[Elecraft] K3S/100 - TX current on 20m
Something that I have recently noticed on my K3S/100 : DC current draw on 20 meters is significantly higher (+4 amps) than the other HF bands at the same power setting and input conditions into a dummy load (into antenna, same thing). This is both before and after performing a TX Gain Cal. Test conditions: mode Data A, input single test tone from FLDIGI software (4-5 bars ALC), tone level & frequency not changed during the tests, ATU bypassed, ANT1 selected. Power supply voltage in RX, 14.3 V, RX current 1.2 - 1.3 amps. This ONLY occurs on 20m, the other HF bands seem to be OK. (6m is higher than the HF bands by about 2 amps, not sure if that is normal or not). For example, with 80W out: 80m, 60m, 40m, 30m, 17m, 15m, 12m, 10m are all close to 16 amps, but 20m is 20 amps. (6m is 18 amps). I searched the archive and found a few references to "bad low pass filter". I have already emailed details to supp...@elecraft.com but wondered if there is something I can check in the meantime until they get back to me. 73 David AJ4TF -- 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] KAT500 config restore
If you attempt to use KAT Utility version 1.19.5.30 to restore a saved configuration it may hang up when progress bar shows complete (full green bar). Config files can be restored with Utility version 1.16.7.25 which is the previous released version. 1.19.5.30 fixed a problem with writing SWR limits but seems to have broken config restore. The utility author has been advised. 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
[Elecraft] Correction to the ssb net log from 11-10
NW4JF should be WW4JF. Eric WB9JNZ net control. Sent from AT&T Yahoo Mail on Android __ 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/100 - TX current on 20m
Measurements on my K3S into a 50 ohm load, at 100 watts PWR setting did show the current does vary from band to band. I found that 20M and 17M were the highest at 20.2 amps as indicated by the current display in the K3S. The lowest current was 16.0 amps on 40M. I would consider this to be normal and of no concern. 73 Bob, K4TAX On 11/11/2019 4:29 AM, aj4tf wrote: Something that I have recently noticed on my K3S/100 : DC current draw on 20 meters is significantly higher (+4 amps) than the other HF bands at the same power setting and input conditions into a dummy load (into antenna, same thing). This is both before and after performing a TX Gain Cal. Test conditions: mode Data A, input single test tone from FLDIGI software (4-5 bars ALC), tone level & frequency not changed during the tests, ATU bypassed, ANT1 selected. Power supply voltage in RX, 14.3 V, RX current 1.2 - 1.3 amps. This ONLY occurs on 20m, the other HF bands seem to be OK. (6m is higher than the HF bands by about 2 amps, not sure if that is normal or not). For example, with 80W out: 80m, 60m, 40m, 30m, 17m, 15m, 12m, 10m are all close to 16 amps, but 20m is 20 amps. (6m is 18 amps). I searched the archive and found a few references to "bad low pass filter". I have already emailed details to supp...@elecraft.com but wondered if there is something I can check in the meantime until they get back to me. 73 David AJ4TF -- 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 rmcg...@blomand.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] KPA1500 Thermal problems
I participated in the WAE RTTY contest this past weekend and was having problems with thermal tripping. I have resonant antennas for 80, 40 and 20m and had SWR between 1:1 and 1.2:1, power nominally set between 1400-1500w. I found that I couldn't repeatedly CQ without temperature creeping up so I paused to around 50% duty cycle to stop that. However when sending QTC which amount to about 200 characters the temperature would rapidly increase and eventually thermal trip. I took several actions to try to compensate: I opened the shack windows and bundled up. Shack then stayed at 60f or below. I immediately manually cranked the fan speed to max (5) when started to send QTCs. I rode the drive power downward as the power increased to stay below the trip point of 105c. Upon taking all these actions I was able to eventually send the QTC packets but it was unnerving and unexpected. This is a low serial number KPA1500 but with latest production firmware. What have others seen? 73 jim ab3cv __ 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] KPA1500 Thermal problems
