Re: [Elecraft] WTB: KVR3 digital voice recorder for K3
Please have your friend check *KDVR3 Digital Voice Recorder* indicate *quantity 3* in the box at the bottom of the Elecraft K3/K3S Options Interest Form: https://elecraft.com/pages/k3-k3s-options-interest-form Many other currently-unavailable K3/K3S options / upgrades are listed there too, such as the *KIO3B Upgrade Kit* (adds USB with virtual serial port and USB Sound Card). If Elecraft gets enough interest for any particular item, they will be motivated to place an order new boards. 73, Bob, N6TV On Fri, Sep 4, 2020 at 5:38 PM Alan D. Wilcox wrote: > Hello, > > A good friend wants to buy three KVR3 boards for his several K3's ... > > Write to me off-board with price. > > Many thanks, > > Alan > > -- > Alan D. Wilcox, W3DVX (K2-5373, K3-40, SKCC 22955) > 570-916-9590 (cell, text) > https://WilcoxEngineering.com > http://www.eham.net/reviews/detail/6768 ... Elecraft Client Comments > http://amazon.com/author/alandwilcox > Williamsport, PA 17701 > > __ > 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...@arrl.net > __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] W1 Programming???
I just wrote a little code using Posix standards under Ubuntu with g++ for my compiler. Looks like USB is treated as a normal stream of characters. The most difficult part was finding my USB thumb drive in the file system. Under Ubuntu it is in the /media folder. Once I located it I was able to read from it, and write to it, using straightforward code. The W1 wattmeter should react the same way. Write a trap to catch the data packet then a little code to parse it however you like. I did not know it would be so simple: open(), read(), write(), close(). Since Macs are running Linux, with enhancements, writing code to catch the wattmeter's data stream should not be difficult. I assume you can send it commands too. You will need to determine how a data packet is formed but that is part of the fun. 73 and GL, Kevin. KD5ONS On 9/4/20 2:46 PM, James Bennett via Elecraft wrote: I just ordered the nifty little W1 Wattmeter. I see that it can supply serial data to an external program, and that there is a free download of a Visual Basic program on the Elecraft web site. I use a Mac and a Raspberry Pi and do not have VB on either, nor do I want to. I’m fairly proficient in several other programming languages and am thinking that I might “roll my own”, starting on the Mac. I know that this is a stretch, but has anyone done this? I know - hahahaha… OK, how about anyone out there who has read serial data (coming over USB with the Elecraft Serial->USB cable? Any pointers or links to documentation on how to do that? Jim / W6JHB __ 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 kev...@coho.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
[Elecraft] TX MON
I have a Transmit Monitor with DCHF-2000 coupler and board up for sale with manual.I will ship for $170.00..please e-mail direct...Thanks 73s Bob W5RG __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
[Elecraft] WTB: KVR3 digital voice recorder for K3
Hello, A good friend wants to buy three KVR3 boards for his several K3's ... Write to me off-board with price. Many thanks, Alan -- Alan D. Wilcox, W3DVX (K2-5373, K3-40, SKCC 22955) 570-916-9590 (cell, text) https://WilcoxEngineering.com http://www.eham.net/reviews/detail/6768 ... Elecraft Client Comments http://amazon.com/author/alandwilcox Williamsport, PA 17701 __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] K3 External speakers
Set CONFIG:SPKRS=2. Same audio comes out of both external speakers. AFX makes some effects that can be less tiring. 73, Brian, K0DTJ __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
[Elecraft] PR6 preamp for sale
I know longer need mine so it’s available to anyone who wanted the other one and missed out on it. $60 Happy holiday! Rick, W2JAZ -- Sent from Gmail Mobile __ 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] K2+KPA100 hi current and hi output
Andre, Do you have any power control? To check set the power to about 50 watts and do a TUNE. Measure the actual power output with an in-line wattmeter and a 50 ohm dummy load. If it still goes to 160 watts, you do not have any power control. The usual reason is the diodes D16 and D17 (1N5711 type) have been damaged by static coming in on the feedline. Replace those diodes and re-check. If that does not fix it, I can help with additional troubleshooting. 73, Don W3FPR On 9/4/2020 4:39 PM, atfu wrote: Dear All, I gave a new home to a K2 + (KPA100+KAT100 in EC 2), ser#>5000. The K2 on its own is runnung fine. When I connect to the KPA+KAT I get HiCur warning (on initiating TX) on all bands with POW>10W. This also happens when I transmit into a dummy load. I measured the output from the dummyload with a DMM. There are only two values (depending on the dialled in watts): Below 10W = 38 VDC (= 14W) Above (I checked 20, 50, 80, 100W) = 129 VDC (= 160W!!) In other words, as soon as the KPA is activated, the output is 160W (according to my formula for converting VDC in W). The meter on the power supply (good for 25A) confirms that I draw about 20A above 10W in, apparently only limited by the slow 20A fuse in the line. __ 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] K2+KPA100 hi current and hi output
Hi, Andre - I wonder if it's a problem with blown D16 and D17 in the KPA100. If you follow this forum on-line at nabble.com, you can do a search for "D16" and see many postings on the topic. Good luck. - Bruce K1FFX - Bruce Rosen K1FFX K2/100 6982 KSB2 KAT100-1 KAF2 KIO2 -- Sent from: http://elecraft.365791.n2.nabble.com/ __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
[Elecraft] W1 Programming???
