Re: [Elecraft] Eleventh Annual Stew Perry Topband Distance Challenge results posted
On Mon, 3 Sep 2007 20:46:45 -0400, DOUGLAS ZWIEBEL [EMAIL PROTECTED] wrote : http://www.kkn.net/~tree/2006_Stew.htm LOTS of QRP entries last year! Elecraft K2 mentioned in SOAPBOX by four separate entries. I'm sure there were more. K2 here (#2 qrp). Pat N8VW ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] Dayton comment
On Mon, 21 May 2007 16:49:24 -0400, Martin AA6E [EMAIL PROTECTED] wrote : I get 100 kb/s on my Sprint Treo 650, good enough for some purposes. But you get tired typing with the tiny keyboard! Your Treo 650 can act like a Bluetooth modem to a laptop, then you can type on that keyboard instead. I think the 700p will do this also, and at at a much faster rate. Pat N8VW ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] FS: KX1/KXAT1/KXPD1
SN#1510$400 I pay shipping, OBO you pay shipping. US Postal Money Order, US Orders only. Pat N8VW ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] FS: KX1/KXAT1/KXPD1
SN#1510$450 I pay shipping US Postal Money Order, US Orders only. Pat N8VW ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] Antenna wire question for long spans
On Thu, 17 Aug 2006 22:38:04 -0500, n0evh [EMAIL PROTECTED] wrote : I have an opportunity to put up an end fed long wire at our EOC for use on 40, 80 and 160. The span distance is 270 feet, a real handy length for regional communication on low bands. Height will be about 65 feet. We will tune it remotely with an SGC tuner. My concern is what type of wire will take that long of a span and hold up to wind and ice we have here in the midwest. Would appreciate comments from those who have had long spans of wire up in the air. Some kind of copperweld would be the best bet. The 500+ foot one at W8LT was up for 30+ years and used #10. History: http://arc.org.ohio-state.edu/history.php Picture of the longwire: http://arc.org.ohio-state.edu/images/station/old/3.jpg I worked a VU2 on 75m with that antenna one winter. Pat N8VW ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
RE: [Elecraft] kpa100 not tracking power with K2
On Mon, 14 Aug 2006 22:04:16 -0400, Don Wilhelm [EMAIL PROTECTED] wrote : Pat, If this condition is confined to 40 meters, check out the KPA100 specific information regarding the position of RFC10 (the one soldered to the antenna jack) on Tom Hammond's website www.n0ss.net . Already moved. If it happens on all bands, then you have another problem, so ask again and provide more information and we can lead you on a path of 'problem chasing'. First you will have to tell us whether the 'wattmeter' you refer to is an external wattmeter or the internal K2 indication. Both. Happens on all bands. Relative to an external wattmeter the power the K2 shows is wrong and the power the KPA100 outputs in some cases is not ok. Max out on the lowbands is almost 150 watts and pulled current is above 20 amps. On 20m and above output is more normal, output is never above 100w. For example the K2 reads 80, but the external wattmeter reads 100w. On 15m output is below normal. The K2 will read 110 and the max out is 90w. Approachs normal at around 70w. On 10m ouptput tracks like 20m except max out is about 110w. Pat N8vw 73, Don W3FPR -Original Message- Having problems with my kpa100 not tracking power with respect to the power knob on the K2. For example on 40m if the K2 says 40w the wattmeter shows 100 watts and the current meter on the power supply confirms the latter with ~18 amps. The leads me to suspect the power control circuit, but I'm unfamiliar with its operation. Any help would be appreciated. Pat N8vw ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
RE: [Elecraft] kpa100 not tracking power with K2
On Tue, 15 Aug 2006 08:53:22 -0400, Don Wilhelm [EMAIL PROTECTED] wrote : Pat, Something strange is happening here. First the facts of 'the case': 1) The KPA100 wattmeter should not be frequency dependent, and neither should your external wattmeter if it is functioning correctly. 2) Your KPA100 wattmeter apparently needs to be calibrated - use a good 50 ohm resistive dummy load and start over at the point where you adjust the trimmer cap - caution, a dummy load that is reactive will give you an incorrect indication of the null point. 3) If you use your external wattmeter to set the KPA100 forward power level, then the K2/100 indication should track with that external wattmeter afterwards. 4) Be aware that an external wattmeter may be in error by as much as 10 or 20% OF THE FULL SCALE READING! This is the typical spec for wattmeters. Be careful of the scale, on a 100 watt scale, that means that the error could be as large as 20 watts (at any point on the scale), so do not use a 100 watt scale to read a 20 watt level, use a 20 watt scale where the maximum error is only 4 watts. I cannot stress this subtle point strongly enough. Even a Bird wattmeter is speced at 5% of full scale, and that is only guaranteed after calibration! Don, I've done all this and taken it into account. I don't typically post unless I've spent several hours puzzling over a problem. You may have something else wrong there too, but as first steps, check the components in the wattmeter section and re-do the wattmeter calibration. Then see if the power control becomes proper. Here is what I think the problem is: U7 Pin 1 is listed as being between 0 and .8 volts on rx mine is 0 volts on transmit it is about whatever the supply voltage is, in this case 13.5v. Looking at the circuit, I see that it supplys voltage to Q5 and is part of the current sense. On transmit I measured zero volts on the emitter of Q5, TP1 and that end of R30. Seems like Q5 might be dead. I replaced Q5 and now U7 Pin 1 is about .5v on tx. However, U7 pin 7 is not right so guess Q4 might be suspect. Pat ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] kpa100 not tracking power with K2
Having problems with my kpa100 not tracking power with respect to the power knob on the K2. For example on 40m if the K2 says 40w the wattmeter shows 100 watts and the current meter on the power supply confirms the latter with ~18 amps. The leads me to suspect the power control circuit, but I'm unfamiliar with its operation. Any help would be appreciated. Pat N8vw ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] kx1 1510
Is on the air. Third qso was vi9ni on 40m. Guess it works. Pat N8VW ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] KAT100 problems...