"I rode the drive power downward as the power increased to stay below the trip point of 105c." Was that intended to be "as the temperature increased"? If so, do you have any data that shows PA dissipation is lower at reduced power levels for the KPA1500? For the KPA500 PA dissipation increases as power is reduced and peaks at about half rated output. 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] KPA1500 Thermal problems
" I rode the drive power downward as the power increased to stay below the trip point of 105c." Should have been "as the temperature increased" jim ab3cv On Mon, Nov 11, 2019 at 9:03 AM Jim Miller wrote: > I participated in the WAE RTTY contest this past weekend and was having > problems with thermal tripping. > > I have resonant antennas for 80, 40 and 20m and had SWR between 1:1 and > 1.2:1, power nominally set between 1400-1500w. > > I found that I couldn't repeatedly CQ without temperature creeping up so I > paused to around 50% duty cycle to stop that. > > However when sending QTC which amount to about 200 characters the > temperature would rapidly increase and eventually thermal trip. > > I took several actions to try to compensate: > > I opened the shack windows and bundled up. Shack then stayed at 60f or > below. > I immediately manually cranked the fan speed to max (5) when started to > send QTCs. > I rode the drive power downward as the power increased to stay below the > trip point of 105c. > > Upon taking all these actions I was able to eventually send the QTC > packets but it was unnerving and unexpected. > > This is a low serial number KPA1500 but with latest production firmware. > > What have others seen? > > 73 > > jim ab3cv > __ 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 Thermal problems
What output power did that reduce too ultimately, is 105c the design temp limit? On Mon, Nov 11, 2019 at 8:30 AM Jim Miller wrote: > " I rode the drive power downward as the power increased to stay below the > trip point of 105c." > > Should have been "as the temperature increased" > > jim ab3cv > > On Mon, Nov 11, 2019 at 9:03 AM Jim Miller wrote: > > > I participated in the WAE RTTY contest this past weekend and was having > > problems with thermal tripping. > > > > I have resonant antennas for 80, 40 and 20m and had SWR between 1:1 and > > 1.2:1, power nominally set between 1400-1500w. > > > > I found that I couldn't repeatedly CQ without temperature creeping up so > I > > paused to around 50% duty cycle to stop that. > > > > However when sending QTC which amount to about 200 characters the > > temperature would rapidly increase and eventually thermal trip. > > > > I took several actions to try to compensate: > > > > I opened the shack windows and bundled up. Shack then stayed at 60f or > > below. > > I immediately manually cranked the fan speed to max (5) when started to > > send QTCs. > > I rode the drive power downward as the power increased to stay below the > > trip point of 105c. > > > > Upon taking all these actions I was able to eventually send the QTC > > packets but it was unnerving and unexpected. > > > > This is a low serial number KPA1500 but with latest production firmware. > > > > What have others seen? > > > > 73 > > > > jim ab3cv > > > __ > 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 fhmas...@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] KPA1500 Thermal problems
It trips off at 105C. It starts warning with a yellow indication at 100c Power reduced to 1kw helped slow the rate of temperature increase but still required a cold room and max fan speed at the beginning to contain it. It never stopped climbing. Jim ab3cv On Mon, Nov 11, 2019 at 9:32 AM Fred Massey wrote: > What output power did that reduce too ultimately, is 105c the design temp > limit? > > On Mon, Nov 11, 2019 at 8:30 AM Jim Miller wrote: > >> " I rode the drive power downward as the power increased to stay below the >> trip point of 105c." >> >> Should have been "as the temperature increased" >> >> jim ab3cv >> >> On Mon, Nov 11, 2019 at 9:03 AM Jim Miller wrote: >> >> > I participated in the WAE RTTY contest this past weekend and was having >> > problems with thermal tripping. >> > >> > I have resonant antennas for 80, 40 and 20m and had SWR between 1:1 and >> > 1.2:1, power nominally set between 1400-1500w. >> > >> > I found that I couldn't repeatedly CQ without temperature creeping up >> so I >> > paused to around 50% duty cycle to stop that. >> > >> > However when sending QTC which amount to about 200 characters the >> > temperature would rapidly increase and eventually thermal trip. >> > >> > I took several actions to try to compensate: >> > >> > I opened the shack windows and bundled up. Shack then stayed at 60f or >> > below. >> > I immediately manually cranked the fan speed to max (5) when started to >> > send QTCs. >> > I rode the drive power downward as the power increased to stay below the >> > trip point of 105c. >> > >> > Upon taking all these actions I was able to eventually send the QTC >> > packets but it was unnerving and unexpected. >> > >> > This is a low serial number KPA1500 but with latest production firmware. >> > >> > What have others seen? >> > >> > 73 >> > >> > jim ab3cv >> > >> __ >> 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 fhmas...@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: K3/100 dual RX
