Re: [Elecraft] [K3] LPF DSP modification
Per Elecraft's info, I have a pre-Rev. C DSP board (#1030). Were there pre-Rev. B DSP boards issued from Elecraft? Other than schematics, is there documentation available of the changes from Rev. B DSP to Rev. C DSP? 73, Dick - KA5KKT -- Yes, you can find them by comparing the January 2010 schematics to previous schematics. The changes are similar to the W9AC mods but they involve scaling resistors instead of capacitors. 73, ... Joe, W4TV __ 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 SO2R Question
Thanks Don. 73, Igor UA9CDC Igor, Looking at the Elecraft website for K3 Mods and application notes, it says *About 09/01/09 (RF board Rev H3) and later. *The serial number is difficult to track because of the difference between kit-built and factory assembled K3s. The ship date is the most significant tracking method for mods that are included. When in doubt, consult www.elecraft.com. 73, Don W3FPR Igor Sokolov wrote: Starting what serial numbers please. 73, Igor UA9CDC All New K3s for some time have had this change made at the factory before they ship. 73, Eric On 3/8/2010 4:04 PM, Brett Howard wrote: http://www.elecraft.com/K3/mods/K3%20rx%20protection%20mod,%20rev%20B.pdf That document explains a mod that you should definitely make sure is in place in your radio if you're worried about this condition. I had one of Q8 and Q9 blow in my radio after too much power came back in from another operator who told me he *WAS* staying off of 20 meter like to told him to do he was down on 14 meters! ;) Anyway we replaced the Q and the rig came back to life. But if you view that document it says that when you get to +13 to +20dBm it will automatically engage the preamp for you. +20dBm is 100mW so that would at least give you an added 10dB of protection on your way up to the 1-2W realm. ~Brett (KC7OTG) __ 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 No virus found in this incoming message. Checked by AVG - www.avg.com Version: 9.0.733 / Virus Database: 271.1.1/2730 - Release Date: 03/08/10 02:34:00 __ 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] K3 SO2R Question
Bob, I live on a postage size lot so big antennas and lots of separation is not possible. I usually run an ALS-500M amp. My initial thought is to run both K3's on the same bands. However, digging out mult's on different bands might be the way to go. The same band idea came from my days with duel watch radio's. It's all a growing and learning experience. I've looked at the ICE filters plus those from other companys. I'm guessing at this point the more isolation (expensive) filters would be better. I've discovered in the last day or so that when signal levels are over about S9+30/40 the K3 receiver goes strangely quiet and no bars on the S-meter are light. It takes from a few seconds to a minute or so to recover. Thank you for your suggestions. CU in the Colorado QSO Party Sept 4th, 2010. 73, Jim, W0EM From: w...@w5ov.com To: w...@q.com; elecraft@mailman.qth.net Subject: RE: [Elecraft] K3 SO2R Question Date: Mon, 8 Mar 2010 17:20:49 -0600 Jim, Are you asking if you can run high power SO2R and do so safely without bandpass filters? You didn't mention what power level, and this makes a huge difference. You can use ICE bandpass filters (-30 to -35db) which are relatively cheap (~$40 each). Their performance is not as good as W3NQN design filters (-75db to -80db) which are the ones that cost big bucks(~$99 each). If you allocate one radio to doing say 160, 40 and 15 and the other to doing 80, 20 and 10m, you could get by with just one set of 6 bandpass filters. While bandpass filters have a by-product of protecting your radio's front end, that's not all they do. The filter on the transmitter limits what gets out and the filter on the receiver limits what gets in - so having a filter on each radio increases the benefit. This is more of a practical operational thing than being protective. Also, when you say separation of frequencies within the band do you intend to run both radios on the same band? Needless to say, bandpass filters will not be of any use if you do this. The key here is physical separation of your antennas so that the coupling between the two is minimized. Bob W5OV P.S. ICE has a new owner and is delivering product again much more quickly. -Original Message- From: elecraft-boun...@mailman.qth.net [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Jim Harris Sent: Monday, March 08, 2010 4:03 PM To: Elecraft Email Subject: [Elecraft] K3 SO2R Question Hi Folks, I'm currently selling an off-shore rig with the hopes of acquiring a second K3 for SO2R, primarily for RTTY contesting. I believe I've seen somewhere in the not to distant past that is was said the K3 receive front end can withstand 1-2 watts without damage. I've spent the last hour reviewing the email archive and can find no reference to that. Can anyone confirm or deny my remembrance? (Or, is it all just wishful thinking?) Is there anyone on the reflector that is operating a K3 SO2R station without the thousand or so dollars of band pass filters needed to protect the radio's front end? Second part of the question is.if possible to not damage the front end, what is the possibility of desensing or causing blocking or noise that would interfere with reception on one receiver when transmitting on the other radio. I'm sure that is highly dependent on band(s) and separation of frequencies within the band. I'll fully aware of the K3's ability to completely block signals a few kilohertz away but when RTTY contesting I do seem to notice there may be some desensing or AGC action from these signals even though they are not heard or processed by MMTTY. Comments very much appreciated. CU in the Colorado QSO Party Sept 4th, 2010. 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 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] EQP (Elecraft QSO Party) this weekend -- rules updated
Please join us for the Elecraft QSO party, 1800z March 13 to 1800z March 14. It's open to everyone -- no Elecraft rig required. Complete rules can be found at http://www.elecraft.com/Awards/eqp_2010.htm The object is to have fun, work old and new friends, work new S/P/C's (States/Provinces/Countries), and optionally collect some Elecraft rig serial numbers. You can also work toward an Elecraft WAS or CC award: http://www.elecraft.com/elecraft_awards.htm There's one minor change to the EQP rules this year: The recommended SSB frequency on 20 meters is 14250 +/- kHz. If you have questions about the rules, please send them to n6kr at elecraft dot com. 73, Wayne, N6KR Eric, WA6HHQ __ 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 SO2R Question
Tony, Thank you for the link. Those are not the exact words I remember but they contribute to my understanding. I received my K3 in early September 2009 and it has the mod. CU in the Colorado QSO Party Sept 4th, 2010. 73, Jim, W0EM Date: Mon, 8 Mar 2010 18:33:34 -0500 From: jafe...@rogers.com To: w...@q.com CC: elecraft@mailman.qth.net Subject: Re: [Elecraft] K3 SO2R Question Hi Jim, I think this is the thread you are looking for: http://n2.nabble.com/KRX3-Overload-Protection-on-160M-td3814157.html#a3814157 Hope this helps. 73 Tony Fegan VE3QF Jim Harris wrote: Hi Folks, I'm currently selling an off-shore rig with the hopes of acquiring a second K3 for SO2R, primarily for RTTY contesting. I believe I've seen somewhere in the not to distant past that is was said the K3 receive front end can withstand 1-2 watts without damage. I've spent the last hour reviewing the email archive and can find no reference to that. Can anyone confirm or deny my remembrance? (Or, is it all just wishful thinking?) Is there anyone on the reflector that is operating a K3 SO2R station without the thousand or so dollars of band pass filters needed to protect the radio's front end? Second part of the question is.if possible to not damage the front end, what is the possibility of desensing or causing blocking or noise that would interfere with reception on one receiver when transmitting on the other radio. I'm sure that is highly dependent on band(s) and separation of frequencies within the band. I'll fully aware of the K3's ability to completely block signals a few kilohertz away but when RTTY contesting I do seem to notice there may be some desensing or AGC action from these signals even though they are not heard or processed by MMTTY. Comments very much appreciated. CU in the Colorado QSO Party Sept 4th, 2010. 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 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 SO2R Question
