[Elecraft] KPA1500 Questions + RFE
Dear Brain Trust: 1) Is there a downside to using a very long FAN DWELL TIME, other than noise? I am trying to get my amp to run cooler. 2) Does anyone offer a KX3 to KPA1500 serial cable, and a K2 to KPA1500 serial cable for sale? No, I can no longer build them myself, even though they are simple. 3) Is there a way to command via macros the KPA1500 to run the fans at normal speed + 1 as the amp starts to heat? Can this choice be implemented in firmware? 73, Eric WD6DBM __ 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] PX3 signal artifact - still seeking a solution
Jim, This sounds a lot like a problem I was experiencing with my KX3 while operating FT8. I was getting pulsating noise on the signal sent to the KX3 from my MacBook Pro laptop. I tried all the suggestions including bonding the computer and putting ferrites on all signal and power leads with no improvement. I finally noticed that Elecraft KXUSB cable connected from PX3 to the laptop for rig control has an LED which blinks at a rate (almost exactly once per second) with corresponds to the noise heard. On the MacBook Pro I was using a port adapter which allows connecting a HDMI cable, a USB cable and an apple Lightning power cable to one of the 4 USB-C (Lightning) ports on the laptop. By simply moving the power cable from the adapter to a separate port the noise completely disappeared. Since you mention that your foul signal disappears when you disconnect the USB cable from your laptop I suspect you may be suffering the same problem. In my case, apparently when the LED pulses some of the power supply noise is coupled into the USB port and contaminates the signals. I was worried about transmit signals and did not see if any artifacts were showing on the PX during receive. Phil -AA2EA Louisville KY > >> On Jul 21, 2020, at 9:07 AM, James Smallwood via Elecraft >> wrote: >> >>> My station consists of a KX3 / PX3 connected via 100 ft of DX Engineering >>> RG-8/U Low-Loss coax through an Alpha Delta antenna switch to a Balun >>> Solutions 4:1 Unun tied to a 31 ft vertical antenna. The antenna and unun >>> are grounded via a copper rod driven 3 feet into sandy soil in South >>> Florida. The entire station is grounded to the ground system of my house by >>> a single copper ground wire which is about 7 ft long. Each piece of station >>> gear (including the antenna switch) is separately grounded to a 2 foot >>> copper pipe tied to that ground. I run the station off a 12v 3Ah Bionenno >>> LiPO battery. >>> >>> My question concerns a visual signal artifact of about 5-7dB strength that >>> appears on my PX3, just off the frequency to which I am tuned. The artifact >>> has 2 peaks when viewed at higher resolution. The artifact (which has no >>> audio component) appears to be closely associated with a new >>> Elecraft-provided USB cable connecting my HP Pavillion PC to my PX3. Once >>> the USB cable is disconnected from the PC, the artifact disappears from the >>> PX3 display. As soon as the cable is reconnected, the artifact >>> reappears.The artifact appears regardless of other signals being present. >>> >>> I recently purchased and installed a range of Palomar Engineers ferrite >>> snap-ons (>>Mix 31<<) which failed to mitigate this artifact. I coiled as >>> much of the USB cable as possible then clipped on the ferrite beads. This >>> had no effect. I placed additional ferrite beads on other wires and cables >>> associated with my station, but observed no impact on the artifact. >>> >>> I am wondering whether I may need a different mix ferrite. Based on what I >>> have shared here, do other solutions present themselves? >> >>> Thanks for sharing any insights or suggestions. >>> >>> Jim - N7RCS >> __ __ 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 screen grab COM port conflict.
Is there a way to use the P3 utility image grabs -while connected to the K3S using the USB to computer - then the CBLP3Y RJ-45 to DE9s and DE9P Y adapter while using N1MM logging program. ALSO __Is there a way to use the P3 utility image grabs -while connected to the K3 if the RS232 is being used by a logging program (N1MM) as well ? Can a "port sharing" utility be used -and if so which spigots ??? >From what I read ib Cady'd book it appears with K3S you CAN do a screen grab >to a USB stick in the P3 USB connector if you have the SVGA option in the P3 - this would be usable - BUT does that still result in the COM port conflict with N1MM ??? Guess this whole thing is moot I just checked and the SVGA kit is not available. Hank K7HP __ 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 com port problem solved
Problem solved, thanks for the advice. The jumper loop from the K3 to the P3 had a bad connection to the upper PC connector, therefore the outside world could not see my K3 or P3. I found it by trying the P3 utility and had the same problem which pointed me to that cable. Howard AE3T __ 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] K3s USB com port no longer working
Could be the update have scrambled your port assignments such that you now have a conflict which wasn't there before? Buck, k4ia Honor Roll 8BDXCC EasyWayHamBooks.com On 7/22/2020 12:31 PM, Mike Harris via Elecraft wrote: Under what circumstances did this loss of communication happen? If the PC sees the K3 USP port (com?) are the programmes still pointing at it? Regards, Mike VP8NO On 22/07/2020 12:59, Howard Sherer wrote: The USB com port on my K3s is still being seen when connected to my computer but will no longer connect to any program. I have re booted the computer 2 times and power cycled the K3 and no change. Any ideas where I should look? Howard AE3T __ 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 radiok...@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] K3s USB com port no longer working
