Re: [Elecraft] KPA 1500 fan speed at turn off
I just keep it on until the temp dies down. If I'm in a hurry to shut it off I turn the fans on manually to cool it faster. BillK3WJV On Thursday, January 21, 2021, 5:59:20 PM EST, Howard Sherer wrote: Wouldn't it be a good idea to keep the fan turned on in the KPA-1500 after you power it off till the internal temperature reaches its lower temp? Howard __ 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 k3...@yahoo.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] K3: CW characters sound very hard / short
What does he have for config/TX DLY? Try resetting it to default 008. High values of TX DLY cause light CW weight. Dave Hachadorian, K6LL Yuma, AZ -Original Message- From: dl2ki Sent: Thursday, January 21, 2021 11:22 PM To: elecraft@mailman.qth.net Subject: [Elecraft] K3: CW characters sound very hard / short Hi, a friend tells me that the CW characters sound very hard / short on his K3 in the standard mode "CW QRQ = OFF". This makes the characters at higher speed ~50WPM vy hardly readable by the QSO partner. Experiments with "CW WGHT" do not lead to success. At higher speeds, my friend therefore switches to the mode "CW QRQ = On", where the effect does not occur. However, some functions (RIT, SPLIT) are unfortunately not available there. Therefore, this is not an ideal solution. So far I have not found any clues to help him solve the problem. Are there other setting possibilities to solve this issue, or can there also be a hardware problem here? 73, Wolfgang DL2KI -- 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 k6ll.d...@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] KX3 buzz if power up on transverter band
https://github.com/drewarnett/kx3-firmware-issues/issues/1#issuecomment-765750316 On Wed, Jan 13, 2021 at 4:05 AM Drew Arnett wrote: > > Elecraft reported that they were able to reproduce the problem before > the end of October. > > Haven't heard anything more, yet. > > On Sat, Sep 12, 2020 at 3:51 PM Drew Arnett wrote: > > > > Anybody have a chance to try this? Would be useful to know if someone > > else cannot. Would be equally useful to know if someone can. Still > > waiting to hear back from Elecraft. > > > > Thanks, > > > > Drew > > n7da > > > > On Fri, Aug 21, 2020 at 3:22 PM Drew Arnett wrote: > > > > > > Oscilloscope "screenshot" of the offending waveform: > > > > > > https://drive.google.com/drive/folders/1-g9Met098lhncAcMtAAOvxWFDjf0NU_w?usp=sharing > > > > > > Can anyone try to reproduce this to rule out or confirm my suspicion > > > it might be caused by firmware bug? > > > > > > You can imagine how fast I knocked my headphones off! :-O :-) > > > > > > Thanks and best regards, > > > > > > Drew > > > n7da > > > > > > On Wed, Aug 19, 2020 at 2:49 PM Drew Arnett wrote: > > > > > > > > Hi, > > > > > > > > Weird problem. Anyone else try this and do or don't see this? > > > > > > > > Just got my KX3 back from repair. This included an upgrade to the > > > > latest firmware. (Makes sense. Requirement for production test. I > > > > hadn't upgraded to the very latest, because I had no need for the > > > > latest improvements.) > > > > > > > > Set the radio back up for 10368 to 50 MHz transverter use on XVTR1 > > > > band. Now, if I power up the radio when it was shut down on the XVTR > > > > band, there is a crazy loud buzz on the audio output (and > > > > corresponding response of the S meter.) If I switch to any other > > > > non-XVTR band and then power up, no problem even if switching then to > > > > the XVTR band. > > > > > > > > FW is now 2.90/1.52I got the radio back just before the 10 GHz > > > > contest, so only made minimal changes to settings from the cleared > > > > state it came back in. Changes made: > > > > AFX mode off (was delay) > > > > ATU bypass (can't remember if it came back this way or not. XVTR is > > > > good 50 ohm load.) > > > > BAT CHG off (was not inst) > > > > BKLIGHT off (was on) > > > > MIC BIAS off (I think came back on; used dynamic mic during contest) > > > > MIC BTN Ptt (was up/down) > > > > TX DLY 10 (was 5. abundance of caution as 5 is more than enough for > > > > the 10 GHz rig I'm running) > > > > XV1 on > > > > XV1 RF 10368 > > > > XV1 IF 50 > > > > XV1 PWR 0.1 > > > > XV1 OFS (set in field) 1.20 > > > > XV1 ADR trn1 > > > > set the clock. :-) > > > > turned on the hidden in the menus CW-in-SSB feature > > > > > > > > I know I turned on or off a couple of front panel things as they