Re: [Elecraft] Is this guys site authorized by Elecraft ??
Some mail clients - Apple mail for instance, will popup the real URL underlying the link if you hover over the link in the mail. The number of times paypal turns out to be something like 'grab.themoney.andrun.com' is quiet interesting! It will do it for email addresses too :-) 73 de M0XDF -- Ideas are like rabbits. You get a couple and learn how to handle them, and pretty soon you have a dozen. --John Steinbeck, novelist, Nobel laureate (1902-1968) On 17 Aug 2011, at 04:09, Ron D'Eau Claire wrote: When there's a web URL given, the safe approach is to open your browser and type the address in. That's what I did. The real danger is that clicking on a link may take you to a site that is *not* the one shown or launch malware that is not obvious. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] Is this guys site authorized by Elecraft ??
It seems every week or two a simple spam mail like this gets a long thread on the reflector. I preview mail with Mailwasher. This one was so obviously spam that it was deleted there straight away. And Mailwasher also allows you to easily see where the URL points (links to nastysite.com...). It is sad that spam does get on this list, but it is no big issue. Just delete it and get on with life. 73 Dave G3YMC On 17 Aug 2011 at 9:03, David Ferrington, M0XDF wrote: Some mail clients - Apple mail for instance, will popup the real URL underlying the link if you hover over the link in the mail. The number of times paypal turns out to be something like 'grab.themoney.andrun.com' is quiet interesting! It will do it for email addresses too :-) 73 de M0XDF -- http://www.davesergeant.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
[Elecraft] Sorry for the spam
To all, I could have sworn I deleted that obvious spam without opening... My apologies. Please advise if it continues to be a problem. Not quite sure how to ensure that this Yahoo account doesn't remain compromised without starting a new account...Advice? Thanks, Jeff N7KRT __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] Sorry for the spam
Change your password. -- View this message in context: http://elecraft.365791.n2.nabble.com/Sorry-for-the-spam-tp6695100p6695266.html Sent from the Elecraft mailing list archive at Nabble.com. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] New K3
Paul, Sorry to hear about the loss of all your equipment. In looking at your order I have a question. Why are you ordering both the 2.1 and 1.8 KHZ filters? I have the 1.8 KHZ filter in mine and it really works effectly on SSB, Didigal and CW (Wide). If I were you I would order the 6 KHZ filter instead. I find it comes in handy when tunning the band and I do run AM. 73K3/100-F K3 100W Xcvr. (Assembled) $2199.95 ea. 1 $2199.95 increase decrease remove KAT3-F K3 ATU (Fact. Installed) $339.95 ea. 1 $339.95 increase decrease remove KFL3A-1.8K K3 1.8 kHz, 8 pole filter $130.95 ea. 1 $130.95 increase decrease remove KFL3A-2.1K K3 2.1 kHz, 8 pole filter $130.95 ea. 1 $130.95 increase decrease remove KFL3A-250 K3 250 Hz, 8 pole filter $130.95 ea. 1 $130.95 increase decrease remove KFL3A-400 K3 400 Hz, 8 pole filter $130.95 ea. 1 $130.95 increase decrease remove KRX3-F K3 2nd RX (Fact. Assm.) $659.95 ea. 1 $659.95 increase decrease remove KUSB Univ. Ser Bus Adapt. $39.95 ea. 1 $39.95 Dave KD1NA PS It was a blast working you guys! __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] K3 #5702 Received 8/16/11
I received my K3 #5702 kit last night and am looking forward to the build and operating this great radio. I'm certain that somewhere Tom Hammond (N0SS), my friend and mentor for over 35 years, was smiling last night as I started the sorting and assembly. My K3 is in memory of Tom. dit dit I also look forward to meeting many of you on this forum. 73, Mitch WD0ECO -- View this message in context: http://elecraft.365791.n2.nabble.com/K3-5702-Received-8-16-11-tp6695490p6695490.html Sent from the Elecraft mailing list archive at Nabble.com. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] WTB FS/Trade