I just ordered the nifty little W1 Wattmeter. I see that it can supply serial data to an external program, and that there is a free download of a Visual Basic program on the Elecraft web site. I use a Mac and a Raspberry Pi and do not have VB on either, nor do I want to. I’m fairly proficient in several other programming languages and am thinking that I might “roll my own”, starting on the Mac. I know that this is a stretch, but has anyone done this? I know - hahahaha… OK, how about anyone out there who has read serial data (coming over USB with the Elecraft Serial->USB cable? Any pointers or links to documentation on how to do that? Jim / W6JHB __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
[Elecraft] Fwd: K4 Manual?
I see that Elecraft is just starting to ship K4s. I am wondering when the manual will be available for download? It would be nice start reading about the MANY functions of this radio prior to actually receiving it. Thanks 73 Nigel WA6MSE __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] Elecraft PR6 Preamp - SOLD
Me too. Ed AB4IQ ab...@comcast.net -Original Message- From: elecraft-boun...@mailman.qth.net [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Ron Freeman Sent: Friday, September 4, 2020 1:43 PM To: Elecraft@mailman.qth.net Subject: Re: [Elecraft] Elecraft PR6 Preamp - SOLD I have one available too. Same deal. k5mm/ron Sent from my iPad > On Sep 4, 2020, at 1:05 PM, Rajiv Dewan via Elecraft > wrote: > > I have one for sale as well. > > Same deal as Bob. > > Raj > >> On Sep 4, 2020, at 2:02 PM, K5WA wrote: >> >> My PR6 has been spoken for but I also received 3 additional offers to >> buy a >> PR6 so I would encourage anyone that wants to sell theirs, you should >> post an offer. I think you will get a reply rather quickly. >> >> >> >> From: K5WA >> Sent: Friday, September 4, 2020 10:06 AM >> To: 'Elecraft@mailman.qth.net' >> Subject: FS: Elecraft PR6 Preamp >> >> >> >> For those of you picking up legacy K3 rigs recently, you might want >> to consider this option. The PR6 was designed to help boost 10M and >> 6M signals as an add-on unit which plugs into the RX IN/OUT >> connections on the back of the K3 with supplied BNC connectors. >> There is a power connection and a control so that you can turn on the >> PR6 by simply pressing the RX ANT button on the front of the K3. Here is a >> link to the user's manual: >> https://ftp.elecraft.com/PR/Manuals%20Downloads/PR6_Owners_Manual_Rev >> _B.pdf >> >> >> >> >> >> $60 or best offer, postpaid to lower 48. >> >> Please contact me off list at listed email. >> >> >> >> 73, >> >> Bob K5WA >> >> Houston, TX >> >> __ >> 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...@arrl.net > > __ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft@mailman.qth.net > > This list hosted by: http://www.qsl.net Please help support this email > list: http://www.qsl.net/donate.html Message delivered to > k5mm.ronfree...@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 ab...@comcast.net __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] K3 External speakers
Press the button marked AFX. Otherwise there is no audio on the right channel without the Sub-Rec. Sent from my iPhone ...nr4c. bill > On Sep 4, 2020, at 10:08 AM, Tom Muller wrote: > > Searched the archive however can't find info for speakers set to 2 and no > sub receiver. Yesterday I got audio from both speakers, and today only one > side is working. I have the correct adaptor and speakers are 8 Ohms > unamplified. Everything checks good on the bench. Could something be wrong > in the radio or something I'm missing in set up? I've read the manual and > Cady book a few times each and can't seem to figure this out. Suggestions > or advise Thanks > __ > 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
[Elecraft] K2+KPA100 hi current and hi output