Try a cold reboot meaning, turn off the computer, just don't restart it. Try plugging the USB into a different USB jack on the computer. Then turn the computer on. Buck, k4ia Honor Roll 8BDXCC EasyWayHamBooks.com On 7/22/2020 11:59 AM, Howard Sherer wrote: The USB com port on my K3s is still being seen when connected to my computer but will no longer connect to any program. I have re booted the computer 2 times and power cycled the K3 and no change. Any ideas where I should look? Howard AE3T __ 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 radiok...@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] K3s USB com port no longer working
Under what circumstances did this loss of communication happen? If the PC sees the K3 USP port (com?) are the programmes still pointing at it? Regards, Mike VP8NO On 22/07/2020 12:59, Howard Sherer wrote: The USB com port on my K3s is still being seen when connected to my computer but will no longer connect to any program. I have re booted the computer 2 times and power cycled the K3 and no change. Any ideas where I should look? Howard AE3T __ 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] Tired of fretting about the K4.....see what a KX2 looks like at 12, 800 ft
Thanks for the write-up and especially the photos. Takes me back to my Sierra hiking days mid-1970's! 1977 I logged nearly 500 miles in the mountains (every weekend). I think there were less crowds back then. Solo hiking was quiet-serene. I also backpacked with the JPL Hiking Club back then. We sumitted Mt. Whitney 14,000+ but that is a "walk up" hike. But you really feel the altitude above 13,500 where we dropped our packs. I hiked with 60-lbs back then. Only took a 2m-HT in those days. Made SF area from Lassen crater rim. Wish I could still do the hiking but only drive the high roads, now. Where we live in AK the terrain-climate is similar to 9,000 feet in the Sierra but we are only 138-foot ASL. 73, Ed - KL7UW http://www.kl7uw.com Dubus-NA Business mail: dubus...@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] Using the KPA1500 with an ICOM IC-7300
Tom - There is no "XCVR SERIAL HOST" setting in the 7300. Are you perhaps referring to the "CI-V Transceive" setting? 73 Lyn, W0LEN -Original Message- From: elecraft-boun...@mailman.qth.net [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Tom Whiteside Sent: Wednesday, July 22, 2020 11:34 AM To: elecraft@mailman.qth.net Subject: Re: [Elecraft] Using the KPA1500 with an ICOM IC-7300 Thanks for all the helpful suggestions - particularly from Dick K6KR and Rob from Elecraft Technical support. The KPA1500 tracking an IC-7300 issue has been solved! The trick was making sure XCVR SERIAL HOST is disabled. 73, Tom N5TW Message: 19 Date: Tue, 21 Jul 2020 17:16:32 -0500 From: "Tom Whiteside" To: Subject: [Elecraft] Using the KPA1500 with an ICOM IC-7300 Message-ID: <00b901d65fac$973b0710$c5b11530$@ecpi.com> Content-Type: text/plain; charset="us-ascii" My early vintage K3 headed back to Elecraft for repairs this week and I'm trying to get my ICOM IC-7300 to fully interface with the KPA1500. I have followed the instructions Elecraft includes in the manual plus a great video from WX0V - I can key the amp just fine but the amplifier is not tracking band changes by the IC-7300.I have the stereo cable going between the KPA-1500 XCVR Serial and the IC-7300 CI-V Remote control jack and the KPA1500 key-in RCA plug connected to the IC-7300 send control jack. On the KPA1500, I have the Serial Speed host set to 19200bps and the Serial Speed XCVR also set to 19200. Not sure what the Serial Speed Host is for - it is not mentioned in the instructions for the IC-7300. Radio Type is ICOM. On the IC-7300, the CI-V USB baud rate is also set for 19200, CI-V Transceive is on and the CI-V Output is on. I have tried other baud rates. Anyone have any ideas? Thanks! Tom N5TW __ 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 l...@lnainc.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] (no subject)
73, Ed - KL7UW http://www.kl7uw.com Dubus-NA Business mail: dubus...@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] K3s USB com port no longer working
Howard, Does K3 Utility connect? Is the RS232 menu parameter set to USB? If no help there, contact support. 73, Don W3FPR On 7/22/2020 11:59 AM, Howard Sherer wrote: The USB com port on my K3s is still being seen when connected to my computer but will no longer connect to any program. I have re booted the computer 2 times and power cycled the K3 and no change. Any ideas where I should look? __ 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] Using the KPA1500 with an ICOM IC-7300
