Re: [Elecraft] pulsing hash
Dick, This could be the KIO2 cable inside the K2, running from the serial connector to the control board. If it sags down, this will cause that kind of hash because it is too close to the receiver circuitry. Keep this cable as close to the topcover as you can. 73 Arie PA3A -Oorspronkelijk bericht- Van: elecraft-boun...@mailman.qth.net [mailto:elecraft-boun...@mailman.qth.net] Namens richard gilley Verzonden: donderdag 24 september 2009 2:52 Aan: elecraft@mailman.qth.net Onderwerp: [Elecraft] pulsing hash When running KComm, on the K2 as a logging program, I hear a pulsing hash, a varying amplitude hash with a peak rate of a few seconds. More prevalent on 40 meters, reducing a bit on 20 meters. When I disconnect all is OK. The hash is not that disturbing but if you tend to pay attention it could be bothersome. Any ideas? Thank you for your attention. Best regards Dick AD1G 73 __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] New Elecraft Pricing
The new Elecraft pricing has just gone into effect. Its up and live on the order page. ~BTH __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] K3 Check Your Buttons
A quick look at the circuit diagram shows that buttons are taken from a potential divider to CD74HC4051M inputs. These switches (unless I've misread the diagram) will therefore take the input current of the multiplexer which is typically 1uA. I don't know the spec for the Elecraft switch but a similar one requires a minimum current of 10uA. This should be checked more rigorously, but it might indicate a potential problem. David G3UNA Subject: Re: [Elecraft] K3 Check Your Buttons Paul, I am very surprised that this has not come up before! My K3 is #570 and it has had 4 front panel boards (a couple for what I called flaky or just bad switches and the rest for other reasons) and the same problem you describe is still there. The latest one is the best, but I still get some strange things happening - mostly with the BAND and MODE switches, but it has occurred occasionally with other switches, and it is not very reproducible - it can be very intermittent, or it can happen fairly often. When the K3 went back to Elecraft the beginning of the year for a different problem they checked out the Front Panel switches and said the switch operation is fine, but it's not. I have seen the problem on a fairly new K3 owned by a ham near here I have seen the problem on the K3s at the Elecraft booth at Hamcom. Again, it is intermittent. For the longest time I figured it was me and the way I press the buttons on #570 I did try SW test and Sca Adc - at times the beeps were slow, unevenly spaced or did not appear at all and it did not seem to me that the switches with flickering scan codes were the switches that were causing mis-operations. But when I press and hold the ALT to switch sidebands, and the radio changes three modes, maybe a band, reverses sideband and turns on the RX ANT, it causes one to wonder but K3support does not have any of these problems! So I have decided that the K3 switches are a trade-off to have the best receiver that is out there in the Amateur market. And so are the several other operational quirks, but again I can put up with those when and if they come up to the top of the upcoming K3 features list. Like you, I'm out of warranty, so $400 is out of the question for yet another Front Panel board. Besides, I don't think it can be fixed. 73HankK8DD __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] [K2] KAT100 error
Hi Karl, Yes, both check out fine with my MFJ-269 Thanks for the suggestion. KARL MARDERIAN wrote: Hi, n6xvt Karl. 1 is the cable from radio to dummy load good? 2 is the dummy load any good? 73 n6xvt Sent from my iPhone On Sep 22, 2009, at 6:41 PM, W4HDM w4...@bellsouth.net wrote: My KAT100 was working fine then developed a problem recently. For those wondering what happened to my for sale listing this is why I removed it. At first the tune sequence would tune at times and other times it would stay at 9.9-1 and the lights would work most of the time. (Using a dummy load as well as an antenna) I checked the solder connections in the KAT100 and retouched a few. I noticed no change in behavior. I put the radio away for a few days and revisited the problem today Before doing anything I did a SWR Bridge alignment on the KPA100 just to be sure nothing had changed. I adjusted for 0 voltage using a DMM as instructed in the manual. Currently, the tune sequence gives a 1.0-1 reading on the K2 meter but the scale lights on the KAT100 do not light up while tuning or when keying. The antenna and power lights are working properly. When keying 100 watts into a dummy load the power is reduced by various amounts depending on the band and the K2 shows HI Refl, the same symptoms using an antenna. Using the menu for tuner readings, after hitting tune in the dummy load, I get: L00.4 C0.08 nET2 t 197 E243 Init F1.05 L0-L8 get relay clicks as well as C0-C8 and N1-N2 I am using the The KAT100/KPA100 in their own enclosure. Any help on where I should start from here to solve the problem? Thanks, Damon (Don .. I sent you an email on this when the symptoms first started, maybe it was lost in SPAM) - W4HDM-DAMON-K2#473 -- View this message in context: http://n2.nabble.com/KAT100-error-tp3696887p3696887.html Sent from the [K2] mailing list archive at Nabble.com. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html - W4HDM-DAMON-K2#473 -- View this message in context: http://n2.nabble.com/KAT100-error-tp3696887p3705656.html Sent from the [K2] mailing list archive at Nabble.com. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] pulsing hash
Arie Kleingeld PA3A-2 wrote: Dick, This could be the KIO2 cable inside the K2, running from the serial connector to the control board. If it sags down, this will cause that kind of hash because it is too close to the receiver circuitry. Keep this cable as close to the topcover as you can. If it isn't that, then it might be due to the use of a USB to serial adapter. Real serial ports tend to be quieter. This thread: http://n2.nabble.com/Re-serial-interface-noise-on-160m-propagates-through-K3-td3137659.html#a3137659 contains some information that might be helpful. - Julian, G4ILO. K2 #392 K3 #222. * G4ILO's Shack - http://www.g4ilo.com * KComm - http://www.g4ilo.com/kcomm.html * KTune - http://www.g4ilo.com/ktune.html -- View this message in context: http://n2.nabble.com/pulsing-hash-tp3703999p3706239.html Sent from the Elecraft mailing list archive at Nabble.com. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] pulsing hash
Arie Kleingeld PA3A-2 wrote: Dick, This could be the KIO2 cable inside the K2, running from the serial connector to the control board. If it sags down, this will cause that kind of hash because it is too close to the receiver circuitry. Keep this cable as close to the topcover as you can. If it isn't that, then it might be due to the use of a USB to serial adapter. Real serial ports tend to be quieter. Some have found that it is important to have continuity through the cable shielding from the K2 right through to the computer. - Julian, G4ILO. K2 #392 K3 #222. * G4ILO's Shack - http://www.g4ilo.com * KComm - http://www.g4ilo.com/kcomm.html * KTune - http://www.g4ilo.com/ktune.html -- View this message in context: http://n2.nabble.com/pulsing-hash-tp3703999p3706255.html Sent from the Elecraft mailing list archive at Nabble.com. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] K3 S-Meter and Noise
Hi All, I've had my new K3 up and running for about a week after replacing the DSP board during assembly due to the 5vdc rail being shorted to ground. The S-meter shows about S-2/3 noise and there is about an equal level of noise from the speaker. I have an IC-756ProIII sitting beside it and it shows S-0 with minimum noise from the speaker. Of course, I'm using the same mode and have set the filters in both to the same width. I have played with the preamp and attenuator in both and the K3 always shows a higher noise level with accompanying S-meter reading. My K2 is extremely quiet and does just great on the many portable trips I take. I may well be missing something on the K3 in all the myriad menu settings of the K3 but don't have a clue at this point as to how to proceed. I sure don't want to think this $2000 radio has such a noise problem and I'm going to have to live it. Does anyone have any information that may help? I would be most appreciative. Thank you, have a good day and 73. Jim, W0EM __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] K3 S-Meter and Noise
I had the same issue with my newest K3, so I had a basis to compare to another K3. Wayne put on his phone engineer hat and designed a circuit mod that reduced gain to an IF transformer, a resistor change. I can't imagine this kind of service from any other company - amazing. Since then they have been working on a provision in the utility program that will achieve the same effect, using only the firmware. Gotta love SDR. It's in the release notes but not quite ready AFAIK. [Elecraft] K3 S-Meter and Noise Jim Harris w0em at q.com Thu Sep 24 11:18:33 EDT 2009 Previous message: [Elecraft] New Elecraft Pricing Messages sorted by: [ date ] [ thread ] [ subject ] [ author ] Hi All, I've had my new K3 up and running for about a week after replacing the DSP board during assembly due to the 5vdc rail being shorted to ground. The S-meter shows about S-2/3 noise and there is about an equal level of noise from the speaker. I have an IC-756ProIII sitting beside it and it shows S-0 with minimum noise from the speaker. Of course, I'm using the same mode and have set the filters in both to the same width. I have played with the preamp and attenuator in both and the K3 always shows a higher noise level with accompanying S-meter reading. My K2 is extremely quiet and does just great on the many portable trips I take. I may well be missing something on the K3 in all the myriad menu settings of the K3 but don't have a clue at this point as to how to proceed. I sure don't want to think this $2000 radio has such a noise problem and I'm going to have to live it. Does anyone have any information that may help? I would be most appreciative. Thank you, have a good day and 73. Jim, W0EM __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] [K3] K3 3.33 Beta - did I miss it?
I don't see it yet on the download page and I thought I read that it would be available by early this week. 73, Bill nz0t -- View this message in context: http://n2.nabble.com/K3-3-33-Beta-did-I-miss-it-tp3707050p3707050.html Sent from the [K3] mailing list archive at Nabble.com. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] OT: Maytag Bravos RFI
The wife gave me the green light to replace our Whirlpool Duet washing machine, aside from the terrible interference it put on HF, she was not happy with the rinse cycle, it was leaving soap in our cloths -and- they were not getting clean. My decision, to abandon high efficiency front load and go back to tried and true conventional top load washer that has no computer/switcher power supply to hash me. Two days ago I bought a top loader, a Maytag Bravos from Fry's at $699 marked down $200. Should be a good one right? Nope, S5 interference across 17m and 20m every 15 khz. Seems they are now putting front load technology (computer/switcher) in top load washers. The clue is if the washer will only accept HD detergent. So that's two 1K retail machines that I cannot use. Fry's to their credit, hauled off the Bravos washer and brought in an LG I had selected. I had avoided the Korean alternative wanting to buy US, however the salesman said it was their best line. It is clearly a better quality unit, and even though it is a front loader with all the features, it is RF quiet. Hallalujah. The new washer is an LG WM0642H. I pray to the heavens that it cleans the cloths. ;-) __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] [K3] K3 3.33 Beta - did I miss it?
I don't see it yet on the download page and I thought I read that it would be available by early this week. Ongoing pre-beta testing revealed some weaknesses that needed strengthening. 73, Lyle KK7P __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] [K3] K3 3.33 Beta - did I miss it?