I'm looking for a 500Hz 5 pole filter for my K3. Still have an AM filter. Also have a lot of new parts 1% and tophat 1/4w resistors, caps, ICs, various connectors and odds n ends for trade/sale. I'm looking for 10K 1/4w 5% resistors (need 20), 4N25 (2 needed), Andrew 7/8 Heliax connectors (need 4). Maybe we can help each other out... 73, Julius n2wn - Julius Fazekas N2WN Tennessee Contest Group http://www.k4ro.net/tcg/index.html Tennessee QSO Party http://www.tnqp.org/ Elecraft K2#4455 Elecraft K3/100 #366 Elecraft K3/100 -- View this message in context: http://elecraft.365791.n2.nabble.com/WTB-FS-Trade-tp6696249p6696249.html Sent from the Elecraft mailing list archive at Nabble.com. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] WTB FS/Trade
Whoops, forgot I need a couple 1N34a and twenty or so 1N914b diodes too... - Julius Fazekas N2WN Tennessee Contest Group http://www.k4ro.net/tcg/index.html Tennessee QSO Party http://www.tnqp.org/ Elecraft K2#4455 Elecraft K3/100 #366 Elecraft K3/100 -- View this message in context: http://elecraft.365791.n2.nabble.com/WTB-FS-Trade-tp6696249p6696256.html Sent from the Elecraft mailing list archive at Nabble.com. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] WTB FS/Trade
Say, Julius, are you designing a secret weapon for TN QP in September? 73, Gary VE1RGB -Original Message- From: elecraft-boun...@mailman.qth.net [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Julius Fazekas n2wn Sent: August 17, 2011 2:06 PM To: elecraft@mailman.qth.net Subject: Re: [Elecraft] WTB FS/Trade Whoops, forgot I need a couple 1N34a and twenty or so 1N914b diodes too... - Julius Fazekas N2WN Tennessee Contest Group http://www.k4ro.net/tcg/index.html Tennessee QSO Party http://www.tnqp.org/ Elecraft K2#4455 Elecraft K3/100 #366 Elecraft K3/100 -- View this message in context: http://elecraft.365791.n2.nabble.com/WTB-FS-Trade-tp6696249p6696256.html Sent from the Elecraft mailing list archive at Nabble.com. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] Bearfoot
In bearfoot mode the K3 runs 100 watts Is that Grizzly, Brown, Black, Panda or Polar? 73, Geo... Sri, I just couldn't resist! George Wagner, K5KG Sarasota, FL 941-400-1960 cell __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] Bearfoot
Teddy -Original Message- From: elecraft-boun...@mailman.qth.net [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of georgek...@aol.com Sent: Wednesday, August 17, 2011 1:18 PM To: elecraft@mailman.qth.net Subject: [Elecraft] Bearfoot In bearfoot mode the K3 runs 100 watts Is that Grizzly, Brown, Black, Panda or Polar? 73, Geo... Sri, I just couldn't resist! George Wagner, K5KG Sarasota, FL 941-400-1960 cell __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] P3 Manual Calibration procedure question
I'm sure this has been discussed before but if so, I have missed it. On page 24 of the P3 Owner's Manual, Rev. B, March 29, 2011, under the heading of Amplitude Calibration the forth button down, it states to set the signal generator for 7040 kHz and the following button below says to set the transceiver to approximately 7015 kHz so the signal is centered on the right half of the display. Is this a typo? If not, can someone please explain the purpose of doing this? Thanks and 73 Tom - W4BQF __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] P3 Manual Calibration procedure question
Tom, The instructions are correct. 73, Tom Amateur Radio Operator N5GE ARRL Lifetime Member QCWA Lifetime Member On Wed, 17 Aug 2011 17:30:10 -0400, Tommy Alderman alderm...@windstream.net wrote: I'm sure this has been discussed before but if so, I have missed it. On page 24 of the P3 Owner's Manual, Rev. B, March 29, 2011, under the heading of Amplitude Calibration the forth button down, it states to set the signal generator for 7040 kHz and the following button below says to set the transceiver to approximately 7015 kHz so the signal is centered on the right half of the display. Is this a typo? If not, can someone please explain the purpose of doing this? Thanks and 73 Tom - W4BQF [snip] __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] P3 Manual Calibration procedure question
There is a small variation in IF output level from the K3 for signals that are within the passband of the K3 crystal filter. (The crystal filter is after the IF OUT tap-off point but the input impedance of some crystal filters can load down the signal level a little.) De-tuning the calibration signal avoids the error. Alan N1AL On Wed, 2011-08-17 at 17:30 -0400, Tommy Alderman wrote: I'm sure this has been discussed before but if so, I have missed it. On page 24 of the P3 Owner's Manual, Rev. B, March 29, 2011, under the heading of Amplitude Calibration the forth button down, it states to set the signal generator for 7040 kHz and the following button below says to set the transceiver to approximately 7015 kHz so the signal is centered on the right half of the display. Is this a typo? If not, can someone please explain the purpose of doing this? Thanks and 73 Tom - W4BQF __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] FW: P3 Manual Calibration procedure question
