thought the KPA500 was designed to > protect against that user error. Seems I was wrong. > > > Suggest you contact support for schematics. Unless their policy has > changed recently they will provide them to you. > > > 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 va...@portcredit.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 k9...@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 m...@ab9v.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 va...@portcredit.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 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] Killed the KPA500 :)
Sorry I don't use a K3 and it was a mistake in my in head checklist. Mike va3mw On Fri, Nov 16, 2018 at 9:56 AM Bob McGraw K4TAX wrote: > You can configure the amp via the MENU to power up in the stand-by mode. > Also have it go to stand-by when changing bands. > > You should have the amp connected to the K3 via the multi conductor cable > and not use the amp key cable. > > The amp follows the radio and none of this will happen. > > Bob, K4TAX > > > Sent from my iPhone > > > On Nov 16, 2018, at 7:52 AM, Michael Walker > wrote: > > > > I have the schematics, as someone was kind enough to send them to me. > > > > Yes, I forgot the KPA500 powers up in Operate. It is the only Amp I own > > that does this. > > > > I will mention it to Elecraft when I chat with them later today and > suggest > > the default should be the other way around. > > > > Mike va3mw > > > > > >> On Fri, Nov 16, 2018 at 8:27 AM ANDY DURBIN wrote: > >> > >> "The unit was powered on and it came up in operate mode while the HF > radio > >> was in TX at 100w on 6M. End result is that the magic smoke got out. :)" > >> > >> > >> I suspect this is a very common mistake for ops who sometimes use the > amp > >> and sometimes operate barefoot. I thought the KPA500 was designed to > >> protect against that user error. Seems I was wrong. > >> > >> > >> Suggest you contact support for schematics. Unless their policy has > >> changed recently they will provide them to you. > >> > >> > >> 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 va...@portcredit.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 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] Killed the KPA500 :)
Thanks all I'll check the menu. I certainly don't remember it being there, but I will have a 2nd look once I reassemble it and remove the smoked parts. I have the schematics now. Thanks, Mike va3mw On Fri, Nov 16, 2018 at 9:13 AM Mike Cox wrote: > It's a MENU selection ... See MENU>PWR--ON ... > > On 11/16/2018 8:57 AM, Michael Blake via Elecraft wrote: > > My KPA500 does not power up in operate. It always powers up in Standby. > > > > 73 - Mike - K9JRI > > > > > > > > > > > > > >> On Nov 16, 2018, at 8:52 AM, Michael Walker > wrote: > >> > >> I have the schematics, as someone was kind enough to send them to me. > >> > >> Yes, I forgot the KPA500 powers up in Operate. It is the only Amp I own > >> that does this. > >> > >> I will mention it to Elecraft when I chat with them later today and > suggest > >> the default should be the other way around. > >> > >> Mike va3mw > >> > >> > >> On Fri, Nov 16, 2018 at 8:27 AM ANDY DURBIN wrote: > >> > >>> "The unit was powered on and it came up in operate mode while the HF > radio > >>> was in TX at 100w on 6M. End result is that the magic smoke got out. > :)" > >>> > >>> > >>> I suspect this is a very common mistake for ops who sometimes use the > amp > >>> and sometimes operate barefoot. I thought the KPA500 was designed to > >>> protect against that user error. Seems I was wrong. > >>> > >>> > >>> Suggest you contact support for schematics. Unless their policy has > >>> changed recently they will provide them to you. > >>> > >>> > >>> 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 va...@portcredit.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 k9...@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 m...@ab9v.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 va...@portcredit.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] Killed the KPA500 :)
You can configure the amp via the MENU to power up in the stand-by mode. Also have it go to stand-by when changing bands. You should have the amp connected to the K3 via the multi conductor cable and not use the amp key cable. The amp follows the radio and none of this will happen. Bob, K4TAX Sent from my iPhone > On Nov 16, 2018, at 7:52 AM, Michael Walker wrote: > > I have the schematics, as someone was kind enough to send them to me. > > Yes, I forgot the KPA500 powers up in Operate. It is the only Amp I own > that does this. > > I will mention it to Elecraft when I chat with them later today and suggest > the default should be the other way around. > > Mike va3mw > > >> On Fri, Nov 16, 2018 at 8:27 AM ANDY DURBIN wrote: >> >> "The unit was powered on and it came up in operate mode while the HF radio >> was in TX at 100w on 6M. End result is that the magic smoke got out. :)" >> >> >> I suspect this is a very common mistake for ops who sometimes use the amp >> and sometimes operate barefoot. I thought the KPA500 was designed to >> protect against that user error. Seems I was wrong. >> >> >> Suggest you contact support for schematics. Unless their policy has >> changed recently they will provide them to you. >> >> >> 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 va...@portcredit.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 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] Killed the KPA500 :)