FS: K3/100 s/n 64xx. kit built by myself. never out of non-smoking, no pet shack. no problems at all. ever. configuration: KPA3, KAT100, DVR3, KRX3 (sub-RX), KSYN3 (original, not upgrade A version), KXV3B (upgrade) and KIO3B (upgrade). main filters: 2.8/400; sub filters: 2.7/500. photos on request, will meet on air on request. asking $1750 shipped stateside. Jim/N1NK __ 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 Thermal problems
Thank you for the information. RTTY contests are the acid test of an amp On Mon, Nov 11, 2019 at 8:35 AM Jim Miller wrote: > It trips off at 105C. > > It starts warning with a yellow indication at 100c > > Power reduced to 1kw helped slow the rate of temperature increase but > still required a cold room and max fan speed at the beginning to contain > it. It never stopped climbing. > > Jim ab3cv > > On Mon, Nov 11, 2019 at 9:32 AM Fred Massey wrote: > >> What output power did that reduce too ultimately, is 105c the design >> temp limit? >> >> On Mon, Nov 11, 2019 at 8:30 AM Jim Miller wrote: >> >>> " I rode the drive power downward as the power increased to stay below >>> the >>> trip point of 105c." >>> >>> Should have been "as the temperature increased" >>> >>> jim ab3cv >>> >>> On Mon, Nov 11, 2019 at 9:03 AM Jim Miller wrote: >>> >>> > I participated in the WAE RTTY contest this past weekend and was having >>> > problems with thermal tripping. >>> > >>> > I have resonant antennas for 80, 40 and 20m and had SWR between 1:1 and >>> > 1.2:1, power nominally set between 1400-1500w. >>> > >>> > I found that I couldn't repeatedly CQ without temperature creeping up >>> so I >>> > paused to around 50% duty cycle to stop that. >>> > >>> > However when sending QTC which amount to about 200 characters the >>> > temperature would rapidly increase and eventually thermal trip. >>> > >>> > I took several actions to try to compensate: >>> > >>> > I opened the shack windows and bundled up. Shack then stayed at 60f or >>> > below. >>> > I immediately manually cranked the fan speed to max (5) when started to >>> > send QTCs. >>> > I rode the drive power downward as the power increased to stay below >>> the >>> > trip point of 105c. >>> > >>> > Upon taking all these actions I was able to eventually send the QTC >>> > packets but it was unnerving and unexpected. >>> > >>> > This is a low serial number KPA1500 but with latest production >>> firmware. >>> > >>> > What have others seen? >>> > >>> > 73 >>> > >>> > jim ab3cv >>> > >>> __ >>> 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 fhmas...@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/100 - TX current on 20m
As indicated on my K3S current display, at a PWR setting of 100 watts, to a 50 ohm dummy load: 160M = 18.0A 80M = 17.6A 40M =16.0A 30M = 16.4A 20M = 20.2A 17M = 20.2A 15M = 17.0A 12M = 17.7A 10M = 17.0A 6M = 18.8A I'd consider these values to be typical and normal. Actual power output as indicated on my Bird 43 is a few watts above 100 on all bands. This is after a fresh transmit gain calibration. 73 Bob, K4TAX On 11/11/2019 4:29 AM, aj4tf wrote: Something that I have recently noticed on my K3S/100 : DC current draw on 20 meters is significantly higher (+4 amps) than the other HF bands at the same power setting and input conditions into a dummy load (into antenna, same thing). This is both before and after performing a TX Gain Cal. Test conditions: mode Data A, input single test tone from FLDIGI software (4-5 bars ALC), tone level & frequency not changed during the tests, ATU bypassed, ANT1 selected. Power supply voltage in RX, 14.3 V, RX current 1.2 - 1.3 amps. This ONLY occurs on 20m, the other HF bands seem to be OK. (6m is higher than the HF bands by about 2 amps, not sure if that is normal or not). For example, with 80W out: 80m, 60m, 40m, 30m, 17m, 15m, 12m, 10m are all close to 16 amps, but 20m is 20 amps. (6m is 18 amps). I searched the archive and found a few references to "bad low pass filter". I have already emailed details to supp...@elecraft.com but wondered if there is something I can check in the meantime until they get back to me. 73 David AJ4TF -- 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 rmcg...@blomand.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] K-4 features