I missed it too Bill NZ0T wrote: I don't see it yet on the download page and I thought I read that it would be available by early this week. 73, Bill nz0t -- View this message in context: http://n2.nabble.com/K3-3-33-Beta-did-I-miss-it-tp3707050p3707096.html Sent from the [K3] mailing list archive at Nabble.com. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] K3 S-Meter and Noise
On Thu, 24 Sep 2009 15:18:33 +, Jim Harris w...@q.com wrote: Hi All, I've had my new K3 up and running for about a week after replacing the DSP board during assembly due to the 5vdc rail being shorted to ground. The S-meter shows about S-2/3 noise and there is about an equal level of noise from the speaker. I have an IC-756ProIII sitting beside it and it shows S-0 with minimum noise from the speaker. Of course, I'm using the same mode and have set the filters in both to the same width. I have played with the preamp and attenuator in both and the K3 always shows a higher noise level with accompanying S-meter reading. My K2 is extremely quiet and does just great on the many portable trips I take. I may well be missing something on the K3 in all the myriad menu settings of the K3 but don't have a clue at this point as to how to proceed. I sure don't want to think this $2000 radio has such a noise problem and I'm going to have to live it. Does anyone have any information that may help? I would be most appreciative. Thank you, have a good day and 73. Jim, W0EM [snip] Have you compared the two rigs with their antennas disconnected? Are they both on the same antenna? Have you calibrated the Icon/K2 S-Meters with a known 50 microvolt signal? What band are you on? Just a guess, but it sounds like the K3 has a more sensitive RX than the other two. 73, Tom, N5GE n...@n5ge.com K3 #806, K3 #1055, PR6, XV144, XV432, KRC2, W1 and other small kits. 2 W2's on order 1 K144XV on order http://www.n5ge.com http://www.swotrc.net __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] OT: Maytag Bravos RFI
On Thu, 24 Sep 2009 08:58:42 -0700 (PDT), Don Rasmussen wrote: The wife gave me the green light to replace our Whirlpool Duet washing machine, aside from the terrible interference it put on HF, she was not happy with the rinse cycle, it was leaving soap in our cloths -and- they were not getting clean. My decision, to abandon high efficiency front load and go back to tried and true conventional top load washer that has no computer/switcher power supply to hash me. Two days ago I bought a top loader, a Maytag Bravos from Fry's at $699 marked down $200. Should be a good one right? Nope, S5 interference across 17m and 20m every 15 khz. Seems they are now putting front load technology (computer/switcher) in top load washers. The clue is if the washer will only accept HD detergent. So that's two 1K retail machines that I cannot use. Fry's to their credit, hauled off the Bravos washer and brought in an LG I had selected. I had avoided the Korean alternative wanting to buy US, however the salesman said it was their best line. It is clearly a better quality unit, and even though it is a front loader with all the features, it is RF quiet. Hallalujah. The new washer is an LG WM0642H. I pray to the heavens that it cleans the cloths. ;-) Don, Many thanks! I'm forwarding this email to the RFI list, where there has been considerable discussion on this topic. 73, Jim K9YC __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] OT: Maytag Bravos RFI
My Kenwood front loader which is about 12' from my rigs is RF quiet. N2TK, Tony -Original Message- From: elecraft-boun...@mailman.qth.net [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Don Rasmussen Sent: Thursday, September 24, 2009 11:59 AM To: elecraft@mailman.qth.net Subject: [Elecraft] OT: Maytag Bravos RFI The wife gave me the green light to replace our Whirlpool Duet washing machine, aside from the terrible interference it put on HF, she was not happy with the rinse cycle, it was leaving soap in our cloths -and- they were not getting clean. My decision, to abandon high efficiency front load and go back to tried and true conventional top load washer that has no computer/switcher power supply to hash me. Two days ago I bought a top loader, a Maytag Bravos from Fry's at $699 marked down $200. Should be a good one right? Nope, S5 interference across 17m and 20m every 15 khz. Seems they are now putting front load technology (computer/switcher) in top load washers. The clue is if the washer will only accept HD detergent. So that's two 1K retail machines that I cannot use. Fry's to their credit, hauled off the Bravos washer and brought in an LG I had selected. I had avoided the Korean alternative wanting to buy US, however the salesman said it was their best line. It is clearly a better quality unit, and even though it is a front loader with all the features, it is RF quiet. Hallalujah. The new washer is an LG WM0642H. I pray to the heavens that it cleans the cloths. ;-) __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] pulsing hash
On Thu, 24 Sep 2009 06:46:05 -0700 (PDT), Julian, G4ILO wrote: Some have found that it is important to have continuity through the cable shielding from the K2 right through to the computer. Yes, and also to use twisted pairs for each signaling circuit between computer and radio. See http://audiosystemsgroup.com/RFI-Ham.pdf and http://audiosystemsgroup.com/HamInterfacing.pdf for descriptions of a serial cable that fixes problems like this. My initial experiments on this were the result of serious RFI issues with the K2 serial cable in close proximity to a long wire TX antenna that I used on 80M and 160M. Another point. Cable shielding IS a good thing, but using twisted pairs and terminating them to the chassis at each end, NOT to the circuit board, is the most important thing. 73, Jim Brown K9YC __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] [K3] K3 3.33 Beta - did I miss it?