Dear All, I gave a new home to a K2 + (KPA100+KAT100 in EC 2), ser#>5000. The K2 on its own is runnung fine. When I connect to the KPA+KAT I get HiCur warning (on initiating TX) on all bands with POW>10W. This also happens when I transmit into a dummy load. I measured the output from the dummyload with a DMM. There are only two values (depending on the dialled in watts): Below 10W = 38 VDC (= 14W) Above (I checked 20, 50, 80, 100W) = 129 VDC (= 160W!!) In other words, as soon as the KPA is activated, the output is 160W (according to my formula for converting VDC in W). The meter on the power supply (good for 25A) confirms that I draw about 20A above 10W in, apparently only limited by the slow 20A fuse in the line. Any ideas as to what may be wrong and where I should start? Many thanks in advance for your help! 73 de andre dm1aa __ 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] FS: Elecraft PR6 Preamp - SOLD
I have two PR10s (no 6m capability), like new in original boxes with accessories: $75 shipped USPS Priority Mail in CONUS.73,Ed W0YK Original message From: K5WA Date: 9/4/20 11:02 (GMT-08:00) To: Elecraft@mailman.qth.net Subject: Re: [Elecraft] FS: Elecraft PR6 Preamp - SOLD My PR6 has been spoken for but I also received 3 additional offers to buy aPR6 so I would encourage anyone that wants to sell theirs, you should postan offer. I think you will get a reply rather quickly. From: K5WA Sent: Friday, September 4, 2020 10:06 AMTo: 'Elecraft@mailman.qth.net' Subject: FS: Elecraft PR6 Preamp For those of you picking up legacy K3 rigs recently, you might want toconsider this option. The PR6 was designed to help boost 10M and 6M signalsas an add-on unit which plugs into the RX IN/OUT connections on the back ofthe K3 with supplied BNC connectors. There is a power connection and acontrol so that you can turn on the PR6 by simply pressing the RX ANT buttonon the front of the K3. Here is a link to the user's manual:https://ftp.elecraft.com/PR/Manuals%20Downloads/PR6_Owners_Manual_Rev_B.pdf $60 or best offer, postpaid to lower 48.Please contact me off list at listed email. 73,Bob K5WAHouston, TX__Elecraft mailing listHome: http://mailman.qth.net/mailman/listinfo/elecraftHelp: http://mailman.qth.net/mmfaq.htmPost: mailto:elecr...@mailman.qth.netThis list hosted by: http://www.qsl.netPlease help support this email list: http://www.qsl.net/donate.htmlMessage delivered to e...@w0yk.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] Elecraft PR6 Preamp - SOLD
I have one available too. Same deal. k5mm/ron Sent from my iPad > On Sep 4, 2020, at 1:05 PM, Rajiv Dewan via Elecraft > wrote: > > I have one for sale as well. > > Same deal as Bob. > > Raj > >> On Sep 4, 2020, at 2:02 PM, K5WA wrote: >> >> My PR6 has been spoken for but I also received 3 additional offers to buy a >> PR6 so I would encourage anyone that wants to sell theirs, you should post >> an offer. I think you will get a reply rather quickly. >> >> >> >> From: K5WA >> Sent: Friday, September 4, 2020 10:06 AM >> To: 'Elecraft@mailman.qth.net' >> Subject: FS: Elecraft PR6 Preamp >> >> >> >> For those of you picking up legacy K3 rigs recently, you might want to >> consider this option. The PR6 was designed to help boost 10M and 6M signals >> as an add-on unit which plugs into the RX IN/OUT connections on the back of >> the K3 with supplied BNC connectors. There is a power connection and a >> control so that you can turn on the PR6 by simply pressing the RX ANT button >> on the front of the K3. Here is a link to the user's manual: >> https://ftp.elecraft.com/PR/Manuals%20Downloads/PR6_Owners_Manual_Rev_B.pdf >> >> >> >> >> >> $60 or best offer, postpaid to lower 48. >> >> Please contact me off list at listed email. >> >> >> >> 73, >> >> Bob K5WA >> >> Houston, TX >> >> __ >> 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...@arrl.net > > __ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft@mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to k5mm.ronfree...@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] FS: Elecraft PR6 Preamp - SOLD