Hi Scott, We could trigger the main RX noise blanker from the sub RX, though we haven't tried this yet. I believe this would achieve what you're describing. For example, the sub RX could be tuned to 13.975 while the main is tuned to the 20 meter CW band. 73, Wayne N6KR > On Nov 10, 2019, at 7:12 PM, K9MA wrote: > > On 11/10/2019 19:06, Wayne Burdick wrote: >> The K4, being an SDR, provides access to a different class of wide-band NR >> and NB algorithms. > > Some hardware noise blankers are very effective at reducing line noise and > other impulse-type noise, provided there are no strong signals within the 15 > kHz + NB bandwidth. (My old FT-1000D, for example.) With appropriate > firmware, could the K4 NB achieve that kind of performance? Could the strong > signal limitation be overcome by having the SDR detect noise in a slightly > different frequency range, like just outside a ham band during a contest? __ 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] KAT500 config restore
I've been having a problem with my installation that requires me to run the KAT500 utility 'As Administrator'. When I do this, it works. When I don't, it fails - hangs, actually. Perhaps this is related? - 73 and good DX de Mike, K6MKF, NCDXC Secretary > -Original Message- > From: elecraft-boun...@mailman.qth.net > On Behalf Of Andy Durbin > Sent: Monday, November 11, 2019 04:55 > To: elecraft@mailman.qth.net > Subject: [Elecraft] KAT500 config restore > > If you attempt to use KAT Utility version 1.19.5.30 to restore a saved > configuration it may hang up when progress bar shows complete (full green bar). > Config files can be restored with Utility version 1.16.7.25 which is the previous > released version. 1.19.5.30 fixed a problem with writing SWR limits but seems to > have broken config restore. > > The utility author has been advised. > > 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 mike.flow...@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] KPA1500 Thermal problems
I operated the contest with over 1200 contacts. I never saw temps over 80c. I too have a low serial number but have installed all the firmware updates. Only on 40m did I hear the fan speed get to a very high speed. I was running about 1200w at all times. Richard *W7ZR* ex:5C5Z, CN2ZR, K2JSP, W6SBZ, W7KXR, K9ZIJ, W9KNF, W0KDF, W0MQU, J68ZR, KC6ZR, PJ4/W7ZR, KH2,W7ZR, KH6/W7ZR, V31ZR, VK4AAZ, XE2DV *Be joyful in hope, patient in affliction, faithful in prayer* On Mon, Nov 11, 2019 at 7:44 AM Fred Massey wrote: > Thank you for the information. RTTY contests are the acid test of an > amp > > On Mon, Nov 11, 2019 at 8:35 AM Jim Miller wrote: > > > It trips off at 105C. > > > > It starts warning with a yellow indication at 100c > > > > Power reduced to 1kw helped slow the rate of temperature increase but > > still required a cold room and max fan speed at the beginning to contain > > it. It never stopped climbing. > > > > Jim ab3cv > > > > On Mon, Nov 11, 2019 at 9:32 AM Fred Massey wrote: > > > >> What output power did that reduce too ultimately, is 105c the design > >> temp limit? > >> > >> On Mon, Nov 11, 2019 at 8:30 AM Jim Miller wrote: > >> > >>> " I rode the drive power downward as the power increased to stay below > >>> the > >>> trip point of 105c." > >>> > >>> Should have been "as the temperature increased" > >>> > >>> jim ab3cv > >>> > >>> On Mon, Nov 11, 2019 at 9:03 AM Jim Miller wrote: > >>> > >>> > I participated in the WAE RTTY contest this past weekend and was > having > >>> > problems with thermal tripping. > >>> > > >>> > I have resonant antennas for 80, 40 and 20m and had SWR between 1:1 > and > >>> > 1.2:1, power nominally set between 1400-1500w. > >>> > > >>> > I found that I couldn't repeatedly CQ without temperature creeping up > >>> so I > >>> > paused to around 50% duty cycle to stop that. > >>> > > >>> > However when sending QTC which amount to about 200 characters the > >>> > temperature would rapidly increase and eventually thermal trip. > >>> > > >>> > I took several actions to try to compensate: > >>> > > >>> > I opened the shack windows and bundled up. Shack then stayed at 60f > or > >>> > below. > >>> > I immediately manually cranked the fan speed to max (5) when started > to > >>> > send QTCs. > >>> > I rode the drive power downward as the power increased to stay below > >>> the > >>> > trip point of 105c. > >>> > > >>> > Upon taking all these actions I was able to eventually send the QTC > >>> > packets but it was unnerving and unexpected. > >>> > > >>> > This is a low serial number KPA1500 but with latest production > >>> firmware. > >>> > > >>> > What have others seen? > >>> > > >>> > 73 > >>> > > >>> > jim ab3cv > >>> > > >>> __ > >>> 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 fhmas...@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 dick.w...@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] KPA1500 Display Color
