RE: [Elecraft] Earning Customer Loyalty
Hi Ken, I only recently qualified as a radio amateur but it's impossible to avoid stories like these. I've yet to see one negative comment aimed at Elecraft and even the most critical of reviews of Elecraft products only seem to come up with minor suggestions which often times find their way into the products either as a future option or a firmware update. The other benefit of dealing with Elecraft is that you deal with Elecraft and not a dealer or distributor who, even in my limited experience, seldom approach acceptable levels of customer service. As a UK amateur, the only downside is that the recent massive devaluation of the pound has made Elecraft products very expensive. If only we'd joined the Euro :( But then again, as this has had the effect of pushing up prices of other manufacturers products, you're certainly no worse off choosing Elecraft.David (M6SPV) Date: Wed, 10 Dec 2008 15:49:32 -0800From: [EMAIL PROTECTED]: [EMAIL PROTECTED]: [Elecraft] Earning Customer Loyalty I had a two week old K-3 fail after I brought it to PEI for CQWW. The VFO B knob stopped working so I couldn’t even change menu settings. I was able to use the radio in CQWW. I brought it home, got an RMA and sent it in to Gary. Within days he called me to tell me it wouldn’t fail on the bench, but that he was going to change the VFO B encoder anyway. That is the kind of pro-active customer service that earns my customer loyalty. I know, I’m preaching to the choir here. Still, it is nice to see a company, any company, doing it right with both product and service. 73, Ken, K6LA / VY2TT _ Get a bird’s eye view of the world with Multimap http://clk.atdmt.com/GBL/go/115454059/direct/01/___ 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] Earning Customer Loyalty
My radio is S/n #1272 The B encoder failed 1 day after build. An email brought a new encoder to Scotland in 3 days, but why did it fail in the first place? Is it a bad batch? Tom GM4FDM I just love my K3 Ken Widelitz wrote: I had a two week old K-3 fail after I brought it to PEI for CQWW. The VFO B knob stopped working so I couldn’t even change menu settings. I was able to use the radio in CQWW. I brought it home, got an RMA and sent it in to Gary. Within days he called me to tell me it wouldn’t fail on the bench, but that he was going to change the VFO B encoder anyway. That is the kind of pro-active customer service that earns my customer loyalty. I know, I’m preaching to the choir here. Still, it is nice to see a company, any company, doing it right with both product and service. 73, Ken, K6LA / VY2TT ___ 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 --- avast! Antivirus: Inbound message clean. Virus Database (VPS): 081210-0, 10/12/2008 Tested on: 11/12/2008 09:20:37 avast! - copyright (c) 1988-2008 ALWIL Software. http://www.avast.com -- So I met the bloke who invented crosswords today. I can't remember his name, it's P something T something R. --- avast! Antivirus: Outbound message clean. Virus Database (VPS): 081210-0, 10/12/2008 Tested on: 11/12/2008 09:25:53 avast! - copyright (c) 1988-2008 ALWIL Software. http://www.avast.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
RE: [Elecraft] Earning Customer Loyalty
I think many of us experienced failed encoders, mine failed the 1. Day of arrival. VFO A. But as always the customer service from Elecraft is excellent and a new encoder arrived after a few days. Most likely there have been a tough pressure at the production line in the past and the quality control have failed in some cases. I can live with this since the products otherwise shines like diamonds :-) 73, Trond LA8NHA K1#2575 K2#6594 K3#1933 -Opprinnelig melding- Fra: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] På vegne av Tom Wylie Sendt: 11 December, 2008 10:26 AM Til: Ken Widelitz Kopi: elecraft@mailman.qth.net Emne: Re: [Elecraft] Earning Customer Loyalty My radio is S/n #1272 The B encoder failed 1 day after build. An email brought a new encoder to Scotland in 3 days, but why did it fail in the first place? Is it a bad batch? Tom GM4FDM I just love my K3 Ken Widelitz wrote: I had a two week old K-3 fail after I brought it to PEI for CQWW. The VFO B knob stopped working so I couldnt even change menu settings. I was able to use the radio in CQWW. I brought it home, got an RMA and sent it in to Gary. Within days he called me to tell me it wouldnt fail on the bench, but that he was going to change the VFO B encoder anyway. That is the kind of pro-active customer service that earns my customer loyalty. I know, Im preaching to the choir here. Still, it is nice to see a company, any company, doing it right with both product and service. 73, Ken, K6LA / VY2TT ___ 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 --- avast! Antivirus: Inbound message clean. Virus Database (VPS): 081210-0, 10/12/2008 Tested on: 11/12/2008 09:20:37 avast! - copyright (c) 1988-2008 ALWIL Software. http://www.avast.com -- So I met the bloke who invented crosswords today. I can't remember his name, it's P something T something R. --- avast! Antivirus: Outbound message clean. Virus Database (VPS): 081210-0, 10/12/2008 Tested on: 11/12/2008 09:25:53 avast! - copyright (c) 1988-2008 ALWIL Software. http://www.avast.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 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] K3 and MixW PSK31
Seasons Greetings one and all, Well this year I officially became entitled to have senior moments and being one who always takes up options for freebies, I decided my time had arrived to test out how good a senior moment I could create. So to all those who tried so hard to get my K3 to Tx some data, my sincere apologies for dragging you all into my senior momentI DID look at the back of the PC, I DID check that Line IN and Line OUT were connected to the K3 correctly. But, alas I looked over the top of the PC and somehow I managed to plug the audio cables into Line IN and Mic INI know now of course this was wrong and I needed to plug into Line OUT on the PC and not the MIC.:-( So having to go and explain myself to the XYL was indeed a most painful experience. I am way too embarrassed to repeat here what was said, suffice to say my protestations were met with derision, giggles, and in the end downright belly laughs. I have spent the last few hours hiding my face in the corner and remaining very, very quiet. So again, thankyou for the support and advice folks, aside from my embarrassment, I am a happy camper yet again. Best wishes for Xmas, Gary K3/100 S/N 679 I just got lost in thought. It was unfamiliar territory ___ 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] Earning Customer Loyalty
This thread is only the second I've seen mentioning failed decoders, so 3 of you here I think and the previous mention, back in February I think was one - that's 4 out of at least 1933 units! Rather a low failure rate, although of course very inconvenient if it's you. 73 de M0XDF, K3 #174 -- Dear God, Did you mean for the giraffe to look like that or was it an accident? -Norma [Children's Letters to God, 1991] On 11 Dec 2008, at 09:48, Trond Stubberud wrote: I think many of us experienced failed encoders, mine failed the 1. Day of arrival. VFO A. But as always the customer service from Elecraft is excellent and a new encoder arrived after a few days. Most likely there have been a tough pressure at the production line in the past and the quality control have failed in some cases. I can live with this since the products otherwise shines like diamonds :-) ___ 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] K3: Poor AM receive audio quality
Relative to my 1983 Kenwood R-2000 (http://www.rigpix.com/kenwood/r2000.htm), my K3 sounds awful when listening to any AM broadcast stations. I have the 6KHz and 12KHz filters installed and despite widening the AM IF bandwidth to 10KHz and spending many hours fussing about with the RX EQ, I cannot make the K3 to sound even remotely enjoyable. Quite frankly, this is really annoying me although I am impressed by the K3 thanks Elecraft. I've ordered an Icom SP20 in the hope this will help but while waiting for it to arrive I did some research and stumbled on this archived thread - http://www.mail-archive.com/elecraft@mailman.qth.net/msg52230.html, which suggests the K3's DSP attenuates the IF passband below 250Hz and the frequency range of the IF passband will be widened in a firmware upgrade. So I have the following questions - Why have the low frequencies been attenuated? Is 250Hz the -6dB or -3dB point? Will the passband be widened in an upgrade? I do admit though that the K3's SSB audio is FAR superior to that of the R2000 (but it does have a VFO resolution of only 100Hz). The K3's SSB audio does sound great. Shane VK5ABQ -- View this message in context: http://n2.nabble.com/K3%3A-Poor-AM-receive-audio-quality-tp1642606p1642606.html Sent from the Elecraft mailing list archive at Nabble.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] failed encoders
As far as I am concerned, there have been a lot more failed encoders than have been cited on the elecraft reflector. I personally has three guys call me to inquire about it (months ago now) and none of them posted anything here. The first guy got a try swapping with VFO A approach and since VFO A then failed, it confirmed a bad encoder which was promptly replaced. Since then, I think failed encoders are simply replaced without asking the user to remove the FP and swap encoders AB. It's too bad that parts fail, but it is a great story that they are replaced so quickly. I think this is called rescue service in the customer support field. de Doug KR2Q ___ 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] failed encoders, addendum
Oops...hit SEND too fast. Not rescue service but service recovery strategies. de Doug KR2Q ___ 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] Earning Customer Loyalty