Brett, Thank you for the link. As I mentioned in a reply to someone else my radio has the mod. In lieu of any definitive statement from Elecraft it probably would be best to go in the safer direction of using filters. CU in the Colorado QSO Party Sept 4th, 2010. 73, Jim, W0EM From: br...@livecomputers.com Date: Mon, 8 Mar 2010 16:04:28 -0800 Subject: Re: [Elecraft] K3 SO2R Question To: w...@q.com CC: elecraft@mailman.qth.net http://www.elecraft.com/K3/mods/K3%20rx%20protection%20mod,%20rev%20B.pdf That document explains a mod that you should definitely make sure is in place in your radio if you're worried about this condition. I had one of Q8 and Q9 blow in my radio after too much power came back in from another operator who told me he *WAS* staying off of 20 meter like to told him to do he was down on 14 meters! ;) Anyway we replaced the Q and the rig came back to life. But if you view that document it says that when you get to +13 to +20dBm it will automatically engage the preamp for you. +20dBm is 100mW so that would at least give you an added 10dB of protection on your way up to the 1-2W realm. ~Brett (KC7OTG) On Mon, Mar 8, 2010 at 2:03 PM, Jim Harris w...@q.com wrote: Hi Folks, I'm currently selling an off-shore rig with the hopes of acquiring a second K3 for SO2R, primarily for RTTY contesting. I believe I've seen somewhere in the not to distant past that is was said the K3 receive front end can withstand 1-2 watts without damage. I've spent the last hour reviewing the email archive and can find no reference to that. Can anyone confirm or deny my remembrance? (Or, is it all just wishful thinking?) Is there anyone on the reflector that is operating a K3 SO2R station without the thousand or so dollars of band pass filters needed to protect the radio's front end? Second part of the question is.if possible to not damage the front end, what is the possibility of desensing or causing blocking or noise that would interfere with reception on one receiver when transmitting on the other radio. I'm sure that is highly dependent on band(s) and separation of frequencies within the band. I'll fully aware of the K3's ability to completely block signals a few kilohertz away but when RTTY contesting I do seem to notice there may be some desensing or AGC action from these signals even though they are not heard or processed by MMTTY. Comments very much appreciated. CU in the Colorado QSO Party Sept 4th, 2010. 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 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 SO2R Question
Jim, for single band operation the sub-receiver works very well and does not need additional filters. If you find a mult on the sub, just stop your CQ, tap A/B, make your call, then tap A/B and go back to CQ. You don't need another K3 on the same band for that. Willis 'Cookie' Cooke K5EWJ From: Jim Harris w...@q.com To: w...@w5ov.com; Elecraft Email elecraft@mailman.qth.net Sent: Tue, March 9, 2010 11:08:42 AM Subject: Re: [Elecraft] K3 SO2R Question Bob, I live on a postage size lot so big antennas and lots of separation is not possible. I usually run an ALS-500M amp. My initial thought is to run both K3's on the same bands. However, digging out mult's on different bands might be the way to go. The same band idea came from my days with duel watch radio's. It's all a growing and learning experience. I've looked at the ICE filters plus those from other companys. I'm guessing at this point the more isolation (expensive) filters would be better. I've discovered in the last day or so that when signal levels are over about S9+30/40 the K3 receiver goes strangely quiet and no bars on the S-meter are light. It takes from a few seconds to a minute or so to recover. Thank you for your suggestions. CU in the Colorado QSO Party Sept 4th, 2010. 73, Jim, W0EM From: w...@w5ov.com To: w...@q.com; elecraft@mailman.qth.net Subject: RE: [Elecraft] K3 SO2R Question Date: Mon, 8 Mar 2010 17:20:49 -0600 Jim, Are you asking if you can run high power SO2R and do so safely without bandpass filters? You didn't mention what power level, and this makes a huge difference. You can use ICE bandpass filters (-30 to -35db) which are relatively cheap (~$40 each). Their performance is not as good as W3NQN design filters (-75db to -80db) which are the ones that cost big bucks(~$99 each). If you allocate one radio to doing say 160, 40 and 15 and the other to doing 80, 20 and 10m, you could get by with just one set of 6 bandpass filters. While bandpass filters have a by-product of protecting your radio's front end, that's not all they do. The filter on the transmitter limits what gets out and the filter on the receiver limits what gets in - so having a filter on each radio increases the benefit. This is more of a practical operational thing than being protective. Also, when you say separation of frequencies within the band do you intend to run both radios on the same band? Needless to say, bandpass filters will not be of any use if you do this. The key here is physical separation of your antennas so that the coupling between the two is minimized. Bob W5OV P.S. ICE has a new owner and is delivering product again much more quickly. -Original Message- From: elecraft-boun...@mailman.qth.net [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Jim Harris Sent: Monday, March 08, 2010 4:03 PM To: Elecraft Email Subject: [Elecraft] K3 SO2R Question Hi Folks, I'm currently selling an off-shore rig with the hopes of acquiring a second K3 for SO2R, primarily for RTTY contesting. I believe I've seen somewhere in the not to distant past that is was said the K3 receive front end can withstand 1-2 watts without damage. I've spent the last hour reviewing the email archive and can find no reference to that. Can anyone confirm or deny my remembrance? (Or, is it all just wishful thinking?) Is there anyone on the reflector that is operating a K3 SO2R station without the thousand or so dollars of band pass filters needed to protect the radio's front end? Second part of the question is.if possible to not damage the front end, what is the possibility of desensing or causing blocking or noise that would interfere with reception on one receiver when transmitting on the other radio. I'm sure that is highly dependent on band(s) and separation of frequencies within the band. I'll fully aware of the K3's ability to completely block signals a few kilohertz away but when RTTY contesting I do seem to notice there may be some desensing or AGC action from these signals even though they are not heard or processed by MMTTY. Comments very much appreciated. CU in the Colorado QSO Party Sept 4th, 2010. 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 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:
Re: [Elecraft] DSP Board Modification
Greetings to the list. I recently purchased a K3, serial number in the late 800's. I absolutely love the radio so far. My question is, is the DSP performance really improved with the new board when you factor the cost? WB9NJB R. Hunter Ellington 303-454-0543/720-560-8139 P.O. Box 44 Larkspur, CO 80118 From: elecraft-requ...@mailman.qth.net elecraft-requ...@mailman.qth.net To: elecraft@mailman.qth.net Sent: Tue, March 9, 2010 10:00:04 AM Subject: Elecraft Digest, Vol 71, Issue 12 Send Elecraft mailing list submissions to elecraft@mailman.qth.net To subscribe or unsubscribe via the World Wide Web, visit http://mailman.qth.net/mailman/listinfo/elecraft or, via email, send a message with subject or body 'help' to elecraft-requ...@mailman.qth.net You can reach the person managing the list at elecraft-ow...@mailman.qth.net When replying, please edit your Subject line so it is more specific than Re: Contents of Elecraft digest... Today's Topics: 1. Re: K3 SO2R Question (Igor Sokolov) 2. Re: K3 SO2R Question (Don Wilhelm) 3. Re: K3 SO2R Question (Igor Sokolov) 4. Re: [K3] LPF DSP modification (Edward Dickinson, III) -- __ 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 unresponsive
I'm to the point of installing the 100w PA assembly but have been trying to resolve the s-meter issue... Whether attached to an antenna tuned to weak, strong or no signals or no antenna attached at all - the S meter reads the same: 1 LCD on and an additional LCD flickering with the default values. A calibrated Gigatronics 2420M set at -73 dBm (which I believe is 50uV into 50 ohms) gives the same indication. SMTR SC has no effect at all on the S meter reading. SMTR OF raises the meter reading to 4 LCDs/1 flickering, but this reading then stays the same even when I turn the Gigatronics off. So the S meter is not responding to any change in input levels - varying the Gigs output level confirms this. Suggestions gratefully received! Thanks and 73, John Harper AE5X __ 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] Any Consideration of a Receive Only K3?
A version minus the 12 Watt exciter would be very easy to implement, would it not? The SWL BCBDXer community is interested. The DSP synchronous detector will be a major attraction for shortwave listeners. Dave Rickmers KD6IL K3 #3842 __ 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] DSP Board Modification
Hunter, The DSP performance is unchanged with the new DSP board. The only thing that changes is the audio response - extended low frequency response and the addition of a Low Pass audio filter. The audio path is on the DSP board, but has nothing to do with the DSP itself. 73, Don W3FPR Hunter Ellington wrote: Greetings to the list. I recently purchased a K3, serial number in the late 800's. I absolutely love the radio so far. My question is, is the DSP performance really improved with the new board when you factor the cost? WB9NJB R. Hunter Ellington 303-454-0543/720-560-8139 P.O. Box 44 Larkspur, CO 80118 From: elecraft-requ...@mailman.qth.net elecraft-requ...@mailman.qth.net To: elecraft@mailman.qth.net Sent: Tue, March 9, 2010 10:00:04 AM Subject: Elecraft Digest, Vol 71, Issue 12 Send Elecraft mailing list submissions to elecraft@mailman.qth.net To subscribe or unsubscribe via the World Wide Web, visit http://mailman.qth.net/mailman/listinfo/elecraft or, via email, send a message with subject or body 'help' to elecraft-requ...@mailman.qth.net You can reach the person managing the list at elecraft-ow...@mailman.qth.net When replying, please edit your Subject line so it is more specific than Re: Contents of Elecraft digest... Today's Topics: 1. Re: K3 SO2R Question (Igor Sokolov) 2. Re: K3 SO2R Question (Don Wilhelm) 3. Re: K3 SO2R Question (Igor Sokolov) 4. Re: [K3] LPF DSP modification (Edward Dickinson, III) -- __ 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 No virus found in this incoming message. Checked by AVG - www.avg.com Version: 9.0.733 / Virus Database: 271.1.1/2732 - Release Date: 03/09/10 02:33:00 __ 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] Any Consideration of a Receive Only K3?
I applaude any company presenting a new receiver, but it seems to have become a very unprofitable or uncertain market. On the other hand you might say a receiver is a step-up platform for future hams who will choose a tranceiver with receiver brand experience. The last Icom ham receiver was the R75? The last Yaesu the FRG100? The last Kenwood the R5000? The last Drake? It's such a pity the receiver market declined so much. Personally I listen 95 percent of the time. I agree it would be brave and very respectable if Elecraft would present a serious receiver based on the company's proven technology. The good news: AOR and (ex Lowe's/AR7030) John Thorpe will be releasing a new HF receiver soon. And it will be one WITH knobs :-) 73' Paul PD0PSB -- View this message in context: http://n2.nabble.com/Any-Consideration-of-a-Receive-Only-K3-tp4704530p4704754.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] Recievers
I love good receivers. I have a Yaesue FRG 7 and a Sony 7600GR. I would be great if Elecraft made a version of the K3. Without amp and no Sub receiver. It should be in the high hundreds for the kit and close to a grant for ready to go. With the extra room one would be able to batters? Karl N6XVT __ 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] Any Consideration of a Receive Only K3?
I doubt that a receive-only K3 would cost significantly less than a K3/10. Unless there are licensing issues in a particular country, an SWL could buy a K3/10 with a sub-receiver and enjoy full diversity reception today. Just be careful not to transmit. /Rick N6XI On 3/9/10, Dave Rickmers ricke...@dslextreme.com wrote: A version minus the 12 Watt exciter would be very easy to implement, would it not? The SWL BCBDXer community is interested. The DSP synchronous detector will be a major attraction for shortwave listeners. -- Rick Tavan N6XI Truckee, CA __ 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] EQP (Elecraft QSO Party) this weekend -- rules updated
Why don't you chose a freq for 40M overnight,after 2200Z the 20M band will be closed in our hemisphere but after that hour 40M is open to Europe and Africa easy.Give it a thought. AD4C For a refined ham it is compulsory to own a k3 --- On Tue, 3/9/10, Wayne Burdick n...@elecraft.com wrote: From: Wayne Burdick n...@elecraft.com Subject: [Elecraft] EQP (Elecraft QSO Party) this weekend -- rules updated To: Elecraft Reflector elecraft@mailman.qth.net Cc: QRP-L qr...@mailman.qth.net, elecraft...@yahoogroups.com, elecr...@yahoogroups.com Date: Tuesday, March 9, 2010, 5:11 PM Please join us for the Elecraft QSO party, 1800z March 13 to 1800z March 14. It's open to everyone -- no Elecraft rig required. Complete rules can be found at http://www.elecraft.com/Awards/eqp_2010.htm The object is to have fun, work old and new friends, work new S/P/C's (States/Provinces/Countries), and optionally collect some Elecraft rig serial numbers. You can also work toward an Elecraft WAS or CC award: http://www.elecraft.com/elecraft_awards.htm There's one minor change to the EQP rules this year: The recommended SSB frequency on 20 meters is 14250 +/- kHz. If you have questions about the rules, please send them to n6kr at elecraft dot com. 73, Wayne, N6KR Eric, WA6HHQ __ 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] Any Consideration of a Receive Only K3?
If I were looking for a little receive only thingie, I would buy a Perseus or something similar. Or an R-390, but I realize there's the risk of spinal injury with something that hefty. I have one, so I don't need another receive only thing, although back surgery is something I might consider if I ever have to move it from the operating table :-) Grant/NQ5T On Mar 9, 2010, at 3:06 PM, Rick Tavan N6XI wrote: I doubt that a receive-only K3 would cost significantly less than a K3/10. Unless there are licensing issues in a particular country, an SWL could buy a K3/10 with a sub-receiver and enjoy full diversity reception today. Just be careful not to transmit. __ 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] Any Consideration of a Receive Only K3?
A version minus the 12 Watt exciter would be very easy to implement, would it not? The SWL BCBDXer community is interested. The DSP synchronous detector will be a major attraction for shortwave listeners. You have looked at the schematic and seen how much stuff is switched back and forth for TX/RX? Easy to implement until one counted in the cost of a SEPARATE manufacturing run of mainboards, a SEPARATE manual, SEPARATE assembly instructions for kit form, a SEPARATE firmware that understood that there were no transmit functions, a SEPARATE silk-screening for the case, SEPARATE code for firmware, SEPARATE maintenance, a SEPARATE approach for the audio as the listeners are going to want high end audio, and I doubt that is close to a complete list. ...and all that for a niche that most manufacturers have abandoned? Why did they abandon it? Maybe because demand did not pay for manufacturing? You are kidding, no? Let them buy a K3/10 and have the incentive for getting a license sitting in front of them. Let Wayne work on firmware and P3's and new ham stuff. 73, Guy. __ 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] Any Consideration of a Receive Only K3?