Very nice set up, Dave. But what really caught my eye is that you have 2 kitties with exactly the same colorings as ours. Must be a ham thing, only in our case the tiger kitty is 'Da Boss.' 73 Lyn, WØLEN -Original Message- From: elecraft-boun...@mailman.qth.net [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Dave Sent: Sunday, November 10, 2019 5:35 PM Cc: Elecraft Refl Subject: Re: [Elecraft] KPA1500 Display Color I use a software called Node Red running on a Raspberry Pi talking to the KPA1500 on the network. This allows me to control and monitor the amp from a web browser. Customizable colors and layout. This will also come in handy for those who run their radios remote. I find I use it more than looking at the amp or using the remote app. I have a picture of the Node Red layout on my QRZ page. https://www.qrz.com/db/WO2X Dave wo2x Sent from my iPad > On Nov 10, 2019, at 6:18 PM, Chuck Stover via Elecraft > wrote: > > Buy a K4, problem solved. > Chuck K4QS > >>On Sunday, November 10, 2019, 5:16:51 PM EST, Grant Youngman >> wrote: >> >> >> Is there a way to change the display color to match the K3? Or, am I stuck >> with light blue? > > Stuck … > > __ > 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 k4...@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 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 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
Re: [Elecraft] K-4 features
Hi Wayne, That's the sort of thing I was thinking of. I think Collins did something like that back in the 50's. Even if it meant dedicating the sub RX to noise detection, it would be worthwhile in high noise environments. I've thought of trying to modify the K3 to do something like this, but I've never found the K3 NB to be all that effective, even when the band was empty. The above would work in the HDR mode, of course. I was also wondering if there might be a way to do this with the SDR, without tying up the sub RX. 73, Scott K9MA On 11/11/2019 10:17, Wayne Burdick wrote: Hi Scott, We could trigger the main RX noise blanker from the sub RX, though we haven't tried this yet. I believe this would achieve what you're describing. For example, the sub RX could be tuned to 13.975 while the main is tuned to the 20 meter CW band. 73, Wayne N6KR On Nov 10, 2019, at 7:12 PM, K9MA wrote: On 11/10/2019 19:06, Wayne Burdick wrote: The K4, being an SDR, provides access to a different class of wide-band NR and NB algorithms. Some hardware noise blankers are very effective at reducing line noise and other impulse-type noise, provided there are no strong signals within the 15 kHz + NB bandwidth. (My old FT-1000D, for example.) With appropriate firmware, could the K4 NB achieve that kind of performance? Could the strong signal limitation be overcome by having the SDR detect noise in a slightly different frequency range, like just outside a ham band during a contest? -- Scott K9MA k...@sdellington.us __ 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] KAT500 config restore
The KAT500 utility was updated a few months ago to specifically correct this problem (I was the reporter and the guinea pig). The current version is 1.19.8.5 73 Lyn, WØLEN -Original Message- From: elecraft-boun...@mailman.qth.net [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Andy Durbin Sent: Monday, November 11, 2019 6:55 AM To: elecraft@mailman.qth.net Subject: [Elecraft] KAT500 config restore If you attempt to use KAT Utility version 1.19.5.30 to restore a saved configuration it may hang up when progress bar shows complete (full green bar). Config files can be restored with Utility version 1.16.7.25 which is the previous released version. 1.19.5.30 fixed a problem with writing SWR limits but seems to have broken config restore. The utility author has been advised. 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 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