left > > > > it. Don't remember. Stuff like vox, pre, nr or nb. Definitely > > > > adjusted mic gain and compression and keyer speed. :-) > > > > > > > > RX ISO changed to on during the contest, but problem occurs with it on > > > > or off > > > > > > > > What does the headphone jack output look like? Power up in bad state. > > > > Set volume control to 20. With no load other than 10X scope probe, > > > > the AC component is identical for left and right. Tip has about 0 V > > > > DC offset. Ring has about + 0.5 V DC offset. AC component looks like > > > > a the differential of a square wave. Peak to peak amplitude is 220 > > > > mV. (This follows volume control. Didn't check to see if DC offset > > > > follows volume control.) 12.2 millisecond repetition rate for > > > > positive and negative pulses. Negative pulse leads positive pulse by > > > > 2.2 ms, so 10 ms from positive pulse to negative. Very small AC > > > > ripple on that with a period of about 0.4 ms. > > > > > > > > I was very happy to find a sequence to avoid the problem (as described > > > > above.) To trouble shoot, I tried to rule out a number of things. > > > > Unplugged ALL cables from the KX3. That did not resolve. Tried > > > > external 12.4 V (battery on hand) and internal battery removed. Tried > > > > internal battery (charged) and nothing plugged in. No dice. > > > > > > > > Given that it's just back from repair, that sequencing gets it in a > > > > bad state, FW was upgraded to a new version, and audio path goes > > > > through FW, seems reasonable to ask if this is a known FW issue or if > > > > someone can try to reproduce this. > > > > > > > > Hoping to figure this out before the Sept VHF, the Sept 10 GHz contest > > > > weekend, and of course the HF contests coming up later this fall. :-) > > > > With my workaround, I was able to participate in the Aug 10 GHz > > > > weekend without interruption. I ran a W1GHZ XVTR barefoot (+5 dBm > > > > Pout) for best DX of 379 km. How much fun can you have with a KX3? > > > > Lots! :-) > > > > > > > > Thanks and best regards, > > > > > > > > Drew > > > > n7da __
[Elecraft] KX2 Sold
My KX2 serial #1099 has been sold. Jim Bennett Folsom, CA K7TXA (ex W6JHB as of 1/22/2021) Being retired doesn't mean I'm not part of the work force - just that I'm not forced to work! __ 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] K4 QSK
I've had a chance to try the latest improvements to QSK on the field test K4. It's great, close to the theoretical optimum of sounding like a code practice oscillator running in the background! Remarkably, it sounds the same in TEST mode as when transmitting 100W barefoot, 1200W (ICOM 1000 vacuum relay), or 1500W (KPA1500 PIN diode), internal keyer or external WinKey emulator. No, it's not perfect. I don't hear much received signal between dits at 50 WPM, but I do hear something noticeable when there's a signal there. And at a more realistic 38 WPM, sending actual code, I can tell *immediately* when there's something on frequency. Wayne tells me that he has a few more tricks up his sleeve that can make it better yet, but it's already among the best QSK setups I've ever experienced. Way to go, Elecraft! /Rick N6XI -- Rick Tavan Truckee and Saratoga, CA __ 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] KXPA100 Mount Screws
Joe, After several trips to a hardware store, I found that 10-32 screws fit my early unit (#425). I have two different pdf manuals that indicate 8-32 and 6-32 ?! YMMV. 73, Henry - K4TMC On Fri, Jan 22, 2021 at 12:06 PM Joseph Shuman via Elecraft < elecraft@mailman.qth.net> wrote: > There are 4 locations on the lower sides of the cover for mount screws. > Anyone know the size? Not spec’d in the manual. > > Keeping Watch- > shu > > Joe Shuman, NZ8P > __ > 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 kilo4...@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
[Elecraft] FS: KX2 Serial #1990 With Built-In Tuner
OK - last call before I put this up on eBay (ughhh…) Selling my KX2 serial #01990 with built-in KXAT2 antenna tuner, Fred Cady KX2 book, right-angle BNC connector and power cable with Anderson Power Pole connectors. The KX2 and tuner work perfectly - no scratches or dents. Has never been used on any digital modes (other than CW!) and has never been driven really hard. Book is in brand-new condition. Cost new would run you $1,080 plus tax & shipping. Asking $800 shipped USPS Priority mail to any US address. Contact me off-list if you are interested. Will accept PayPal, cash, or cleared personal check. __ 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] K4 RBN node
I wonder if it would be feasible for the K4 to be configured with the ability to run it as a node in the RBN network with just a push of a button. Then there could be perhaps hundreds more reverse beacon monitoring stations on the air at any given time... 73, Drew AF2Z __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
[Elecraft] P3 SVGA Option module
Looking for a P3 SVGA option module. Contact me if you have one for sale. W7SNR Bob Hughes b...@fctaz.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] KXPA100 Mount Screws
There are 4 locations on the lower sides of the cover for mount screws. Anyone know the size? Not spec’d in the manual. Keeping Watch- shu Joe Shuman, NZ8P __ 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] K3s For Sale
__ 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: CW characters sound very hard / short
Hi, a friend tells me that the CW characters sound very hard / short on his K3 in the standard mode "CW QRQ = OFF". This makes the characters at higher speed ~50WPM vy hardly readable by the QSO partner. Experiments with "CW WGHT" do not lead to success. At higher speeds, my friend therefore switches to the mode "CW QRQ = On", where the effect does not occur. However, some functions (RIT, SPLIT) are unfortunately not available there. Therefore, this is not an ideal solution. So far I have not found any clues to help him solve the problem. Are there other setting possibilities to solve this issue, or can there also be a hardware problem here? 73, Wolfgang DL2KI -- 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
Re: [Elecraft] REMOTE OPERATION
Hi Paul, You'll definitely be able to use the K4D on CW remotely. We're still working on some aspects of full remote control, and will post about our progress to the list periodically. 73, Wayne N6KR > On Jan 21, 2021, at 7:24 PM, Paul Kobetz wrote: > > Hello Elecraft folks or anyone who is knowledgeable.. > I hv a K4D on order since 10/19 .my hope was assured by Elecraft at the > Pacificon show when they demo'd the K4 with no other units involved for > remote operation. I am disabled and vy old and was hoping to be able to > operate my new K4D on CW remotely. If it is to be unlike that and require a > K4/0 unit pse pse let me know asap!! If I need to order one then let me > know that too.. The uncertainty for over a year really troubles me. My 1500 > and KX3 await their new brother.. > TU Sirs > vy 73 > de K2HZO Paulk > __ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft@mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to n...@elecraft.com __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] a bit of geek humor
On 2021-01-21 15:22:-0800, Joe K2UF wrote: > By coincedense I have one for sale. > > I am going to need your SS# and a bank account # with user id and password. >If you reponse within the next ten minutes I will enclose the deed for a >beautiful bridge in brooklyn N.Y. > > (Sorry folks I could not resist) > >73 Joe K2UF I posted it as a bit of humor, but I actually hear many hams say they are confused by return loss...they are not alone, apparently, because from the IEEE..."Perhaps over 30% of all antenna papers submitted to the Transactions in the past twelve months have used return loss incorrectly." (2009), so I suppose Disney should not be called too much to task ;-) I admit that I found the term confusing for a while, until I did the math. Then it made sense, but I still think that it is an awkward term, and counterintuitive. https://ieeexplore.ieee.org/document/5162049?arnumber=5162049 ~R~ 72/73 de Rich NE1EE The Dusty Key On the banks of the Piscataqua __ 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] Test email...
Too quiet here... -- 73, and thanks, Dave (NK7Z) https://www.nk7z.net ARRL Volunteer Examiner ARRL Technical Specialist, RFI ARRL Asst. Director, NW Division, Technical Resources __ 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] [K4] IF Out
The K4 doesn't have an IF, so it can't have an IF output! Did you mean the K4D, although, admittedly, it might use the same box? -- David Woolley On 21/01/2021 00:45, john wrote: The K4 does not appear to have an IF Out connector on the rear panel, like the K3. Can the XVTR IF Out be configured to provide this functionality? __ 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