Thanks! I have received a technical response to my question. Tom - W4BQF -Original Message- From: elecraft-boun...@mailman.qth.net [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Tommy Alderman Sent: Wednesday, August 17, 2011 5:30 PM To: elecraft@mailman.qth.net Subject: [Elecraft] P3 Manual Calibration procedure question I'm sure this has been discussed before but if so, I have missed it. On page 24 of the P3 Owner's Manual, Rev. B, March 29, 2011, under the heading of Amplitude Calibration the forth button down, it states to set the signal generator for 7040 kHz and the following button below says to set the transceiver to approximately 7015 kHz so the signal is centered on the right half of the display. Is this a typo? If not, can someone please explain the purpose of doing this? Thanks and 73 Tom - W4BQF __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] K3-Front panel shut down question.
My K2 is set up with a power supply to the 100w connection and a battery to the low power connection, If commercial power cuts off without warning(and it does sometimes)the K2 stays on with battery power. I am looking for a way to do this with my K3 so I can at least shut down from the front panel when this happens. I understand the K3 don't like it when shutdown other than the front panel. Maybe a battery between the power suppley and the K3?(or is there a better way). -- View this message in context: http://elecraft.365791.n2.nabble.com/K3-Front-panel-shut-down-question-tp6697413p6697413.html Sent from the Elecraft mailing list archive at Nabble.com. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] K3-Front panel shut down question.
Plug your K3 into a decent UPS. Gary W2CS -Original Message- From: elecraft-boun...@mailman.qth.net [mailto:elecraft- boun...@mailman.qth.net] On Behalf Of kf4clo Sent: Wednesday, August 17, 2011 6:12 PM To: elecraft@mailman.qth.net Subject: [Elecraft] K3-Front panel shut down question. My K2 is set up with a power supply to the 100w connection and a battery to the low power connection, If commercial power cuts off without warning(and it does sometimes)the K2 stays on with battery power. I am looking for a way to do this with my K3 so I can at least shut down from the front panel when this happens. I understand the K3 don't like it when shutdown other than the front panel. Maybe a battery between the power suppley and the K3?(or is there a better way). -- View this message in context: http://elecraft.365791.n2.nabble.com/K3- Front-panel-shut-down-question-tp6697413p6697413.html Sent from the Elecraft mailing list archive at Nabble.com. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] Bearfoot
Forgive me... Yogi Bill On Wednesday, August 17, 2011, Fred Townsend ftowns...@sbcglobal.net wrote: Teddy -Original Message- From: elecraft-boun...@mailman.qth.net [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of georgek...@aol.com Sent: Wednesday, August 17, 2011 1:18 PM To: elecraft@mailman.qth.net Subject: [Elecraft] Bearfoot In bearfoot mode the K3 runs 100 watts Is that Grizzly, Brown, Black, Panda or Polar? 73, Geo... Sri, I just couldn't resist! George Wagner, K5KG Sarasota, FL 941-400-1960 cell __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] Bearfoot
BOY the list is really SLOW! Kurt W7QHD Date: Wed, 17 Aug 2011 18:56:20 -0500 From: bill.ke...@gmail.com To: ftowns...@sbcglobal.net CC: elecraft@mailman.qth.net; georgek...@aol.com Subject: Re: [Elecraft] Bearfoot Forgive me... Yogi Bill On Wednesday, August 17, 2011, Fred Townsend ftowns...@sbcglobal.net wrote: Teddy -Original Message- From: elecraft-boun...@mailman.qth.net [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of georgek...@aol.com Sent: Wednesday, August 17, 2011 1:18 PM To: elecraft@mailman.qth.net Subject: [Elecraft] Bearfoot In bearfoot mode the K3 runs 100 watts Is that Grizzly, Brown, Black, Panda or Polar? 73, Geo... Sri, I just couldn't resist! George Wagner, K5KG Sarasota, FL 941-400-1960 cell __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] K3-Front panel shut down question.