Couldn't agree more. I suspect a receive only K3 is a non-starter, for a lot of reasons, not the least of which is waning SWBC activity (which is a real shame, although there is still some good stuff out there if you're willing to look for it). Unless you want to just listen to some hoarse and sweaty preacher telling you where you're going to go after you can't go anywhere anymore for hours on end (and why Obama is going to send you there personally) unless you send him (the preacher) a whole lot of unmarked non-sequential $100 bills in a plain brown bag -- or whatever he's collecting in the equivalent of Indulgences these days ;-) Old stories never die -- they're just reinvented by the opportunist du jour. Grant/NQ5T On Mar 9, 2010, at 3:58 PM, Guy Olinger K2AV wrote: Let Wayne work on firmware and P3's and new ham stuff. 73, Guy. __ 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] EQP (Elecraft QSO Party) this weekend -- rules updated
Hector, That is not the only frequency/mode or band. That was just an announcement of a *change* from last years rules. There is a frequency for each band on the website link that was provided - see http://www.elecraft.com/Awards/eqp_2010.htm. 73, Don W3FPR Hector Padron wrote: Why don't you chose a freq for 40M overnight,after 2200Z the 20M band will be closed in our hemisphere but after that hour 40M is open to Europe and Africa easy.Give it a thought. AD4C For a refined ham it is compulsory to own a k3 --- On Tue, 3/9/10, Wayne Burdick n...@elecraft.com wrote: From: Wayne Burdick n...@elecraft.com Subject: [Elecraft] EQP (Elecraft QSO Party) this weekend -- rules updated To: Elecraft Reflector elecraft@mailman.qth.net Cc: QRP-L qr...@mailman.qth.net, elecraft...@yahoogroups.com, elecr...@yahoogroups.com Date: Tuesday, March 9, 2010, 5:11 PM Please join us for the Elecraft QSO party, 1800z March 13 to 1800z March 14. It's open to everyone -- no Elecraft rig required. Complete rules can be found at http://www.elecraft.com/Awards/eqp_2010.htm The object is to have fun, work old and new friends, work new S/P/C's (States/Provinces/Countries), and optionally collect some Elecraft rig serial numbers. You can also work toward an Elecraft WAS or CC award: http://www.elecraft.com/elecraft_awards.htm There's one minor change to the EQP rules this year: The recommended SSB frequency on 20 meters is 14250 +/- kHz. If you have questions about the rules, please send them to n6kr at elecraft dot com. 73, Wayne, N6KR Eric, WA6HHQ __ 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 No virus found in this incoming message. Checked by AVG - www.avg.com Version: 9.0.733 / Virus Database: 271.1.1/2732 - Release Date: 03/09/10 02:33:00 __ 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] [K3]Microphone socket wobble
Hi all, My front microphone connector has always had a fairly significant wobble in it. Partly because of that and partly to get rid of the clutter, I have finally moved my Heil proset and the footswitch to the back. So this is no longer a big deal. Now that the socket is naked I notice that when I rock the outer ring of the connector, the pins inside do not rock with it. I bought the rig assembled, so I haven't personally seen how the connector assembly works. I am guessing that the pins are soldered to the FP board and that the board is not moving anything to speak of. Is the outer sleeve not anchored to the board at all? Is there anything that can be done about this? I am entertaining the idea of having a 2nd mic attached to the front connector, but frankly the wobble does bother me. AB2TC - Knut -- View this message in context: http://n2.nabble.com/K3-Microphone-socket-wobble-tp4705564p4705564.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] [K3]Microphone socket wobble
Don't know if this applies to the K3, but the outer ring on my K2 is loose like that too. I couldn't get the plug far enough into the board to lock it down. I didn't feel like breaking anything so soon as I got it as far as it'd go I soldered 'er in. maybe this is by design for the mic plug? 73, LS W5QD -- View this message in context: http://n2.nabble.com/K3-Microphone-socket-wobble-tp4705564p4705741.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]Microphone socket wobble
Knut, Not to worry, it is just the shell that is moving - If you purchase a bare mic jack, you can see that the plastic assembly to which the pins are mounted are not held rigidly to the shell. If you want to fix it, remove the front panel, scrape away a bit of the solder mask at the base of the mic jack shell, use a soldering iron with a large tip and apply heat until the shell of the jack can melt solder a bit away from the iron loaction, then pool some solder between the mic jack shell and the ground plane of the front panel board. That will not only anchor the shell tightly in place, but will also ground the shield. Most microphones do not use the jack shell for grounding, but there may be some unusual mics with shielded cable that do connect to the shell. If you have one of those unusual ones, then you should definitely ground the mic jack shell. I have been doing that on all K2s that I repair if they have the KSB2 option installed, just in case a customer is using one of those unusual mics. If you wonder whether your microphone connects an overall shield to the shell of the mic plug, check out your mic at G4WPW's website http://homepage.ntlworld.com/rg4wpw/date.html - he has compiled an impressive list of microphone wiring information. 73, Don W3FPR ab2tc wrote: Hi all, My front microphone connector has always had a fairly significant wobble in it. Partly because of that and partly to get rid of the clutter, I have finally moved my Heil proset and the footswitch to the back. So this is no longer a big deal. Now that the socket is naked I notice that when I rock the outer ring of the connector, the pins inside do not rock with it. I bought the rig assembled, so I haven't personally seen how the connector assembly works. I am guessing that the pins are soldered to the FP board and that the board is not moving anything to speak of. Is the outer sleeve not anchored to the board at all? Is there anything that can be done about this? I am entertaining the idea of having a 2nd mic attached to the front connector, but frankly the wobble does bother me. __ 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] Any Consideration of a Receive Only K3?
On Tue, 2010-03-09 at 13:06 -0800, Rick Tavan N6XI wrote: I doubt that a receive-only K3 would cost significantly less than a K3/10. Looking at the schematics, it looks to me like it would save the 12W power amplifier, some $2 relays, the T/R switching circuitry, and several connectors. I doubt if the savings in parts would be enough to pay for the re-engineering involved when amortized over the number of units sold. Unless there are licensing issues in a particular country, an SWL could buy a K3/10 with a sub-receiver and enjoy full diversity reception today. Just be careful not to transmit. I agree. A QRP K3 with suitable options makes a pretty cost-effective high-performance SWL receiver just as it is. Al N1AL /Rick N6XI On 3/9/10, Dave Rickmers ricke...@dslextreme.com wrote: A version minus the 12 Watt exciter would be very easy to implement, would it not? The SWL BCBDXer community is interested. The DSP synchronous detector will be a major attraction for shortwave listeners. __ 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] Serial #4019 is on the air, and I have a few questions...
Hello everyone, I ordered a K3/100 Feb. 22, received it yesterday March 8. I've been messing around with it and now have it on the air in a basic fashion, but I have a few questions regarding how to set it up further. For starters, I got the Proset K2 headset with it. I was under the impression that I could use the microphone/headphone jacks in the rear, but this doesn't seem to be the case. When trying to use the rear jack, even with the mic gain all the way up I can't hear myself in the monitor, and it only outputs around 5W on voice peaks when set at 100W. I've read the manual for both the radio and the headset and am using the settings specified. Also in the manual I saw a reference to changing the voice transmit gain using the CONFIG: TXG VOICE menu setting, but I can't find that setting in the config menu. I eventually gave up and started using the 8-pin adapter for the front mic jack, and now it works, but looks ugly. I would much rather use the rear jack. Second issue is getting the K3 connected to my Drake L-4B amp, specifically the ALC connection. Since I bought the 6 meter preamp I already have the 15-pin ACC connector, and I was going to just attach an ALC lead to that connector. It looks like I need to use pins 15 and 12, correct? Also with the ALC function, in the manual on page 27 it says External ALC is set up using the CONFIG:EXT ALC menu entry. However, like with the CONFIG: TXG VOICE, for the life of me I cannot find that menu entry in either of the menus. Am I missing something or is it simply not there? So those are my two hiccups so far, otherwise I am really enjoying the radio. And if any of you are also using a Drake L-4B with your K3, I'd love to hear any tips/advice/settings I should be aware of. Thanks! -- View this message in context: http://n2.nabble.com/Serial-4019-is-on-the-air-and-I-have-a-few-questions-tp4705986p4705986.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] Any Consideration of a Receive Only K3?
