[Elecraft] KPA1500 AND THE 403A 1A2R
Just wondering if anyone is using the 1A2R from 4O3A with their KPA 1500. Seems like a great solution for my Flex6600M and KPA1500 combo. 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* __ 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 24 hour clock and calendar
> On Jun 27, 2019, at 2:10 PM, Doug Turnbull wrote: > > The K4 will display time and date; I have seen this on one image. Is there > any chance that in the new design the 24 hour clock and date will hold their > accuracy over prolonged periods? Yes. In addition they'll automatically update periodically if the radio is connected to a network (Ethernet). Wayne N6KR __ 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] New Bands
The K4 should work at 40-41 MHz without modification, though I wouldn't guarantee specs without performance testing. 73, Wayne N6KR > On Jun 27, 2019, at 2:52 PM, Ed K1EP wrote: > > Maybe for RX. For TX, you have to consider spurs, harmonics, filters and > other technicalities. So, it is not trivial. > > On Thu, Jun 27, 2019, 17:36 Dennis Moore wrote: > >> SDR, should just be a modification to the firmware. >> >> Dennis NJ6G >> >> On 6/27/2019 13:44, David Gilbert wrote: >>> A friend just advised me of a new FCC Petition for Rule Making that >>> requests the creation of a new amateur band for 8m somewhere between >>> 40 and 41 MHz. >>> >>> https://ecfsapi.fcc.gov/file/105260090923685/8%20meter%20PRM.pdf >>> >>> I doubt it gets any traction, but it makes me curious if any mods >>> (software or hardware) would be practical to allow the K3 or K3s or K4 >>> to cover that range. I suspect the upper low pass band filter would >>> preclude that possibility. >>> >>> 73, >>> Dave AB7E __ 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] New Bands
Maybe for RX. For TX, you have to consider spurs, harmonics, filters and other technicalities. So, it is not trivial. On Thu, Jun 27, 2019, 17:36 Dennis Moore wrote: > SDR, should just be a modification to the firmware. > > Dennis NJ6G > > On 6/27/2019 13:44, David Gilbert wrote: > > A friend just advised me of a new FCC Petition for Rule Making that > > requests the creation of a new amateur band for 8m somewhere between > > 40 and 41 MHz. > > > > https://ecfsapi.fcc.gov/file/105260090923685/8%20meter%20PRM.pdf > > > > I doubt it gets any traction, but it makes me curious if any mods > > (software or hardware) would be practical to allow the K3 or K3s or K4 > > to cover that range. I suspect the upper low pass band filter would > > preclude that possibility. > > > > 73, > > Dave AB7E > __ > 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 k1ep.l...@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] New Bands
SDR, should just be a modification to the firmware. Dennis NJ6G On 6/27/2019 13:44, David Gilbert wrote: A friend just advised me of a new FCC Petition for Rule Making that requests the creation of a new amateur band for 8m somewhere between 40 and 41 MHz. https://ecfsapi.fcc.gov/file/105260090923685/8%20meter%20PRM.pdf I doubt it gets any traction, but it makes me curious if any mods (software or hardware) would be practical to allow the K3 or K3s or K4 to cover that range. I suspect the upper low pass band filter would preclude that possibility. 73, Dave AB7E __ 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 24 hour clock and calendar
The K4 will display time and date; I have seen this on one image. Is there any chance that in the new design the 24 hour clock and date will hold their accuracy over prolonged periods? This was not the case for the K3 and would be an improvement. 73 Doug EI2CN -Original Message- From: elecraft-boun...@mailman.qth.net [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of David Gilbert Sent: 27 June 2019 20:44 To: Elecraft Subject: [Elecraft] New Bands A friend just advised me of a new FCC Petition for Rule Making that requests the creation of a new amateur band for 8m somewhere between 40 and 41 MHz. https://ecfsapi.fcc.gov/file/105260090923685/8%20meter%20PRM.pdf I doubt it gets any traction, but it makes me curious if any mods (software or hardware) would be practical to allow the K3 or K3s or K4 to cover that range. I suspect the upper low pass band filter would preclude that possibility. 73, Dave AB7E __ 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 turnb...@net1.ie __ 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] New Bands
A friend just advised me of a new FCC Petition for Rule Making that requests the creation of a new amateur band for 8m somewhere between 40 and 41 MHz. https://ecfsapi.fcc.gov/file/105260090923685/8%20meter%20PRM.pdf I doubt it gets any traction, but it makes me curious if any mods (software or hardware) would be practical to allow the K3 or K3s or K4 to cover that range. I suspect the upper low pass band filter would preclude that possibility. 73, Dave AB7E __ 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] All knobs at max ...
