Re: [Elecraft] K3 temperatures?
Sam K5OAI sed: room temp 27.7 F Unless the room is in an igloo, he probably meant 27.7C = 82F. Good temperature benchmarks to keep in mind are: (a) 20C = 68F is normal room temperature; and (b) 37C = 98.6F is normal body temperature. Naturally, the K3 temperatures will be higher than the ambient temperature, as the K3 dissipates part of the energy coming into it from the PS. The K3's PA fans are designed to run unless the PA temperature is 36C or less, so the PA temperature will tend toward 36C unless the room is cool. In a warm room, 36C is a pretty normal PA temperature reading. In a warm room there *may* be nothing wrong with an FP temperature of 41C after much idling. With a receive current drain of 1.5A, the K3 is dissipating 20W continuously. Of course, the PA fans don't directly cool the front panel. Have the Front Panel Temperature Sensor and PA Temperature Sensor calibrations been performed as detailed in the K3 Owner's Manual? 73, Paul W8TM __ 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
[Elecraft] It's here ....
A KXPA100, S/N 0029... a Field Test unit ... arrived today (Thursday). (:-))) Now, Rose can finalize her KX3 / KXPA100 carrying case design. 73! Ken Kopp - K0PP elecraftcov...@gmail.com http:tinyurl.com/7lm3m5 __ 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
Re: [Elecraft] K3 temperatures?
bingo op error :-/ (why am I not surprised?) room temp was 27.7 *C* not *F* although it had actually been 20F outside earlier that morning Also, thanks for the calibration tip for the PA FP temps I found they were both many degrees higher than actual room temp sm On 11/14/2013 10:56 AM, Paul Kirley wrote: Sam K5OAI sed: room temp 27.7 F Unless the room is in an igloo, he probably meant 27.7C = 82F. Good temperature benchmarks to keep in mind are: (a) 20C = 68F is normal room temperature; and (b) 37C = 98.6F is normal body temperature. Naturally, the K3 temperatures will be higher than the ambient temperature, as the K3 dissipates part of the energy coming into it from the PS. The K3's PA fans are designed to run unless the PA temperature is 36C or less, so the PA temperature will tend toward 36C unless the room is cool. In a warm room, 36C is a pretty normal PA temperature reading. In a warm room there *may* be nothing wrong with an FP temperature of 41C after much idling. With a receive current drain of 1.5A, the K3 is dissipating 20W continuously. Of course, the PA fans don't directly cool the front panel. Have the Front Panel Temperature Sensor and PA Temperature Sensor calibrations been performed as detailed in the K3 Owner's Manual? 73, Paul W8TM -- GB 73 K5OAI Sam Morgan __ 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
Re: [Elecraft] It's here ....
Use 7 -9 oz. saddle grade leather - hand-tooled. Looks good and is nearly indestructible, while providing good protection to the device. Bill W2BLC __ 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
Re: [Elecraft] K3 / KPA500 / KAT500 Tuning
Thanks for all the helpful suggestions - the issue has been resolved, and the K-Line is now work as it should, per the manual. Had a bad board in the KAT500 and was unable to run the KAT500 Utility program. And that meant I was not able to set it for optimizing for the KPA500. Put in the new board this afternoon and bingo - working fine! 73, Jim / W6JHB __ 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
Re: [Elecraft] K3: Receive Ant Question
I use this as well, and it works very well -- and very silently. Excellent product. 73, Dale WA8SRA I use this on the RX antenna: http://www.arraysolutions.com/Products/as_rxfep.htm ...works great. -Greg NY6C On Nov 13, 2013, at 3:16 PM, Don Wilhelm w3...@embarqmail.com wrote: Steve, The RX antenna input is protected by a Carrier Operated Relay. Other than that, there is no relay to disconnect the RX input. If your TX antenna is sufficiently separated from the RX antenna, there is no problem. How much is 'significant' is often a question, and the answer depends on your particular antenna installation. If you hear the COR relay operating, yours is not providing sufficient isolation and you should look into an external device (likely a relay will do) to disconnect the RX antenna during transmit. 73, Don W3FPR __ 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
Re: [Elecraft] It's here ....
I don't get it. If field test units are now just hitting testers, what about the so called full production units date of Nov 13.2 days from nowand the statement from Elecraft we will keep you informed George, W6GF On Thursday, November 14, 2013 5:15 PM, Ken G Kopp kengk...@gmail.com wrote: A KXPA100, S/N 0029... a Field Test unit ... arrived today (Thursday). (:-))) Now, Rose can finalize her KX3 / KXPA100 carrying case design. 73! Ken Kopp - K0PP elecraftcov...@gmail.com http:tinyurl.com/7lm3m5 __ 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 __ 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
Re: [Elecraft] It's here ....