Maybe just a software change to disable transmit for areas where unlicensed persons can't have one. I agree, the cost savings of leaving out the transmit circuitry is not worth the redesign effort. The K3/10 is not outrageously priced compared to other high end SW receivers. Rob NV5E From: n...@cds1.net To: rta...@gmail.com Date: Tue, 9 Mar 2010 15:36:03 -0800 CC: elecraft@mailman.qth.net Subject: Re: [Elecraft] Any Consideration of a Receive Only K3? On Tue, 2010-03-09 at 13:06 -0800, Rick Tavan N6XI wrote: I doubt that a receive-only K3 would cost significantly less than a K3/10. Looking at the schematics, it looks to me like it would save the 12W power amplifier, some $2 relays, the T/R switching circuitry, and several connectors. I doubt if the savings in parts would be enough to pay for the re-engineering involved when amortized over the number of units sold. Unless there are licensing issues in a particular country, an SWL could buy a K3/10 with a sub-receiver and enjoy full diversity reception today. Just be careful not to transmit. I agree. A QRP K3 with suitable options makes a pretty cost-effective high-performance SWL receiver just as it is. Al N1AL /Rick N6XI On 3/9/10, Dave Rickmers ricke...@dslextreme.com wrote: A version minus the 12 Watt exciter would be very easy to implement, would it not? The SWL BCBDXer community is interested. The DSP synchronous detector will be a major attraction for shortwave listeners. __ 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 _ Hotmail: Trusted email with powerful SPAM protection. http://clk.atdmt.com/GBL/go/201469227/direct/01/ __ 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] [K2] single tone test - output seems amplitude-modulated
Hi, my question originates from recent one in this list, but I'd like to put it in into a new thread, to avoid confusions. Intending to do a two-tone test of my K2, I decided to try a 1000 Hz single tone first. On the ocsilloscope on antenna jack I expected a signal much like when holding key down in CW. Instead, I get something like an AM signal. It's modulated with the frequency of the single tone test signal. http://www.mydarc.de/dl2ipu/kpa100/barefoot/AntJack_1_watt_1_tone_1000Hz.jpg AntJack_1_watt_1_tone_1000Hz.jpg To see if it is really the test tone frequency or may be +-50 or 100 Hz, I checked RF board D9 cathode (out detector) and registered 1kHz sine overlayed on DC level. http://www.mydarc.de/dl2ipu/kpa100/barefoot/RF_D9_catode_1_watt_1_tone_1000Hz.jpg RF_D9_catode_1_watt_1_tone_1000Hz.jpg I varied the test tone and cross-checked oscilloscope's time base, it really seems to be the test tone frequency. Emitter of Q8 on control board (ALC) has a constant level. In CW - nice constant amplitude and usual K2's outstanding shaping. I hope somebody can help me explaining the first oscillogram - where is this AM coming from? I did balance the carrier on KSB2 successfully. With mic jack disconnected, RF amplitude is less than 100mV (checked both with the same scope probe and K2's RF probe). Filters were aligned with noise generator and Spectran, lower roll-off freq of FL1 is about 400 Hz. Test conditions: PC as tone generator, K2 power set to 1 watt, CAL probe removed, 40m band, both LSB and USB tried, ALC shows one LED, dummy load on antenna jack, K2 powered from a 12V 7Ah battery. KPA100 removed; KSB2, KNB2 and K160RX are in. 73! Oleg -- View this message in context: http://n2.nabble.com/K2-single-tone-test-output-seems-amplitude-modulated-tp4706101p4706101.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] Any Consideration of a Receive Only K3?
I agree that the hardware savings would be minimal, but yet another firmware option that would be a global TX disable might make somone who wanted to use it as a SWL RX more comfortable. Or would just pulling the PA jumper be enough? That'd disable TX effectively, I think. 73, doug __ 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]Microphone socket wobble
I might want to do that. Is there any truth to the rumor that this can be accessed by removing the left side panel only? I really don't want to got through the front panel disassembly and reassembly. AB2TC - Knut Don Wilhelm-4 wrote: Knut, Not to worry, it is just the shell that is moving - If you purchase a bare mic jack, you can see that the plastic assembly to which the pins are mounted are not held rigidly to the shell. If you want to fix it, remove the front panel, scrape away snip -- View this message in context: http://n2.nabble.com/K3-Microphone-socket-wobble-tp4705564p4706135.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] Fwd: QSO party rules link broken
The correct link is: http://www.elecraft.com/Awards/eqp_2010.htm I just tested it and it works. Oddly, Wayne's looks identical on first blush, but it does not work. The embedded link you get when clicking on it actually has some additional non-printing characters included at the end that make it invalid. Copying the embedded link to my notepad editor shows: http://www.elecraft.com/Awards/eqp_2010.htm%C2%A0%C2%A0%C2%A0 Try the simpler one above :-) 73, Eric WA6HHQ -- *From: *G3TJP g3...@lanks.plus.com mailto:g3...@lanks.plus.com *Date: *March 9, 2010 3:31:56 PM PST *Subject: **QSO party rules link* *Reply-To: *G3TJP g3...@arrl.net mailto:g3...@arrl.net Wayne, the link in your post comes up with webpage cannot be found. 73 DaveL G3TJP http://www.elecraft.com/Awards/eqp_2010.htm http://www.elecraft.com/Awards/eqp_2010.htm%A0%A0%A0 __ 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]Microphone socket wobble
Knut, On the K2, you may access the mic jack by removing only the left side panel,but on the K3, I believe you must remove the front panel assembly to gain access to the base of the mic jack - you do not have to remove the front panel from its metal enclosure, nor do you need to remove the DSP board. If you look at K3_Application_Note_Front_Panel_Microphone_Grounding.pdf on the Elecraft website, you can see how to gain access. Lok carefully at Figure 4 on page 2, and you will see that the microphone jack shell is grounded by a wire in the K3. That wire provides the grounding that I mentioned, however it does not provide mechanical stability for the mic jack shell (which is not important IMHO, but may ba a problem to some other folks). Soldering the shell to the ground plane will provide the lack of wobble that some may desire. 73, Don W3FPR ab2tc wrote: I might want to do that. Is there any truth to the rumor that this can be accessed by removing the left side panel only? I really don't want to got through the front panel disassembly and reassembly. AB2TC - Knut __ 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] single tone test - output seems amplitude-modulated
Hi Oleg, One possible cause for the modulation you see could be a test tone harmonic generated by your PC, or by the K2's audio circuits. If, for example, your PC is generating a 1000 Hz test tone *and* a 2000 Hz harmonic, then the output of the transmitter in SSB mode will be a carrier modulated by a 1000 Hz signal. The output carrier is the 1000 Hz tone translated up to RF, and the 1000 Hz modulation is caused by the 2000 Hz harmonic translated up to RF. Can you look at the output spectrum of your PC when it is generating a 1000 Hz test tone (disconnected from the K2) and measure the level of any harmonics relative to the level of the 1000 Hz tone? 73, Geoff GM4ESD dl0tuh wrote on Wednesday, March 10, 2010 at 12:00 AM: snip I hope somebody can help me explaining the first oscillogram - where is this AM coming from? __ 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] Serial #4019 is on the air, and I have a few questions...
Did you turn bias on for the rear panel mic jack? It sounds like the typical problem when an electret type mic is used and bias is not applied. I would strongly suggest using your amp without any ALC connection. Using external ALC to control the power output only results in distortion and splatter. The K3 has adequate controls on the output power to assure that your amplifier stays within its linear range. 73, Don W3FPR MeLikeyTacos wrote: Hello everyone, I ordered a K3/100 Feb. 22, received it yesterday March 8. I've been messing around with it and now have it on the air in a basic fashion, but I have a few questions regarding how to set it up further. For starters, I got the Proset K2 headset with it. I was under the impression that I could use the microphone/headphone jacks in the rear, but this doesn't seem to be the case. When trying to use the rear jack, even with the mic gain all the way up I can't hear myself in the monitor, and it only outputs around 5W on voice peaks when set at 100W. I've read the manual for both the radio and the headset and am using the settings specified. Also in the manual I saw a reference to changing the voice transmit gain using the CONFIG: TXG VOICE menu setting, but I can't find that setting in the config menu. I eventually gave up and started using the 8-pin adapter for the front mic jack, and now it works, but looks ugly. I would much rather use the rear jack. Second issue is getting the K3 connected to my Drake L-4B amp, specifically the ALC connection. Since I bought the 6 meter preamp I already have the 15-pin ACC connector, and I was going to just attach an ALC lead to that connector. It looks like I need to use pins 15 and 12, correct? Also with the ALC function, in the manual on page 27 it says External ALC is set up using the CONFIG:EXT ALC menu entry. However, like with the CONFIG: TXG VOICE, for the life of me I cannot find that menu entry in either of the menus. Am I missing something or is it simply not there? So those are my two hiccups so far, otherwise I am really enjoying the radio. And if any of you are also using a Drake L-4B with your K3, I'd love to hear any tips/advice/settings I should be aware of. __ 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]Microphone socket wobble
Hello Don, I have been following this tread. I have had my K3 for about two years and the mic socket will turn a little. I said something a year or so ago on line here but never got any feed back. Do you think it a defect, or just needed play and should be well enough left alone. Never had any issues with the mic. Karl N6XVT On Mar 9, 2010, at 5:06 PM, Don Wilhelm wrote: Knut, On the K2, you may access the mic jack by removing only the left side panel,but on the K3, I believe you must remove the front panel assembly to gain access to the base of the mic jack - you do not have to remove the front panel from its metal enclosure, nor do you need to remove the DSP board. If you look at K3_Application_Note_Front_Panel_Microphone_Grounding.pdf on the Elecraft website, you can see how to gain access. Lok carefully at Figure 4 on page 2, and you will see that the microphone jack shell is grounded by a wire in the K3. That wire provides the grounding that I mentioned, however it does not provide mechanical stability for the mic jack shell (which is not important IMHO, but may ba a problem to some other folks). Soldering the shell to the ground plane will provide the lack of wobble that some may desire. 73, Don W3FPR ab2tc wrote: I might want to do that. Is there any truth to the rumor that this can be accessed by removing the left side panel only? I really don't want to got through the front panel disassembly and reassembly. AB2TC - Knut __ 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] [K3]Microphone socket wobble
It certainly is not a problem. All foster type jacks that I have encountered have this condition. The insert holding the pins is not tightly fixed to the shell. If the mic jack shell is secured to the panel and the pins are connected to the PC board with wires, the assembly with the pins will move inside the shell, and no-one complains, they think that is normal. However, when the K2 and K3 front panel boards connect the *pins* of the connector directly to the PC board, then the pins are fixed in position and the shell will move a bit around the pin housing. This is NOT a problem. I have given those who would *believe* it to be a *problem* the solution - solder the shell as well as the pins to the PC board. That will prevent any movement between the jack pin assembly and the shell. BUT - repeat after me - this is not a problem -- this is not a problem If you do fix the shell and the pins together, and subsequently pick up a mic plug that is slightly misaligned, you will not be able to plug it into your mic jack that has been soldered to allow no movement. Take your pick - a soldered and fixed mic jack shell tha may not allow the plugging of a slightly misaligned mic plug, or just leave it as-is, and all mic plugs (even those slightly misaligned) will plug in easily. This is a NON-problem. The solution I gave is only for those who would loose sleep over a slightly wobbly microphone jack shell - it can be made non-wobbly, but it is not important to any operation and does have its down-sides. 73, Don W3FPR KARL MARDERIAN wrote: Hello Don, I have been following this tread. I have had my K3 for about two years and the mic socket will turn a little. I said something a year or so ago on line here but never got any feed back. Do you think it a defect, or just needed play and should be well enough left alone. Never had any issues with the mic. Karl N6XVT On Mar 9, 2010, at 5:06 PM, Don Wilhelm wrote: __ 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] Sub-Audible Tones for the K144XV2
Just got my radio back with the 2 Meter xvrter. Anybody programmed tones for the repeaters in it yet? I don't see how it is done yet... Bruce W8RA __ 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] Serial #4019 is on the air, and I have a few questions...
Thank you all for the replies. For some reason, I am getting several replies via e-mail which aren't shown on the Nabble interface, not sure if that's normal as I'm still getting used to the mailing list. Anyway, when using the rear jack, it will only work with bias off, and is pretty quiet. When using the front jack, it will only work with bias on, and sounds normal. I've enabled Tech Mode and tried using the voice gain, but it didn't change anything. I'll keep using the front jack for now. As for the ALC...typically the ALC function is used to prevent distortion and splatter, why is that the opposite when using the K3? -- View this message in context: http://n2.nabble.com/Serial-4019-is-on-the-air-and-I-have-a-few-questions-tp4705986p4706503.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] Serial #4019 is on the air, and I have a few questions...
You have to work at it to get the message on Nabble. The default Reply is only to the sender. You need to select reply to all to send your replay to Nabble. Willis 'Cookie' Cooke K5EWJ From: MeLikeyTacos jose.point...@gmail.com To: elecraft@mailman.qth.net Sent: Tue, March 9, 2010 7:50:58 PM Subject: Re: [Elecraft] Serial #4019 is on the air, and I have a few questions... Thank you all for the replies. For some reason, I am getting several replies via e-mail which aren't shown on the Nabble interface, not sure if that's normal as I'm still getting used to the mailing list. Anyway, when using the rear jack, it will only work with bias off, and is pretty quiet. When using the front jack, it will only work with bias on, and sounds normal. I've enabled Tech Mode and tried using the voice gain, but it didn't change anything. I'll keep using the front jack for now. As for the ALC...typically the ALC function is used to prevent distortion and splatter, why is that the opposite when using the K3? -- View this message in context: http://n2.nabble.com/Serial-4019-is-on-the-air-and-I-have-a-few-questions-tp4705986p4706503.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 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] Sub-Audible Tones for the K144XV2
Page 29 in the manual... On Tue, 2010-03-09 at 17:43 -0800, bruce whitney wrote: Just got my radio back with the 2 Meter xvrter. Anybody programmed tones for the repeaters in it yet? I don't see how it is done yet... Bruce W8RA __ 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] Serial #4019 is on the air, and I have a few questions...
I don't use Nabble, so I expect others to offer their suggestions on that. As for the microphone, if it needs bias on the front panel, it will need bias on the rear panel too - this is a requirement of the microphone, not the K3. The microphones supplied by Elecraft all require bias to be turned on, regardless whether the front panel jack or the rear panel jacks are used. Internal ALC *inside* a transceiver like the K3 *is* used to reduce distortion and splatter. However, external ALC is quite different. If External ALC is ever active, the amplifier is already being driven into compression and that condition will result in distortion and splatter. I refer you to the commentary on the Elecraft website Builder's Resource page - then click on K3 Application Note and Mods link, and then scroll down to K3 Negative ALC and Ext Band Pull Up Mods. Read the text in italics. 73, Don W3FPR MeLikeyTacos wrote: Thank you all for the replies. For some reason, I am getting several replies via e-mail which aren't shown on the Nabble interface, not sure if that's normal as I'm still getting used to the mailing list. Anyway, when using the rear jack, it will only work with bias off, and is pretty quiet. When using the front jack, it will only work with bias on, and sounds normal. I've enabled Tech Mode and tried using the voice gain, but it didn't change anything. I'll keep using the front jack for now. As for the ALC...typically the ALC function is used to prevent distortion and splatter, why is that the opposite when using the K3? No virus found in this incoming message. Checked by AVG - www.avg.com Version: 9.0.733 / Virus Database: 271.1.1/2732 - Release Date: 03/09/10 02:33:00 __ 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] Sub-Audible Tones for the K144XV2
Look in the Owner's Manual. P29 on Rev D6 OM, lower right. It's harder to find in the OM than to program 73, matt W6NIA On Tue, 09 Mar 2010 17:43:29 -0800 (PST), you wrote: Just got my radio back with the 2 Meter xvrter. Anybody programmed tones for the repeaters in it yet? I don't see how it is done yet... Bruce W8RA __ 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] [K3] K3 USB, Serial Drivers, and HRD Connection
I rarely dip into my Windows laptop but I wanted to check out something with HRD (Ham Radio Deluxe) so I thought I would hook it up to my K3 (I had it configured to work with my Icom 756 Pro III already). So, I chose to do a new connection setup for the K3 after I had setup the serial interface (using the serial/USB cable from Elecraft). I had already run the K3 USB so I figured this should work with HRD. But, problems. I am wondering if HRD can use the driver setup for this serial interface? I first ran HRD and when I did the new connection I had COM3 available but nothing else. I tried with COM3, no good. So, I shutdown HRD and started up K3 USB utility. It listed COM5 (not COM3). I did the connection and port test and all seems to work. I shutdown the K3 USB utility. Started up HRD and no COM5 is available. So, it seems like HRD does not see the ports created by the driver installed (Prolific drivers) for the Elecraft Serial/USB interface. Before I start debugging this problem maybe there is an obvious answer from those who have already done this? Is there something that I am missing? Does anyone successfully use HRD with the Prolific drivers and the Elecraft supplied serial/USB cable? 73, phil, K7PEH __ 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 USB, Serial Drivers, and HRD Connection
There may be a way to tell you prolific drivers to be something else other than com5...say maybe com3? I have a similar setup but with different serial interface and hence different drivers. I had to set the driver to be, in my case, com2 in order for HRD to use it. 73, Dave. K6DCH Sent from my iPhone On Mar 9, 2010, at 5:44 PM, Phil Hystad k7...@comcast.net wrote: I rarely dip into my Windows laptop but I wanted to check out something with HRD (Ham Radio Deluxe) so I thought I would hook it up to my K3 (I had it configured to work with my Icom 756 Pro III already). So, I chose to do a new connection setup for the K3 after I had setup the serial interface (using the serial/USB cable from Elecraft). I had already run the K3 USB so I figured this should work with HRD. But, problems. I am wondering if HRD can use the driver setup for this serial interface? I first ran HRD and when I did the new connection I had COM3 available but nothing else. I tried with COM3, no good. So, I shutdown HRD and started up K3 USB utility. It listed COM5 (not COM3). I did the connection and port test and all seems to work. I shutdown the K3 USB utility. Started up HRD and no COM5 is available. So, it seems like HRD does not see the ports created by the driver installed (Prolific drivers) for the Elecraft Serial/USB interface. Before I start debugging this problem maybe there is an obvious answer from those who have already done this? Is there something that I am missing? Does anyone successfully use HRD with the Prolific drivers and the Elecraft supplied serial/USB cable? 73, phil, K7PEH __ 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] [K3]Microphone socket wobble
Don, Right you are. Some times we K3 owners can be mighty picky and not see the Forrest from the trees. N6XVT. Karl 73 Sent from my iPhone On Mar 9, 2010, at 5:26 PM, Don Wilhelm d...@w3fpr.com wrote: Karl, As I stated, it may seem to be a problem for some folks, but I certainly do not consider it a problem at all. It simply allows a bit of play to accept a slightly misaligned microphone plug. The connector was designed that way. If it were mounted in a panel, the shell would not move, but the pin assembly would be a bit loose - most all microphone jacks I have seen have always been this way. The difference is that in the case of the K2 and K3. the pins are fixed to the board, and the same effect requires that the connector shell move instead of the pins - it is all relative, and definitely not a problem. Some folks just seem to be a bit paranoid about unimportant stuff. 73, Don W3FPR KARL MARDERIAN wrote: Hello Don, I have been following this tread. I have had my K3 for about two years and the mic socket will turn a little. I said something a year or so ago on line here but never got any feed back. Do you think it a defect, or just needed play and should be well enough left alone. Never had any issues with the mic. Karl N6XVT On Mar 9, 2010, at 5:06 PM, Don Wilhelm wrote: Knut, On the K2, you may access the mic jack by removing only the left side panel,but on the K3, I believe you must remove the front panel assembly to gain access to the base of the mic jack - you do not have to remove the front panel from its metal enclosure, nor do you need to remove the DSP board. If you look at K3_Application_Note_Front_Panel_Microphone_Grounding.pdf on the Elecraft website, you can see how to gain access. Lok carefully at Figure 4 on page 2, and you will see that the microphone jack shell is grounded by a wire in the K3. That wire provides the grounding that I mentioned, however it does not provide mechanical stability for the mic jack shell (which is not important IMHO, but may ba a problem to some other folks). Soldering the shell to the ground plane will provide the lack of wobble that some may desire. 73, Don W3FPR ab2tc wrote: I might want to do that. Is there any truth to the rumor that this can be accessed by removing the left side panel only? I really don't want to got through the front panel disassembly and reassembly. AB2TC - Knut __ 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 --- --- -- No virus found in this incoming message. Checked by AVG - www.avg.com Version: 9.0.733 / Virus Database: 271.1.1/2732 - Release Date: 03/09/10 02:33:00 __ 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] K3R
Hi folks, Just had a brain storm. To off set the price of a K3/10. No amp., but include all the boards to make it a general reciever. Also include the 6Kz 8 pole in place of the 2.7Kz 5 pole. The K3/10 is more Hams then SWL. N6XVT. Karl Sent from my iPhone __ 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 USB, Serial Drivers, and HRD Connection
Dave, Thanks for your comments and suggestions but I should not need to change the com port number. I have been scanning the Internet and finding that there is no lack of problems with the prolific drivers and I am thinking I might just go buy some other interface. I am willing to go out and buy another serial/USB interface cable if someone suggests one that will work both with the K3 Utility as well as HRD (I do not need this to run simultaneously though). 73, phil, K7PEH On Mar 9, 2010, at 7:54 PM, David Herring, K6DCH wrote: There may be a way to tell you prolific drivers to be something else other than com5...say maybe com3? I have a similar setup but with different serial interface and hence different drivers. I had to set the driver to be, in my case, com2 in order for HRD to use it. 73, Dave. K6DCH Sent from my iPhone On Mar 9, 2010, at 5:44 PM, Phil Hystad k7...@comcast.net wrote: I rarely dip into my Windows laptop but I wanted to check out something with HRD (Ham Radio Deluxe) so I thought I would hook it up to my K3 (I had it configured to work with my Icom 756 Pro III already). So, I chose to do a new connection setup for the K3 after I had setup the serial interface (using the serial/USB cable from Elecraft). I had already run the K3 USB so I figured this should work with HRD. But, problems. I am wondering if HRD can use the driver setup for this serial interface? I first ran HRD and when I did the new connection I had COM3 available but nothing else. I tried with COM3, no good. So, I shutdown HRD and started up K3 USB utility. It listed COM5 (not COM3). I did the connection and port test and all seems to work. I shutdown the K3 USB utility. Started up HRD and no COM5 is available. So, it seems like HRD does not see the ports created by the driver installed (Prolific drivers) for the Elecraft Serial/USB interface. Before I start debugging this problem maybe there is an obvious answer from those who have already done this? Is there something that I am missing? Does anyone successfully use HRD with the Prolific drivers and the Elecraft supplied serial/USB cable? 73, phil, K7PEH __ 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] Audio dropouts while tuning in K3 SubRX
I checked my K3 and it does not seem to have that problem Willis 'Cookie' Cooke K5EWJ From: Rich - K1HTV k1...@comcast.net To: elecraft@mailman.qth.net Sent: Tue, March 9, 2010 9:14:58 PM Subject: Re: [Elecraft] Audio dropouts while tuning in K3 SubRX I noticed the same short audio dropout on the SubRx only (not the main) while operating the CQ160 SB contest at home and the ARRL DX Phone contest at W3LPL. I don't recall seeing this problem being reported until Brett mentioned it. I noticed the clicks occurring on 160M at the frequency transitions every 5 KHz: 1816.449 to .450 1821.449 1826.449 1831.449 When tuning some freqs above 1900 KHz the spacing changed to 6 KHz: 1937.449 to .450 1943.449 1949.449 1955.449 1961.449 It's not a severe problem but certainly was annoying hearing the clicks when certain freqs were passed while hunting the 160 Meter band for mults. I was using the new Beta firmware. Will check out the previous version when I get a chance to see if it was there and not previously noticed. 73, Rich - K1HTV = = = Date: Sat, 6 Mar 2010 02:24:32 -0800 From: Brett Howard br...@livecomputers.com Subject: [Elecraft] Audio dropouts while tuning in SubRX To: elecraft elecraft@mailman.qth.net Message-ID: fb5179b41003060224o5e45597bi171ffcf084855...@mail.gmail.com Content-Type: text/plain; charset=ISO-8859-1 What is the story behind the audio breaks when tuning in the sub rx... Right now I get a break anytime I tune from and to the following frequencies: 7.060.99 - 7.061 7.069.99 - 7.070 7.078.99 - 7.079 7.085.99 - 7.086 7.086.99 - 7.087 There are more but thats an example of them... Its just a short blank pause in audio whenever I make those transitions (in either direction I hear the pause). ~Brett (KC7OTG) __ 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] [K3] K3 USB, Serial Drivers, and HRD Connection
I have had better luck with adapters that use an FTDI chipset, but the answer isn't that simple. It all depends on OS, proper driver for that OS and possible conflicts with other devices/programs which create virtual serial ports. If you want to try an inexpensive adapter with FTDI chipset, look at byterunner.com. They have a number of choices, and list the chipset brand for each one. 73, Larry N8LP Dave, Thanks for your comments and suggestions but I should not need to change the com port number. I have been scanning the Internet and finding that there is no lack of problems with the prolific drivers and I am thinking I might just go buy some other interface. I am willing to go out and buy another serial/USB interface cable if someone suggests one that will work both with the K3 Utility as well as HRD (I do not need this to run simultaneously though). 73, phil, K7PEH -- View this message in context: http://n2.nabble.com/K3-K3-USB-Serial-Drivers-and-HRD-Connection-tp4706847p4706984.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] K3 SO2R Question
Jim, As a long time SO2R guy (currently a pair of K3s, previously a pair of K2s and originally a pair of IC-765s), I'd save up your money and get the ICE (individual bands or the 401 multiband unit) or K3NQN filters so you won't be saying things like the K3 receiver goes strangely quiet. Those words scare the fire out of me because I'll bet you are on the edge of blowing up your K3's front end. While you are saving up your money, you can build some coax filters that can be teed into your monoband coax (the complexity and expense goes up if you have a multi-band antenna rather than monobander). I'd have to look up the exact construction details, but I know they can be found with minimal Google searching. The idea is to cut a length of coax that, for example, nulls 20M (electrical 1/4 wave open at the end, I think?) and insert that into your 40M line. Same idea for keeping 80M out of 40M. You really don't want to be asking how much power the K3 receiver can handle...just assume it is 50-100 mV and build or buy some filters. You'll be happily SO2R contesting rather than repairing your K3s. I have used the ICE 401 multiband units for several years and have been very happy even when my antenna system consisted of individually fed multi-quad loops. Imagine happily SO2R contesting at 1.5 KW with quad loops only separated by a few feet. Filters work! Also, save up your money and get the KRX3 for your K3s if you want to have dual watch because you will have defeated every SO2R control box and software program I know of if both SO2R rigs are on the same band. Have fun! Bob K5WA Message: 1 Date: Tue, 9 Mar 2010 17:08:42 + From: Jim Harris w...@q.com Subject: Re: [Elecraft] K3 SO2R Question Bob, I live on a postage size lot so big antennas and lots of separation is not possible. I usually run an ALS-500M amp. My initial thought is to run both K3's on the same bands. However, digging out mult's on different bands might be the way to go. The same band idea came from my days with duel watch radio's. It's all a growing and learning experience. I've looked at the ICE filters plus those from other companys. I'm guessing at this point the more isolation (expensive) filters would be better. I've discovered in the last day or so that when signal levels are over about S9+30/40 the K3 receiver goes strangely quiet and no bars on the S-meter are light. It takes from a few seconds to a minute or so to recover. Thank you for your suggestions. CU in the Colorado QSO Party Sept 4th, 2010. 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
Re: [Elecraft] [K3] K3 USB, Serial Drivers, and HRD Connection
I'll chime in here with the fact that I had problems with a couple of USB-serial cable since I am running Win7/X64. I went to www.usbgear.com and found one for $12 that came with Win7/x64 drivers. Seems to be working just fine. Plus, when I sent their tech support a question I had the answer within 1/2 a day. -rick, K7LOG -Original Message- From: elecraft-boun...@mailman.qth.net [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of N8LP Sent: Tuesday, March 09, 2010 8:34 PM To: elecraft@mailman.qth.net Subject: Re: [Elecraft] [K3] K3 USB, Serial Drivers, and HRD Connection I have had better luck with adapters that use an FTDI chipset, but the answer isn't that simple. It all depends on OS, proper driver for that OS and possible conflicts with other devices/programs which create virtual serial ports. If you want to try an inexpensive adapter with FTDI chipset, look at byterunner.com. They have a number of choices, and list the chipset brand for each one. 73, Larry N8LP Dave, Thanks for your comments and suggestions but I should not need to change the com port number. I have been scanning the Internet and finding that there is no lack of problems with the prolific drivers and I am thinking I might just go buy some other interface. I am willing to go out and buy another serial/USB interface cable if someone suggests one that will work both with the K3 Utility as well as HRD (I do not need this to run simultaneously though). 73, phil, K7PEH -- View this message in context: http://n2.nabble.com/K3-K3-USB-Serial-Drivers-and-HRD-Connection-tp4706847p4 706984.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 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
