[Elecraft] First impressions of KPA1500 #113
Arrived May 5th and setup was easy. I’m noticing periodically a momentary higher than normal SWR indication on the SWR bar graph. And I’m still trying to get used to the ATU. I’m experiencing the ATU having to make adjustments sometimes at the start of a transmission after the ATU has already been properly setup for the antenna and band. Is anyone else experiencing anything this or am I doing something wrong? Les, N1SV __ 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] OT: For sale HFS-1.5 HF Sampler/Coupler -30dB
Hi all, I have this for sale, shipped USPS anywhere in the US for $50. It sells new for $125. This is *not* a directional coupler, just a sampler, useful for getting a scope or spectrum analyzer view of your transmitted signal. Here is the technical specification: http://preciserf.com/shop/hfs-1-5/. I prefer payment via Paypal. AB2TC - Knut -- 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] KPA500 installtion with ICOM 7300
Andy, If you do connect the ALC, check the maximum drive power that you need for each band and do not exceed it. In other words, do not drive the amp into ALC. Using ALC to control the transceiver drive power will result in overdrive and distortion. You can hear that distortion on the bands. Should you upgrade to an Elecraft K3, you can set a per band drive level for when the amplifier is active and when it is bypassed. 73, Don W3FPR On 5/10/2018 5:17 PM, ANDY DURBIN wrote: "That's the point. The ALC cable protects the KPA-500 when the operator "spaces" and leaves the exciter power control at full power (100+ Watt) level." My experience, and I have 10 Hz logger data, shows that the amp alarms, sets fault FL06, and drops into standby mode with no change in the ALC voltage level being observed. I didn't set out to investigate this but my logger was running when I accidentally tripped FL06 on 6 meters this afternoon. It appears to me that ALC only provides protection if the normal over-drive protections fail. Currently the ALC voltage only feeds my logger and is not connected to my TS-590S. 73, Andy k3wyc __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to donw...@embarqmail.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] KPA500 installtion with ICOM 7300
"That's the point. The ALC cable protects the KPA-500 when the operator "spaces" and leaves the exciter power control at full power (100+ Watt) level." My experience, and I have 10 Hz logger data, shows that the amp alarms, sets fault FL06, and drops into standby mode with no change in the ALC voltage level being observed. I didn't set out to investigate this but my logger was running when I accidentally tripped FL06 on 6 meters this afternoon. It appears to me that ALC only provides protection if the normal over-drive protections fail. Currently the ALC voltage only feeds my logger and is not connected to my TS-590S. 73, Andy k3wyc __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] More KPA 1500's out there...
#0157 just showed up here this morning. Ordered it in that first 24 hour window before the general announcement. Love everything about it so far. Ron, WA7JAY From: rboa...@incentre.net Sent: Wednesday, May 9, 2018 9:27 AM To: elecraft@mailman.qth.net Subject: [Elecraft] More KPA 1500's out there... For those tracking these things. KPA1500 #146 safely arrived yesterday. Ordered August 25. Glad to see that Elecraft sales are doing well. Randy VE6RMB __ 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 rbroer...@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] LIN IN level varies
Hello Don, LINE 20. And ALC 4 bars with 5th one flickering, as was recommended an aeon ago. Oh, COMP 0, although I don't think that has an effect on DATA A. It is/was frustratingly intermittent, making fault finding a royal pain. So far this evening with the new microcode the K3 is behaving itself. 73, Alan G3XAQ On 10/05/2018 21:37, Don Wilhelm wrote: Alan, Where do you have the LINE gain set? It should be somewhere at a mid-range setting. If it is set to the low or high regions, set it mid-range and adjust the audio level with your soundcard volume control in the computer. 73, Don W3FPR On 5/10/2018 5:58 AM, Alan Ibbetson wrote: I'm an infrequent user of data modes. I'm trying to use FT8 with the latest version of the WSJT-X software. Sound card input is via LINE IN. I'm using DATA A mode. Everything works OK on transmit except that intermittently the K3 output falls to zero even though the sound card audio output level isn't changing. The VOX stays on, so the K3 is "hearing" the audio. ALC usually but not always falls to zero from the 4 bars level. Even weirder, if I turn the MIC gain (LINE) down to zero and back up again the output and ALC come back up to normal. -- Alan Ibbetson a...@g3xaq.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] KPA500 installtion with ICOM 7300