Yes, accepted and I'm sure Elecraft have a handle on how many returns they are getting. I also understand that not everyone air's their problems here, which makes such judgements difficult, or even invalid - something I hadn't considered. 73 de M0XDF, K3 #174 -- The trees that are slow to grow bear the best fruit. -Moliere, actor and playwright (1622-1673) On 11 Dec 2008, at 13:34, wa6riv wrote: I also had a failed B encoder. Many of us work with Elecraft and don't say much. Some component failure is expected. Ted In a message dated 12/11/08 02:03:41 Pacific Standard Time, [EMAIL PROTECTED] writes: This thread is only the second I've seen mentioning failed decoders, so 3 of you here I think and the previous mention, back in February I think was one - that's 4 out of at least 1933 units! Rather a low failure rate, although of course very inconvenient if it's you. 73 de M0XDF, K3 #174 -- Dear God, Did you mean for the giraffe to look like that or was it an accident? -Norma [Children's Letters to God, 1991] On 11 Dec 2008, at 09:48, Trond Stubberud wrote: I think many of us experienced failed encoders, mine failed the 1. Day of arrival. VFO A. But as always the customer service from Elecraft is excellent and a new encoder arrived after a few days. Most likely there have been a tough pressure at the production line in the past and the quality control have failed in some cases. I can live with this since the products otherwise shines like diamonds :-) ___ 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
Re: [Elecraft] K102 AUX I/O Module toroid question
Can you get the required number of turns (on the same core) with that wire? Wire size is usually not important other than the physical requirement that the turns fit onto a single layer winding (overlapping wires increases the inter-turn capacitance). The most important factor for a toroid inductor is the number of turns for any given core size and permeability. BTW - it is much easier if you start the winding in the center of the wire (that is 1 turn) - wind half the number of turns with one end of the wire, flip it over and wind the remainder with the remaining wire end. 73, Don W3FPR KB9BVN wrote: Don, Just for info...could you use insulated 24g cross connect wire for this roid, thus making it easier to wind with no skinned spots on the insulation? - Original Message - From: Don Wilhelm [EMAIL PROTECTED] To: Sam M [EMAIL PROTECTED] Cc: elecraft@mailman.qth.net Sent: Wednesday, December 10, 2008 7:53 PM Subject: Re: [Elecraft] K102 AUX I/O Module toroid question The 23 in the core designation is the outside diameter, so yes, you have the correct core. The Ferrite cores have no color markings, they are a dull gray. It is the powdered iron cores that are marked with colors. As for tips on winding without scraping the wire enamel - *push* the wire through the core center instead of trying to pull it through. Yes, you will have to pull to snug up the last inch or so. In addition, to make a neat toroid winding, on each turn, form the wire around the *outside* of the core with a free finger or thumb before pulling it tight. The wire lengths given in the Elecraft manuals are usually generous, which assures adequate lead length no matter how sloppy the toroid winding may be. The ferrite cores sometimes have sharp corners. You can round off those corner edges carefully with a file or sandpaper if they are exceptionally sharp. 73, Don W3FPR ___ 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 -- loss of output power control
Brian, You have some problem with the wattmeter in the KPA100 - T4, D16, D17, R26, R27, U5, U6 or on the VRFDET signal pathway back to the K2 control board. You seem to have a somewhat normal voltage variation at U5 pin 7, which (for the moment) says everything is working through U5, but check the U6 pin 6 output under the same conditions and also check for the same voltage at K2 control board P4 pin 10. Since this happened only by removing and re-installing the KPA100, be suspicious of a solder joint that is not well soldered - those may work for a while and then when touched can fail. 73, Don W3FPR Brian Lloyd wrote: Our K2 was working perfectly until I opened it up, tightened the power transistor mounting screws, realigned the receiver, and put it back together. Now power output no longer follows the power setting. When set to a power output less than 10W, I hear the bypass relay but I get the High Cur display (momentarily) and the display then shows a power output of 0.3W with an SWR of 3.0. Output power as measured with a W1 is 20W. If I advance the power control, as soon as I pass the 10W point the PA comes on and the power jumps to 150W output. Turning the power level control fully CCW (0.1W setting) produces 6W of output. Looking at pin 7 of U5 on the KPA100 I can see good analog voltage that varies with power. I can see the value of VFWD change when the range changes (SCALE changes) also. I can also see varying VFWD at pin 2 of U1 so this does not appear to be an analog problem. FWIW, voltages at pin 2 of U1 for various power outputs are: 6W -- 0.15V 20W -- 0.30V 150W -- 0.29V At pin 7 of U5 (U5b): 6W -- 0.15V 20W -- 0.30V 150W -- 0.77V On the t-r menu item I have 8r hold set. I do have output on VRFDET but the value only varies from about 0.3V-0.7V so that appears to be working also. I am planning to fly to Dominica on Friday and operate from there but I can't take the K2 unless I solve this problem. Suggestions? ___ 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] failed encoders
In a recent message, DOUGLAS ZWIEBEL [EMAIL PROTECTED] wrote ... As far as I am concerned, there have been a lot more failed encoders than have been cited on the elecraft reflector. The problem with the shaft encoders used in the K3 is with bad design. The body of the encoder is held together with four long, tiny rivets that rely on their tightness to hold the thing together. If hard pressure is applied to the spindle, this can push the encoder apart. Unlike some of the old-style potentiometers, there is no circlip fitted to the spindle to prevent it pushing in. The problem with my VFO A encoder occurred after receiving my K3 back from Aptos after a repair. Sufficient pressure on the knob during transit can cause the problem as could also the pressure applied when fitting the rubber finger grip to the main tuning knob. The design of the encoder could be improved by the use of a circlip on the spindle and/or by the use of small threaded screws in place of the existing rivets. I have drawn this to the attention of Elecraft with a suggestion that a word of caution be included in the Assembly Manual. I am unsure as to whether this has yet happened. -- David G4DMP Leeds, England, UK -- ___ 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] K3 Monitor
Lyle, Thanks for the info! It sounds absolutely correct as the DVR that I am inputting on line in from my computer sounds a lot better in the monitor. I did find out when using line in that the mic is still HOT which makes sense. This leads to the question??? With the KDVR3 when sending over the air is the mic muted? I don't have a KDVR3 yet but am planning on getting it for at least one of my K3's. Ed W0SD Lyle Johnson wrote: ... Something does not seem correct with my monitor audio, ie it is not a true representation of what the transmitter sounds like. Does anyone have any ideas? With MON, you hear the slightly delayed audio from the monitor as well as your own voice. This may be perceived by some as a slight echo. The delay is due to how DSP works. Tx audio is processed by the DSP (leveled, filtered and equalized), converted to a nominal 15 kHz IF, clipped (if compression is on) and then sampled, downconverted to audio, filtered again, and passed to the speaker or headphones (or, now, LINE OUT :-) There is some delay associated with all of this processing. This is most likely what you are hearing as a slight echo effect. If you record MON and then play it back while you are not speaking, you'll hear no echo. If you have the KDVR3 installed, listen to a voice message. No echo. 73, Lyle KK7P ___ 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] K3 Monitor
...I did find out when using line in that the mic is still HOT which makes sense. This is true if MIC+LINE IN is turned on; otherwise MIC or LINE IN is active, but not both. This leads to the question??? With the KDVR3 when sending over the air is the mic muted? I believe it is muted in the current firmware. 73, Lyle KK7P ___ 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] K3 Monitor
Ed raises a good question, with the built in isolation transformers in the K3, computer audio into the Line in now sounds great. With the mic+line enabled to allow the computer to call CQ's and a live mic connected to either the FPL or RPL, is there a way to mute the live mic while audio comes in the LINE in? Or does the noise gate only affect the mic amp stages? I guess the only way to do this would be if the rig is keyed via RTS or DTR, only the line in is active, but if keyed via vox or PTT, the mic is active??? Thanks, Terry -W8ZN -- Original message -- From: Ed Gray W0SD [EMAIL PROTECTED] Lyle, Thanks for the info! It sounds absolutely correct as the DVR that I am inputting on line in from my computer sounds a lot better in the monitor. I did find out when using line in that the mic is still HOT which makes sense. This leads to the question??? With the KDVR3 when sending over the air is the mic muted? I don't have a KDVR3 yet but am planning on getting it for at least one of my K3's. Ed W0SD Lyle Johnson wrote: ... Something does not seem correct with my monitor audio, ie it is not a true representation of what the transmitter sounds like. Does anyone have any ideas? With MON, you hear the slightly delayed audio from the monitor as well as your own voice. This may be perceived by some as a slight echo. The delay is due to how DSP works. Tx audio is processed by the DSP (leveled, filtered and equalized), converted to a nominal 15 kHz IF, clipped (if compression is on) and then sampled, downconverted to audio, filtered again, and passed to the speaker or headphones (or, now, LINE OUT :-) There is some delay associated with all of this processing. This is most likely what you are hearing as a slight echo effect. If you record MON and then play it back while you are not speaking, you'll hear no echo. If you have the KDVR3 installed, listen to a voice message. No echo. 73, Lyle KK7P ___ 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] Who is using CW to PSK31 with K3?
