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1. Re: [Amps] K3 spike problem (score: 1): Author: Robert Mccormack <zl1aih@xtra.co.nz>; Date: Thu, 16 Aug 2012 18:41:43 +1200 (NZST); Hi all, Message: 6 Date: Wed, 15 Aug 2012 17:01:26 -0700 From: "Jim W7RY" <jimw7ry@gmail.com> Subject: Re: [Amps] 87a will tell you, too To: <amps@contesting.com> Message-ID: <65BE1EFA07494CE1B0CE2D8; /archives//html/Amps/2012-08/msg00239.html (7,952 bytes)
2. Re: [Amps] K3 spike problem (score: 1): Author: Alek Petkovic <vk6apk@bigpond.com>; Date: Thu, 16 Aug 2012 17:16:09 +0800; Why are you all trying to tell Charles that the K3 has no overshoot when he has told you that it does? He has described the exact conditions under which it does it and he has stated that the radio is; /archives//html/Amps/2012-08/msg00240.html (10,133 bytes)
3. Re: [Amps] K3 spike problem (score: 1): Author: Bob Henderson <bob@5b4agn.net>; Date: Thu, 16 Aug 2012 10:21:18 +0000; So who is telling Charles his K3 doesn't suffer overshoot. I don't see anyone though I see plenty of folks drawing Charles attention to the fact that their K3s don't exhibit this problem. I have also; /archives//html/Amps/2012-08/msg00241.html (12,950 bytes)
4. Re: [Amps] K3 spike problem (score: 1): Author: Alek Petkovic <vk6apk@bigpond.com>; Date: Thu, 16 Aug 2012 19:36:13 +0800; G'day Bob. On the contrary. Several posters stated or implied that K3s did not overshoot at all. A couple of posts blamed Charles for the problem in that he did not do the proper calibration or align; /archives//html/Amps/2012-08/msg00243.html (16,005 bytes)
5. Re: [Amps] K3 spike problem (score: 1): Author: Bob Henderson <bob@5b4agn.net>; Date: Thu, 16 Aug 2012 12:27:16 +0000; It seems we have different interpretations of the same material. I didn't think anyone was blaming Charles. I just saw helpful pointers towards a solution. However, I observe Charles is prone to stir; /archives//html/Amps/2012-08/msg00244.html (19,807 bytes)
6. Re: [Amps] K3 spike problem (score: 1): Author: "Joe Subich, W4TV" <lists@subich.com>; Date: Thu, 16 Aug 2012 08:33:04 -0400; Bull roar! The problem is that he is not operating the radio under the same conditions as it was when calibrated at the factory and he has not performed the TX Gain alignment procedure *as documente; /archives//html/Amps/2012-08/msg00245.html (11,822 bytes)
7. Re: [Amps] K3 spike problem (score: 1): Author: Alek Petkovic <vk6apk@bigpond.com>; Date: Thu, 16 Aug 2012 20:32:56 +0800; No worries Bob. Cheers from cool sunny Perth. Alek. VK6APK -- http://www.qrz.com/db/vk6apk http://www.qrz.com/db/vk6ap Family Businesses: Petkovic Air & Gas. petkovicag@bigpond.com SP Electrical. www; /archives//html/Amps/2012-08/msg00246.html (23,650 bytes)
8. Re: [Amps] K3 spike problem (score: 1): Author: Alek Petkovic <vk6apk@bigpond.com>; Date: Thu, 16 Aug 2012 20:49:09 +0800; Ha ha. I've heard it all now. So the factory cannot produce a radio which anybody, anywhere can buy and take out of the box and get on the air straight away. The owner has to fix it first! . . . . Af; /archives//html/Amps/2012-08/msg00247.html (13,341 bytes)
9. Re: [Amps] K3 spike problem (score: 1): Author: "Joe Subich, W4TV" <lists@subich.com>; Date: Thu, 16 Aug 2012 08:59:46 -0400; No, that's not what I said. If Charlie is using a power supply with significantly higher (or lower) voltage than used by the Elecraft factory when the transceiver was built and calibrated, the gain; /archives//html/Amps/2012-08/msg00248.html (14,472 bytes)
10. Re: [Amps] K3 spike problem (score: 1): Author: "Carl" <km1h@jeremy.mv.com>; Date: Thu, 16 Aug 2012 12:44:27 -0400; After trying a couple of borrowed K3's Ive not had a spike problem using my PS but they are not a radio I would want to be stuck with. I use headphones for SSB and CW and the audio quality is among t; /archives//html/Amps/2012-08/msg00253.html (16,714 bytes)
11. Re: [Amps] K3 spike problem (score: 1): Author: "Roger (K8RI)" <k8ri@rogerhalstead.com>; Date: Thu, 16 Aug 2012 16:33:10 -0400; I too mainly use the headphones. One reason is because of a severe high frequency hearing loss and the other is a high ambient nose level in the shop and even here in the Den with the two big compute; /archives//html/Amps/2012-08/msg00256.html (9,233 bytes)
12. Re: [Amps] K3 spike problem (score: 1): Author: Jim Brown <jim@audiosystemsgroup.com>; Date: Thu, 16 Aug 2012 14:11:02 -0700; It should be noted that when high quality rigs like the K3 are used to drive a power amp, amplifier output power should be set by using just enough drive power, NOT by setting drive power higher and; /archives//html/Amps/2012-08/msg00258.html (9,447 bytes)
13. Re: [Amps] K3 spike problem (score: 1): Author: "Jim W7RY" <jimw7ry@gmail.com>; Date: Thu, 16 Aug 2012 14:24:15 -0700; Ha ha. I've heard it all now. So the factory cannot produce a radio which anybody, anywhere can buy and take out of the box and get on the air straight away. The owner has to fix it first! . . . . Af; /archives//html/Amps/2012-08/msg00259.html (8,560 bytes)
14. Re: [Amps] K3 spike problem (score: 1): Author: "Fern" <crc@cyberlink.bc.ca>; Date: Thu, 16 Aug 2012 19:35:27 -0600; Carl: I suspect that you tried the earlier production K3 as the early dsp board had some problems with distorted audio. I own an early production K3 and did not like the receive audio but when Elecra; /archives//html/Amps/2012-08/msg00264.html (9,882 bytes)
15. Re: [Amps] K3 spike problem (score: 1): Author: "Carl" <km1h@jeremy.mv.com>; Date: Fri, 17 Aug 2012 10:16:16 -0400; Fern, unless obsolete K3's were being shipped in 2007 and 2010 the audio still sucks in Heil headphones. Maybe Im spoiled by Kenwood audio. I'll buy whatever does the job, I could care less the count; /archives//html/Amps/2012-08/msg00271.html (10,703 bytes)
16. [Amps] K3 spike problem (score: 1): Author: "Jim Thomson" <jim.thom@telus.net>; Date: Fri, 17 Aug 2012 18:57:47 -0700; It should be noted that when high quality rigs like the K3 are used to drive a power amp, amplifier output power should be set by using just enough drive power, NOT by setting drive power higher and; /archives//html/Amps/2012-08/msg00300.html (10,504 bytes)

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