On Tue, 29 Nov 2005 07:36:02 -0800, Mike Sexsmith [EMAIL PROTECTED] wrote : Hello all, I have a K2 setup (#4819) with the 100 watt tuner/amplifier in separate EC2 enclosure. Things have been FB for 3-4 months, but recently while using 100 watts the tuner is unable to get below a 9.9 SWR on 80 meters, even though other bands tune fine. KAT100 Tuner also does not seem to remember tune settings anymore when returning to a previously tuned frequency. It will retune from scratch each time... I rotated through the relays and all seem to click ok, although the relay for 80 m seems to sound slightly different...When using just the base K2 separated from EC2 the KAT2 internal tuner works fine and remembers settings. Board parts placement and solderwork appears ok. I wonder if this is RF getting into the tuner. With mine on 80m I have to reduce power to 11 watts to tune either antenna (zepp/80m inv-l) in the CW section of the band. If I don't the tuner goes crazy and somtimes turns itself back to CALP or the leds start acting weird or it looks like it has tuned, but it once you tx at full power the swr is full scale. On 80m phone I don't have these issue. On 160m it tunes the zepp no problem. Pat N8VW ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Fwd: Re: [Elecraft] k2 low output solution.
On Fri Aug 5 23:04:11 2005, Pat N8VW [EMAIL PROTECTED] wrote : After some more debugging it appears that the ksb2 is causing the problem. Removing it returns tx power to normal levels. Some might say, good you don't need ssb anyway. Looking at the dac u2 I find that pin 5 is at 6v when it should be ~.6v on tx and rx. Removing Q1 makes no difference so it appears that u2 is the problem. Received parts from elecraft, installed and power is now back to normal. Well, except testing with the kpa100 and a real wattmeter reveils that I have the low-power on 20m/17m. Hello, Elecraft it's me again! Pat N8VW ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] k2 low output solution.
On 4 Aug 2005 22:40:19 -0400, Pat N8VW [EMAIL PROTECTED] wrote : My K2 (2016) is suffering low output starting on 20 and wrapping around to 10 and 160 where I get little to no output. 80,40,30 are unaffected. Rx is great. Symptoms include, low output and inability to increase output beyond a certain level. Both symptons vary per band. When I'm less tired I'll produce some data. It sounds like something in the vpwr circuit. I checked the voltages on U8 and found pin 10 had 5v and 11 had 0v which is opposite of what it is in the manual. Thoughts anyone? After some more debugging it appears that the ksb2 is causing the problem. Removing it returns tx power to normal levels. Some might say, good you don't need ssb anyway. Looking at the dac u2 I find that pin 5 is at 6v when it should be ~.6v on tx and rx. Removing Q1 makes no difference so it appears that u2 is the problem. Any thoughts on this? Pat N8VW Pat N8VW ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] k2 low output
My K2 (2016) is suffering low output starting on 20 and wrapping around to 10 and 160 where I get little to no output. 80,40,30 are unaffected. Rx is great. Symptoms include, low output and inability to increase output beyond a certain level. Both symptons vary per band. When I'm less tired I'll produce some data. It sounds like something in the vpwr circuit. I checked the voltages on U8 and found pin 10 had 5v and 11 had 0v which is opposite of what it is in the manual. Thoughts anyone? Pat N8VW ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] rf output reading on s-meter problem
I just finished the kpa100/kat100 in the ec2. Somewhere along the line I've lost the rf output reading on 160/12/10 meters. All the other bands are ok and rf output looks fine. Anybody have any insight into what the check? 73 n8vw -- Pat Collins http://www.linuxcolumbus.com ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