Re: [Elecraft] KAT500 config restore
This config save problem is generally caused by a permissions issue to the configuration file folder. You need a folder that a non-admin can create files and write into. The default folder is c:\Users\yourname\Appdata\Roaming\Elecraft\KAT500 configuration. You should be able to create a file in that folder with normal user permissions, without becoming an admin. 73 de Dick, K6KR > On Nov 11, 2019, at 08:31, Mike Flowers wrote: > > I've been having a problem with my installation that requires me to run the > KAT500 utility 'As Administrator'. > > When I do this, it works. When I don't, it fails - hangs, actually. > > Perhaps this is related? > > - 73 and good DX de Mike, K6MKF, NCDXC Secretary > >> -Original Message- >> From: elecraft-boun...@mailman.qth.net >> On Behalf Of Andy Durbin >> Sent: Monday, November 11, 2019 04:55 >> To: elecraft@mailman.qth.net >> Subject: [Elecraft] KAT500 config restore >> >> If you attempt to use KAT Utility version 1.19.5.30 to restore a saved >> configuration it may hang up when progress bar shows complete (full green > bar). >> Config files can be restored with Utility version 1.16.7.25 which is the > previous >> released version. 1.19.5.30 fixed a problem with writing SWR limits but > seems to >> have broken config restore. >> >> The utility author has been advised. >> >> 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 mike.flow...@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 d...@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] KAT500 config restore
"The KAT500 utility was updated a few months ago to specifically correct this problem" Thanks. I updated and the problem is fixed. 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
[Elecraft] FS, two KX3 packages
I have two KX3s, both with PX3 panadapters, and one with a KXPA-100. Both are from a non-smoking environment with no children or pets. System no. 1: KX3, factory assembled Automatic antenna tuner Dual passband filter MH3 mic The usual cable package Owners manual It is a late model unit with the heavier OEM heat sink. NOTE; This package was used as a base station. As a result, I do not have the internal clock/charger or batteries PX3 panadapter, factory assembled Cable package Owners manual KXPA-100 amplifier KXAT100 internal ATU option, factory installed Cable package Owners manual Asking $2,400 System no. 2: KX3, factory assembled Automatic antenna tuner Dual passband filter MH3 mic KXPD3 keyer paddle Clock/charger Owners manual Cable package Eneloop NiMH batteries Windcamp HD heat sink, plexiglass cover, end plates, and canvas bag PX3 panadapter, factory assembled Cable package Owners manual Windcamp end plates, plexiglass cover, and canvas bag Asking $1,600 Why am I selling? I have chronic, often severe pain which has taken the joy out of most everything in life. I have not been on the air in the last two years and this gear needs a new home. I fired up package number two last night to check into the 40 meter CW net but QSB and a high noise level made for no joy in Mudville. Both systems are in great condition and I hate to let them go but, well, it is time. Doug, K7CUU Bremerton, WA __ 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 Thermal problems
Unit is now in transit to Elecraft for repairs. Jim ab3cv -- 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] KPA1500 Thermal problems
Unit is now in transit to Elecraft for repair. Jim ab3cv > On Nov 11, 2019, at 9:03 AM, Jim Miller wrote: > I participated in the WAE RTTY contest this past weekend and was having problems with thermal tripping. I have resonant antennas for 80, 40 and 20m and had SWR between 1:1 and 1.2:1, power nominally set between 1400-1500w. I found that I couldn't repeatedly CQ without temperature creeping up so I paused to around 50% duty cycle to stop that. However when sending QTC which amount to about 200 characters the temperature would rapidly increase and eventually thermal trip. I took several actions to try to compensate: I opened the shack windows and bundled up. Shack then stayed at 60f or below. I immediately manually cranked the fan speed to max (5) when started to send QTCs. I rode the drive power downward as the power increased to stay below the trip point of 105c. Upon taking all these actions I was able to eventually send the QTC packets but it was unnerving and unexpected. This is a low serial number KPA1500 but with latest production firmware. What have others seen? 73 jim ab3cv __ 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