Hi George, The KXPA100 has been in field test for about two months by approximately 10 testers, which includes a number of our staff members. Believe me, we've all been beating it up. The amps that went out most recently are actually production units, but we still refer to them as field-test because the firmware and operating manual are still being refined. The firmware will continue to be refined this weekend, which my wife isn't all that happy about. But we're down to really minor nits, based on feedback from testers. 73, Wayne N6KR George wrote: I don't get it. If field test units are now just hitting testers, what about the so called full production units date of Nov 13.2 days from nowand the statement from Elecraft we will keep you informed George, W6GF __ 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
Re: [Elecraft] It's here ....
We continue shipping to some field testers even after the production units ship. Ken is not one of the early FTs. More info tomorrow. :-) Eric elecraft.com On 11/14/2013 5:57 PM, george fritkin wrote: I don't get it. If field test units are now just hitting testers, what about the so called full production units date of Nov 13.2 days from nowand the statement from Elecraft we will keep you informed George, W6GF On Thursday, November 14, 2013 5:15 PM, Ken G Kopp kengk...@gmail.com wrote: A KXPA100, S/N 0029... a Field Test unit ... arrived today (Thursday). (:-))) Now, Rose can finalize her KX3 / KXPA100 carrying case design. 73! Ken Kopp - K0PP elecraftcov...@gmail.com http:tinyurl.com/7lm3m5 __ 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 __ 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 __ 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
Re: [Elecraft] K3 temperatures?
fyi .. after calibration room temp = 80F RX (dual) current drain 1.4-1.5A PA temp = 91.4F (no tx for last 2 hrs) FP temp = 100F (rx with dual rx for last 4 hrs) On 11/14/2013 12:24 PM, Sam Morgan wrote: bingo op error :-/ (why am I not surprised?) room temp was 27.7 *C* not *F* although it had actually been 20F outside earlier that morning Also, thanks for the calibration tip for the PA FP temps I found they were both many degrees higher than actual room temp sm On 11/14/2013 10:56 AM, Paul Kirley wrote: snip In a warm room there *may* be nothing wrong with an FP temperature of 41C after much idling. With a receive current drain of 1.5A, the K3 is dissipating 20W continuously. Of course, the PA fans don't directly cool the front panel. Have the Front Panel Temperature Sensor and PA Temperature Sensor calibrations been performed as detailed in the K3 Owner's Manual? 73, Paul W8TM -- GB 73 K5OAI Sam Morgan __ 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
[Elecraft] kat500 in bypass mode with a kpa500
will the interrupt feature work even when the tuner is in the bypass mode? For example: at 3.550 I don't need a tuner, so I put it into bypass. I then move to 3.750 but forget to reset the tuner to auto. will the KPA500 be protected with the key-line interrupt even when I am in bypass mode? Thanks, I looked in the manuals but didn't find a definitive answer. Bill, VA3OL __ 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
Re: [Elecraft] kat500 in bypass mode with a kpa500
Bill: The intent is that you can keep the tuner in auto or perhaps better manual. When you tune initially at 3550 and press ATU tune, the tune search quickly finds the ATU bypassed setting is appropriate because the SWR when L and C are bypassed is 1.2 or better. It saves bypassed as the preferred tuner solution for that frequency,. Thereafter when you transmit on 3550 in Mode Auto or Manual, the ATU loads the bypassed tuner solution. Further up the band the ATU finds that a little L and C helps, so when you first tune there, the ATU stores that solution for that frequency. Without changing mode, the ATU can load the appropriate tuner setting, which may be bypassed on 3550. In mode manual and auto the bypassed tuner solution is exactly the same relay settings as you get with mode bypass; all the inductors and capacitor relays are bypassed. There is no ATU loss advantage to being in mode bypass vs mode manual or auto and the bypassed tuner solution. To answer you other question, in mode bypass the ATU won't retune. If the SWR exceeds a configurable threshold, it can interrupt your amp. That is the VSWR threshold for amp interrupt. I think we default it high, but you can set it to 3 or 5 to 1. Some amps are touchy about having the key line changed with RF flowing. But to avoid having to remember, consider letting the ATU tune at 3550. The KAT500 Utility operate page will help you understand the tuner solution found. The bypass VSWR shown is the VSWR measured with the ATU bypassed, the SWR of your antenna without correction. The full search tune algorithm tries Bypassed as its very first try. If you would prefer a different SWR threshold for the bypassed tune solution, it can be changed in Edit Configuration, VSWR threshold, bypass SWR. I think I have mine at 1.5 or so. Some people like to see really low SWR, some prefer fewer changes as long as the amp stays happy. 73 de Dick, K6KR On Nov 14, 2013, at 20:39, bill.va...@gmail.com wrote: will the interrupt feature work even when the tuner is in the bypass mode? For example: at 3.550 I don't need a tuner, so I put it into bypass. I then move to 3.750 but forget to reset the tuner to auto. will the KPA500 be protected with the key-line interrupt even when I am in bypass mode? Thanks, I looked in the manuals but didn't find a definitive answer. Bill, VA3OL __ 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 __ 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