Thanks for all the helpful suggestions - particularly from Dick K6KR and Rob from Elecraft Technical support. The KPA1500 tracking an IC-7300 issue has been solved! The trick was making sure XCVR SERIAL HOST is disabled. 73, Tom N5TW Message: 19 Date: Tue, 21 Jul 2020 17:16:32 -0500 From: "Tom Whiteside" To: Subject: [Elecraft] Using the KPA1500 with an ICOM IC-7300 Message-ID: <00b901d65fac$973b0710$c5b11530$@ecpi.com> Content-Type: text/plain; charset="us-ascii" My early vintage K3 headed back to Elecraft for repairs this week and I'm trying to get my ICOM IC-7300 to fully interface with the KPA1500. I have followed the instructions Elecraft includes in the manual plus a great video from WX0V - I can key the amp just fine but the amplifier is not tracking band changes by the IC-7300.I have the stereo cable going between the KPA-1500 XCVR Serial and the IC-7300 CI-V Remote control jack and the KPA1500 key-in RCA plug connected to the IC-7300 send control jack. On the KPA1500, I have the Serial Speed host set to 19200bps and the Serial Speed XCVR also set to 19200. Not sure what the Serial Speed Host is for - it is not mentioned in the instructions for the IC-7300. Radio Type is ICOM. On the IC-7300, the CI-V USB baud rate is also set for 19200, CI-V Transceive is on and the CI-V Output is on. I have tried other baud rates. Anyone have any ideas? Thanks! Tom N5TW __ 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 USB com port no longer working
The USB com port on my K3s is still being seen when connected to my computer but will no longer connect to any program. I have re booted the computer 2 times and power cycled the K3 and no change. Any ideas where I should look? Howard AE3T __ 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] Dual instances of K4 remote software on one PC
This may be a Wayne question but does anyone know if the remote software for a K4 is capable of two instances running simultaneously on one PC? I’d rather not have to have a VM running the second instance but I may have to if the software can’t distinguish between two radios. I’m keeping busy these K4-waiting-days by completing as much as possible on my remote SO2R station so I can simply drop a pair of K4s inline and be up and running pretty quickly after they arrive. Wishful thinking, I’m sure. Thanks, Bob K5WA __ 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] PX3 signal artifact - still seeking a solution
Hi Grant, The shield only shields electrostatic fields and does not shield the magnetic field from the inner conductors. If the garbage is on the USB signal lines and common mode (likely), the ferrite will still be effective. If the RFI is transverse (or differential) mode, then the external fields from those signal conductors will largely cancel and ferrite will have little or no effect. BTW, Pro Audio Engineering is a first-line Fair-Rite dealer and we have good stock on many mix 31 parts at good prices in small quantities. Cheers & 73, Howie / WA4PSC www.proaudioeng.com If the cable is shielded, and the garbage is on the PC's USB signal lines, an external ferrite won?t do any good. I don?t know if the cable is shielded or not, but if it is, then the garbage may not be on the shield ? and perhaps the USB isolator might be worth a try. Maybe. I don?t know anything about that device ? Grant NQ5T __ 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] KPA1500 with K4 tracks VFOs with 1 kHz resolution
Thanks for that suggestion, Dave. I am, in fact, using an IC-7300 as exciter but ALC does not appear to be the problem. The 7300 > KPA500 > KAT500 chain has always been flawless for me until this new version of Vara was introduced, and I suspect it is indeed the new modulation scheme in Vara v4. I had a suggestion from Dick Dievendorff to try different FCCS values, and it seems that changing it from the default setting of 12 to a higher level, in this case 300, solves the problem without introducing other issues. I will continue to check this and report if I need to refine that setting. Vara 4 has already gone thru an update, so I suspect there may have been some issues found. 73 Lyn, W0LEN -Original Message- From: rocke...@gmail.com [mailto:rocke...@gmail.com] Sent: Tuesday, July 21, 2020 6:46 PM To: l...@lnainc.com; 'Wayne Burdick'; 'Andy Durbin' Cc: 'Elecraft Reflector' Subject: RE: [Elecraft] KPA1500 with K4 tracks VFOs with 1 kHz resolution I have seen this behavior using a non-Elecraft exciter (Kenwood) and KPA1500 amp on digital modes. In my case it was right after connecting the new radio and TX audio levels were too high, causing splattering. The freq counter in the amp wasn't happy. Lowered audio level to where there is no ALC deflection on the exciter and problem never happened again. Just a thought but check your ALC when on WinLink. You should not see any ALC indication. Dave wo2x -Original Message- From: elecraft-boun...@mailman.qth.net On Behalf Of Lyn Norstad Sent: Tuesday, July 21, 2020 5:40 PM To: 'Wayne Burdick' ; 'Andy Durbin' Cc: 'Elecraft Reflector' Subject: Re: [Elecraft] KPA1500 with K4 tracks VFOs with 1 kHz resolution Interesting ... I am seeing issues with my KAT500 not holding a setting, but jumping to (and displaying) a frequency 200 - 300 KHz lower unpredictably during a Winlink Vara session. It always comes back to the correct frequency when the rig is transmitting, but has to go thru a short relay-clatter routine to get there. This is on 80, 40 and 30 meters (all I have tested so far). For example, if the dial frequency is at 7101 the tuner can't seem to decide whether to sit on 7104 or 7096. That doesn't seem to cause a problem as much as when it suddenly drops to 6874, 6864 or 6856. I am seeing similar behavior on 80m and 30m. I recently did a total reset and reloaded the firmware (v01.75). Any thoughts? Bin width? Thx. 73 Lyn, W0LEN Message delivered to rocke...@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