Hi guys: No mention was made of whether the transceiver was being operated by the front panel or via CAT commands. Maybe something in some running software sent an "operate" command when it should not have. It'll be interesting to know what the cause of the incident turns out to be. 73 de Ray K2ULR KX3 #211 -Original Message- From: Ken Wagner K3IU To: Michael Blake ; Michael Walker Cc: Elecraft Reflector ; Andy Durbin Sent: Fri, Nov 16, 2018 9:05 am Subject: Re: [Elecraft] Killed the KPA500 :) Me too... or mine too. 73, Ken K3IU ~~ On 11/16/2018 8:57 AM, Michael Blake via Elecraft wrote: > My KPA500 does not power up in operate. It always powers up in Standby. > > 73 - Mike - K9JRI > > > > > > >> On Nov 16, 2018, at 8:52 AM, Michael Walker wrote: >> >> I have the schematics, as someone was kind enough to send them to me. >> >> Yes, I forgot the KPA500 powers up in Operate. It is the only Amp I own >> that does this. >> >> I will mention it to Elecraft when I chat with them later today and suggest >> the default should be the other way around. >> >> Mike va3mw >> >> >> On Fri, Nov 16, 2018 at 8:27 AM ANDY DURBIN wrote: >> >>> "The unit was powered on and it came up in operate mode while the HF radio >>> was in TX at 100w on 6M. End result is that the magic smoke got out. :)" >>> >>> >>> I suspect this is a very common mistake for ops who sometimes use the amp >>> and sometimes operate barefoot. I thought the KPA500 was designed to >>> protect against that user error. Seems I was wrong. >>> >>> >>> Suggest you contact support for schematics. Unless their policy has >>> changed recently they will provide them to you. >>> >>> >>> 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 va...@portcredit.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 k9...@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 kenk...@cox.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 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] Killed the KPA500 :)
It's a MENU selection ... See MENU>PWR--ON ... On 11/16/2018 8:57 AM, Michael Blake via Elecraft wrote: My KPA500 does not power up in operate. It always powers up in Standby. 73 - Mike - K9JRI On Nov 16, 2018, at 8:52 AM, Michael Walker wrote: I have the schematics, as someone was kind enough to send them to me. Yes, I forgot the KPA500 powers up in Operate. It is the only Amp I own that does this. I will mention it to Elecraft when I chat with them later today and suggest the default should be the other way around. Mike va3mw On Fri, Nov 16, 2018 at 8:27 AM ANDY DURBIN wrote: "The unit was powered on and it came up in operate mode while the HF radio was in TX at 100w on 6M. End result is that the magic smoke got out. :)" I suspect this is a very common mistake for ops who sometimes use the amp and sometimes operate barefoot. I thought the KPA500 was designed to protect against that user error. Seems I was wrong. Suggest you contact support for schematics. Unless their policy has changed recently they will provide them to you. 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 va...@portcredit.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 k9...@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 m...@ab9v.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 arch...@mail-archive.com
Re: [Elecraft] Killed the KPA500 :)
Mine also always powers up in standby... 73 Jeff kb2m -Original Message- From: Michael Blake via Elecraft Sent: Friday, November 16, 2018 8:57 AM To: Michael Walker Cc: Elecraft Reflector ; Andy Durbin Subject: Re: [Elecraft] Killed the KPA500 :) My KPA500 does not power up in operate. It always powers up in Standby. 73 - Mike - K9JRI On Nov 16, 2018, at 8:52 AM, Michael Walker wrote: I have the schematics, as someone was kind enough to send them to me. Yes, I forgot the KPA500 powers up in Operate. It is the only Amp I own that does this. I will mention it to Elecraft when I chat with them later today and suggest the default should be the other way around. Mike va3mw On Fri, Nov 16, 2018 at 8:27 AM ANDY DURBIN wrote: "The unit was powered on and it came up in operate mode while the HF radio was in TX at 100w on 6M. End result is that the magic smoke got out. :)" I suspect this is a very common mistake for ops who sometimes use the amp and sometimes operate barefoot. I thought the KPA500 was designed to protect against that user error. Seems I was wrong. Suggest you contact support for schematics. Unless their policy has changed recently they will provide them to you. 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 va...@portcredit.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 k9...@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 k...@arrl.net --- 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] Killed the KPA500 :)
"My KPA500 does not power up in operate. It always powers up in Standby." Mine too. I also drop to STBY on band change. Both are user configurable and, since this is my first amp, I chose settings that leaned towards safety rather than operator convenience. I forget what the defaults were. 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