I have a question or two for those using CW to PSK31. Please reply directly off board. 73, Will ___ 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] K3 Monitor
I was happy with the K3 monitor and transmit audio after upgrading from 2.48 (I think) to 2.67. I was happy with TX power stability after the TX calibration on all bands; the defaults were far off on most bands.. Ignacy -- View this message in context: http://n2.nabble.com/K3-Monitor-tp1641973p1643837.html Sent from the Elecraft mailing list archive at Nabble.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
Re: [Elecraft] K102 AUX I/O Module toroid question
K102 is installed and working FB, I tried again with the small red wire, but this time remembered to not pull the wire through, also did the start in the middle style of winding. I know I nicked one spot but it was in the clear and appeared not to be in contact with any other turns so I let it go. Since it powers up ok and HRD controls the K2 as needed, I guess I got away with it. Thanks to all for the suggestions. Once again the Elecraft community supplied the needed tips for the clueless, hi hi. -- GB 73 KA5OAI Sam Morgan http://linuxbasics.org Linux, the lifetime learning experience. replies below: Can you get the required number of turns (on the same core) with that wire? Wire size is usually not important other than the physical requirement that the turns fit onto a single layer winding (overlapping wires increases the inter-turn capacitance). The most important factor for a toroid inductor is the number of turns for any given core size and permeability. BTW - it is much easier if you start the winding in the center of the wire (that is 1 turn) - wind half the number of turns with one end of the wire, flip it over and wind the remainder with the remaining wire end. snip Just for info...could you use insulated 24g cross connect wire for this roid, thus making it easier to wind with no skinned spots on the insulation? snip The 23 in the core designation is the outside diameter, so yes, you have the correct core. The Ferrite cores have no color markings, they are a dull gray. It is the powdered iron cores that are marked with colors. As for tips on winding without scraping the wire enamel - *push* the wire through the core center instead of trying to pull it through. Yes, you will have to pull to snug up the last inch or so. In addition, to make a neat toroid winding, on each turn, form the wire around the *outside* of the core with a free finger or thumb before pulling it tight. The wire lengths given in the Elecraft manuals are usually generous, which assures adequate lead length no matter how sloppy the toroid winding may be. The ferrite cores sometimes have sharp corners. You can round off those corner edges carefully with a file or sandpaper if they are exceptionally sharp. ___ 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] K3 Monitor
Terry, I believe Lyle answered that already. I do not believe that muting the mic when PTT is asserted from the RS-232 input is a good idea. Many logging programs use the RS-232 signals to activate transmit. Some mics (mostly handhelds) are muted until their PTT switch is depressed, but desk mics are usually wired with live AF signals. 73, Don W3FPR [EMAIL PROTECTED] wrote: Ed raises a good question, with the built in isolation transformers in the K3, computer audio into the Line in now sounds great. With the mic+line enabled to allow the computer to call CQ's and a live mic connected to either the FPL or RPL, is there a way to mute the live mic while audio comes in the LINE in? Or does the noise gate only affect the mic amp stages? I guess the only way to do this would be if the rig is keyed via RTS or DTR, only the line in is active, but if keyed via vox or PTT, the mic is active??? Thanks, Terry -W8ZN ___ 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] K3: Noisey Fans
K3/100 SN 474 (kit). DEAD QUIET fans. They work. I've checked. I just can't hear them. Sweet. Terry, W0FM ___ 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] Muting mic when voice keying (was K3 Monitor)
Don Wilhelm-4 wrote: I do not believe that muting the mic when PTT is asserted from the RS-232 input is a good idea. Many logging programs use the RS-232 signals to activate transmit. Actually, I think that would be an excellent option: mute the mic input when PTT is asserted via the CAT RS-232 RTS/DTR line. In a typical contest setup, your computer logger/dvk'er will feed audio into K3 line in and assert PTT via RS-232 CAT port. When you use your mic, you can use K3 PTT input. This would solve N1MM Logger's inability to mute the K3 mic while voice keying because the K3 doesn't offer separate level controls for mic and line (like the Orion does). 73, Barry N1EU -- View this message in context: http://n2.nabble.com/K3-Monitor-tp1641973p1643966.html Sent from the Elecraft mailing list archive at Nabble.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
Re: [Elecraft] K3 Monitor
... With the mic+line enabled to allow the computer to call CQ's and a live mic connected to either the FPL or RPL, is there a way to mute the live mic while audio comes in the LINE in? No. The problem is, what if you want the MIC to override the LINE IN? Or vice versa? It quickly gets complicated. If you choose MIC+LINE, then its up to you to not make noise while the computer is sending audio, and to be sure the computer is quiet when you speak :-) Or does the noise gate only affect the mic amp stages? Tx Gate, if enabled, applies to the transmit audio path, regardless of source. 73, Lyle KK7P ___ 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] Who is using CW to PSK31 with K3?
[EMAIL PROTECTED] wrote: I have a question or two for those using CW to PSK31. Please reply directly off board. I know you asked for a direct reply, but the answer is that nobody is using it because it is not fully implemented yet. It is one of the top items on Elecraft's to-do list. -- 73, Vic, K2VCO Fresno CA http://www.qsl.net/k2vco ___ 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] Muting mic when voice keying (was K3 Monitor)
I do not believe that muting the mic when PTT is asserted from the RS-232 input is a good idea. Many logging programs use the RS-232 signals to activate transmit. Actually, I think that would be an excellent option: mute the mic input when PTT is asserted via the CAT RS-232 RTS/DTR line. In a typical contest setup, your computer logger/dvk'er will feed audio into K3 line in and assert PTT via RS-232 CAT port. When you use your mic, you can use K3 PTT input. The K3 has a single internal line for PTT. It doesn't matter if it is the front panel MIC, the rear panel PTT IN (e.g., footswitch), or RTS|DTR from the RS232 connector. It can respond to PTT from any available source; it cannot distinguish the source. This would solve N1MM Logger's inability to mute the K3 mic while voice keying because the K3 doesn't offer separate level controls for mic and line (like the Orion does). The K3 in fact does have separate gain controls for the LINE IN and MIC paths. When using the front panel, you can only adjust one at a time, since there is only one knob. An external program could easily set the active Tx audio path from MIC to LINE IN, send the audio, then switch the Tx audio path back to MIC. 73, Lyle KK7P ___ 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] Muting mic when voice keying (was K3 Monitor)
I must be missing something. From the way I read the manual you just turn Line in on and set the level and then you go back to Mic + line in and the level for line in is retained and different than the mic level. Did I not understand the manual? Barry N1EU wrote: Don Wilhelm-4 wrote: I do not believe that muting the mic when PTT is asserted from the RS-232 input is a good idea. Many logging programs use the RS-232 signals to activate transmit. Actually, I think that would be an excellent option: mute the mic input when PTT is asserted via the CAT RS-232 RTS/DTR line. In a typical contest setup, your computer logger/dvk'er will feed audio into K3 line in and assert PTT via RS-232 CAT port. When you use your mic, you can use K3 PTT input. This would solve N1MM Logger's inability to mute the K3 mic while voice keying because the K3 doesn't offer separate level controls for mic and line (like the Orion does). 73, Barry N1EU No virus found in this incoming message. Checked by AVG - http://www.avg.com Version: 8.0.176 / Virus Database: 270.9.16/1843 - Release Date: 12/11/2008 8:36 AM ___ 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] K3
Pardon my gushing. I just installed the KRX3, the KDVR3, and the K3AFMDKT in my K3 #384, along with the MCU 2.72 / DSP 1.98 beta firmware. What a great radio! It just gets better and better! Thanks Wayne, Eric and Lyle and all your colleagues at Elecraft. ___ 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] Muting mic when voice keying (was K3 Monitor)
My K3 has separate level controls for mic and line in. s/n 699. I use line in for computer-generated audio, as many do I'm sure. Monty K2DLJ This would solve N1MM Logger's inability to mute the K3 mic while voice keying because the K3 doesn't offer separate level controls for mic and line (like the Orion does). 73, Barry N1EU ___ 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] Who is using CW to PSK31 with K3?
Vic K2VCO wrote: I know you asked for a direct reply, but the answer is that nobody is using it because it is not fully implemented yet. It is one of the top items on Elecraft's to-do list. I think it is fully implemented now. I don't actually use it, but I tried it out and it appeared to work. - Julian, G4ILO. K2 #392 K3 #222. http://www.g4ilo.com/ G4ILO's Shack http://www.ham-directory.com/ Ham Directoryhttp://www.g4ilo.com/kcomm.html KComm for Elecraft K2 and K3 -- View this message in context: http://n2.nabble.com/Who-is-using-CW-to-PSK31-with-K3--tp1643847p1644129.html Sent from the Elecraft mailing list archive at Nabble.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
Re: [Elecraft] Who is using CW to PSK31 with K3?
Actually, it is implemented, and I do use it. Bob NW8L On Thu, Dec 11, 2008 at 9:44 AM, Vic K2VCO [EMAIL PROTECTED] wrote: [EMAIL PROTECTED] wrote: I have a question or two for those using CW to PSK31. Please reply directly off board. I know you asked for a direct reply, but the answer is that nobody is using it because it is not fully implemented yet. It is one of the top items on Elecraft's to-do list. -- 73, Vic, K2VCO Fresno CA http://www.qsl.net/k2vco ___ 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] K3 power settings
Hi all, I am just starting to get back into CW after years not touching the key and whilst playing on the K3 it occurred to me how good it would be if the K3 not only remembered power levels by band but also by mode. I tend to use 5w on CW and 100W on phone (I know, odd isn't it?) and it is a pain to keep moving between the two. What do you all think? I know I can do it using a memory but that is not the point. 73 Ian -- Ian J Maude, G0VGS SysOp GB7MBC DX Cluster Member RSGB, GQRP K2 #4044 |K3 #455 http://www.amateurradiotraining.org ___ 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] Tis the Season! Ho Ho Ho
I pulled this up from last year, seemed like a good time to re-post! With apologies to Clement Clarke Moore. Twas the night before shipment when all through the shop the Elecraft crew exhausted and ready to drop! The K3's were stacked by the back door with care in hopes the UPS man would soon be there The hams were all tired of the air-waves so dead with K3 block diagrams scrambled in their heads When out in the street there arose such a squeal It must be a truck his brakes on the steel I sprang from my chair from in front of the rig my heart skipped a beat it must be something big! And what to my wondering eyes did appear but a shiny brown truck must be full of gear! Mr. Brown quickly hopped from out of his truck he had a big box could this be good luck? He walked to my door and gave his sharp knock I could only just stand there I guess I was in shock I opened the door and what must this be It was from Aptos It is my K3!!! As I picked up the box I thought I could hear The Elecraft gang Wishing...a good DX year! 73 all! Roger K7SJ K3 #75 ___ 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] KDVR3 Firmware request
First a little back ground as Wayne probably has not read the line-In + Mic discussion. When one uses the computer for a DVR for contesting an easy way to do it is to take advantage of the Line Input but given one also wants to use the mic for operating then the MIC is hot during the playing of the DVR. For SO2R there are added issues of switching the DVR from the computer and the mic between the two radios. Lyle KK7P pointed out that an external program could easily set the active Tx audio path from MIC to LINE IN, send the audio, then switch the Tx audio path back to MIC. The problem is to get your program author to make those changes for the K3 but definitely an option! I am thinking the KDVR3 is a better way to go to cure the hot mic and associated sound card problems. It also should get rid of the black box for SO2R DVR with two radios with a KDVR3 in each radio. You still have the issue of switching the mic between two radio. Given there are 8 messages available with the KDRV3 that would be enough for different contests and one could have some for guest operators. I assume once you choose the second bank you stay there and you don't have to tap rec/M1, rec/m2, etc. each time to use what I would call message 5 and 6. It takes us a long time to get a DVR that is high quality, does not have pauses, starts right, ends promptly, has the right amount of enthusiasm etc. What I am saying is once you have a good one you want to save it for future use. KDVR3 Firmware request: Would it be possible to have a KDVR3 menu item where you could set it so you could not record over the top, ie erase,an existing message without going back and changing this menu item? Another reason for this request is if I understand what I read that doing over the air recording would erase an existing message if the buffer is full. It would be better if the on the air recording and play back used separate memory but I don't think that is the case or for that matter realistic. I apologize if it already works this way. Anyway it seems to me there could be some conflict with using the on the air record function and accidentally erasing DVR messages. Obviously there is the mistake category where you accidentally record over/erase a message and that is why a firmware choice to prevent this would be a nice feature. Basically like the computer message with the second chance DO you really want to do this idea. There are a lot of on the air contest DVR's messages that are horrible! Here at W0SD we don't ever want to have one of those so we spend a lot of time getting a good one and even then one has to be careful that other factors such as sound card problems, ground loops, etc. don't mess things up. Of course there is the issue of getting the levels and sound between the DVR and the Mic to sound the same. That is why I would like to have a firmware choice to preventing erasing a good message on the KDVR3 without being very intentional about it. There was a request to use the computer key board to play the message and that has merit rather than tapping the M1, etc. button on the K3 but I can see where this at best would involve making it available to programmers but this would be a good thing. When you go to SO2R with two K3's this is also a contest software job but having it available to programmers would be a good thing. Conclusion: I am thinking the KDVR3 really has a market for contesters especially with the firmware taking care of some things while at the same time not messing things up for the operators who mainly want the KDVR3 to record for on the air play back or I assume you can go to TEST mode and send to line out and record on your computer, etc. to save or send to others to listen to. This just got me thinking: I wonder if it could be possible to send a DVR from the computer on the line in and be recorded by the KDVR3. This would be a relatively fast way of getting a DVR into the K3? Maybe it is but if so I missed it. Ed W0SD Ed W0SD Thanks, Ed W0SD ___ 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] Who is using CW to PSK31 with K3?