Don is correct (as usual). The KPA will first see the band change, perform that task, then try to amplify at the desired frequency. If it then sees a bad reflected power level it will wait for the KAT to do something (which means removing PTT, then performing its own correction, then re-enabling PTT). If it still sees a bad reflected power level (perhaps there is no KAT), then it will start the remediation process which may end in a fault. Note that the KPA500 watches reflected power, not SWR (unless SWR is _really_ high). This means that at full output it will object to SWR over about 2:1, while at lower power (say 300 watts), it will allow a higher SWR. Reflected power over about 50 or 60 watts is where it starts the remediation process.That process includes inserting attenuation at the front end (which should also lower the reflected power level) and ultimately in a fault if the attenuation doesn’t do its task or the reflected power is deemed way to high to handle. So the real answer is that unless you send CW extremely slowly, the KPA500 will perform the band switch and continue monitoring the signal during that first dit, but you probably will not see anything like a fault until many characters down the QSO. Enjoy the KPA500! 73, Jack, W6FB > On May 10, 2018, at 7:20 AM, Don Wilhelm wrote: > > John, > > The amp is bypassed if the KAT500 needs do do any tuning or switching, so I > suspect the amp will not fault. > > That is why you run the keying line first to the KAT500 and then from the > KAT500 to the KPA500, so the tuner can disable the amp. > > 73, > Don W3FPR > > On 5/10/2018 9:31 AM, j...@kk9a.com wrote: >> I concur that the RF sense works very well, at least it does with an >> external antenna switch and reasonably good antenna SWR. I am not sure >> what happens if you also use the KAT500 as an antenna switch or your >> untuned SWR is very bad. Does the amp fault during this first dit? > __ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft@mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to jackbrin...@me.com __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] LIN IN level varies
Alan, Where do you have the LINE gain set? It should be somewhere at a mid-range setting. If it is set to the low or high regions, set it mid-range and adjust the audio level with your soundcard volume control in the computer. 73, Don W3FPR On 5/10/2018 5:58 AM, Alan Ibbetson wrote: I'm an infrequent user of data modes. I'm trying to use FT8 with the latest version of the WSJT-X software. Sound card input is via LINE IN. I'm using DATA A mode. Everything works OK on transmit except that intermittently the K3 output falls to zero even though the sound card audio output level isn't changing. The VOX stays on, so the K3 is "hearing" the audio. ALC usually but not always falls to zero from the 4 bars level. Even weirder, if I turn the MIC gain (LINE) down to zero and back up again the output and ALC come back up to normal. __ 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] LIN IN level varies
Hi Bill, That's an interesting theory but the evidence doesn't support it. If I turn off VOX then WJST never puts the K3 into transmit. I looked and F2 in WJST-X has "VOX" selected under the Radio tab. The more I mull this over the more the effect of turning the Mic pot down to zero and back up again to temporarily clear the fault the more I suspect the K3 firmware. I've downloaded the latest microcode from electraft.com. So far this evening the fault has not reappeared. Time will tell. 73, Alan G3XAQ On 10/05/2018 20:53, Bill Frantz wrote: The type of radio might matter for a fix for the problem. If wsjt-x is set up to use CAT control from the computer, it will use CAT to set the radio into transmit mode, so the fact that the radio is in transmit mode doesn't mean that VOX has been activated. If this is the case, it is possible there is a problem with the sound card/cable(s). 73 Bill AE6JV On 5/10/18 at 2:58 AM, a...@g3xaq.net (Alan Ibbetson) wrote: I'm an infrequent user of data modes. I'm trying to use FT8 with the latest version of the WSJT-X software. Sound card input is via LINE IN. I'm using DATA A mode. Everything works OK on transmit except that intermittently the K3 output falls to zero even though the sound card audio output level isn't changing. The VOX stays on, so the K3 is "hearing" the audio. ALC usually but not always falls to zero from the 4 bars level. Even weirder, if I turn the MIC gain (LINE) down to zero and back up again the output and ALC come back up to normal. Is this a hardware fault? A software fault? Or something even weirder? My FW REVS says uC 05.14 d1 02.83 d2 00.00 (no KRX3 is installed) FL 01.19 dr 00.00 73. Alan G3XAQ --- Bill Frantz| "The only thing we have to | Periwinkle (408)356-8506 | fear is fear itself." - FDR | 16345 Englewood Ave www.pwpconsult.com | Inaugural address, 3/4/1933 | Los Gatos, CA 95032 -- Alan Ibbetson a...@g3xaq.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] LIN IN level varies