Re: [Elecraft] Killed the KPA500 :)
The power up state, “standby” or “operate”, is programmable. I’ve always felt is was safer to have an amp power up in standby in most cases. Some remote operators may want it to power up in “operate” but would have to take measures to ensure the exciter was in standby at the time. Ken WA2LBI On Fri, Nov 16, 2018 at 08:58 Michael Blake via Elecraft < elecraft@mailman.qth.net> wrote: > My KPA500 does not power up in operate. It always powers up in Standby. > > 73 - Mike - K9JRI > > > > > > > > On Nov 16, 2018, at 8:52 AM, Michael Walker > wrote: > > > > I have the schematics, as someone was kind enough to send them to me. > > > > Yes, I forgot the KPA500 powers up in Operate. It is the only Amp I own > > that does this. > > > > I will mention it to Elecraft when I chat with them later today and > suggest > > the default should be the other way around. > > > > Mike va3mw > > > > > > On Fri, Nov 16, 2018 at 8:27 AM ANDY DURBIN wrote: > > > >> "The unit was powered on and it came up in operate mode while the HF > radio > >> was in TX at 100w on 6M. End result is that the magic smoke got out. :)" > >> > >> > >> I suspect this is a very common mistake for ops who sometimes use the > amp > >> and sometimes operate barefoot. I thought the KPA500 was designed to > >> protect against that user error. Seems I was wrong. > >> > >> > >> Suggest you contact support for schematics. Unless their policy has > >> changed recently they will provide them to you. > >> > >> > >> 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 va...@portcredit.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 k9...@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 wa2...@gmail.com > -- Ken WA2LBI Sent from one of my mobile devices __ 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] Killed the KPA500 :)
Me too... or mine too. 73, Ken K3IU ~~ On 11/16/2018 8:57 AM, Michael Blake via Elecraft wrote: My KPA500 does not power up in operate. It always powers up in Standby. 73 - Mike - K9JRI On Nov 16, 2018, at 8:52 AM, Michael Walker wrote: I have the schematics, as someone was kind enough to send them to me. Yes, I forgot the KPA500 powers up in Operate. It is the only Amp I own that does this. I will mention it to Elecraft when I chat with them later today and suggest the default should be the other way around. Mike va3mw On Fri, Nov 16, 2018 at 8:27 AM ANDY DURBIN wrote: "The unit was powered on and it came up in operate mode while the HF radio was in TX at 100w on 6M. End result is that the magic smoke got out. :)" I suspect this is a very common mistake for ops who sometimes use the amp and sometimes operate barefoot. I thought the KPA500 was designed to protect against that user error. Seems I was wrong. Suggest you contact support for schematics. Unless their policy has changed recently they will provide them to you. 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 va...@portcredit.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 k9...@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 kenk...@cox.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] Killed the KPA500 :)
My KPA500 does not power up in operate. It always powers up in Standby. 73 - Mike - K9JRI > On Nov 16, 2018, at 8:52 AM, Michael Walker wrote: > > I have the schematics, as someone was kind enough to send them to me. > > Yes, I forgot the KPA500 powers up in Operate. It is the only Amp I own > that does this. > > I will mention it to Elecraft when I chat with them later today and suggest > the default should be the other way around. > > Mike va3mw > > > On Fri, Nov 16, 2018 at 8:27 AM ANDY DURBIN wrote: > >> "The unit was powered on and it came up in operate mode while the HF radio >> was in TX at 100w on 6M. End result is that the magic smoke got out. :)" >> >> >> I suspect this is a very common mistake for ops who sometimes use the amp >> and sometimes operate barefoot. I thought the KPA500 was designed to >> protect against that user error. Seems I was wrong. >> >> >> Suggest you contact support for schematics. Unless their policy has >> changed recently they will provide them to you. >> >> >> 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 va...@portcredit.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 k9...@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
Re: [Elecraft] Killed the KPA500 :)
I have the schematics, as someone was kind enough to send them to me. Yes, I forgot the KPA500 powers up in Operate. It is the only Amp I own that does this. I will mention it to Elecraft when I chat with them later today and suggest the default should be the other way around. Mike va3mw On Fri, Nov 16, 2018 at 8:27 AM ANDY DURBIN wrote: > "The unit was powered on and it came up in operate mode while the HF radio > was in TX at 100w on 6M. End result is that the magic smoke got out. :)" > > > I suspect this is a very common mistake for ops who sometimes use the amp > and sometimes operate barefoot. I thought the KPA500 was designed to > protect against that user error. Seems I was wrong. > > > Suggest you contact support for schematics. Unless their policy has > changed recently they will provide them to you. > > > 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 va...@portcredit.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