Julian, G4ILO wrote: I think it is fully implemented now. I don't actually use it, but I tried it out and it appeared to work. You are correct, my original statement was wrong. I have been informed that there was a problem in the initial implementation but it has been fixed and is working. Sorry...this stuff happens too fast for me to keep track of it! -- 73, Vic, K2VCO Fresno CA http://www.qsl.net/k2vco ___ 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] Earning Customer Loyalty
Much more to it than mere inconvenience. I spent hours on the job - diagnosis by disassembling the radio, swapping the encoders, reassembling the radio, verifying the problem followed the encoders, getting a replacement encoder from Elecraft, disassembling the radio, installing the replacement encoder, then reassembling the radio. Most of you guys who assembled the kit know how difficult front panel remove/install is. I feel that my problem could have been avoided if Elecraft had been testing each individual module before shipping them - mine was DOA, and was likely DOA before shipment. I suggested then that Elecraft should check each and every module before shipment - should be pretty easy to do there on the bench in a test device. I don't know if they are testing them now. Jerry W4UK At 04:57 AM 12/11/2008, David Ferrington, M0XDF wrote: This thread is only the second I've seen mentioning failed decoders, so 3 of you here I think and the previous mention, back in February I think was one - that's 4 out of at least 1933 units! Rather a low failure rate, although of course very inconvenient if it's you. 73 de M0XDF, K3 #174 -- Dear God, Did you mean for the giraffe to look like that or was it an accident? -Norma [Children's Letters to God, 1991] On 11 Dec 2008, at 09:48, Trond Stubberud wrote: I think many of us experienced failed encoders, mine failed the 1. Day of arrival. VFO A. But as always the customer service from Elecraft is excellent and a new encoder arrived after a few days. Most likely there have been a tough pressure at the production line in the past and the quality control have failed in some cases. I can live with this since the products otherwise shines like diamonds :-) ___ 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 inexpensive carrying case
Here's an idea for an expensive ($7.95!) K2 carrying case: http://www.sciplus.com/singleItem.cfm/terms/14991 I purchased one, and it works. It has a non-removable interior padded divider in the middle, but it can be folded flat, and thus provides extra padding. When zipped shut, the K2 fits without any slop. My K2 is the QRP version, thus fairly lightweight. It might be a bit light-duty if using it for the K2/100. Terry Wilkinson W1BPJ ___ 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 -- loss of output power control
On Thu, Dec 11, 2008 at 6:59 AM, Don Wilhelm w3...@embarqmail.com wrote: Brian, You have some problem with the wattmeter in the KPA100 - T4, D16, D17, R26, R27, U5, U6 or on the VRFDET signal pathway back to the K2 control board. You seem to have a somewhat normal voltage variation at U5 pin 7, which (for the moment) says everything is working through U5, but check the U6 pin 6 output under the same conditions and also check for the same voltage at K2 control board P4 pin 10. I did. I think I said that in the original message (looking ...), yes, I did check and the output of U6 pin 6 is the signal VRFDET and tracks VFWD (output of U5b). It is properly present on header for the aux-I/O cable to the control board and I have verified the same voltages on pin 10 of the Aux-I/O connector on the control board. I did disconnect the Aux-I/O cable from the control board and I tested the base K2. Power output control of the K2 without the KPA100 connected is working is working properly. Since this happened only by removing and re-installing the KPA100, be suspicious of a solder joint that is not well soldered - those may work for a while and then when touched can fail. I did carefully remove the PA board from the heatsink and check all connections visually and specifically all of those between U5, U6, and the Aux-I/O connector. I even rang out the connections. That is all good. I have also verified the entire path from U6 pin 6 (KPA100) all the way to pin 2 on the microcontroller, U6, on the control board. Voltage is present there and it does follow power output. So VRFDET is reaching the control board. Just for grins, I looked at the values for VRFDET coming form the K2 RF board RF output detector. They are *much* higher than what I am getting from VRFDET coming from the KPA100. At full output I have something like 3.5V on VRFDET from the K2 RF board output but only about 0.3V on VRFDET coming from the KPA100. I am thinking maybe D16? What kind of voltage should I see at the cathode of D16? I see about 1.7V at full power output from the PA. 73 de Brian, WB6RQN 73, Don W3FPR Brian Lloyd wrote: Our K2 was working perfectly until I opened it up, tightened the power transistor mounting screws, realigned the receiver, and put it back together. Now power output no longer follows the power setting. When set to a power output less than 10W, I hear the bypass relay but I get the High Cur display (momentarily) and the display then shows a power output of 0.3W with an SWR of 3.0. Output power as measured with a W1 is 20W. If I advance the power control, as soon as I pass the 10W point the PA comes on and the power jumps to 150W output. Turning the power level control fully CCW (0.1W setting) produces 6W of output. Looking at pin 7 of U5 on the KPA100 I can see good analog voltage that varies with power. I can see the value of VFWD change when the range changes (SCALE changes) also. I can also see varying VFWD at pin 2 of U1 so this does not appear to be an analog problem. FWIW, voltages at pin 2 of U1 for various power outputs are: 6W -- 0.15V 20W -- 0.30V 150W -- 0.29V At pin 7 of U5 (U5b): 6W -- 0.15V 20W -- 0.30V 150W -- 0.77V On the t-r menu item I have 8r hold set. I do have output on VRFDET but the value only varies from about 0.3V-0.7V so that appears to be working also. I am planning to fly to Dominica on Friday and operate from there but I can't take the K2 unless I solve this problem. Suggestions? ___ 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] Earning Customer Loyalty
I had also to replace an encoder which was faulty at the outset, however, the dis-assembly of the front panel was very easy and straightforward and only took a few minutes. I don't understand the difficulty de Tom GM4FDM Jerry Flanders wrote: Much more to it than mere inconvenience. I spent hours on the job - diagnosis by disassembling the radio, swapping the encoders, reassembling the radio, verifying the problem followed the encoders, getting a replacement encoder from Elecraft, disassembling the radio, installing the replacement encoder, then reassembling the radio. Most of you guys who assembled the kit know how difficult front panel remove/install is. I feel that my problem could have been avoided if Elecraft had been testing each individual module before shipping them - mine was DOA, and was likely DOA before shipment. I suggested then that Elecraft should check each and every module before shipment - should be pretty easy to do there on the bench in a test device. I don't know if they are testing them now. Jerry W4UK At 04:57 AM 12/11/2008, David Ferrington, M0XDF wrote: This thread is only the second I've seen mentioning failed decoders, so 3 of you here I think and the previous mention, back in February I think was one - that's 4 out of at least 1933 units! Rather a low failure rate, although of course very inconvenient if it's you. 73 de M0XDF, K3 #174 -- Dear God, Did you mean for the giraffe to look like that or was it an accident? -Norma [Children's Letters to God, 1991] On 11 Dec 2008, at 09:48, Trond Stubberud wrote: I think many of us experienced failed encoders, mine failed the 1. Day of arrival. VFO A. But as always the customer service from Elecraft is excellent and a new encoder arrived after a few days. Most likely there have been a tough pressure at the production line in the past and the quality control have failed in some cases. I can live with this since the products otherwise shines like diamonds :-) ___ 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 --- avast! Antivirus: Inbound message clean. Virus Database (VPS): 081210-0, 10/12/2008 Tested on: 11/12/2008 18:12:44 avast! - copyright (c) 1988-2008 ALWIL Software. http://www.avast.com -- So I met the bloke who invented crosswords today. I can't remember his name, it's P something T something R. --- avast! Antivirus: Outbound message clean. Virus Database (VPS): 081210-0, 10/12/2008 Tested on: 11/12/2008 18:34:15 avast! - copyright (c) 1988-2008 ALWIL Software. http://www.avast.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
Re: [Elecraft] K3: Poor AM receive audio quality
Shane, you will probably find external speakers transform the quality of the K3. I am using a cheap pair of HiFi book shelf speakers that cost under 20 GBP and it sounds great on local AM broadcast stations using no RX EQ and 6 KHz IF filter. In side by side comparisons with a Perseus SDR and fairly cheap PC speakers on my PC, the K3 sounds much better, with the internal K3 speaker the opposite was the case. The speakers I am using are from a UK high street chain store, www.argos.co.uk and stock number 513/6113. You might want to try a pair of speakers, as the pseudo stereo effect of AFX is amazing. 73 Dave, G4AON K3/100 #80 - Relative to my 1983 Kenwood R-2000 (http://www.rigpix.com/kenwood/r2000.htm), my K3 sounds awful when listening to any AM broadcast stations. I have the 6KHz and 12KHz filters installed and despite widening the AM IF bandwidth to 10KHz and spending many hours fussing about with the RX EQ, I cannot make the K3 to sound even remotely enjoyable. Shane VK5ABQ ___ 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 -- loss of output power control
Brian, Yes, that is not enough voltage from D16. The K2 power control circuits think that there is not enough power output and ramps up the power in an effort to see more voltage on the VRFDET line. I would recommend that you 'bite the bullet' and remove the KPA100 board from the heat sink and check T4 carefully. Replace D16 and D17 both. They may have been damaged by a lightning surge, but they usually just short and fail to work at all - your failure is a bit different in that you do get some voltage (and that is why you should check T4 sand the other components in the wattmeter sensing area. If you do not care a lot about power accuracy at low power levels, you can use 1N4148 diodes in place of the 1N5711 type. The 1N4148s are a little more 'hardy'. 73, Don W3FPR Brian Lloyd wrote: On Thu, Dec 11, 2008 at 6:59 AM, Don Wilhelm w3...@embarqmail.com wrote: Brian, You have some problem with the wattmeter in the KPA100 - T4, D16, D17, R26, R27, U5, U6 or on the VRFDET signal pathway back to the K2 control board. You seem to have a somewhat normal voltage variation at U5 pin 7, which (for the moment) says everything is working through U5, but check the U6 pin 6 output under the same conditions and also check for the same voltage at K2 control board P4 pin 10. I did. I think I said that in the original message (looking ...), yes, I did check and the output of U6 pin 6 is the signal VRFDET and tracks VFWD (output of U5b). It is properly present on header for the aux-I/O cable to the control board and I have verified the same voltages on pin 10 of the Aux-I/O connector on the control board. I did disconnect the Aux-I/O cable from the control board and I tested the base K2. Power output control of the K2 without the KPA100 connected is working is working properly. Since this happened only by removing and re-installing the KPA100, be suspicious of a solder joint that is not well soldered - those may work for a while and then when touched can fail. I did carefully remove the PA board from the heatsink and check all connections visually and specifically all of those between U5, U6, and the Aux-I/O connector. I even rang out the connections. That is all good. I have also verified the entire path from U6 pin 6 (KPA100) all the way to pin 2 on the microcontroller, U6, on the control board. Voltage is present there and it does follow power output. So VRFDET is reaching the control board. Just for grins, I looked at the values for VRFDET coming form the K2 RF board RF output detector. They are *much* higher than what I am getting from VRFDET coming from the KPA100. At full output I have something like 3.5V on VRFDET from the K2 RF board output but only about 0.3V on VRFDET coming from the KPA100. I am thinking maybe D16? What kind of voltage should I see at the cathode of D16? I see about 1.7V at full power output from the PA. 73 de Brian, WB6RQN 73, Don W3FPR Brian Lloyd wrote: Our K2 was working perfectly until I opened it up, tightened the power transistor mounting screws, realigned the receiver, and put it back together. Now power output no longer follows the power setting. When set to a power output less than 10W, I hear the bypass relay but I get the High Cur display (momentarily) and the display then shows a power output of 0.3W with an SWR of 3.0. Output power as measured with a W1 is 20W. If I advance the power control, as soon as I pass the 10W point the PA comes on and the power jumps to 150W output. Turning the power level control fully CCW (0.1W setting) produces 6W of output. Looking at pin 7 of U5 on the KPA100 I can see good analog voltage that varies with power. I can see the value of VFWD change when the range changes (SCALE changes) also. I can also see varying VFWD at pin 2 of U1 so this does not appear to be an analog problem. FWIW, voltages at pin 2 of U1 for various power outputs are: 6W -- 0.15V 20W -- 0.30V 150W -- 0.29V At pin 7 of U5 (U5b): 6W -- 0.15V 20W -- 0.30V 150W -- 0.77V On the t-r menu item I have 8r hold set. I do have output on VRFDET but the value only varies from about 0.3V-0.7V so that appears to be working also. I am planning to fly to Dominica on Friday and operate from there but I can't take the K2 unless I solve this problem. Suggestions? ___ 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 No virus found in this incoming message. Checked by AVG - http://www.avg.com Version: 8.0.176 / Virus Database: 270.9.16/1843 - Release Date: 12/11/2008 8:36 AM ___ Elecraft mailing list
Re: [Elecraft] K2 -- loss of output power control
On Thu, Dec 11, 2008 at 10:47 AM, Don Wilhelm w3...@embarqmail.com wrote: Brian, Yes, that is not enough voltage from D16. The K2 power control circuits think that there is not enough power output and ramps up the power in an effort to see more voltage on the VRFDET line. That is what I am thinking also. I would recommend that you 'bite the bullet' and remove the KPA100 board from the heat sink and check T4 carefully. I did that but now I am going to do it again. Grr. Replace D16 and D17 both. They may have been damaged by a lightning surge, but they usually just short and fail to work at all - your failure is a bit different in that you do get some voltage (and that is why you should check T4 sand the other components in the wattmeter sensing area. I have checked T4 and it shows proper continuity to the board so I believe that the soldering is good. (The solder joints look good under a magnifier too.) D16 and D17 both show the same forward and reverse resistance once they conduct which makes them suspect to me. They do show open at low voltage so they are not shorted. Seems they are the most likely culprits. If you do not care a lot about power accuracy at low power levels, you can use 1N4148 diodes in place of the 1N5711 type. The 1N4148s are a little more 'hardy'. But they are standard silicon small signal diodes. They would not work well at low power levels due to their greater forward drop. Can I sub in some other small-signal schottky diode? If I can't find a 1N5711? 73, Don W3FPR 73 de Brian, WB6RQN ___ 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 -- loss of output power control
Brian, The real mystery is that this initially occurred when you removed the KPA100 to tighten the PA transistor screws. I really would not think that would trigger a component failure, so I encourage you strongly to look for a bad solder connection. Be certain the wire from the center of the SO239 to hole 6 of the T4 connections is in place and well soldered - that one is easily overlooked. Do the rest of the T4 connections look 'like mountains, but not volcanoes'? Re-strip if they have that volcano appearance. You might also check R28 and R29 too. A bad capacitor is a difficult thing to find - fortunately they are not encountered often, but check anyway. Measure the resistance from the wiper of R26 to ground - it should be close to 43k. A possibility is that R26 itself was ready to fail - it perhaps worked until it was touched. You could possibly use some other diode at D16 and D17, but I don't know the response characteristics vs. frequency. The 1N4148s will work fine down to about the 2 watt level, I don't know how low you wish to have accurate power control and indication. Elecraft will likely send you 1N5711s if you can't find them locally. 73, Don W3FPR ___ 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] K3: Poor AM receive audio quality
You are right, even with an external speaker. I would not say it is bad, but my THS480 is much better, as is my SDR IQ. Like the difference between a cassette tape and a CD say. I think the problem is the low frequency response - it could be something to do with the DSP filtering. The good thing is, it can be changed. For comms, you do not need full frequency response. The K3 is designed primerily for communications. Mike -- View this message in context: http://n2.nabble.com/K3%3A-Poor-AM-receive-audio-quality-tp1642606p1644878.html Sent from the Elecraft mailing list archive at Nabble.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
Re: [Elecraft] KDVR3 Firmware request
Dave, your points are very well taken! I agree that most of these matters need to be dealt with in the contest/operating software. However I still think that a firmware choice to prevent all but the most intentional erasure of a message or recording with the KDVR3 would be a good thing. It is like a computer file, once it is gone it is gone forever unless there is a backup. If you spend the time to record a good DVR on the KDVR3 I think having a choice so as to not lose it very easily would add a lot as a reason to have a KDVR3. I think the same would hold true of a nice on the air recording you made with the KDVR3. I don't think this is not as serious as you should be able to play it on the line out and save it on the computer and make backups and have it for the rest of your life or send it to someone else. Of course if you don't back it up you could lose it. Another good use for the KDVR3 would be on a one or two person DX-pedition, maybe larger. They can have the KDVR3 installed in the K3 and do their messages. With this firmware change they would not have to be concerned about losing them. Often one or more of the team members are not that familiar with the radio and could accidentally erase a message. Generally you just have a laptop on a DX-pedition so using the KDVR3 would be a great step forward IMHO. My experience from being on several DX-peditions is that a laptop lacks when it comes to using a contesting program with one or no com ports, etc. Personally I can not get very enthused about plugging my microphone into a computer and then running wires here and there. IMHO it just adds to the chance of cable problems, etc. but that is personal preference. This is even more true on a DX-Pedition, forget one cable and you are in major trouble in the places I have been!!! So we agree a lot of this should be handled by contesting software but I think the KDVR3 installed in a K3 should be made as useful as reasonable possible through the firmware or why sell it? I realize different K3 users have different likes for a KDVR3 but I think they would be interested in protecting their effort in creating a good DVR message so it was not easily erased just like your computer operating system gives you a second chance before you delete something. I think the beauty of the K3 firmware in that within reason things can be done to enhance the use of the K3 with the KDVR3. It is not unusual for me to spend 1 hour getting a near perfect DVR message. I would like to have a way to protect that near perfect DVR. However I do agree with Dave and never intended in trying to make it a SO2R DVR radio even with two K3's. This is beyond what needs to be done in the K3 firmware and is not fair to the broad spectrum of K3 users most of which have no interest on SO2R. For that matter I don't do SO2R but some of the people who operate here do. There is a downside to getting contesting software to do what you want it to do and that is you have to convince the authors to do it for the K3. Sometimes that is not as easy to do as it might seem. Ed W0SD Dave Hachadorian wrote: Before getting too wrapped up in so2r/contesting dvr/mic switching within the K3, keep in mind that Writelog, and N1MM, and probably other Windows-based contesting software, already have elegant solutions to that problem. You connect your mic to MONO MIC IN of the sound card, and STEREO LINE OUT from the sound card to the radios' LINE IN, with left channel going to the left radio, and right channel going to the right radio. Mic is muted when messages are playing. Messages can be re-recorded on the fly. Different messages can be stored in the voice of the different operators. Different messages can be used for SP vs. CQ mode. With this setup, you don't need to connect a mic directly to the K3. Just some thoughts to keep the issue in perspective. Dave Hachadorian, K6LL Yuma, AZ - Original Message - From: Ed Gray W0SD w...@triotel.net To: elecraft@mailman.qth.net Sent: Thursday, December 11, 2008 5:49 PM Subject: [Elecraft] KDVR3 Firmware request First a little back ground as Wayne probably has not read the line-In + Mic discussion. When one uses the computer for a DVR for contesting an easy way to do it is to take advantage of the Line Input but given one also wants to use the mic for operating then the MIC is hot during the playing of the DVR. For SO2R there are added issues of switching the DVR from the computer and the mic between the two radios. Lyle KK7P pointed out that an external program could easily set the active Tx audio path from MIC to LINE IN, send the audio, then switch the Tx audio path back to MIC. The problem is to get your program author to make those changes for the K3 but definitely an option! I am thinking the KDVR3 is a better way to go to cure the hot mic and associated sound card problems. It also should get rid of the black box
RE: [Elecraft] Who is using CW to PSK31 with K3?
Oops! I used it. :-) 73, Bill K9YEQ K2 #35; KX1 #35; K3 #1744; mini mods -Original Message- From: elecraft-boun...@mailman.qth.net [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Vic K2VCO Sent: Thursday, December 11, 2008 10:45 AM To: aa...@aol.com Cc: elecraft@mailman.qth.net Subject: Re: [Elecraft] Who is using CW to PSK31 with K3? aa...@aol.com wrote: I have a question or two for those using CW to PSK31. Please reply directly off board. I know you asked for a direct reply, but the answer is that nobody is using it because it is not fully implemented yet. It is one of the top items on Elecraft's to-do list. -- 73, Vic, K2VCO Fresno CA http://www.qsl.net/k2vco ___ 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] KDVR3 Firmware request
Another reason for this request is if I understand what I read that doing over the air recording would erase an existing message if the buffer is full. The 90-second record-off-the-air DVR loop buffer, and the eight DVR Tx message memory buffers, are completely separate. You can't erase a Tx Buffer message with an Rx recording, and vice versa. At least, not with the current firmware :-) 73, Lyle KK7P ___ 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] KDVR3 Firmware request
Thanks Lyle! For me that is great news! I have another question on the KDVR3. If I am using PTT rather than VOX can I play a DVR message by tapping for example M1. Let me explain more. A long term problem with VHF contesting and using DVR on two meters and above is hot switching the amplifier T/R relay at high power, ie 8877 on two meters. By and large people use PTT and even then in some cases a sequencer to be sure the amplifier T/R relay has to be closed or at least gets a head start at two meters and up. If you use DVR on VOX you soon burn up an amplifier T/R relay at Two meters and up unless it is an expensive vaccum T/R and I have seen them go! With the KDVR3 I am wondering when using the K3 with a XVERTER if one can key it and the amplifier it is driving with PTT and then play the KDVR3 message tapping the M1, etc. key. I am assuming if the VOX is not on the KDVR3 will not key up the radio if you accidently hit M1, etc. However I am wondering since in USB or LSB you can send CW even though the radio has the VOX turned off. Put another way you can not transmit with the mic until you engage PTT but if you hit the key it still works jsut like VOX. Maybe there is a setting where that can be defeated but if so I have missed it? Ed W0SD Lyle Johnson wrote: Another reason for this request is if I understand what I read that doing over the air recording would erase an existing message if the buffer is full. The 90-second record-off-the-air DVR loop buffer, and the eight DVR Tx message memory buffers, are completely separate. You can't erase a Tx Buffer message with an Rx recording, and vice versa. At least, not with the current firmware :-) 73, Lyle KK7P ___ 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 No virus found in this incoming message. Checked by AVG - http://www.avg.com Version: 8.0.176 / Virus Database: 270.9.16/1843 - Release Date: 12/11/2008 8:36 AM ___ 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] Earning Customer Loyalty
Just to provide a bit of perspective, I've also had problems with the encoder...on my Yaesu FT-857D. It's the lower-lefthand knob that does double duty for menu selections and also has a push on-off selector function. When I ordered a replacement from Yaesu, the tech told me that this encoder, and it's being sensitive to inadvertent bumps, is a common failure item on this radio. Since they were fairly cheap, I decided to buy several to allow for future accidents as well. It was a hassle to replace, but I did it myself instead of sending it in for warranty service. Elecraft is not the only company that might have occasional issues with encoders. Cheers, Dave, K7DAA On Dec 11, 2008, at 10:34 AM, Tom Wylie wrote: I had also to replace an encoder which was faulty at the outset, however, the dis-assembly of the front panel was very easy and straightforward and only took a few minutes. I don't understand the difficulty de Tom GM4FDM Jerry Flanders wrote: Much more to it than mere inconvenience. I spent hours on the job - diagnosis by disassembling the radio, swapping the encoders, reassembling the radio, verifying the problem followed the encoders, getting a replacement encoder from Elecraft, disassembling the radio, installing the replacement encoder, then reassembling the radio. Most of you guys who assembled the kit know how difficult front panel remove/install is. I feel that my problem could have been avoided if Elecraft had been testing each individual module before shipping them - mine was DOA, and was likely DOA before shipment. I suggested then that Elecraft should check each and every module before shipment - should be pretty easy to do there on the bench in a test device. I don't know if they are testing them now. Jerry W4UK At 04:57 AM 12/11/2008, David Ferrington, M0XDF wrote: This thread is only the second I've seen mentioning failed decoders, so 3 of you here I think and the previous mention, back in February I think was one - that's 4 out of at least 1933 units! Rather a low failure rate, although of course very inconvenient if it's you. 73 de M0XDF, K3 #174 -- Dear God, Did you mean for the giraffe to look like that or was it an accident? -Norma [Children's Letters to God, 1991] On 11 Dec 2008, at 09:48, Trond Stubberud wrote: I think many of us experienced failed encoders, mine failed the 1. Day of arrival. VFO A. But as always the customer service from Elecraft is excellent and a new encoder arrived after a few days. Most likely there have been a tough pressure at the production line in the past and the quality control have failed in some cases. I can live with this since the products otherwise shines like diamonds :-) ___ 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 --- avast! Antivirus: Inbound message clean. Virus Database (VPS): 081210-0, 10/12/2008 Tested on: 11/12/2008 18:12:44 avast! - copyright (c) 1988-2008 ALWIL Software. http://www.avast.com -- So I met the bloke who invented crosswords today. I can't remember his name, it's P something T something R. --- avast! Antivirus: Outbound message clean. Virus Database (VPS): 081210-0, 10/12/2008 Tested on: 11/12/2008 18:34:15 avast! - copyright (c) 1988-2008 ALWIL Software. http://www.avast.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 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] K3 wattmeter
My K3 wattmeter readings have never matched those on my inline WX0B Power Master. it has always been high by 5-8 watts. Any way to have the K3 output read more accurately? 73 de todd WB2ZAB ___ 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] K3 and MixW PSK31
It is OK to make a silly mistake. Just not good if it is too often.. If one never makes a mistake then one is never doing anything. Worse is not admitting to a mistake. Enjoy the belly laugh and keep enjoying the wonderful radio. Aloha, John KH7T Gary Gregory wrote: snip in the end downright belly laughs. I have spent the last few hours hiding my face in the corner and remaining very, very quiet. So again, thank you for the support and advice folks, aside from my embarrassment, I am a happy camper yet again. Best wishes for Xmas, Gary ___ 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] K3 wattmeter
Hi Todd, Yes, wattmeter calibration is described in the Calibration Procedures section of the K3 Owner's Manual. David, W4SMT --- On Thu, 12/11/08, Todd Ruby rubyw...@verizon.net wrote: From: Todd Ruby rubyw...@verizon.net Subject: [Elecraft] K3 wattmeter To: elecraft@mailman.qth.net Date: Thursday, December 11, 2008, 4:17 PM My K3 wattmeter readings have never matched those on my inline WX0B Power Master. it has always been high by 5-8 watts. Any way to have the K3 output read more accurately? 73 de todd WB2ZAB ___ 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] test
turned on post ack. let's see if the list acknowledges this message... Save $15 on Flowers and Gifts from FTD! Shop now at http://offers.netzero.net/TGL1241/?u=http://www.ftd.com/17007 ___ 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] test
This one made it through. Let's try my for sale message again... - Original Message - From: Thomas M. Beaudry k...@arrl.net To: Elecraft list elecraft@mailman.qth.net Sent: Thursday, December 11, 2008 4:58 PM Subject: [Elecraft] test turned on post ack. let's see if the list acknowledges this message... Save $15 on Flowers and Gifts from FTD! Shop now at http://offers.netzero.net/TGL1241/?u=http://www.ftd.com/17007 ___ 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
Re: [Elecraft] Earning Customer Loyalty
We test -all- of the various modules in the K3 prior to shipment (both kits and built K3s). The VFO A/B encoder issue cropped up recently and was a problem at the Bourns factory that they have now corrected. (Fortunately the problem only showed up on a very small percentage of encoders.) But in my opinion, for an expensive encoder like this one, we never should have seen any failures, no matter how few. We pay a premium for these encoders. We always 100% tested them here, but obviously a few slipped through, by passing here and then failing shortly afterwards. In general the encoder, if it is one of the small percentage that is going to fail, fails in the first hour or so of use. Once we understood what was happening (after beating up Bourns asking for an answer for a number of weeks..) we built an encoder burn in fixture where we run 100% of the encoders for an extended time before testing them. That in turn catches the offenders. In general, if an encoder runs for an hour or two, it doesn't fail. Bourns has also made changes to their automated assembly process to eliminate this as a possible issue. We want ZERO failures of encoders. I'm sure we'll see a few more for a little while, but I don't think many are getting by us now. :-) 73, Eric WA6HHQ Tom Wylie wrote: I had also to replace an encoder which was faulty at the outset, however, the dis-assembly of the front panel was very easy and straightforward and only took a few minutes. I don't understand the difficulty de Tom GM4FDM ___ 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] For sale: K2 #3422
Haven't seen so trying again... Due to a critical medical/financial crisis, I find I must sell my precious K2 to come up with sufficient funds. I WILL be building another when I am in better health and the finances have straightened themselves out. The K2 in question is SN 3422 with the following options: K160RX KNB2 KIO2 KBT2 It has the temperature compensation upgrade installed. Asking price is $600 including shipping cost. Payment to be made via PayPal. 73, Thomas M. Beaudry K8LA Security Camera for your small business. Click Now! http://thirdpartyoffers.netzero.net/TGL2241/fc/PnY6rx8qFgofBH6fTFutWwfLGxtZ4vmjjeZltpYsuMSa1dddJDW0K/ ___ 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
FW: [Elecraft] K3