That's OK guys; I am sure the next one will be far more lovable. Lyle is already giving it lots of TLC... :-) On Sep 24, 2009, at 9:23 AM, AD6XY wrote: I missed it too Bill NZ0T wrote: I don't see it yet on the download page and I thought I read that it would be available by early this week. 73, Bill nz0t -- View this message in context: http://n2.nabble.com/K3-3-33-Beta-did-I-miss-it-tp3707050p3707096.html Sent from the [K3] mailing list archive at Nabble.com. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html - Jack Brindle, W6FB - __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] OT: Maytag Bravos RFI
On Thu, 24 Sep 2009 12:44:11 -0400, N2TK wrote: My Kenwood front loader which is about 12' from my rigs is RF quiet. Proximity to your RIG doesn't matter. What matters is proximity to your ANTENNAS. 73, Jim K9YC __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] OT: Maytag Bravos RFI
I would consider this a whole lot less OT than a lot of things I read. I found it very valuable. There seems to be a site for nearly everything on the internet anymore. A valuable site would be one that hams would participate in and list items that are clean and don't interfere with the radio spectrum. The switching supplies seem to be a major culprit and it is just going to get worse. Even those that meet the FCC Part 15 Class B standards can be a real problem with our amateur equipment. In roughly the last year I have had switching power supply noise from my new computer which made DXing on the low bands impossible until I solved with filtering on the AC line. I had router noise across all the bands which made many, many frequenies un-useable some of which were places I operate a lot which I could not anymore. Fortunately I pretty well cured this by slowing the speed. Both of those answers came from this reflector so I would not call help permitting me to use my K3's OT. My latest problem which I have not been able to solve is 24 khz switching noise from my Outback MPPT solar controller. The harmonics from it make it all the way up to two meters. It is S-9+15 db on 160M. This switching noise is a tough one as IMHO it should be cured at the source rather than the output where instead of stopping the switching frequency you have the whole spectrum of interference to deal with. Of course if you start modifying internally you are going to void the warranty. At this point based on my last years experience before I buy anything different I am going to do my very best to try and find out about radio noise and if I can not then be sure I can return it without a penalty. Where possible one may have to bring a K3 with a gel battery to the store and check things out. The thing is there are a lot of things now that are noise sources that I for one would not expect as almost everything is going to switching supplies. Ed W0SD No virus found in this outgoing message. Checked by AVG - www.avg.com Version: 8.5.409 / Virus Database: 270.13.112/2392 - Release Date: 09/24/09 05:52:00 __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] OT: Maytag Bravos RFI
Just thinking about this. Is it across all HF bands RF type pickup? Or is it band specific? Is it only when the drum motor is running or is the RF noise there all the time the washer is on? Is the noise being picked up from the shields of the coax - do you hear the RF noise if you disconnect the cables from the rig and short or 50 ohm terminate the coax connector(s)? 73, N2TK, Tony -Original Message- From: elecraft-boun...@mailman.qth.net [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Jim Brown Sent: Thursday, September 24, 2009 12:43 PM To: RFI List; elecraft@mailman.qth.net Subject: Re: [Elecraft] OT: Maytag Bravos RFI On Thu, 24 Sep 2009 08:58:42 -0700 (PDT), Don Rasmussen wrote: The wife gave me the green light to replace our Whirlpool Duet washing machine, aside from the terrible interference it put on HF, she was not happy with the rinse cycle, it was leaving soap in our cloths -and- they were not getting clean. My decision, to abandon high efficiency front load and go back to tried and true conventional top load washer that has no computer/switcher power supply to hash me. Two days ago I bought a top loader, a Maytag Bravos from Fry's at $699 marked down $200. Should be a good one right? Nope, S5 interference across 17m and 20m every 15 khz. Seems they are now putting front load technology (computer/switcher) in top load washers. The clue is if the washer will only accept HD detergent. So that's two 1K retail machines that I cannot use. Fry's to their credit, hauled off the Bravos washer and brought in an LG I had selected. I had avoided the Korean alternative wanting to buy US, however the salesman said it was their best line. It is clearly a better quality unit, and even though it is a front loader with all the features, it is RF quiet. Hallalujah. The new washer is an LG WM0642H. I pray to the heavens that it cleans the cloths. ;-) Don, Many thanks! I'm forwarding this email to the RFI list, where there has been considerable discussion on this topic. 73, Jim K9YC __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] K7VK on 6m from Bare Cone Mountain in DN25tr Montana
Hello! Just in case you are in the western North America and still need grid DN25 on 6m, I wanted to let you know that K7VK, K7PX and I are planning to head up to 7800' Bare Cone Mountain in the Bitterroot Range on Monday September 28 for an overnight 6m Terrestrial Propagation Mode mini DXpedition. If anyone wants to see on Google Earth where we will be, the coordinates are: Latitude: 45°43'9.43N Longitude: 114°24'44.24W I am bringing along my K3 with PR6 preamp, laptop computer with GPS timekeeping. Vick has Steve's 5 element backup yagi tuned up, and I have broken down my 6M8GJ and Portable Mast ( http://www.bigskyspaces.com/w7gj/6M8GJassembly.htm ) into largish sections for transport and fast assembly up on the mountain top. I will take along LMR600 low loss feedline, just as on a 6m EME DXpediiton - the only difference is that we will not be running an amplifier up there. We hope to just beat the snow up there ;-) Vick says that he also will have liaison on 40m, so we will be monitoring 7133-7136 if people are not copying us and want to let us know to turn the antenna or something ;-) We will NOT have any internet capability up there, but please watch the ON4KST Region 2 6m chat page and the DX CLUSTER spots for information posted by others: http://www.on4kst.info/chat/login.php?band=7 We will monitor either 50.190 or 50.125 when we are not transmitting. Please don't expect us to be transmitting all the time, because we will only be on battery power. If people don't hear us, but are interested in working us, they should call for us. We will come on if we copy anything. Based on my experience and the 7800' high QTH we will have, I am sure we will be able to contact anyone between 600 and 1200 miles on JT65A mode using D layer scatter and under 600 miles on ground wave. This little barefoot (100w) DXpedition should demonstrate the ability to collect grids year-round on 6m using the power of JT65A. We will plan to start out between 1800 and 1900Z Monday on 50.190 beaming NW on JT65A mode (we will always XMIT in the first seqeuence, regardless of mode). I am inclined to stay primarily on 50.190 throughout the day and evening, switching to various modes as is appropriate. We will have CW and SSB capability also in the event signals are extraordinarily strong, and will monitor 50.125 when we are not busy working stations on 50.190. On Tuesday morning we will plan to operate FSK441 on 50.260 (and possibly QSY to some other frequency as required). If we are going to be listening up 10, we will send something like CQU10 K7VK DN25. Similarly, if we are listening down 10, we will send something like CQD10 K7VK DN25. We probably won't be on past about mid-morning on Tuesday, since we will have to tear down and leave at least by noon. I hope people who still need DN25 can be QRV at some point during our little mountain top excursion ;-) GL and VY 73, Lance -- Lance Collister, W7GJ (ex: WN3GPL, WA3GPL, WA1JXN, WA1JXN/C6A, ZF2OC/ZF8, E51SIX) P.O. Box 73 Frenchtown, MT 59834 USA QTH: DN27UB TEL: (406) 626-5728 URL: http://www.bigskyspaces.com/w7gj 2m DXCC #11, 6m DXCC #815 __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] OT: Maytag Bravos RFI
Jim, What is the URL for the RFI reflector please? I need to belong! If one makes a mistake and gets something that generates radio noise it can take hours and hours to try and cure the problem. Some of the problems are nearly impossible to cure as the basic design makes it prohibitive. Ed W0SD No virus found in this outgoing message. Checked by AVG - www.avg.com Version: 8.5.409 / Virus Database: 270.13.112/2392 - Release Date: 09/24/09 05:52:00 __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] OT: Maytag Bravos RFI
On Thu, 24 Sep 2009 11:51:44 -0500, W0SD Ed Gray wrote: A valuable site would be one that hams would participate in and list items that are clean and don't interfere with the radio spectrum. I agree. There IS a very good email reflector devoted to ham RFI. Access it through contesting.com 73, Jim K9YC __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] Fwd: pulsing hash
Thank you all for your response. The hash is no longer heard. As PA3A suggested, moving the inter connect ribbon cable up and away from the main K2 RF board solved the problem. Appreciate your consideration. 73 Dick AD1G Begin forwarded message: When running KComm, on the K2 as a logging program, I hear a pulsing hash, a varying amplitude hash with a peak rate of a few seconds. More prevalent on 40 meters, reducing a bit on 20 meters. When I disconnect all is OK. The hash is not that disturbing but if you tend to pay attention it could be bothersome. Any ideas? Thank you for your attention. Best regards Dick AD1G 73 __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] Check Your Buttons [switch current is _not_ too low]
David G3UNA, wrote: A quick look at the circuit diagram shows that buttons are taken from a potential divider to CD74HC4051M inputs. These switches (unless I've misread the diagram) will therefore take the input current of the multiplexer which is typically 1uA. I don't know the spec for the Elecraft switch but a similar one requires a minimum current of 10uA. This should be checked more rigorously, but it might indicate a potential problem. David, The K3's front panel switches do not have a minimum required current. I just verified this again with the manufacturer. They have gold- plated contacts on the PC board and should be extremely reliable. Regarding the switch test function in the menu: A small amount of digit flicker is perfectly normal. The A to D converter has an ambiguity of +/- one count, and the firmware algorithm reading the switch has no hysteresis, therefore +/- count of flicker is also to be expected. In firmware, we read the switch voltage several times, average them, and look for the proper switch code based on bins that have a large amount of excess margin. So the operator should not be concerned in the least about a deviation of even several counts in their own switch read voltages. If you're experiencing any type of switch-read error that isn't a hard failure, it is probably something that I can improve in firmware. I'll be happy to work with you on this -- please give me a detailed example. 73, Wayne N6KR __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] OT: Maytag Bravos RFI
N6XVT/Karl, No need for you to bring your K3. Just bring your portable shortwave reciever. I think ever Ham should own one. It is so great for hunting down interfearance of all kinds. 73 N6XVT Sent from my iPhone On Sep 24, 2009, at 9:51 AM, W0SD Ed Gray w...@triotel.net wrote: I would consider this a whole lot less OT than a lot of things I read. I found it very valuable. There seems to be a site for nearly everything on the internet anymore. A valuable site would be one that hams would participate in and list items that are clean and don't interfere with the radio spectrum. The switching supplies seem to be a major culprit and it is just going to get worse. Even those that meet the FCC Part 15 Class B standards can be a real problem with our amateur equipment. In roughly the last year I have had switching power supply noise from my new computer which made DXing on the low bands impossible until I solved with filtering on the AC line. I had router noise across all the bands which made many, many frequenies un-useable some of which were places I operate a lot which I could not anymore. Fortunately I pretty well cured this by slowing the speed. Both of those answers came from this reflector so I would not call help permitting me to use my K3's OT. My latest problem which I have not been able to solve is 24 khz switching noise from my Outback MPPT solar controller. The harmonics from it make it all the way up to two meters. It is S-9+15 db on 160M. This switching noise is a tough one as IMHO it should be cured at the source rather than the output where instead of stopping the switching frequency you have the whole spectrum of interference to deal with. Of course if you start modifying internally you are going to void the warranty. At this point based on my last years experience before I buy anything different I am going to do my very best to try and find out about radio noise and if I can not then be sure I can return it without a penalty. Where possible one may have to bring a K3 with a gel battery to the store and check things out. The thing is there are a lot of things now that are noise sources that I for one would not expect as almost everything is going to switching supplies. Ed W0SD No virus found in this outgoing message. Checked by AVG - www.avg.com Version: 8.5.409 / Virus Database: 270.13.112/2392 - Release Date: 09/24/09 05:52:00 __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] RFI noise
I lost a PC power supply, ordered a pair of replacements from Tiger Direct. They were neither half-KW monsters nor their cheapest supply. It had VDE/UL/FCC stickers, ALL of the agency certifications. Suspecting a line surge had killed the original supply I decided to stuff some MOV at the input connector of the new supplies before I even installed them. I opened the cases and found The PCB silkscreen showed RFI filter components, but none were installed: the board had direct wire jumpers from power in to the switching circuits. I connected it to the motherboard and found switcher EMI over the HF spectrum. For the record, my shop is in the garage, powered from seperate breakers, shop strips have 30A/230V encapsulated line filters and their own MOV. The radio gear was in a bedroom with coax feedlines goubg directly outside, buried for 250 feet to a yagi 50 feet in the air. No open wire feeders, no longwires direct to the shack. It seemed pretty clear the supplies had passed agency approvals with the filter components in place, but once they had the sticker they stopped putting those parts on the board. Bill - W7AAZ __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] Check Your Buttons [switch current is _not_ too low]
I remember having this problem with an old Advantest Drift-o-matic spectrum analyser at Uni. The buttons stopped working because the plastic let out some oils and this coated the gold and stopped the contacts working. I am not saying this is what has happened to Elecraft, I am sure that problem from 20 years ago if fixed now. My fairly recent Anritsu spectrum analyser has diffficult buttons too - as apparently does this laptop so it is a common problem. My K3 has sometimes had problems with switches too, but only rarely. My K2 is much worse in this respect. Have we found any user applications for the connector on the bottom of the panel yet? -- View this message in context: http://n2.nabble.com/Re-Check-Your-Buttons-switch-current-is-not-too-low-tp3707851p3708135.html Sent from the Elecraft mailing list archive at Nabble.com. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] OT: Maytag Bravos RFI
Oops, that's a KenMore. Also some have asked what model - HE4T - 110-4508. It is a few years old. As my wife was using it this afternoon I checked all bands with both my receive and transmit antennas. My antennas are no closer than 150' from the house. 73, N2TK, Tony -Original Message- From: N2TK [mailto:tony@verizon.net] Sent: Thursday, September 24, 2009 12:44 PM To: 'Don Rasmussen'; 'elecraft@mailman.qth.net' Subject: RE: [Elecraft] OT: Maytag Bravos RFI My Kenwood front loader which is about 12' from my rigs is RF quiet. N2TK, Tony -Original Message- From: elecraft-boun...@mailman.qth.net [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Don Rasmussen Sent: Thursday, September 24, 2009 11:59 AM To: elecraft@mailman.qth.net Subject: [Elecraft] OT: Maytag Bravos RFI The wife gave me the green light to replace our Whirlpool Duet washing machine, aside from the terrible interference it put on HF, she was not happy with the rinse cycle, it was leaving soap in our cloths -and- they were not getting clean. My decision, to abandon high efficiency front load and go back to tried and true conventional top load washer that has no computer/switcher power supply to hash me. Two days ago I bought a top loader, a Maytag Bravos from Fry's at $699 marked down $200. Should be a good one right? Nope, S5 interference across 17m and 20m every 15 khz. Seems they are now putting front load technology (computer/switcher) in top load washers. The clue is if the washer will only accept HD detergent. So that's two 1K retail machines that I cannot use. Fry's to their credit, hauled off the Bravos washer and brought in an LG I had selected. I had avoided the Korean alternative wanting to buy US, however the salesman said it was their best line. It is clearly a better quality unit, and even though it is a front loader with all the features, it is RF quiet. Hallalujah. The new washer is an LG WM0642H. I pray to the heavens that it cleans the cloths. ;-) __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] RFI noise
Bill, I have had good success with PC Power Cooling supplies. Have replaced all of the cheaper PC supplies with theirs. Got rid of the noise. http://www.pcpower.com/index.html N2TK, Tony -Original Message- From: elecraft-boun...@mailman.qth.net [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of William Carver Sent: Thursday, September 24, 2009 3:09 PM To: Elecraft@mailman.qth.net Subject: [Elecraft] RFI noise I lost a PC power supply, ordered a pair of replacements from Tiger Direct. They were neither half-KW monsters nor their cheapest supply. It had VDE/UL/FCC stickers, ALL of the agency certifications. Suspecting a line surge had killed the original supply I decided to stuff some MOV at the input connector of the new supplies before I even installed them. I opened the cases and found The PCB silkscreen showed RFI filter components, but none were installed: the board had direct wire jumpers from power in to the switching circuits. I connected it to the motherboard and found switcher EMI over the HF spectrum. For the record, my shop is in the garage, powered from seperate breakers, shop strips have 30A/230V encapsulated line filters and their own MOV. The radio gear was in a bedroom with coax feedlines goubg directly outside, buried for 250 feet to a yagi 50 feet in the air. No open wire feeders, no longwires direct to the shack. It seemed pretty clear the supplies had passed agency approvals with the filter components in place, but once they had the sticker they stopped putting those parts on the board. Bill - W7AAZ __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] RFI noise
I have had good success with PC Power Cooling supplies. Have replaced all of the cheaper PC supplies with theirs. Got rid of the noise. http://www.pcpower.com/index.html N2TK, Tony THIS kind of information is invaluable. I had a stash of common mode chokes and line-certified capacitors so added the line filter onto the supplies I bought, but vowed NEVER AGAIN to get no-name supplies. Thanks, Tony. Bill __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] RFI noise