Indian Chief said; "White man stupid. Thinks he can cut 12" off of one end of his blanket, sew it on the other end, and have a longer blanket". 73 Bob, K4TAX On 6/27/2019 3:26 PM, Logan R Zintsmaster wrote: Amateur astronomers refer to Advanced Time as Darkness Wasting Time. Logan, KE7AZ Sent from my iPhone On Jun 27, 2019, at 11:12 AM, Phil Kane wrote: On 6/26/2019 7:58 PM, Jack Brindle via Elecraft wrote: As was explained very carefully to us last fall before the election with that proposal, it would take a change in an international agreement for CA to go on full-time DST, so don’t hold your breath. Although the time zone geographic definitions are set by international treaty, a shift to year-round "Advanced Time" without altering the boundaries of the Time Zone only takes a resolution of Congress to permit the deviation from the Uniform Time Act of 1946. Had the states decided to forego the time shift and remain on "Non-Advanced Time" year-round - such as Arizona and Hawaii do - it does not require anything more than a state ordinance. "My time is your time." (Leroy Anderson's "Syncopated Clock" playing in the background...) 73 de K2ASP - Phil Kane Elecraft K2/100 s/n 5402 From a Clearing in the Silicon Forest Beaverton (Washington County) Oregon __ 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 lra...@garlic.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] All knobs at max ...
Amateur astronomers refer to Advanced Time as Darkness Wasting Time. Logan, KE7AZ Sent from my iPhone > On Jun 27, 2019, at 11:12 AM, Phil Kane wrote: > >> On 6/26/2019 7:58 PM, Jack Brindle via Elecraft wrote: >> >> As was explained very carefully to us last fall before the election >> with that proposal, it would take a change in an international >> agreement for CA to go on full-time DST, so don’t hold your breath. > > Although the time zone geographic definitions are set by international > treaty, a shift to year-round "Advanced Time" without altering the > boundaries of the Time Zone only takes a resolution of Congress to > permit the deviation from the Uniform Time Act of 1946. Had the states > decided to forego the time shift and remain on "Non-Advanced Time" > year-round - such as Arizona and Hawaii do - it does not require > anything more than a state ordinance. > > "My time is your time." > (Leroy Anderson's "Syncopated Clock" playing in the background...) > > 73 de K2ASP - Phil Kane > Elecraft K2/100 s/n 5402 > > From a Clearing in the Silicon Forest > Beaverton (Washington County) Oregon > __ > 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 lra...@garlic.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] Telepost LP-Pan & Xonar U5 Sound card for K3 SOLD
__ 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 Anomaly?
Push on each one of the plugs in both the PX3 and the radio. This can be caused by a poor connection. -- 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] PX3 Anomaly?
What is your CW offset set to? Perhaps that is a cursor showing the CW offset? 73, Scott N9AA On 6/27/19 2:45 PM, Ian Kirkpatrick via Elecraft wrote: Hi, I have recently purchased a new PX3 for use with my KX3.In CW mode in the waterfall display there appears a distinct black line 600hz to the right of the carrier, the black line is 50hz wide.Is this normal or is there a fault with the PX3 or is there something I have not done in setting upprocedures?I will be grateful for any guidance.Regards,IanG4WTF __ 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 scott.man...@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] PX3 Anomaly?
Hi, I have recently purchased a new PX3 for use with my KX3.In CW mode in the waterfall display there appears a distinct black line 600hz to the right of the carrier, the black line is 50hz wide.Is this normal or is there a fault with the PX3 or is there something I have not done in setting upprocedures?I will be grateful for any guidance.Regards,IanG4WTF __ 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] All knobs at max ...