You could connect a battery and a power supply to the K3 power input, if you put a diode in series with the battery and one in series with the power supply. The cathodes of the diodes would go toward the K3. Then as long as the voltage of the PS was greater than that from the battery, the power would come from the PS. If the PS went off it would come from the battery. The diodes would prevent any current from flowing between the PS and the battery. Of course a UPS is an idea, but many UPS' generate a lot of radio noise. After all, they contain inverters, which are switching devices. On 8/17/2011 3:12 PM, kf4clo wrote: My K2 is set up with a power supply to the 100w connection and a battery to the low power connection, If commercial power cuts off without warning(and it does sometimes)the K2 stays on with battery power. I am looking for a way to do this with my K3 so I can at least shut down from the front panel when this happens. I understand the K3 don't like it when shutdown other than the front panel. Maybe a battery between the power suppley and the K3?(or is there a better way). -- Vic, K2VCO Fresno CA http://www.qsl.net/k2vco/ __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] Bearfoot
It's not unbearably slow... Hi Hi. Matthew Pitts N8OHU Sent from my Verizon Wireless BlackBerry -Original Message- From: Kurt Cramer w7...@msn.com Sender: elecraft-boun...@mailman.qth.net Date: Wed, 17 Aug 2011 17:10:55 To: bill.ke...@gmail.com; ftowns...@sbcglobal.net Cc: elecraft@mailman.qth.net; georgek...@aol.com Subject: Re: [Elecraft] Bearfoot BOY the list is really SLOW! Kurt W7QHD Date: Wed, 17 Aug 2011 18:56:20 -0500 From: bill.ke...@gmail.com To: ftowns...@sbcglobal.net CC: elecraft@mailman.qth.net; georgek...@aol.com Subject: Re: [Elecraft] Bearfoot Forgive me... Yogi Bill On Wednesday, August 17, 2011, Fred Townsend ftowns...@sbcglobal.net wrote: Teddy -Original Message- From: elecraft-boun...@mailman.qth.net [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of georgek...@aol.com Sent: Wednesday, August 17, 2011 1:18 PM To: elecraft@mailman.qth.net Subject: [Elecraft] Bearfoot In bearfoot mode the K3 runs 100 watts Is that Grizzly, Brown, Black, Panda or Polar? 73, Geo... Sri, I just couldn't resist! George Wagner, K5KG Sarasota, FL 941-400-1960 cell __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] K3-Front panel shut down question.
Vic, what you are describing is called a diode 'OR' gate. That works well with logic but it has some problems with power. If the diode is not ideal it will drop voltage across the diode. That can amount to considerable power loss and destroy the diode if you are not carful. That's why you see such devices sold on heat sinks (called battery isolators). A better solution if you can set the power supply to the float voltage of the battery, then float the battery across the power connection to the K3. This has a bonus that the battery acts as a filter. Remember the power supply voltage must match the battery float voltage which is around 13.85v +/- 50 mv. 73 de Fred, AE6QL -Original Message- From: elecraft-boun...@mailman.qth.net [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Vic K2VCO Sent: Wednesday, August 17, 2011 5:12 PM To: elecraft@mailman.qth.net Subject: Re: [Elecraft] K3-Front panel shut down question. You could connect a battery and a power supply to the K3 power input, if you put a diode in series with the battery and one in series with the power supply. The cathodes of the diodes would go toward the K3. Then as long as the voltage of the PS was greater than that from the battery, the power would come from the PS. If the PS went off it would come from the battery. The diodes would prevent any current from flowing between the PS and the battery. Of course a UPS is an idea, but many UPS' generate a lot of radio noise. After all, they contain inverters, which are switching devices. On 8/17/2011 3:12 PM, kf4clo wrote: My K2 is set up with a power supply to the 100w connection and a battery to the low power connection, If commercial power cuts off without warning(and it does sometimes)the K2 stays on with battery power. I am looking for a way to do this with my K3 so I can at least shut down from the front panel when this happens. I understand the K3 don't like it when shutdown other than the front panel. Maybe a battery between the power suppley and the K3?(or is there a better way). -- Vic, K2VCO Fresno CA http://www.qsl.net/k2vco/ __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] K3-Front panel shut down question.
There will be about 0.6v drop across each diode. That won't be a problem for the power supply. It will reduce the amount of time the battery will operate the K3 a bit, but the K3 will work down to a pretty low voltage to start with. Obviously the diodes have to be rated properly and heatsinked if necessary. Float-charging the battery is nice, but you have to be very careful. Too much voltage can destroy the battery, too little will shorten its life. There is also the problem of producing hydrogen if it's not a sealed battery, etc. I just wanted to provide the simplest solution possible for the original poster's question. On 8/17/2011 6:17 PM, Fred Townsend wrote: Vic, what you are describing is called a diode 'OR' gate. That works well with logic but it has some problems with power. If the diode is not ideal it will drop voltage across the diode. That can amount to considerable power loss and destroy the diode if you are not carful. That's why you see such devices sold on heat sinks (called battery isolators). A better solution if you can set the power supply to the float voltage of the battery, then float the battery across the power connection to the K3. This has a bonus that the battery acts as a filter. Remember the power supply voltage must match the battery float voltage which is around 13.85v +/- 50 mv. 73 de Fred, AE6QL -Original Message- From: elecraft-boun...@mailman.qth.net [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Vic K2VCO Sent: Wednesday, August 17, 2011 5:12 PM To: elecraft@mailman.qth.net Subject: Re: [Elecraft] K3-Front panel shut down question. You could connect a battery and a power supply to the K3 power input, if you put a diode in series with the battery and one in series with the power supply. The cathodes of the diodes would go toward the K3. Then as long as the voltage of the PS was greater than that from the battery, the power would come from the PS. If the PS went off it would come from the battery. The diodes would prevent any current from flowing between the PS and the battery. Of course a UPS is an idea, but many UPS' generate a lot of radio noise. After all, they contain inverters, which are switching devices. On 8/17/2011 3:12 PM, kf4clo wrote: My K2 is set up with a power supply to the 100w connection and a battery to the low power connection, If commercial power cuts off without warning(and it does sometimes)the K2 stays on with battery power. I am looking for a way to do this with my K3 so I can at least shut down from the front panel when this happens. I understand the K3 don't like it when shutdown other than the front panel. Maybe a battery between the power suppley and the K3?(or is there a better way). -- Vic, K2VCO Fresno CA http://www.qsl.net/k2vco/ __ 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 -- Vic, K2VCO Fresno CA http://www.qsl.net/k2vco/ __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] Wanted: KPA100
Looking for a working KPA100. Please contact me off-list at the address below if you have one excess to your needs. Thanks. Andy N3LCW email: capntripps at zoominternet dot net -- View this message in context: http://elecraft.365791.n2.nabble.com/Wanted-KPA100-tp6697937p6697937.html Sent from the Elecraft mailing list archive at Nabble.com. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] K3-Front panel shut down question.
G'day! I use 6 x 2.2V, 250AH Gel Cells in parallel with my 30A linear power supply to run my K3. The battery sets float voltage happens to be 13.8V so all is good. I have another set of gelcells here which runs my 150W output 2m linear amplifier and which is floated by a separate power supply. I also have 2 x 12V deep cycle wet cell batteries here but they are used more for portable ops as they are considerably lighter than the gelcells. (The gelcells weigh about 23Kg each!) I don't use or need diodes anywhere to be able to run this setup. 73 de Jeff Cochrane - VK4BOF Elecraft K3 #4257 + PR6 + K144XV + KPA500 #161 = Fanbloodytastic performance! - Original Message - From: kf4clo kf4...@hotmail.com To: elecraft@mailman.qth.net Sent: Thursday, August 18, 2011 8:12 AM Subject: [Elecraft] K3-Front panel shut down question. My K2 is set up with a power supply to the 100w connection and a battery to the low power connection, If commercial power cuts off without warning(and it does sometimes)the K2 stays on with battery power. I am looking for a way to do this with my K3 so I can at least shut down from the front panel when this happens. I understand the K3 don't like it when shutdown other than the front panel. Maybe a battery between the power suppley and the K3?(or is there a better way). -- View this message in context: http://elecraft.365791.n2.nabble.com/K3-Front-panel-shut-down-question-tp6697413p6697413.html Sent from the Elecraft mailing list archive at Nabble.com. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] K3-Front panel shut down question.
Perhaps the simplest solution is to just not worry about it? Whilst yanking the power supply while the K3 is running is not recommended, the chances of an unexpected power outage actually doing any harm are fairly minimal, AFAIK. Keep a copy of your configuration (using the K3 Utility) so you can reload it in a worst-case scenario... and be happy... 73, ~iain / N6ML On Thu, Aug 18, 2011 at 2:20 AM, Vic K2VCO k2vco@gmail.com wrote: There will be about 0.6v drop across each diode. That won't be a problem for the power supply. It will reduce the amount of time the battery will operate the K3 a bit, but the K3 will work down to a pretty low voltage to start with. Obviously the diodes have to be rated properly and heatsinked if necessary. Float-charging the battery is nice, but you have to be very careful. Too much voltage can destroy the battery, too little will shorten its life. There is also the problem of producing hydrogen if it's not a sealed battery, etc. I just wanted to provide the simplest solution possible for the original poster's question. On 8/17/2011 6:17 PM, Fred Townsend wrote: Vic, what you are describing is called a diode 'OR' gate. That works well with logic but it has some problems with power. If the diode is not ideal it will drop voltage across the diode. That can amount to considerable power loss and destroy the diode if you are not carful. That's why you see such devices sold on heat sinks (called battery isolators). A better solution if you can set the power supply to the float voltage of the battery, then float the battery across the power connection to the K3. This has a bonus that the battery acts as a filter. Remember the power supply voltage must match the battery float voltage which is around 13.85v +/- 50 mv. 73 de Fred, AE6QL -Original Message- From: elecraft-boun...@mailman.qth.net [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Vic K2VCO Sent: Wednesday, August 17, 2011 5:12 PM To: elecraft@mailman.qth.net Subject: Re: [Elecraft] K3-Front panel shut down question. You could connect a battery and a power supply to the K3 power input, if you put a diode in series with the battery and one in series with the power supply. The cathodes of the diodes would go toward the K3. Then as long as the voltage of the PS was greater than that from the battery, the power would come from the PS. If the PS went off it would come from the battery. The diodes would prevent any current from flowing between the PS and the battery. Of course a UPS is an idea, but many UPS' generate a lot of radio noise. After all, they contain inverters, which are switching devices. On 8/17/2011 3:12 PM, kf4clo wrote: My K2 is set up with a power supply to the 100w connection and a battery to the low power connection, If commercial power cuts off without warning(and it does sometimes)the K2 stays on with battery power. I am looking for a way to do this with my K3 so I can at least shut down from the front panel when this happens. I understand the K3 don't like it when shutdown other than the front panel. Maybe a battery between the power suppley and the K3?(or is there a better way). -- Vic, K2VCO Fresno CA http://www.qsl.net/k2vco/ __ 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 -- Vic, K2VCO Fresno CA http://www.qsl.net/k2vco/ __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