On Thu, 2009-09-24 at 13:08 -0600, William Carver wrote: ... It had VDE/UL/FCC stickers, ALL of the agency certifications. ... It seemed pretty clear the supplies had passed agency approvals with the filter components in place, but once they had the sticker they stopped putting those parts on the board. You should report them to the FCC. They could get in big trouble if they really did that. Al N1AL __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] OT: Maytag Bravos RFI
On Thu, 24 Sep 2009 11:56:59 -0500, W0SD Ed Gray wrote: What is the URL for the RFI reflector please? I need to belong Join via contesting.com 73, Jim K9YC __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] RFI noise
I installed a 350w PS from Antec in one of my computers and the noise disappeared. One other computer, I installed a Corcom 6EF1 RFI module at the AC input and that cleared up the computer hash on 30m. This drove me nuts for about two years as I was hearing this warbling hash going up and down the 30m band. Thought it was some kind of digital noise from somplace in EU. After flipping breakers in the house, noticed that the 2nd floor breaker stopped the noise...narrowed it down to the computer ps. Tom/k1tl... __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] RFI noise
I've bought the parts for several high-end computers from Tiger Direct and haven't any problem with power supplies (or much of anything else, for that matter), but I always buy the power supplies made by Ultra (a solid brand name) because I like their modular cable system. Ultra even offers a full lifetime warranty now if you register it online, and their reputation for addressing user problems is very good. 73, Dave AB7E N2TK wrote: Bill, I have had good success with PC Power Cooling supplies. Have replaced all of the cheaper PC supplies with theirs. Got rid of the noise. http://www.pcpower.com/index.html N2TK, Tony __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] AF CONTROLS placement,,,, revisited
going for glorosio for 17 meters while split ... I think i'd much prefer the front of the two concentrics to be AF main ( bottom) and AF sub top as I find myself constantly reaching behind to change the level of the sub channel while hunting .. someone recently suggested a menu setting to flip something to attain the same goal. having the balance in front .( i think )...or maybe both AFs in front . AND yes I also peeked at the backplane to see abt a pcb mod... which would be more appropriate in SW. I reverted to another older rig where the two rcvrs have separate pots and the af is in front of the rf seems more intuitive and easier,. k3#49 bill __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] RFI noise
At 02:08 PM 9/24/2009, William Carver wrote: I lost a PC power su filter parts missing from production power suppliesprobably after agency certifications. RSGB's magazine has been on this issue for many months with pictures etc I believe that they had not much concern from their OFCOM on the issue. I would think the FCC would not take well to being frauded ...in this fashion. I'd copy the list with your brand names model numbers,, do copy the RFI list and let the folks at Tiger Direct they got shipped 'defective fraudulent goods as well... back to Ft5ga bill __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] New Elecraft Pricing
Yes, and it has been getting updated with more increases during the day. I'm waiting for some eBay auctions to close Sunday so I can order my K2. I had hoped we would get some warning when the date was firm, crap :-( . Gary KJ7RT Brett Howard wrote: The new Elecraft pricing has just gone into effect. Its up and live on the order page. ~BTH __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] RFI
The MFJ-1026 will cure it. You only need a simple external antenna near the noise source. Phase that kind of noise out. Cheers, Don Hi Don I know what you were going thru as my next door neighbor has a Kenmore front-loader (made by Whirlpool, I think) and I hear the RFI on my radio and I am 200 feet away from his house and the antenna is 400 feet in the backyard from his house. Seems every 15/18KHz or so, I hear the hash noise...since I use 30m, it falls on 10.103 and 10.118 but is fairly broad so covers up weak signals. I gave him an EMI/RFI suppressor block but that didn't even work...so I guess, the mods have to be made internally but I don't even want to go there. Looks like the FCC is turning their backs on this one. I have a Maytag top loader with a rotary analog switch and sure hope it doesn't poop out anytime soon. Hate to dig into my stash of ham radio . 73 Tom /K1TL k...@cox.net ... __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] Check Your Buttons [switch current is _not_ too low]
AD6XY wrote: My K3 has sometimes had problems with switches too, but only rarely. My K2 is much worse in this respect. Have we found any user applications for the connector on the bottom of the panel yet? At least on the K2 with it's bouncing switches it is not only a known problem, especially with the A/B and A=B switches, but you can fairly easily replace them - I changes out about 20 of them on my two K2s. And you get some physical feedback on the K2. On the K3 that is not true. -- View this message in context: http://n2.nabble.com/Re-Check-Your-Buttons-switch-current-is-not-too-low-tp3707851p3709272.html Sent from the Elecraft mailing list archive at Nabble.com. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] RFI noise
The power supplies sans the RFI filter were to repair a computer that's now gone. I might be able to find the second supply that I never used, but it's old business. Honestly there is so much of this coming over that the FCC couldn't cope with it all even if it happened yesterday. Cutting corners on RFI is a two way street: without any filtering your computer is more vulnerable to our RF getting in via the power cord. The info from Tony that PCPOWER IS a reliable power supply vendor that will probably protect their reputation and supply performance is the good news. W7AAZ __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] Check Your Buttons [switch current is _not_ too low]
At 06:54 PM 9/24/2009, .k8dd. wrote... At least on the K2 with it's bouncing switches it is not only a known problem, especially with the A/B and A=B switches, but you can fairly easily replace them - I changes out about 20 of them on my two K2s. K2 switches are readily available from Mouser and Digikey (Elecraft, too, obviously). E-switch TL1100F160Q. I mention this because it's an easy thing to add on to an order, and it's handy to keep some spares. A couple of other common parts: Potentiometers, 9mm snap in - Alpha 9mm (mouser 317-2080F-5K, 317-2090F-5K) Headphone jack - Kobiconn 161-3503-EX __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] K2 cannot be swithed ON properly.
