[Elecraft] 4W/G3ZEM
I want to acknowledge the superb performance of my K3, KPA500, KAT500 combo along with my little HF9V while away on my solo 'man in a tent' trip to Timor-Leste. The nominal 220V supply in T-L rapidly ranges +/-20% when it is available at all This would be a challenge for any equipment. Aside from occasional 60V high/low faults reported on the KPA500 everything worked faultlessly. System integration was perfect providing for instant pre-tuned band changes day and night. 15,200 Qs over 10 days CW only. I'm sure to have worked a lot of Elecrafters. K3, KPA500, KAT500 really is the combo of choice for fly-in fly-out DX-peditioning. Thanks to Elecraft for some first class equipment. 73 Bob, 5B4AGN __ 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 fault at H44KW (no pwr high SWR)
Not to contradict the expert but in addition to the specified parameters I would want to know the on resistance (Ron) and the gate threshold voltages were the same before I would sub. 73 Fred, AE6QL -Original Message- From: Elecraft [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Wayne Burdick Sent: Saturday, November 01, 2014 9:54 PM To: wa9fvp Cc: elecraft@mailman.qth.net Subject: Re: [Elecraft] KPA500 fault at H44KW (no pwr high SWR) Sure, as long as the pinouts are the same, and the voltage and current ratings meet your switching requirements. 73, Wayne N6KR On Nov 1, 2014, at 9:16 PM, wa9fvp rep...@willcoele.com wrote: Here's a funny story. Last week I ordered a KPA500. Two days later a nearby Ham dropped off his KPA500 that failed. His K3 was showing high SWR with no power. He purchased his a year ago and didn't want to pay the expense of shipping it back to the factory. I found a defective Q5 (see the TR switch schematic) on the Filter board. Q5, an IPA50R399P is a 550v MOS Power Transistor. My question is; Q4 a similar device (an IRFSL9N60A) with almost identical specifications except it's a 600V, MOS transistor. Can I use it as a replacement for an IPA50R399P? Jack WA9FVP Willco Electronics - Jack WA9FVP Sent from my TRS-80 :-) -- View this message in context: http://elecraft.365791.n2.nabble.com/KPA500-fault-at-H44KW-no-pwr-high -SWR-tp7570161p7594358.html Sent from the Elecraft mailing list archive at 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 n...@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 fptowns...@earthlink.net - No virus found in this message. Checked by AVG - www.avg.com Version: 2014.0.4765 / Virus Database: 4189/8494 - Release Date: 11/01/14 __ 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] KX3 Questions
Yes, the 2m module is a nice add-on; here at home, I use mine to drive transverters for 222, 902, 1296, 2304 and up. On 2m, with just 2w, I'm able to drive my SSPA to a full KW out (see the Oct 2012 QST article on the amp, or on the w6PQL web site). I do notice an instability on 2m, and hope Elecraft will address this when time permits. You won't notice this on SSB or FM, but in CW the carrier frequency jumps around a few Hz in a random fashion. You can also hear this on the KX3 LO signal in another receiver nearby tuned to the same frequency; it's barely detectable at 6m, and not at all on 10m and below, but it does make 2m CW sound less than pure. For me it was a great buy, and a replacement for older and less capable radios...I especially appreciate the ability to net transverter local oscillator offsets, and many of the other features. Jim __ 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] 4W/G3ZEM
Hi Bob, Thanks for the report, and congratulations on a successful expedition. 73, Wayne N6KR On Nov 1, 2014, at 10:59 PM, Bob Henderson b...@5b4agn.net wrote: I want to acknowledge the superb performance of my K3, KPA500, KAT500 combo along with my little HF9V while away on my solo 'man in a tent' trip to Timor-Leste. The nominal 220V supply in T-L rapidly ranges +/-20% when it is available at all This would be a challenge for any equipment. Aside from occasional 60V high/low faults reported on the KPA500 everything worked faultlessly. System integration was perfect providing for instant pre-tuned band changes day and night. 15,200 Qs over 10 days CW only. I'm sure to have worked a lot of Elecrafters. K3, KPA500, KAT500 really is the combo of choice for fly-in fly-out DX-peditioning. Thanks to Elecraft for some first class equipment. 73 Bob, 5B4AGN __ 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 n...@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
[Elecraft] Elecraft SSB net results for 10/26/2014
Here is the net report for the Elecraft SSB net from October 26, 2014. We had 24 participants. Station NameQTH Rig S/N W7QHD KurtAZ K2 1538 N0ECDickMN K3 5705 W0CZKen ND K3 457 KC5RY George TX K3 5208 W4PFM PaulVA K3 1673 KF5YBE Lee TX KX3 6988 NC0JW Jim CO KX3 1356 WB5JJA Roy OK K3 7877 W2RWA DickNY K3 2603 KF7JZH Ron ID KX3 2262 QRP KU4UW Ray NM KX3 6751 QRP KC0XT David CA KX3 6980 KF5IMA Bruce MS K2 3575 KE7FSD Al AZ K3 8532 W4RKS Jim TX K3 3618 VA7FX Al AZ KX3 3668 KN5LJohnTX K3 4448 K7GOD Galen WA K2 6533 KK4QDZ BillNC KX3 4515 AA7FArlen WA K3 8115 K4TMCaryVA K3 448 W6RTF Robert CA TS2000 WV5IDwayne TX K3 5287 NS7PPhilOR K3 1826 73, Phil, NS7P __ 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] Elecraft CW Net Announcement
Good Afternoon, After a week of incessant rain broken by only a few minutes of sunlight the fog is once again enveloping my house. The fir, cedar, and ferns are all enjoying the moisture; moss is glowing everywhere. The long range forecast is for a mild, but very wet winter. By the time the sun returns in May my house will be encrusted with a layer of moss and lichen. Last week's active sun has rotated away from us. The SFU is one hundred points lower today than it was last Sunday due to the reduced activity. Hopefully the ion load sent to the earth over the last few weeks has charged the ionosphere enough to let us work each other. What is odd is with all the solar flare activity there were no earth directed CMEs. Please join us this afternoon and evening. 14050 kHz at 2300z Sunday (3 PM PST Sunday) 7045 kHz at 0200z Monday (6 PM PST Sunday) 73, Kevin. KD5ONS Please notice: Daylight Savings has ceased with the clock switching back to regular time. The nets are held at the same local time as they were last week; only the UTC time has changed. - __ 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 fault at H44KW (no pwr high SWR)
Hi fred, The parameter is Rds(on),max The IRFSL9N60A is .75 ohms at 9.2 amps and the IPA50R399CP is .399 ohms at 9 amps. Q4 and Q5 are in series with a 100 ohm resistor and the diode so the difference in the R DS(on),max has little effect. Jack WA9FVP Willco Electronics - Jack WA9FVP Sent from my TRS-80 :-) -- View this message in context: http://elecraft.365791.n2.nabble.com/KPA500-fault-at-H44KW-no-pwr-high-SWR-tp7570161p7594367.html Sent from the Elecraft mailing list archive at 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] Err AT3
Curious little bugger; since yesterday when I turned the K3 on and got a message on start-up saying ERR AT3, I find this happens all of the time now. In this error message state I can not transmit. What it takes to resolve this is to tap on a function switch like band change, mode, split Ect. and it immediately resolves to a perfectly working K3. It was recently back home for all upgrades/updates and has been working flawlessly, till this condition. Any suggestions on what I might do to resolve this before it mutates into something less easy to resolve? Thanks 73, Gary KA1J __ 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