Please contact me as I also have a PR6 for sale. 73 Elliott WA6TLA > On Sep 4, 2020, at 11:02 AM, K5WA wrote: > > My PR6 has been spoken for but I also received 3 additional offers to buy a > PR6 so I would encourage anyone that wants to sell theirs, you should post > an offer. I think you will get a reply rather quickly. > > > > From: K5WA > Sent: Friday, September 4, 2020 10:06 AM > To: 'Elecraft@mailman.qth.net' > Subject: FS: Elecraft PR6 Preamp > > > > For those of you picking up legacy K3 rigs recently, you might want to > consider this option. The PR6 was designed to help boost 10M and 6M signals > as an add-on unit which plugs into the RX IN/OUT connections on the back of > the K3 with supplied BNC connectors. There is a power connection and a > control so that you can turn on the PR6 by simply pressing the RX ANT button > on the front of the K3. Here is a link to the user's manual: > https://ftp.elecraft.com/PR/Manuals%20Downloads/PR6_Owners_Manual_Rev_B.pdf > > > > > > $60 or best offer, postpaid to lower 48. > > Please contact me off list at listed email. > > > > 73, > > Bob K5WA > > Houston, TX > > __ > 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 wa6...@icloud.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] FS: Elecraft PR6 Preamp - SOLD
FYI they still sell the PR6-10 preamps new from Elecraft. I just bought one a month ago. I have the K3 and I have made some (but not all) of the conversions to K3s standards. My K3 is performing well. I have my eye on the new K4 but want to see some comparative performance test results before I buy. -Original Message- From: elecraft-boun...@mailman.qth.net On Behalf Of K5WA Sent: Friday, September 4, 2020 11:03 AM To: Elecraft@mailman.qth.net Subject: Re: [Elecraft] FS: Elecraft PR6 Preamp - SOLD My PR6 has been spoken for but I also received 3 additional offers to buy a PR6 so I would encourage anyone that wants to sell theirs, you should post an offer. I think you will get a reply rather quickly. From: K5WA Sent: Friday, September 4, 2020 10:06 AM To: 'Elecraft@mailman.qth.net' Subject: FS: Elecraft PR6 Preamp For those of you picking up legacy K3 rigs recently, you might want to consider this option. The PR6 was designed to help boost 10M and 6M signals as an add-on unit which plugs into the RX IN/OUT connections on the back of the K3 with supplied BNC connectors. There is a power connection and a control so that you can turn on the PR6 by simply pressing the RX ANT button on the front of the K3. Here is a link to the user's manual: https://ftp.elecraft.com/PR/Manuals%20Downloads/PR6_Owners_Manual_Rev_B.pdf $60 or best offer, postpaid to lower 48. Please contact me off list at listed email. 73, Bob K5WA Houston, TX __ 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 gthorn...@thorntonmostullaw.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] Elecraft PR6 Preamp - SOLD
I have one for sale as well. Same deal as Bob. Raj > On Sep 4, 2020, at 2:02 PM, K5WA wrote: > > My PR6 has been spoken for but I also received 3 additional offers to buy a > PR6 so I would encourage anyone that wants to sell theirs, you should post > an offer. I think you will get a reply rather quickly. > > > > From: K5WA > Sent: Friday, September 4, 2020 10:06 AM > To: 'Elecraft@mailman.qth.net' > Subject: FS: Elecraft PR6 Preamp > > > > For those of you picking up legacy K3 rigs recently, you might want to > consider this option. The PR6 was designed to help boost 10M and 6M signals > as an add-on unit which plugs into the RX IN/OUT connections on the back of > the K3 with supplied BNC connectors. There is a power connection and a > control so that you can turn on the PR6 by simply pressing the RX ANT button > on the front of the K3. Here is a link to the user's manual: > https://ftp.elecraft.com/PR/Manuals%20Downloads/PR6_Owners_Manual_Rev_B.pdf > > > > > > $60 or best offer, postpaid to lower 48. > > Please contact me off list at listed email. > > > > 73, > > Bob K5WA > > Houston, TX > > __ > 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...@arrl.net __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] FS: Elecraft PR6 Preamp - SOLD
My PR6 has been spoken for but I also received 3 additional offers to buy a PR6 so I would encourage anyone that wants to sell theirs, you should post an offer. I think you will get a reply rather quickly. From: K5WA Sent: Friday, September 4, 2020 10:06 AM To: 'Elecraft@mailman.qth.net' Subject: FS: Elecraft PR6 Preamp For those of you picking up legacy K3 rigs recently, you might want to consider this option. The PR6 was designed to help boost 10M and 6M signals as an add-on unit which plugs into the RX IN/OUT connections on the back of the K3 with supplied BNC connectors. There is a power connection and a control so that you can turn on the PR6 by simply pressing the RX ANT button on the front of the K3. Here is a link to the user's manual: https://ftp.elecraft.com/PR/Manuals%20Downloads/PR6_Owners_Manual_Rev_B.pdf $60 or best offer, postpaid to lower 48. Please contact me off list at listed email. 73, Bob K5WA Houston, TX __ 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] FS: Elecraft PR6 Preamp
On 9/4/2020 8:05 AM, K5WA wrote: For those of you picking up legacy K3 rigs recently, you might want to consider this option. The PR6 was designed to help boost 10M and 6M signals as an add-on unit which plugs into the RX IN/OUT connections on the back of the K3 with supplied BNC connectors. A good preamp is VERY important if you live or operate with relatively low RX noise on 12, 10, or 6M. For many of us, noise levels can vary a lot from day to day, at different times of day, and even as neighbors turn on/off their many noise sources. The PR6 preamp is a very good one. I've not used it -- I already owned an ARR GasFET preamp for 6M, which works well down to at least 12M, and used it at the RX Out/In patch point. When the newer version of the transverter was introduced for the K3S, I upgraded to it and loaned the ARR to a friend. The PR6 is a LOT cheaper than replacing the transverter board. :) My guess based on a lot of listening on 6M when my noise level is low is that the NF of the PR6 is within a fractional dB of the ARR GasFET -- in other words, quite good. 73, Jim K9YC __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
[Elecraft] FS: Elecraft PR6 Preamp
For those of you picking up legacy K3 rigs recently, you might want to consider this option. The PR6 was designed to help boost 10M and 6M signals as an add-on unit which plugs into the RX IN/OUT connections on the back of the K3 with supplied BNC connectors. There is a power connection and a control so that you can turn on the PR6 by simply pressing the RX ANT button on the front of the K3. Here is a link to the user's manual: https://ftp.elecraft.com/PR/Manuals%20Downloads/PR6_Owners_Manual_Rev_B.pdf $60 or best offer, postpaid to lower 48. Please contact me off list at listed email. 73, Bob K5WA Houston, TX __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
[Elecraft] K3 External speakers
Searched the archive however can't find info for speakers set to 2 and no sub receiver. Yesterday I got audio from both speakers, and today only one side is working. I have the correct adaptor and speakers are 8 Ohms unamplified. Everything checks good on the bench. Could something be wrong in the radio or something I'm missing in set up? I've read the manual and Cady book a few times each and can't seem to figure this out. Suggestions or advise Thanks __ 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] KPA-1500 SWR fault above 700-800 watts on 160m
I’ve seen no mention of modeling and/or measurements performed on any of these antennas to see if they are within the match range of the KPA1500. Jim ab3cv On Sep 4, 2020, at 2:29 AM, Victor Rosenthal 4X6GP wrote: I had an interesting experience trying to use a balun in a very demanding situation. I'll describe it, and at the end I have a question. Antenna was a dipole with total length of 10m fed with approximately 480 ohm open-wire line. Line length was 10m. I was trying to use this antenna on 40m with a power of 1200w. The first attempt was to use a 5kw DX Engineering 1:4 balun in the shack between the open line and coax, feeding the coax with an unbalanced T-network tuner. There was a lot of RFI with computers, etc. in the shack. The antenna seemed to pick up a lot of local noise. During a period of contest operating, the balun overheated, causing soaring SWR and ultimately internal arcing. Next I added two capacitors in series with the line to tune out the reactance (the 1/4 wavelength line inverted the capacitive reactance at the feedpoint of the antenna making it inductive at the shack end). This eliminated the overheating (it ran a little warm), but the RFI problem remained. Then I rewired the balun to a 1:1 configuration. This seemed to help a little with the RFI. It made tuning easier. But the antenna was still noisy. At this point I had some really good luck and was able to purchase an old Johnson KW Matchbox, which is a link-coupled balanced tuner. I replaced the T-network tuner, the balun, and the series capacitors with this unit. The antenna is now MUCH quieter and RFI problems have been eliminated. The lesson I learned is that baluns don't work very well with high SWR, especially when the impedance is very reactive. And now for my question: did I permanently damage my balun when it overheated? If so, what is the mechanism of damage? I took it apart and didn't see any obvious signs. 73, Victor, 4X6GP Rehovot, Israel Formerly K2VCO CWops no. 5 http://www.qsl.net/k2vco/ . > On 03/09/2020 19:05, Jim Brown wrote: > A choke inserted into a poorly > matched or un-matched line is much more likely to overheat and fail. > Dissipation (heating) is addressed in the 2018 Cookbook. > 73, Jim K9YC __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to j...@jtmiller.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] Elecraft] Congrats to the Elecraft Team on K4 Ship
Where are you getting the information that the first batch of K4's have shipped? Yesterday's Elecraft stated the following: Our first K4s are set to ship the second week of September. Our plan to ship in late August changed with the CZU Lighning Complex. The fire is among the top 20 most destructive fires in California state history with more than 1,100 structures burned in Santa Cruz County. We have employees who had to evacuate and help family evacuate; and one employee who lost his home to the fire. John KK9A Steve Dyer W1SRD wrote: Facing many headwinds the team got the first batch out the door with what looks to be the new platform for serious HF operators. Well done to everyone involved and looking forward to seeing this product evolve and improve. Shipping any product is a tremendous amount of work and the Elecraft team has done it many times. Rare indeed. 73/GL, Steve W1SRD __ 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] KPA-1500 SWR fault above 700-800 watts on 160m
I had an interesting experience trying to use a balun in a very demanding situation. I'll describe it, and at the end I have a question. Antenna was a dipole with total length of 10m fed with approximately 480 ohm open-wire line. Line length was 10m. I was trying to use this antenna on 40m with a power of 1200w. The first attempt was to use a 5kw DX Engineering 1:4 balun in the shack between the open line and coax, feeding the coax with an unbalanced T-network tuner. There was a lot of RFI with computers, etc. in the shack. The antenna seemed to pick up a lot of local noise. During a period of contest operating, the balun overheated, causing soaring SWR and ultimately internal arcing. Next I added two capacitors in series with the line to tune out the reactance (the 1/4 wavelength line inverted the capacitive reactance at the feedpoint of the antenna making it inductive at the shack end). This eliminated the overheating (it ran a little warm), but the RFI problem remained. Then I rewired the balun to a 1:1 configuration. This seemed to help a little with the RFI. It made tuning easier. But the antenna was still noisy. At this point I had some really good luck and was able to purchase an old Johnson KW Matchbox, which is a link-coupled balanced tuner. I replaced the T-network tuner, the balun, and the series capacitors with this unit. The antenna is now MUCH quieter and RFI problems have been eliminated. The lesson I learned is that baluns don't work very well with high SWR, especially when the impedance is very reactive. And now for my question: did I permanently damage my balun when it overheated? If so, what is the mechanism of damage? I took it apart and didn't see any obvious signs. 73, Victor, 4X6GP Rehovot, Israel Formerly K2VCO CWops no. 5 http://www.qsl.net/k2vco/ . On 03/09/2020 19:05, Jim Brown wrote: A choke inserted into a poorly matched or un-matched line is much more likely to overheat and fail. Dissipation (heating) is addressed in the 2018 Cookbook. 73, Jim K9YC __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