On Wed, 2009-09-23 at 08:26 -0400, Don Wilhelm wrote: That sounds like your K2 may have 2 problems. 1) It is going into transmit immediately after power-on I've had this happen in SSB mode with the VOX turned on because the mic was picking up a steady noise (such as a computer fan). It's easy to check - unplug the mic! Could also be a PTT signal from an external source such as a PSK31 interface. Check the easy stuff first! __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] K3 beta location
Can someone tell me where to find Beta release 3.27? I've looked on the Elecraft fpt site and see version 3.3 and the Old Beta folder the numbers stop at 3.19. I've refreshed the browser but still don't see what I'm looking for. Thanks, Chuck NN7U __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] RFI
Tom, So-called EMI/RFI filters are typically differential-mode devices (i.e., there is an L/C filter in each side of the AC line). Noise generated by switching power supplies is, at least in my experience, usually common-mode. Differential mode RFI filters won't do a thing for it. Get a big ferrite toroidal core (type 43 is a good mix) and wrap it fully with the AC line cord close to the machine. You will probably find that the noise is eliminated or reduced. If it is reduced but not eliminated, put another core in series with the first one, extending the line cord if necessary. If your neighbor is willing to continue to help you solve the problem, I'd try this before going to a noise phaser, which are a pain to adjust every time you switch frequencies. Bill W5WVO Don Rasmussen wrote: The MFJ-1026 will cure it. You only need a simple external antenna near the noise source. Phase that kind of noise out. Cheers, Don Hi Don I know what you were going thru as my next door neighbor has a Kenmore front-loader (made by Whirlpool, I think) and I hear the RFI on my radio and I am 200 feet away from his house and the antenna is 400 feet in the backyard from his house. Seems every 15/18KHz or so, I hear the hash noise...since I use 30m, it falls on 10.103 and 10.118 but is fairly broad so covers up weak signals. I gave him an EMI/RFI suppressor block but that didn't even work...so I guess, the mods have to be made internally but I don't even want to go there. Looks like the FCC is turning their backs on this one. I have a Maytag top loader with a rotary analog switch and sure hope it doesn't poop out anytime soon. Hate to dig into my stash of ham radio . 73 Tom /K1TL k...@cox.net ... __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] RFI noise
Bill, In the UK it is the case that many SMPSU's have, once CE certification has been obtained been manufactured in volume with the input filter parts omitted. These are in the main imports from Tiawan and China. These non-compliant PSU's have been brought to the attention of our regulator Ofcom, which dragged it's heels, and has finally - done nothing. In the UK we have TSO's (Trading Standards Offices) which are locally based. They are tasked with enforcing vast amounts of EU legislation with little funding. The EMC Directive to which these PSU's must comply comes within their remit. Trading Standards were recently involved in a investigation into a Taiwanese company that was importing SMPSU's that breached a number of CE marking requirements, including the EMC one. Although substantial evidence was gathered (at some expense to TS) which in the case of EMC compliance with EN55022 showed the PSU's to be over the limit by 30dB, no prosecution has taken place. This was due to poor wording which crept in when the UK regulations were transposed from the EU ones. A total waste of time and money... Trading Standards have stated, that until the UK EMC Regulations 2006 are amended, they will not take on any further EMC complaints. This leaves the door wide open for any company that wishes to avoid the extra expense of CE compliance to do what it wants. 73 Stewart G3RXQ On Thu, 24 Sep 2009 15:32:20 -0500, Bill NY9H wrote: At 02:08 PM 9/24/2009, William Carver wrote: I lost a PC power su filter parts missing from production power suppliesprobably after agency certifications. RSGB's magazine has been on this issue for many months with pictures etc I believe that they had not much concern from their OFCOM on the issue. I would think the FCC would not take well to being frauded ...in this fashion. I'd copy the list with your brand names model numbers,, do copy the RFI list and let the folks at Tiger Direct they got shipped 'defective fraudulent goods as well... back to Ft5ga bill __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