The type of radio might matter for a fix for the problem. If wsjt-x is set up to use CAT control from the computer, it will use CAT to set the radio into transmit mode, so the fact that the radio is in transmit mode doesn't mean that VOX has been activated. If this is the case, it is possible there is a problem with the sound card/cable(s). 73 Bill AE6JV On 5/10/18 at 2:58 AM, a...@g3xaq.net (Alan Ibbetson) wrote: I'm an infrequent user of data modes. I'm trying to use FT8 with the latest version of the WSJT-X software. Sound card input is via LINE IN. I'm using DATA A mode. Everything works OK on transmit except that intermittently the K3 output falls to zero even though the sound card audio output level isn't changing. The VOX stays on, so the K3 is "hearing" the audio. ALC usually but not always falls to zero from the 4 bars level. Even weirder, if I turn the MIC gain (LINE) down to zero and back up again the output and ALC come back up to normal. Is this a hardware fault? A software fault? Or something even weirder? My FW REVS says uC 05.14 d1 02.83 d2 00.00 (no KRX3 is installed) FL 01.19 dr 00.00 73. Alan G3XAQ --- Bill Frantz| "The only thing we have to | Periwinkle (408)356-8506 | fear is fear itself." - FDR | 16345 Englewood Ave www.pwpconsult.com | Inaugural address, 3/4/1933 | Los Gatos, CA 95032 __ 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] KPA500 installtion with ICOM 7300
John, The amp is bypassed if the KAT500 needs do do any tuning or switching, so I suspect the amp will not fault. That is why you run the keying line first to the KAT500 and then from the KAT500 to the KPA500, so the tuner can disable the amp. 73, Don W3FPR On 5/10/2018 9:31 AM, j...@kk9a.com wrote: I concur that the RF sense works very well, at least it does with an external antenna switch and reasonably good antenna SWR. I am not sure what happens if you also use the KAT500 as an antenna switch or your untuned SWR is very bad. Does the amp fault during this first dit? __ 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] KPA500 installtion with ICOM 7300
I concur that the RF sense works very well, at least it does with an external antenna switch and reasonably good antenna SWR. I am not sure what happens if you also use the KAT500 as an antenna switch or your untuned SWR is very bad. Does the amp fault during this first dit? John KK9A Jim Brown K9YC wrote: FWIW, I've never used band data with my KPA500, only the AMP KEY cable. The KPA500 (and KAT500) are VERY good (and fast) at detecting RF and changing bands. All it takes is a dit or a tap on the mic. 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
Re: [Elecraft] AX1
WOndering myself... Bret/N4SRN -- 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] K3 - No Tx Power, No demod
My K3 was working perfectly a few hours ago and had been powered on with no config changes. I just tried it and it develops no RF power (either through audio input or using "Tune"), and does not demodulate signals. The P3 shows an active band, so things are OK to that part of the IF, and the signals move around as expected on the display when I tune. When I change bands I can see display changes that indicate that everything is right up to the P3 take-off point. I get a hiss that changes volume with the AF and RF gain controls, and I get beeps when I press buttons as normal so the audio amp is OK. It fully responds to computer control and reports the f/w versions correctly. I have tried shutting it down and removing power for 30 Seconds. Has anyone seen this problem before? Thanks - Stewart/G3YSX __ 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] LIN IN level varies
I'm an infrequent user of data modes. I'm trying to use FT8 with the latest version of the WSJT-X software. Sound card input is via LINE IN. I'm using DATA A mode. Everything works OK on transmit except that intermittently the K3 output falls to zero even though the sound card audio output level isn't changing. The VOX stays on, so the K3 is "hearing" the audio. ALC usually but not always falls to zero from the 4 bars level. Even weirder, if I turn the MIC gain (LINE) down to zero and back up again the output and ALC come back up to normal. Is this a hardware fault? A software fault? Or something even weirder? My FW REVS says uC 05.14 d1 02.83 d2 00.00 (no KRX3 is installed) FL 01.19 dr 00.00 73. Alan G3XAQ -- Alan Ibbetson a...@g3xaq.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