It occurred to me that others might benefit from this thread, especially Lee's pictures. 73, John, W2GW -Original Message- From: Lee (WW2DX) [mailto:l...@ww2dx.com] Sent: Thursday, December 11, 2008 4:41 PM To: John E. Reiser Subject: Re: [Elecraft] K3 Thanks John, I really appreciate your feedback! I am looking forward to it. I have xmas week off so I will be building then. Here are the pix I took of the initial build, I will be taking more for the KRX3. Thanks again! 73 Lee WW2DX http://picasaweb.google.com/ljimber/ElecraftK3Arrives# On Dec 11, 2008, at 4:23 PM, John E. Reiser wrote: Hi Lee, You are wise to do the installations at the same time in my opinion. It saves taking everything apart a second time. I didn't run into any real problems. When I got my Katiegram I downloaded and read the installation instructions to familiarize myself. Then, after all the components had arrived, I resolved to take my time, even if it took all day (I'm retired). I followed the manuals to the letter and didn't take any shortcuts. And, I was scrupulous about my ESD precautions: I used grounded wrist strap and work mat. I followed the steps given in the KRX3 manual up to just before where they call for reinstalling the main DSP board to the front panel assembly. Then I digressed to install the KDVR3 board. The little KDVR3 board just plugs into the main DSP board and you secure it to a standoff with a screw. As for the K3AFMDKT, I only did the first part: removing a choke on the top side of the RF board and replacing it with another on the bottom from the mod kit. Actually, in the sequence of things, I did that just after the top and front-bottom covers were off. I chose to remove the old choke entirely using solder-wick from the bottom. Then I formed and cut the leads of the new choke and soldered it from the bottom to the original pads and holes. The reason I didn't do the second part of the mod is that I have been using the LINE IN for digital modes without any problem for the past nine months. It works well as-is with my Lenovo notebook computer, and I didn't want to mess that up. I did drop a lock washer into the radio in the process of putting it back together. As a result, I had to take the right side panel off again to get the washer out. Along the way, I dropped in other washers and nuts, but was able to get them out by turning the radio upside down and shaking. And when everything was back together and I did the CONFIG: VCO CAL step, I got a cryptic error message. Then I remembered that there was no DSP 2 firmware installed yet. (Maybe the instructions should remind about this.) Once I downloaded the latest beta firmware, everything else went smoothly. I came away from the experience with a profound admiration for the K3's mechanical design. As I said, what a radio! 73, John, W2GW -Original Message- From: Lee (WW2DX) [mailto:l...@ww2dx.com] Sent: Thursday, December 11, 2008 1:55 PM To: John E. Reiser Subject: Re: [Elecraft] K3 Hi John, Thanks for the post. I just finished finalizing my order with Katie yesterday. I have K3 # 464 and also waited for the 2nd rxer to be shipped with the KDVR3. I also had her include the K3AFMDKT and the RXA Mod as well. How did it all go? Any gotcha's you can give me a heads up on? 73 de Lee WW2DX.com On Dec 11, 2008, at 11:59 AM, John E. Reiser wrote: Pardon my gushing. I just installed the KRX3, the KDVR3, and the K3AFMDKT in my K3 #384, along with the MCU 2.72 / DSP 1.98 beta firmware. What a great radio! It just gets better and better! Thanks Wayne, Eric and Lyle and all your colleagues at Elecraft. ___ 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
Re: [Elecraft] K3 mojo never ends
I never feel this so strong but just now after QSO with JA7NI on 160m using only 12W out from my K3/10 and 16m vertical with poor radial system I have some idea what is going on :-) 73! Lexa, OK1DST K1DWZ napsal(a): I worked TO5RZ (St Bart.)with my K3 on 20 mtrs SSB with 10 watts to a G5RV. I can't believe I got through the pileup but I guess the mojo adds some power to my signal. Ken K1DWZ K3/10 #167 ___ 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] K3 Beta firmware rev. 2.73: Miscellaneous improvements
K3 beta-test firmware revision 2.73 (with DSP rev 1.98) is now available. See release notes below. Please send any problem reports to k3supp...@elecraft.com. For instructions on how to load beta firmware, please see: http://www.elecraft.com/K3/k3_software.htm 73, Wayne N6KR * * * MCU 2.73 / DSP 1.98, 12-9-2008 * RX EQ is now applied to both main and sub receivers. * TUNE NO LONGER CANCELS AUTO-NOTCH. * CONFIG:ADC REF MENU ENTRY: This allows the operator to calibrate the voltage reference used by the K3 to measure and display certain values, such as the rig’s supply voltage. ADC REF calibration is optional but recommended. First, disconnect anything attached to the ACC jack. Next, locate the CONFIG:ADC REF menu entry. It will initially show 5.00 volts as the reference voltage. Using a DMM set to DC volts, measure the actual voltage at pin 2 of the ACC jack. This must be done while the ADC REF parameter is being displayed. (The (-) probe of the DMM should go to the K3’s chassis ground, e.g. the GROUND lug.) Finally, use VFO A to set the ADC REF menu parameter to what you measure at pin 2. For software developers: * “CP” COMMAND ADDED (speech compression setting). * Auto-report (AI2 mode) added for the “MG” command (mic gain). --- 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
RE: [Elecraft] Muting mic when voice keying (was K3 Monitor)
This would solve N1MM Logger's inability to mute the K3 mic while voice keying because the K3 doesn't offer separate level controls for mic and line (like the Orion does). All N1MM logger needs to do is read the mic gain (MG;), store the value and issue an MG000; command to mute the mic. When the message is over, issue MG##; with the stored value. It's not brain surgery. However, routing the microphone into the soundcard and the soundcard output to the K3 mic input is far preferable as it allows N1MM Logger (or WriteLog, WinTest, etc.) to handle muting of the microphone while the wave file is running automatically without transceiver commands or contention over line vs. mic priority. It's not even difficult to configure mic PTT or footswitch to serve as a dump switch which cancels the wave file in midstream and reconnects the microphone. 73, ... Joe, W4TV -Original Message- From: elecraft-boun...@mailman.qth.net [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Barry N1EU Sent: Thursday, December 11, 2008 11:27 AM To: elecraft@mailman.qth.net Subject: [Elecraft] Muting mic when voice keying (was K3 Monitor) Don Wilhelm-4 wrote: I do not believe that muting the mic when PTT is asserted from the RS-232 input is a good idea. Many logging programs use the RS-232 signals to activate transmit. Actually, I think that would be an excellent option: mute the mic input when PTT is asserted via the CAT RS-232 RTS/DTR line. In a typical contest setup, your computer logger/dvk'er will feed audio into K3 line in and assert PTT via RS-232 CAT port. When you use your mic, you can use K3 PTT input. This would solve N1MM Logger's inability to mute the K3 mic while voice keying because the K3 doesn't offer separate level controls for mic and line (like the Orion does). 73, Barry N1EU -- View this message in context: http://n2.nabble.com/K3-Monitor-tp1641973p1643966.html Sent from the Elecraft mailing list archive at Nabble.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 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] Filters
Hi - I'm new to the list and I want to order all the filters I might need so I can install them at the same time and not have to open the rig each time. I operate mainly CW, but also SSB and RTTY. I am primarily a DXer but a contester secondarily. My main bands are the two extremes: 160 and 6. What are some recommendations for filters for the main and sub? I want to opt for replacing the 5-pole 2.7 with the 8-pole 2.8. I want the 8-pole filters but it looks like little difference between the 250 and 400. Also, is there much difference between the 1.8 and 2.1? Definitely want a 2.8 for both main and sub as well as the 1.0 for the sub when searching on split. Anyone have a suggestion for the 6.0 for 6M when activity is low? What should I choose for 5 in the main and 5 in the sub? Should they be all the same? I believe all SSB goes through the 2.8 on transmit - is that the same for CW? Anyone responses will be appreciated. Thanks, Mike, W4UM Florida Contest Group South Florida DX Association Mid-Florida DX Association ___ 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] K3: Passband tuning questions
I don't understand some functionality of the K3's passband tuning. If I select AM, and activate NORM then Fc=1.50KHz(an asterisk is alongside this figure on the display). Since the selected roofing filter defaults to 6KHz I figure the displayed value of Fc is the centre frequency of the audio bandwidth, not the RF bandwidth. So the bandwidth control refers to RF bandwidth and the Fc control refers to audio bandwidth? Next if I widen the bandwidth to 10.00KHz (allowing the K3 smarts to select the 12KHz roofing filter automatically) and then switch to HI/LO CUT, the LO figure displayed is 0.00 and the HI figure is 4.20 (again, audio frequency figures I assume?), doesn't this mean the current RF bandwidth is 8.4KHz? What happened to 10KHz? Shouldn't LO=0 (or more like 0.25 due to the DSP's alleged audio attenuation) and HI=5.0? Thanks. I'm going through a whinge period at the moment - bah humbug! - Shane -- View this message in context: http://n2.nabble.com/K3%3A-Passband-tuning-questions-tp1646057p1646057.html Sent from the Elecraft mailing list archive at Nabble.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] Firmware upload to K3 using Microham MK2
It has been a while since I updated using my own laptop. Can I use the Microham MK2 interface with the No radio mode, and router query disabled, and 38400bps settings? I just loaded the new K3 Utility so the utility software is current. The last time I updated from this laptop, the FP flash memory did not exist. I thought there was initially an issue with using the MK2 to update but that may have been resolved in the intervening timeframe. John K8WDN K3 #157 ___ 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] Firmware upload to K3 using Microham MK2
Possibly. Give it a try. But if you have difficulty with the firmware load, be prepared to cable the K3 directly to the PC. Dick, K6KR From: elecraft-boun...@mailman.qth.net [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of John Gaynard Sent: Thursday, December 11, 2008 6:06 PM To: elecraft@mailman.qth.net Subject: [Elecraft] Firmware upload to K3 using Microham MK2 It has been a while since I updated using my own laptop. Can I use the Microham MK2 interface with the No radio mode, and router query disabled, and 38400bps settings? I just loaded the new K3 Utility so the utility software is current. The last time I updated from this laptop, the FP flash memory did not exist. I thought there was initially an issue with using the MK2 to update but that may have been resolved in the intervening timeframe. John K8WDN K3 #157 ___ 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] Filters
Mike, the January issue of QST has an extensive and thorough review of the K3 and the filters are thoroughly discussed. You'll likely find it informative. 73! Ken Kopp - K0PP elecraftcov...@rfwave.net ___ 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] OT: A suprising local hand-tool source
I was following Rose around the local WalMart store today and noticed a display of several sizes of diagonal and long nose pliers, two different flush-cutters and other neat tools suitable for electronic kit construction. I can't vouch for their quality, and the handles were shades of pink and blue, but .. (;-) They were displayed with products intended for bead work. Ken Kopp - K0PP elecraftcov...@rfwave.net ___ 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] For sale: K2 #3422
The radio has been sold. 73, Thomas M. Beaudry K8LA Click for FHA loan, $0 lender fees, low rates approvals nationwide http://thirdpartyoffers.netzero.net/TGL2241/fc/PnY6rx8araSKXPRrLPAIgWyhTJJFzpX4UfHtEvr5CxXWA3D9WnaWO/ ___ 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] Re: [fpqrp] For sale: K2 #3422
The radio has been sold. 73, Thomas M. Beaudry K8LA Click for FHA loan, $0 lender fees, low rates approvals nationwide http://thirdpartyoffers.netzero.net/TGL2241/fc/PnY6rx8arZqa43SiKRMtbYBkfR4sOyNbWPM05AKCZXj7ob3lbkXj7/ ___ 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] easy source of static dissipating work mat?
My new K3 is on it's way. I have anti-static material that my motherboard came in but that's not enough to work on be static free. Where can I easily quickly get an anti-static mat and grounded wrist strap? Thanks1 Gary KA1J ___ 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] Transport Case for K3?
I'm looking for recommendations for a small padded case for a K3, which could in turn be placed into checked luggage. I'd like something not much larger than the radio itself, with space for the radio alone. What have others found that will protect a K3 during transportation? 73, Jeff Maass K8ND ___ 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] easy source of static dissipating work mat?
Radio Shack. Dick, K6KR -Original Message- From: elecraft-boun...@mailman.qth.net [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Gary Smith Sent: Thursday, December 11, 2008 9:01 PM To: elecraft@mailman.qth.net Subject: [Elecraft] easy source of static dissipating work mat? My new K3 is on it's way. I have anti-static material that my motherboard came in but that's not enough to work on be static free. Where can I easily quickly get an anti-static mat and grounded wrist strap? Thanks1 Gary KA1J ___ 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
RE: [Elecraft] easy source of static dissipating work mat?
Beware that the Radio Shack 276-2370 portable ESD mat does not properly bleed off static charges. Appended below is a message I sent on this subject back in February. Al N1AL On Thu, 2008-12-11 at 21:04, Dick Dievendorff wrote: Radio Shack. Dick, K6KR -Original Message- From: elecraft-boun...@mailman.qth.net [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Gary Smith Sent: Thursday, December 11, 2008 9:01 PM To: elecraft@mailman.qth.net Subject: [Elecraft] easy source of static dissipating work mat? My new K3 is on it's way. I have anti-static material that my motherboard came in but that's not enough to work on be static free. Where can I easily quickly get an anti-static mat and grounded wrist strap? Thanks1 Gary KA1J = -Forwarded Message- From: Alan Bloom n...@cds1.net To: elecraft@mailman.qth.net Subject: [Elecraft] Radio Shack ESD mat doesn't meet spec Date: Wed, 27 Feb 2008 09:51:25 -0800 Well, I've convinced myself that the Radio Shack portable ESD mat, P/N 276-2370 doesn't work properly. The ESD Association http://www.esda.org has promulgated an industry-standard test for ESD mats, ESD S4.1. It is the standard specified by most commercial mats. I decided not to spring for the $70 to buy a copy of the standard, but other information I found on the web describes the test in general terms. It uses two circular electrodes, each weighted with 5 pounds, spaced 10 inches apart on the mat. The Point to Point Resistance is specified to be: At 40-60% RH: 10^6 - 10^7 ohms At 20-40% RH: 10^7 - 10^8 ohms At 10-20% RH: 10^8 - 10^9 ohms I don't know what the RH here in Santa Rosa was yesterday when I did the test, but I don't think it was very low since it has been raining recently and the ground is still damp. For sure the resistance shouldn't be below 10^9 ohms (1 gigohm) and probably more like 10^8 or 10^7 (100 or 10 megohms). I measured 2.5 x 10^10 ohms (25 gigohms), which puts the Radio Shack mat way out of spec. Test procedure: I didn't find a specification on the electrode size, but in the photo of a popular tester they look to be maybe 3 or 4 inches in diameter. For my test, the electrodes were two saucepans, each about 7 inches in diameter and weighted with 5 pounds. They were spaced 10 inches apart on the mat (3 inches edge-to-edge). I connected a 0.1 uF film capacitor between the two pans and charged it to 15V with a power supply. I set my ancient Simpson analog volt-ohm meter to 60 uA full scale. If I touch the leads across the capacitor immediately after charging, the needle momentarily jumps to about 6 uA (1/10 full scale) as the capacitor discharges through the meter. If I wait half an hour (1800 seconds) for the capacitor to partially discharge through the mat resistance, the needle jumps to about 3 uA. An R-C network discharges to 3/6 of original voltage in about 0.7 time constant. So the time constant must be 1800/0.7 = 2571 seconds. That implies the mat resistance is 2571 sec / 0.1 uF ~= 2.5 x 10^10 ohms. Al N1AL ___ 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] easy source of static dissipating work mat?
I didn't find a specification on the electrode size, but in the photo of a popular tester they look to be maybe 3 or 4 inches in diameter. For my test, the electrodes were two saucepans, each about 7 inches in diameter and weighted with 5 pounds When measuring the resistance of a two-dimensional conductor (like a mat), the resistance can be measured with point contacts, such as ordinary test meter probes. One of the interesting properties of two-dimensional conductors is that the measured resistance is independent of the spacing between the probes. In other words, one will get the same measurement on an ohmmeter if the probes are one centimeter apart as if they are one meter apart, provided the mat is larger than the probe spacing. This result may seem counter-intuitive, but it makes sense if you think about the lines of electic current that flow between the probes. Widely spaced probes have more area for the current to flow into, thus compensating for the fact that the probes are far apart. Thus the resistance is an intrinsic property of the conductor and not of the geometry of the measuring setup. Interesting, no? 73, Jim W8ZR ___ 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] Transport Case for K3?
I used a large food container from the supermarket. I jammed blocks into the front corners to keep the tuning knob away from the box lest it got a knock. Clip-on top made the whole thing very cheap, light weight and robust. Put that in regular travel bag with any padding you like, eg clothes or bubble wrap. David G3UNA I'm looking for recommendations for a small padded case for a K3, which could in turn be placed into checked luggage. I'd like something not much larger than the radio itself, with space for the radio alone. What have others found that will protect a K3 during transportation? 73, Jeff Maass K8ND ___ 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] Re: Travelling case for K3
I'm looking for recommendations for a small padded case for a K3, which could in turn be placed into checked luggage. Rose Kopp makes a nice padded case for the radio, but I'm not sure I'd want to put it inside checked luggage unless it was something like a Pelican with lots of foam all around.. Being a bit of a pessimist, and having seen the way airline baggage handlers treat my luggage, I recently traveled with a K3 with Samlex 1223 p/s and a laptop with it's p/s in a Pelican 1510, made to airline carry-on maximum dimensions. The K3 rode 'side-saddle', with the rubber feet on the 'back' of the case (knobs on the right). I had to remove the handle, leaving room for 1/8 of foam between the K3 and the 'front' of the case. Lots of room for foam to protect the knobs, and lots of room for the p/s on the 'left' of the case, separated from the K3 by more foam. This allowed the back of the K3 to rest on the foam when the Pelican was in the 'wheeled' position. The entire combination is heavy enough that I don't like to carry it from one end of DFW to the other (been there, done that). The laptop was placed on top of the K3, with more foam between. I felt that the K3 was reasonably well protected in this arrangement. The case fits perfectly in an overhead bin. The Pelican 1520 might be better for the radio p/s, but might not hold the laptop, and the dimensions could be challenged by an over-zealous airline employee. I would not trust the K3 to checked baggage without 2 (or more) of foam on all sides, this in a hard-sided case. VE7XF ___ 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 HELP ! error in CAL FCTR
Sorry to bother you all again. In CAL FCTR the counter should show 12090 ± 30 kHz. My K2 flashes between 00434 and 00436 kHz. I know, I have a problem with probe or PLL ref. osc. Any suggestions how to attack this problem will be appreciated Allan, OZ8A ___ 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] easy source of static dissipating work mat?
Dr. James C. Garland wrote: One of the interesting properties of two-dimensional conductors is that the measured resistance is independent of the spacing between the probes. In other words, one will get the same measurement on an ohmmeter if the probes are one centimeter apart as if they are one meter apart, provided the mat is larger than the probe spacing. This result may seem counter-intuitive, but it makes sense if you think about the lines of electic current that flow between the probes. Can't resist: http://xkcd.com/356/ Jon LA4RT ___ 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