On 6/26/2019 7:58 PM, Jack Brindle via Elecraft wrote: > As was explained very carefully to us last fall before the election > with that proposal, it would take a change in an international > agreement for CA to go on full-time DST, so don’t hold your breath. Although the time zone geographic definitions are set by international treaty, a shift to year-round "Advanced Time" without altering the boundaries of the Time Zone only takes a resolution of Congress to permit the deviation from the Uniform Time Act of 1946. Had the states decided to forego the time shift and remain on "Non-Advanced Time" year-round - such as Arizona and Hawaii do - it does not require anything more than a state ordinance. "My time is your time." (Leroy Anderson's "Syncopated Clock" playing in the background...) 73 de K2ASP - Phil Kane Elecraft K2/100 s/n 5402 From a Clearing in the Silicon Forest Beaverton (Washington County) Oregon __ 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] Off-Topic - Vertical Viz Key for Sale
I have for sale a Viz Key Vertical bug with an extra ½ weight for sale. It is a beautiful brass instrument that is well constructed. The key has never been used on the air and is as new. I am not advertising it as a new key because I have practiced with it for about 30 minutes total time. The reason for selling is that I am not and will never become a bug user. I paid (shipping and handling included) $269.00 less the cost of the ½ weight. I would like $210.00 shipped to your door. Marv KG7V __ 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] Telepost LP-Pan & Xonar U5 Sound card for K3
Complete setup, LP-PAN, Xonar U5 sound card, interconnect cable, and USB cable. I recommend NAP3 software. Works as it should and was in service here until a few days ago. Non-smoking shack. More pictures available on request $150.00 shipped conus. __ 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 RTC frequency
Still unhappy with the K3 RTC performance. I am interested the frequency of Y1 should be measured on TP3 of K3s front panel. 73 István HA4ZD __ 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] Dual Receiver Tricks
I agree that Ed misused the term "polarity" at the end of his post, but I'm pretty sure it was a slip of the pen (keyboard) because he has been doing this stuff for a long time. I'm pretty certain he meant "polarization". I know he has done some work (and written about it) using cross polarized antennas (orthogonal and spaced a bit apart fore and aft relative to the arriving signal) to measure both the degree and direction of ellipsoid arriving signals, and I remember that he took great pains to account for differences in the feedline delays. When he's simply looking for the tilt angle and not the handedness of the ellipse, as he states below the two orthogonal antennas are in the same plane ... but if the arriving signal is circularly polarized the phase will indeed appear to be different between the two antennas. If the arriving signal isn't particularly circular but simply has a polarization tilt, the phase difference would be small and the differences in amplitude would indicate the angle of tilt. Be sure to correct me if I'm wrong here, Ed. I'm doing my best to visualize this stuff. I think Ed is telling me in in his post below the name of some software that allows him to compare the two signals, and presumably that is the case for both amplitude which he is using to get the tilt angle, and for phase, which I want to use to get arrival angle using two horizontal antennas one above the other or azimuth using two vertical antennas spaced laterally. It will be interesting to see if that does the job. As I once posted in the past, I have previously fed the audio from both K3 receivers while tuned to the same frequency in diversity mode ... with the signals coming from two different antennas, one above the other by a known distance ... into the sound card of my computer running a simple dual trace audio oscilloscope application. By triggering on one of the signals while looking at the delay in the other signal I could get an approximate indication of the change in arrival angle over time, so I know the concept is valid. To get a clean reading I used some 40m AM broadcast carriers during periods when there was no modulation, such as between programs. The angle changed 10 to 15 degrees in fractions of a second, and if had been able to accurately know the delay difference between the two feedlines I would have been able to calculate the absolute arrival angles instead of just the changes. To be honest, the software necessary to do all of this should be fairly straightforward. I'm just not knowledgeable enough to code it myself. From my perspective it should also be possible to do it inside the K3, K3s, or K4, but if that doesn't happen (and it appears that it won't) I'll try to figure out how to do it with a separate application. As you say, all of this can be accomplished at RF as is done with the DX Engineering boxes ... but it can be done more simply at audio via software (at least for receive) since phase is preserved upon down converting. 73, Dave AB7E On 6/26/2019 10:11 PM, Jim Brown wrote: Some words are being misunderstood and mis-used. Polarization describes the geometric orientation of the antenna and the resulting EM field. Polarity is the positive or negative going sense of voltage or current in a circuit (what for decades we mistakenly called "in phase/out of phase). Polarity has two values, positive or reverse. We change the polarity by turning the wires over in a circuit. Phase is a continuously valued function and is measured in degrees or radians. The phase relationship between two signals has meaning only for sine waves of the same frequency. The phase relationship between antennas is a function of the distance between them, the frequency of each signal they transmit or receive. Further, this phase relationship is different for every angle from which a signal arrives or to which it is transmitted. The phase relationship also includes the electrical lengths of the transmission lines involved, and, of course, the difference in phase increases in proportion to the frequency of the signal. There's a tutorial discussion of these concepts in http://k9yc.com/VE3DO.pdf in the context of how the DX Engineering NCC-1 and NCC-2 work to steer the directivity of two spaced antennas. The same laws of physics are at play in this discussion. 73, Jim K9YC On 6/26/2019 9:20 PM, Edward R Cole wrote: I feed signals from two antenna that are orthogonally polarized (one is horz and other is Vert polarity, both pointed in the same direction and essentially in-phase). I use the eme sw MAP-65 to process the output of both Rx and it resolves the angle of polarization and maxes signal strength in alignment with the actual angle of polarity. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm
