Re: [Elecraft] Problem with K2 transmit quality
Don Wilhelm wrote: Giulio, Can you please describe the distortion? Also, please say whether the distortion is heard in the sidetone or on a different monitoring receiver. Does all this happen when operating into a dummy load? Or is it only when operating into an antenna? Is this with a hand key? or with paddles? If with paddles, does it happen with a string of dashes? or a string of dots? or both. If you have not cleaned your key contacts, that could be the problem. Put a strip of paper between the key contacts, close the key and extract the paper - that should clean the contacts. I cannot comment on the SSB until the CW is corrected. 73, Don W3FPR Instead of a clean note i have a sound like pr pr :-) it is wide in frequency like when an amplifier is working in a non linear region. I have it on both antenna and dummy load. Not on the side tone, but on a second receiver (Tried on HF and 144 MHz with XV144, same result) I'm using bencher paddles, on both dot and dashes. The K2 is modified with external PTT mod. 73 de Giulio IW3HVB __ 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] Front panel temperature
I raised the issue some time ago of my K3 front panel temperature being much higher after installing the KRX3. At that time Wayne or Eric indicated they would look into a new function of controlling the fan by the front panel temperature as well as by the PA temperature. Any progress or further thoughts on this guys ? Barry VK2BJ __ 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] Width of AM filter
I was going to suggest an LC filter for non-critical work. If Elecraft would supply replacement carrier boards with the pin sockets either mounted or available it would be nice. Inrad has supplied these blank boards at a reasonable price ($10?) in the past for various radios. Barry N1EU (if this message shows up in html format, it's Nabble's fault) -- View this message in context: http://n2.nabble.com/Width-of-AM-filter-tp2540204p2543885.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] Front panel temperature
I have observed the same with my K3. Although I have never calibrated my FP temperature sensor, it was usually hovering around 25 Celsius before installing KRX3. With the subreceiver installed, the FP sensor is now pushing 45C and I can feel top of the radio's front panel being quite warm to the touch. I also had another problem with my K3 (# 789) related to temperature. This one is actually related to K3's ability to handle cold environment. I was operating some of CQ 160 contests this winter from a place with no available heating. The temparature in the shack was around 7 degrees at the begining of the contest. The cold environment caused the K3 to randomly go into TX mode while spinning the VFO knob. The faster I would spin the knob, the RX/TX ratio would increase. I also had to turn off radio pooling from within contest logger (Win-Test) which would also cause K3 to go into Transmit every time PC pools the radio. If I remember correctly, CW keying via RS232 wouldn't work either. Having the temparature in the shack risen above approx 15c , K3 would start working normally. I wonder if anyone else observed this problem? 73, Nick ve3ey - Original Message From: Barry Simpson vk...@optusnet.com.au To: Elecraft@mailman.qth.net Sent: Friday, March 27, 2009 6:14:23 AM Subject: [Elecraft] Front panel temperature I raised the issue some time ago of my K3 front panel temperature being much higher after installing the KRX3. At that time Wayne or Eric indicated they would look into a new function of controlling the fan by the front panel temperature as well as by the PA temperature. Any progress or further thoughts on this guys ? Barry VK2BJ __ 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] Width of AM filter
Last time I looked at one of the filter boards there seemed to be a substantial quantity of componentsnot a simple carrier as in the Inrad boards or those for the Kenwood plug-in filters. The components' function, I think, is to tell the radio that the appropriate filter is installed for the desired (AM or FM) operating mode. As a result, any blank board for one of those operating modes would need to have a certain minimum component population to serve that purpose. It would, as a result, not be a $10.00 (only) board. I trust I will be corrected if I am wrong here. Regards John, N6AX K3 # 567 On Fri Mar 27 4:48 , Barry N1EU sent: I was going to suggest an LC filter for non-critical work. If Elecraft would supply replacement carrier boards with the pin sockets either mounted or available it would be nice. Inrad has supplied these blank boards at a reasonable price ($10?) in the past for various radios. Barry N1EU (if this message shows up in html format, it's Nabble's fault) -- View this message in context: http://n2.nabble.com/Width-of-AM-filter-tp2540204p2543885.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: 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] Problem with K2 transmit quality
Giulio, Do you have anything with a transformer near the K2? Move the K2 at least a meter away from anything with a transformer and try it again. If moving it cures the problem, you may either move the device(s) with transformers or install the VCO Shield Kit in your K2. 73, Don W3FPR Giulio Pico - IW3HVB wrote: Don Wilhelm wrote: Giulio, Can you please describe the distortion? Also, please say whether the distortion is heard in the sidetone or on a different monitoring receiver. Does all this happen when operating into a dummy load? Or is it only when operating into an antenna? Is this with a hand key? or with paddles? If with paddles, does it happen with a string of dashes? or a string of dots? or both. If you have not cleaned your key contacts, that could be the problem. Put a strip of paper between the key contacts, close the key and extract the paper - that should clean the contacts. I cannot comment on the SSB until the CW is corrected. 73, Don W3FPR Instead of a clean note i have a sound like pr pr :-) it is wide in frequency like when an amplifier is working in a non linear region. I have it on both antenna and dummy load. Not on the side tone, but on a second receiver (Tried on HF and 144 MHz with XV144, same result) I'm using bencher paddles, on both dot and dashes. The K2 is modified with external PTT mod. 73 de Giulio IW3HVB __ 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: 8.0.238 / Virus Database: 270.11.29/2024 - Release Date: 03/26/09 07:12:00 __ 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] Width of AM filter
Hoping for a 8 MHz LC filter with a BW of 13 KHz and good mirror rejection is like hoping to run a car with a few AA batteries. A similar idea: the inside of the radio can be hardened by applying 117V to random circuits for a second! I hope I am not stepping on any toes - but I found someone who had designed a 13Khz +/- filter with some toroids and caps - incl variables to adjust and built two and they work great in main KRX3 - just confirmed again they give nice fidelity on AM - and I can hear the 6khz filter click in when I reduce BW to 3... low cost - fair bit of labour :-) 73 John VE3NFK -- View this message in context: http://n2.nabble.com/Width-of-AM-filter-tp2540204p2544152.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] Subjects for filtering
Can we please get back to putting K3, K2, K1 back in the subject lines of the emails being sent? If you own a K3 and you want to post about your K3, no matter what's gone wrong, the first thing in the subject line should be what? That's right, K3! Same applies for the K2 and K1. Thank you. -- R. Kevin Stover, ACØH __ 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] LC Bandpass Filter for AM Reception
When I looked at the feasibility of an LC bandpass IF filter for AM reception a few months ago, I concluded that it was not feasible with practical components. The K3's 2nd IF is 15 KHz, so in order to be effective at removing the image response, the 8215 KHz centered bandpass filter must be, say, 60-80 dB down at 30 KHz from center. In order to achieve 10-15 KHz bandwidth at 8215 KHz, and be 60-80 dB down at 30 KHz from the filter center and to do this with LC components with a reasonable insertion loss requires components with Q values in the tens of thousands. (Typical crystals as employed in crystal filters have motional Q values in the 100,000 range.) Other than using superconducting wire, I could not come up with a design that meets all these requirements. Am I missing something? Jack K8ZOA www.cliftonlaboratories.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] Width of AM filter
Is that hardening voltage AC or DC? :-) (I just *had* to ask - ROTFL). Afterward I would expect the radio to be very hard (of hearing). - Don't try this with your K3! 73, Don W3FPR Ignacy wrote: Hoping for a 8 MHz LC filter with a BW of 13 KHz and good mirror rejection is like hoping to run a car with a few AA batteries. A similar idea: the inside of the radio can be hardened by applying 117V to random circuits for a second! __ 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] LC Bandpass Filter for AM Reception
Jack, About the only way I can foresee to use LC filtering for a 13 to 15 kHz bandwidth would be to take the filter input and downconvert it to something like 455 kHz, run it through an LC filter and upconvert to the K3 IF. Seems like for the size, effort and potential for problems makes the cost of the proper 13 kHz filter inexpensive. For those who don't mind having the same signal appear at 2 frequencies 30 kHz apart, an 8 MHz LC filter might be a solution - just don't complain about strange happenings while using it. 73, Don W3FPR Jack Smith wrote: When I looked at the feasibility of an LC bandpass IF filter for AM reception a few months ago, I concluded that it was not feasible with practical components. The K3's 2nd IF is 15 KHz, so in order to be effective at removing the image response, the 8215 KHz centered bandpass filter must be, say, 60-80 dB down at 30 KHz from center. In order to achieve 10-15 KHz bandwidth at 8215 KHz, and be 60-80 dB down at 30 KHz from the filter center and to do this with LC components with a reasonable insertion loss requires components with Q values in the tens of thousands. (Typical crystals as employed in crystal filters have motional Q values in the 100,000 range.) Other than using superconducting wire, I could not come up with a design that meets all these requirements. Am I missing something? Jack K8ZOA www.cliftonlaboratories.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 No virus found in this incoming message. Checked by AVG - www.avg.com Version: 8.0.238 / Virus Database: 270.11.30/2026 - Release Date: 03/27/09 07:13:00 __ 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 sub rx matched filters
I'm thinking of upgrading my K3 by adding a KRX3 sub receiver. One of the things I want to try in the near future is diversity reception. Now, I think I need a matched pair of filters to operate in diversity mode? Or does this just pertain to the 5 pole filters? Or, if I already have an 8 pole 1.8 filter would I just have to buy another one ? I tried to search the archives and there appears to be no keyword search? Thanks in advance for any help with this 73 Jeff kb2m __ 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 sub rx matched filters
These are good questions and what kind of problems occur when these filters are not matched? Steve Ellington n...@carolina.rr.com - Original Message - From: jeff kb2m k...@comcast.net To: Elecraft@mailman.qth.net Sent: Friday, March 27, 2009 9:41 AM Subject: [Elecraft] K3 sub rx matched filters I'm thinking of upgrading my K3 by adding a KRX3 sub receiver. One of the things I want to try in the near future is diversity reception. Now, I think I need a matched pair of filters to operate in diversity mode? Or does this just pertain to the 5 pole filters? Or, if I already have an 8 pole 1.8 filter would I just have to buy another one ? I tried to search the archives and there appears to be no keyword search? Thanks in advance for any help with this 73 Jeff kb2m __ 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: 8.0.238 / Virus Database: 270.11.30/2026 - Release Date: 03/27/09 07:13:00 __ 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] LC Bandpass Filter for AM Reception
For those who don't mind having the same signal appear at 2 frequencies 30 kHz apart, an 8 MHz LC filter might be a solution - just don't complain about strange happenings while using it. The problem is much worse than that. Why? The K3 is a transceiver. So even if *you* are willing to put up with the image, when you transmit you'll be on two frequencies and others may be less willing to live with the image than you are. 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] Front panel temperature
I think mine is up around 35 to 40 C and no KRX3 yet - I did calibrate it and the KAT3 temp too. -- Power is no substitute for Skill. On 27 Mar 2009, at 11:22, Nick Lekic wrote: I have observed the same with my K3. Although I have never calibrated my FP temperature sensor, it was usually hovering around 25 Celsius before installing KRX3. With the subreceiver installed, the FP sensor is now pushing 45C and I can feel top of the radio's front panel being quite warm to the touch. I also had another problem with my K3 (# 789) related to temperature. This one is actually related to K3's ability to handle cold environment. I was operating some of CQ 160 contests this winter from a place with no available heating. The temparature in the shack was around 7 degrees at the begining of the contest. The cold environment caused the K3 to randomly go into TX mode while spinning the VFO knob. The faster I would spin the knob, the RX/TX ratio would increase. I also had to turn off radio pooling from within contest logger (Win- Test) which would also cause K3 to go into Transmit every time PC pools the radio. If I remember correctly, CW keying via RS232 wouldn't work either. Having the temparature in the shack risen above approx 15c , K3 would start working normally. I wonder if anyone else observed this problem? 73, Nick ve3ey - Original Message From: Barry Simpson vk...@optusnet.com.au To: Elecraft@mailman.qth.net Sent: Friday, March 27, 2009 6:14:23 AM Subject: [Elecraft] Front panel temperature I raised the issue some time ago of my K3 front panel temperature being much higher after installing the KRX3. At that time Wayne or Eric indicated they would look into a new function of controlling the fan by the front panel temperature as well as by the PA temperature. Any progress or further thoughts on this guys ? Barry VK2BJ __ 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 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 sub rx matched filters
Jeff, The filter offsets should be set the same for diversity reception, and for that to happen most easily, the filters can be matched. You may notice a wush, wush sound if the offsets are different. But being practical, the *difference* between the actual offsets of the filters will be within tens of Hz, and for a wide filter (1.8 kHz or 2.7 kHz), setting the K3 offset values to the average of the two filters will work fine. OTOH, with narrow filters such as those used for CW, the two offsets must be closely matched because the difference in the offsets is a larger percentage of the filter width, and requires matched filters. It is the difference between the offsets that matters, not the actual offset value. Supposedly, the 8 pole filters do not have to be matched (they do not have offset numbers associated with them), but in practice, they may have a small offset and some ''tweaking of the offset values may be required to eliminate the wush, wush sound when using diversity. 73, Don W3FPR jeff kb2m wrote: I'm thinking of upgrading my K3 by adding a KRX3 sub receiver. One of the things I want to try in the near future is diversity reception. Now, I think I need a matched pair of filters to operate in diversity mode? Or does this just pertain to the 5 pole filters? Or, if I already have an 8 pole 1.8 filter would I just have to buy another one ? I tried to search the archives and there appears to be no keyword search? Thanks in advance for any help with this 73 Jeff kb2m __ 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] Width of AM filter
Er, no, or we wouldn't have to configure the filters by mode manually (or use the K3 utility). A glance at the filter schematic for the KFL3A reveals only filter components. Bob NW8L On Fri, Mar 27, 2009 at 6:08 AM, n...@speakeasy.net wrote: Last time I looked at one of the filter boards there seemed to be a substantial quantity of componentsnot a simple carrier as in the Inrad boards or those for the Kenwood plug-in filters. The components' function, I think, is to tell the radio that the appropriate filter is installed for the desired (AM or FM) operating mode. As a result, any blank board for one of those operating modes would need to have a certain minimum component population to serve that purpose. It would, as a result, not be a $10.00 (only) board. I trust I will be corrected if I am wrong here. Regards John, N6AX K3 # 567 __ 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] LC Bandpass Filter for AM Reception
Don: Yes, that would work although if one is going to that degree of effort, you might also fit a Collins mechanical filter as an option instead of 455 KHz LC filters. It would also require some careful work with the mixers to avoid degrading the K3's IP3 with two extra mixers, and also shielding to reduce the prospect of birdies from the oscillator. I think it would also be challenging to fit it all into the space occupied by a standard K3 crystal filter. Jack Don Wilhelm wrote: Jack, About the only way I can foresee to use LC filtering for a 13 to 15 kHz bandwidth would be to take the filter input and downconvert it to something like 455 kHz, run it through an LC filter and upconvert to the K3 IF. Seems like for the size, effort and potential for problems makes the cost of the proper 13 kHz filter inexpensive. For those who don't mind having the same signal appear at 2 frequencies 30 kHz apart, an 8 MHz LC filter might be a solution - just don't complain about strange happenings while using it. 73, Don W3FPR Jack Smith wrote: When I looked at the feasibility of an LC bandpass IF filter for AM reception a few months ago, I concluded that it was not feasible with practical components. The K3's 2nd IF is 15 KHz, so in order to be effective at removing the image response, the 8215 KHz centered bandpass filter must be, say, 60-80 dB down at 30 KHz from center. In order to achieve 10-15 KHz bandwidth at 8215 KHz, and be 60-80 dB down at 30 KHz from the filter center and to do this with LC components with a reasonable insertion loss requires components with Q values in the tens of thousands. (Typical crystals as employed in crystal filters have motional Q values in the 100,000 range.) Other than using superconducting wire, I could not come up with a design that meets all these requirements. Am I missing something? Jack K8ZOA www.cliftonlaboratories.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 No virus found in this incoming message. Checked by AVG - www.avg.com Version: 8.0.238 / Virus Database: 270.11.30/2026 - Release Date: 03/27/09 07:13:00 __ 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
Re: [Elecraft] Width of AM filter
For those who wish to listen AM/SW broadcast, researching the Reflector is required to find out that the FM filter is the way to go. I suggest an addition to the 13 kHz filter product description, and other discussions of filter choice, to say that it is also recommended for full-bandwidth AM reception. That will help prevent people from ordering the AM filter on the wrong assumption. Windy KM5Q __ 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 sub rx matched filters
About this wush, wush soundDoes this wushing occur as you tune across stations when in diversity mode or does it just set there and constantly wush wush? Can't you adjust the compensation for these filters in the menu? I don't understand why this happens. I had an IC-7800 and played with diversity recption. Of course there were no physical filter options but there was no wushing sounds either. Steve Ellington n...@carolina.rr.com - Original Message - From: Don Wilhelm w3...@embarqmail.com To: jeff kb2m k...@comcast.net Cc: Elecraft@mailman.qth.net Sent: Friday, March 27, 2009 10:23 AM Subject: Re: [Elecraft] K3 sub rx matched filters Jeff, The filter offsets should be set the same for diversity reception, and for that to happen most easily, the filters can be matched. You may notice a wush, wush sound if the offsets are different. But being practical, the *difference* between the actual offsets of the filters will be within tens of Hz, and for a wide filter (1.8 kHz or 2.7 kHz), setting the K3 offset values to the average of the two filters will work fine. OTOH, with narrow filters such as those used for CW, the two offsets must be closely matched because the difference in the offsets is a larger percentage of the filter width, and requires matched filters. It is the difference between the offsets that matters, not the actual offset value. Supposedly, the 8 pole filters do not have to be matched (they do not have offset numbers associated with them), but in practice, they may have a small offset and some ''tweaking of the offset values may be required to eliminate the wush, wush sound when using diversity. 73, Don W3FPR jeff kb2m wrote: I'm thinking of upgrading my K3 by adding a KRX3 sub receiver. One of the things I want to try in the near future is diversity reception. Now, I think I need a matched pair of filters to operate in diversity mode? Or does this just pertain to the 5 pole filters? Or, if I already have an 8 pole 1.8 filter would I just have to buy another one ? I tried to search the archives and there appears to be no keyword search? Thanks in advance for any help with this 73 Jeff kb2m __ 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: 8.0.238 / Virus Database: 270.11.30/2026 - Release Date: 03/27/09 07:13:00 __ 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] N2CQ QRP Contest Calendar: Mar 28 - Apr 27, 2009
~ N2CQ QRP CONTEST CALENDAR March 28 - April 27, 2009 ~ CQ World-Wide WPX Contest (SSB) ... QRP Category Mar 28, z to Mar 29, 2359z Rules: http://www.cqwpx.com/index.htm ~ MQFD Monthly Sprint (CW/PH/Digital) *** QRP Contest *** Mar 28, 1800z to 2200z Rules: http://w2agn.net/mqfdsprint.html ~ LZOCC 40m CW Sprint ... QRP Category Apr 4, z to 0400z Rules: http://www.lzopen.com/lzocc40/indexF.htm ~ QRP ARCI Spring QSO Party (CW) ..QRP Contest!!! Apr 4, 1200z to Apr 5, 2359z Rules: http://www.qrparci.org ~ SP DX Contest (CW/SSB) ... QRP Category Apr 4, 1500z to Apr 5, 1500z Rules: http://www.spdxcontest.info/reg/spdxc_g.pdf ~ EA RTTY Contest Apr 4, 1600z to Apr 5, 1600z Rules: http://www.ure.es/contest/430-ea-rtty-contest.html ~ Missouri QSO Party (ALL) Apr 4, 1800z to Apr 5, 0500z Apr 5, 1800z to Apr 5, 2400z Rules: http://www.qsl.net/w0ma/contests.htm ~ Adventure Radio Spartan Sprint (CW) ... QRP Event! EDT: Apr 6, 9 PM to 11 PM (First Monday each month) UTC: Apr 7, 0100z to 0300z Info: http://arsqrp.pbwiki.com:80/Spartan+Sprints ~ PSK Flavors Contest ... QRP Category Apr 11, 12:00 to 18:00 YOUR LOCAL TIME Rules: http://www.podxs070.com/ ~ Georgia QSO Party (CW/SSB) ... QRP Category Apr 11, 1800z to Apr 12, 0359z Apr 12, 1400z to Apr 12, 2359z Rules: http://gqp.contesting.com ~ SKCC Weekend Sprintathon (Straight Key CW) ... QRP Category Apr 12, z to 2359z Rules: http://www.skccgroup.com/sprint/wes/ ~ ?UBA Spring Sprint (80m SSB) ... QRP Entries Noted Apr 12, 0600z to 1000z Rules: http://www.uba.be/hf_contests/calendar_en.html# ~ ?Low Power Spring Sprint (CW) ... QRP Category Apr 13, 1400z to 2000z Rules: http://www.sk3bg.se/contest/pdf/lpsprspr.pdf ~ NAQCC Straight Key/Bug Sprint (CW) *** QRP Contest *** EDT: Apr 14, 8:30 PM to 10:30 PM UTC: Apr 15, 0030Z to 0230Z Rules: http://www.arm-tek.net/~yoel/contests.html ~ ?The HOLYLAND DX CONTEST (CW/SSB) ... QRP Category Apr 18, z to 2359z Rules: http://www.iarc.org/ ~ TARA Skirmish Digital Prefix Contest ... QRP Category Apr 18, z to 2359z Rules: http://www.n2ty.org/seasons/tara_seasons.html ~ Michigan QSO Party (CW/SSB) ...QRP Category Apr 18, 1600z to Apr 19, 0400z Rules: http://www.miqp.org/ ~ EA-QRP Contest (CW) ... QRP Contest! Apr 18, 1700z to 2000z (10, 15 20 Mtrs) Apr 18, 2000z to 2300z (80 Mtrs) Apr 19, 0700z to 1100z (40 Mtrs) Apr 19, 1100z to 1300z (10, 15 20 Mtrs) Rules: http://www.eaqrp.com/concurso/test_eaqrp_cw-en.htm ~ Ontario QSO Party (CW/SSB) ... QRP Category Apr 18, 1800z to Apr 19, 0500z Apr 19, 1200z to Apr 19, 1800z Rules: http://cco.ve3xd.com/oqp/ ~ ?YU DX Contest (CW) ... QRP Category Apr 18, 2100z to Apr 20, 0500z and Apr 19, 0900z to 1700z Rules: http://yudx.net/ ~ RUN FOR THE BACON (CW) *** QRP CONTEST *** EDT: Apr 19, 9 PM to 11 PM UTC: Apr 20, 0100z 0300z Rules: http://www.fpqrp.com/ ~ SKCC Sprint (Straight Key CW) ... QRP Awards Apr 22, z to 0200z Rules: http://www.skccgroup.com/sprint/sks/ ~ MQFD Monthly Sprint (CW/PH/Digital) *** QRP Contest *** Apr 25, 1800z to 2200z Rules: http://w2agn.net/mqfdsprint.html ~ SP DX RTTY Contest Apr 25, 1200z to Apr 26, 1200z Rules: http://www.pkrvg.org/zbior.html ~ Florida QSO Party (CW/Phone) ...QRP Category Apr 25, 1600z to Apr 26, 0159z and Apr 26, 1200z to 2159z Rules: http://www.floridaqsoparty.org/ ~ Nebraska QSO Party (CW/SSB/Digital) ... QRP Category Apr 25, 1700z
Re: [Elecraft] K3 remote
Terry said: ...Some day, rig manufacturers will just put Ethernet in the rigs and we will have native control! I have been thinking about this for a while. What an opportunity for Elecraft to upgrade the K3 when they release a stand-alone (no PC attached) band scope. Wouldn't it be great if that add-on device provided both a USB and internet port to the K3... Mike Scott Tarzana, 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
[Elecraft] K3 Signal blocking inside of the crystal filter BW
Hi All, I recently purchased a brand new K3 and after a factory tuneup, it is a very nice radio. I discovered a situation using it that I would like to mitigate. When trying to work a station simplex in a pileup I experienced receiver blocking. While trying to listen to the DX station others were calling so I narrowed the passband down to 200hz. I was unable to copy the weaker station very well because the louder stations were retarding the AGC. This blocking is common to AF DSP radios like a IC746 but I would have not expected it to occur on the K3. I have owned a IC7800 for 5 years and even though the lab tests show it to be not as good as the K3 I have never experienced blocking inside of the selected passband like I have seen on my K3. I found if the DSP is set the same as the 400Hz crystal filter ,I have 8 pole, the blocking does not occur. But larger signals inside of the crystal filter BW makes copy hard. Is there a way to fix this? Perhaps a setup value change or something. I purchased this radio to take on DXpeditions. At this point I not sure if I could reduce the BW using the DSP inside of the 400Hz filter without problems. Thanks in advance, Dave Anderson, K4SV Tryon, NC 828 777-5088 www.K4SV.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: Digital Signals on 20M
For the past several days I have been seeing a couple of powerful digital signals, S9+, between 14.018 to 14.032MHz. They seem to be comprised of 4 or 5 discrete frequencies rapidly moving around in a bandwidth of about 2Khz. When working with a narrow filter it is possible to work through them, with difficulty. With a wide filter, 2.8KHz set to the center of their bandwidth it sounds like a group of castanets clicking away with slightly different tones. I might have just discounted them but for the fact that I have just recently gotten a poor man's panadapter using a Rockmite and Z1 amp from Clifton Labs with the Rocky software monitoring my K3's IF output. These two signals have been here every time I get on 20M and are quite impressive in the amount of bandwidth they occupy. I have not seen this on any other band. Forgive my ignorance of digital modes, but I just don't recall hearing this sort of signal before. Can anyone let me know what this might be? Ken, NU4I __ 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: Digital Signals on 20M
It's peaking at 10 over here at a heading of 130 degrees from SE Michigan. Dave, K8AA - Original Message - From: Kenneth Moorman n...@cox.net To: Elecraft@mailman.qth.net Sent: Friday, March 27, 2009 11:44 AM Subject: [Elecraft] OT: Digital Signals on 20M For the past several days I have been seeing a couple of powerful digital signals, S9+, between 14.018 to 14.032MHz. They seem to be comprised of 4 or 5 discrete frequencies rapidly moving around in a bandwidth of about 2Khz. When working with a narrow filter it is possible to work through them, with difficulty. With a wide filter, 2.8KHz set to the center of their bandwidth it sounds like a group of castanets clicking away with slightly different tones. I might have just discounted them but for the fact that I have just recently gotten a poor man's panadapter using a Rockmite and Z1 amp from Clifton Labs with the Rocky software monitoring my K3's IF output. These two signals have been here every time I get on 20M and are quite impressive in the amount of bandwidth they occupy. I have not seen this on any other band. Forgive my ignorance of digital modes, but I just don't recall hearing this sort of signal before. Can anyone let me know what this might be? Ken, NU4I __ 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: 8.5.285 / Virus Database: 270.11.30/2026 - Release Date: 03/27/09 07:13:00 __ 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 sub rx matched filters
Don Wilhelm wrote: Supposedly, the 8 pole filters do not have to be matched (they do not have offset numbers associated with them), but in practice, they may have a small offset and some ''tweaking of the offset values may be required to eliminate the wush, wush sound when using diversity. For what it's worth, I have only a 2.8 kHz filter in my KRX3, and 2.8, 1.0 and 0.4 kHz filters in my main receiver. Offsets are 0. I use diversity a lot and haven't had any problems. Normally I have the bandwidth adjusted to 400 Hz or less when trying to work weak CW signals. I often find that intelligibility is improved with diversity (on 40 meters I use a dipole as the main antenna and a vertical as the second rx antenna). It's hard to describe, but the signal seems to stand out better. It might be due to the reduction in QSB gained by polarization diversity, or something else, having to do with noise. I'm not sure. On 160 I use a 200' wire thrown on the ground as the second rx antenna (main is a vertical). There is some improvement, but nothing like 40. On 20, I have a 4-el tribander at 40'. It is *always* better than the vertical by many dB, so I don't bother with diversity. -- 73, Vic, K2VCO Fresno CA http://www.qsl.net/k2vco __ 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: Digital Signals on 20M
I've heard, in the last couple of days, that the ARRL Intruder Watch is looking into this. ~Iain / N6ML Dave Larson wrote: It's peaking at 10 over here at a heading of 130 degrees from SE Michigan. Dave, K8AA - Original Message - From: Kenneth Moorman n...@cox.net To: Elecraft@mailman.qth.net Sent: Friday, March 27, 2009 11:44 AM Subject: [Elecraft] OT: Digital Signals on 20M For the past several days I have been seeing a couple of powerful digital signals, S9+, between 14.018 to 14.032MHz. They seem to be comprised of 4 or 5 discrete frequencies rapidly moving around in a bandwidth of about 2Khz. When working with a narrow filter it is possible to work through them, with difficulty. With a wide filter, 2.8KHz set to the center of their bandwidth it sounds like a group of castanets clicking away with slightly different tones. I might have just discounted them but for the fact that I have just recently gotten a poor man's panadapter using a Rockmite and Z1 amp from Clifton Labs with the Rocky software monitoring my K3's IF output. These two signals have been here every time I get on 20M and are quite impressive in the amount of bandwidth they occupy. I have not seen this on any other band. Forgive my ignorance of digital modes, but I just don't recall hearing this sort of signal before. Can anyone let me know what this might be? Ken, NU4I __ 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: 8.5.285 / Virus Database: 270.11.30/2026 - Release Date: 03/27/09 07:13:00 __ 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
Re: [Elecraft] Problem with K2 transmit quality
Don Wilhelm wrote: Giulio, Do you have anything with a transformer near the K2? Move the K2 at least a meter away from anything with a transformer and try it again. If moving it cures the problem, you may either move the device(s) with transformers or install the VCO Shield Kit in your K2. 73, Don W3FPR That was my idea too, but I have no transformers (switching ps and everything else at 1 mt or more and switched off) and the VCO shielding is already in place.. Is the tune carrier generated at the same manner of the CW note? 73 de Giulio IW3HVB __ 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: Digital Signals on 20M
I've heard these signals for years on 18080 kHz and up. Perhaps 17M prop is so poor they moved to 20M. There are at times now three distinct stations on 20M CW. They are wider than my 2.7KHz filter. Spectrogram shows they are composed of more than 8 tones, spaced about 200 Hz apart. I seem to hear two stations on each frequency, one strong and one weak -- indicating some kind of linked communications. Turning the beam shows peaks on EU and SA from NC. The K3 noise blanketer (DSP only t3-7) and narrow filters do a really good job of digging out CW signals under them. 73 de Brian/K3KO Iain MacDonnell - N6ML wrote: I've heard, in the last couple of days, that the ARRL Intruder Watch is looking into this. ~Iain / N6ML Dave Larson wrote: It's peaking at 10 over here at a heading of 130 degrees from SE Michigan. Dave, K8AA - Original Message - From: Kenneth Moorman n...@cox.net To: Elecraft@mailman.qth.net Sent: Friday, March 27, 2009 11:44 AM Subject: [Elecraft] OT: Digital Signals on 20M For the past several days I have been seeing a couple of powerful digital signals, S9+, between 14.018 to 14.032MHz. They seem to be comprised of 4 or 5 discrete frequencies rapidly moving around in a bandwidth of about 2Khz. When working with a narrow filter it is possible to work through them, with difficulty. With a wide filter, 2.8KHz set to the center of their bandwidth it sounds like a group of castanets clicking away with slightly different tones. I might have just discounted them but for the fact that I have just recently gotten a poor man's panadapter using a Rockmite and Z1 amp from Clifton Labs with the Rocky software monitoring my K3's IF output. These two signals have been here every time I get on 20M and are quite impressive in the amount of bandwidth they occupy. I have not seen this on any other band. Forgive my ignorance of digital modes, but I just don't recall hearing this sort of signal before. Can anyone let me know what this might be? Ken, NU4I __ 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: 8.5.285 / Virus Database: 270.11.30/2026 - Release Date: 03/27/09 07:13:00 __ 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 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: Digital Signals on 20M
I've been monitoring these signals for a few days now. They seem to run for long periods without a break, although I have heard a few times when they stopped for a few seconds. I've always seen them in pairs spaced about 15kHz apart. I don't have the bandwidth to be able to tell if the pairs are related but I kind of suspect they are. Each signal seems to consist of two groups of tones with the groups spaced about 1.5kHz apart. Each group consists of 8 tones, each about 100Hz apart. The tones alternate between the groups (i.e. one tone from group A, followed by one tone from group B). Each tone seems to be on for about 10mS with a gap of about 34mS between tones. They're never extremely strong here in southern Oregon, maybe S5 or S7. I've also heard them on 40m. 73 -- Joe KB8AP On Mar 27, 2009, at 8:44 AM, Kenneth Moorman wrote: For the past several days I have been seeing a couple of powerful digital signals, S9+, between 14.018 to 14.032MHz. They seem to be comprised of 4 or 5 discrete frequencies rapidly moving around in a bandwidth of about 2Khz. When working with a narrow filter it is possible to work through them, with difficulty. With a wide filter, 2.8KHz set to the center of their bandwidth it sounds like a group of castanets clicking away with slightly different tones. I might have just discounted them but for the fact that I have just recently gotten a poor man's panadapter using a Rockmite and Z1 amp from Clifton Labs with the Rocky software monitoring my K3's IF output. These two signals have been here every time I get on 20M and are quite impressive in the amount of bandwidth they occupy. I have not seen this on any other band. Forgive my ignorance of digital modes, but I just don't recall hearing this sort of signal before. Can anyone let me know what this might be? Ken, NU4I __ 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 Signal blocking inside of the crystal filter BW
I'm sure the Elecraft crew will respond to your post, but here are my recommendations. Load the latest beta firmware and try the settings below, in my order of preference. In all cases, the most important setting is to keep the RF Gain turned down as low as possible, allowing you to just barely hear the weakest signals clearly. A 200 Hz filter may help a little, but not much if you are dealing with a pileup of closely-spaced signals. 1. AGC=OFF AF LIM=nor 030 Headphones plugged into speaker jack (to avoid tripping the K3's ugly AF limiter) AF gain at about 10 o'clock (or whatever it takes to protect your ears on the loudest signals) 2. (uses new AGC HLD and AGC DCY=soft functions) AGC=SLOW AGC DCY=SOFT AGC HLD=0.2 AGC PLS=NOR AGC SLP=0 AGC THR=008 AGC-F=200 AGC-S=20 3. (uses new AGC DCY=SOFT function) Same as 2 above, except AGC=FAST Dave Hachadorian, K6LL Yuma, AZ - Original Message - From: Dave Anderson, K4SV davek...@yahoo.com To: Elecraft@mailman.qth.net Sent: Friday, March 27, 2009 3:43 PM Subject: [Elecraft] K3 Signal blocking inside of the crystal filter BW Hi All, I recently purchased a brand new K3 and after a factory tuneup, it is a very nice radio. I discovered a situation using it that I would like to mitigate. When trying to work a station simplex in a pileup I experienced receiver blocking. While trying to listen to the DX station others were calling so I narrowed the passband down to 200hz. I was unable to copy the weaker station very well because the louder stations were retarding the AGC. This blocking is common to AF DSP radios like a IC746 but I would have not expected it to occur on the K3. I have owned a IC7800 for 5 years and even though the lab tests show it to be not as good as the K3 I have never experienced blocking inside of the selected passband like I have seen on my K3. I found if the DSP is set the same as the 400Hz crystal filter ,I have 8 pole, the blocking does not occur. But larger signals inside of the crystal filter BW makes copy hard. Is there a way to fix this? Perhaps a setup value change or something. I purchased this radio to take on DXpeditions. At this point I not sure if I could reduce the BW using the DSP inside of the 400Hz filter without problems. Thanks in advance, Dave Anderson, K4SV Tryon, NC 828 777-5088 www.K4SV.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] OT: Digital Signals on 20M
I hear them S9+ at 270 degrees from South Central PA. Although I'm not sure how directional my beam (Force 12/C3) is. Interesting. Mike, N3XPD It's peaking at 10 over here at a heading of 130 degrees from SE Michigan. Dave, K8AA - Original Message - From: Kenneth Moorman n...@cox.net To: Elecraft@mailman.qth.net Sent: Friday, March 27, 2009 11:44 AM Subject: [Elecraft] OT: Digital Signals on 20M For the past several days I have been seeing a couple of powerful digital signals, S9+, between 14.018 to 14.032MHz. They seem to be comprised of 4 or 5 discrete frequencies rapidly moving around in a bandwidth of about 2Khz. When working with a narrow filter it is possible to work through them, with difficulty. With a wide filter, 2.8KHz set to the center of their bandwidth it sounds like a group of castanets clicking away with slightly different tones. I might have just discounted them but for the fact that I have just recently gotten a poor man's panadapter using a Rockmite and Z1 amp from Clifton Labs with the Rocky software monitoring my K3's IF output. These two signals have been here every time I get on 20M and are quite impressive in the amount of bandwidth they occupy. I have not seen this on any other band. Forgive my ignorance of digital modes, but I just don't recall hearing this sort of signal before. Can anyone let me know what this might be? Ken, NU4I __ 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: 8.5.285 / Virus Database: 270.11.30/2026 - Release Date: 03/27/09 07:13:00 __ 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 -- View this message in context: http://n2.nabble.com/OT%3A--Digital-Signals-on-20M-tp2544943p2545356.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] Problem with K2 transmit quality
Giulio, As far as the transmit path is concerned, TUNE is exactly the same as CW. The activation path through the microprocessor is different. You might try setting the keying input to HAND and using only the dot side of the paddles to see if there is some problem with the keying algorithms inside the microprocessor chip. Do you have an older K2 that has not been upgraded. Check the value of RF Board R1 and R2 (near the key jack). They should be 220 ohms. Remove the left side panel to see the resistors easily. If it does not happen in TUNE as well as CW, it is most likely in the keying circuit somewhere - and that is an all digital path until it reaches the Control Board U8 (this is a DAC) output for the VPWR signal - but then the TUNE also uses this same output. I wish I could help more, but you are posing a 'mystery' situation. It is possible that you have had a failure of some strange kind inside the firmware chip, but that is a rare occurrance. You could try a Master Reset, but if you do, write down all your menu settings including the filter settings because that reset will put them all back to the default values. 73, Don W3FPR Giulio Pico - IW3HVB wrote: Don Wilhelm wrote: Giulio, Do you have anything with a transformer near the K2? Move the K2 at least a meter away from anything with a transformer and try it again. If moving it cures the problem, you may either move the device(s) with transformers or install the VCO Shield Kit in your K2. 73, Don W3FPR That was my idea too, but I have no transformers (switching ps and everything else at 1 mt or more and switched off) and the VCO shielding is already in place.. Is the tune carrier generated at the same manner of the CW note? 73 de Giulio IW3HVB __ 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] Mics and the K3
Hi all, I'd like to compile of list of microphones folks are using with the K3. If you have a minute and would like to contribute to the project, please reply to me with: Mic model: Element type: (electret, condenser, dynamic etc) Bias used? Yes or no K3 Mic Sel configuration: L or H Thanks, Fred KE7X Fred Cady fcady at ieee dot org This email and any files transmitted with it are confidential and intended solely for the use of the individual or entity to whom they are addressed. If you have received this email in error please notify the system manager. This message contains confidential information and is intended only for the individual named. If you are not the named addressee you should not disseminate, distribute or copy this e-mail. __ 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 remote
I would be first in line to buy one. That's for sure! Don K7FJ I have been thinking about this for a while. What an opportunity for Elecraft to upgrade the K3 when they release a stand-alone (no PC attached) band scope. Wouldn't it be great if that add-on device provided both a USB and internet port to the K3... Mike Scott __ 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] Mics and the K3
I find that with the equalization I can make any mike sound good with K3. A $15 computer headset or a $20 Best Buy hand mike need lots of equalization. Heil HC4 sounds good as is. One of the great features of K3 beside the equalizers is ability to use computer microphones/headsets without any extra connectors. Try doing it with any other radio... Ignacy Hi all, I'd like to compile of list of microphones folks are using with the K3. If you have a minute and would like to contribute to the project, please reply to me with: Mic model: Element type: (electret, condenser, dynamic etc) Bias used? Yes or no K3 Mic Sel configuration: L or H Thanks, Fred KE7X Fred Cady fcady at ieee dot org This email and any files transmitted with it are confidential and intended solely for the use of the individual or entity to whom they are addressed. If you have received this email in error please notify the system manager. This message contains confidential information and is intended only for the individual named. If you are not the named addressee you should not disseminate, distribute or copy this e-mail. __ 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 -- View this message in context: http://n2.nabble.com/Mics-and-the-K3-tp2545416p2545534.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] KX1 carry cases
The response to my question about interest in KX1 cases has been surprising. I've received only two, and one of the two is using a digital camera bag. I have a KX1 that is loaned by a owner who wants a case, and I'm thinking of something utilizing a K1 case with a protective internal pocket for his KX1, leaving room for extra stuff. I'm still interested in comments from KX1 owners, however. 73! Rose elecraftcov...@rfwave.net http://tinyurl.com/7lm3m5 __ 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] Mics and the K3
On Fri, 27 Mar 2009 10:18:39 -0700 (PDT), Ignacy wrote: I find that with the equalization I can make any mike sound good with K3. A $15 computer headset or a $20 Best Buy hand mike need lots of equalization. Heil HC4 sounds good as is. Not ANY mic, but most mics. Professional condensers, including professional electret condensers, are NOT suitable for use with ANY ham rig, including the K3, because it is WAY too complicated (and expensive) to provide phantom power. See http://audiosystemsgroup.com/HamInterfacing.pdf and the Appendix on audio in http://audiosystemsgroup.com/RFI-Ham.pdf One of the great features of K3 beside the equalizers is ability to use computer microphones/headsets without any extra connectors. YES. 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] OT: Digital Signals on 20M
-Original Message- From: Kenneth Moorman [mailto:n...@cox.net] Sent: Friday, March 27, 2009 1:59 PM To: 'N3XPD' Subject: RE: [Elecraft] OT: Digital Signals on 20M I don't have a beam, but it looks like it could possibly be coming from eastern part of Ohio based on these two bits of dataand it is not so strong in Oregon as it seems to be here in coastal Virginia, which seems to be consistent. Ken, NU4I -Original Message- From: elecraft-boun...@mailman.qth.net [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of N3XPD Sent: Friday, March 27, 2009 12:48 PM To: elecraft@mailman.qth.net Subject: Re: [Elecraft] OT: Digital Signals on 20M I hear them S9+ at 270 degrees from South Central PA. Although I'm not sure how directional my beam (Force 12/C3) is. Interesting. Mike, N3XPD It's peaking at 10 over here at a heading of 130 degrees from SE Michigan. Dave, K8AA - Original Message - From: Kenneth Moorman n...@cox.net To: Elecraft@mailman.qth.net Sent: Friday, March 27, 2009 11:44 AM Subject: [Elecraft] OT: Digital Signals on 20M For the past several days I have been seeing a couple of powerful digital signals, S9+, between 14.018 to 14.032MHz. They seem to be comprised of 4 or 5 discrete frequencies rapidly moving around in a bandwidth of about 2Khz. When working with a narrow filter it is possible to work through them, with difficulty. With a wide filter, 2.8KHz set to the center of their bandwidth it sounds like a group of castanets clicking away with slightly different tones. I might have just discounted them but for the fact that I have just recently gotten a poor man's panadapter using a Rockmite and Z1 amp from Clifton Labs with the Rocky software monitoring my K3's IF output. These two signals have been here every time I get on 20M and are quite impressive in the amount of bandwidth they occupy. I have not seen this on any other band. Forgive my ignorance of digital modes, but I just don't recall hearing this sort of signal before. Can anyone let me know what this might be? Ken, NU4I __ 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: 8.5.285 / Virus Database: 270.11.30/2026 - Release Date: 03/27/09 07:13:00 __ 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 -- View this message in context: http://n2.nabble.com/OT%3A--Digital-Signals-on-20M-tp2544943p2545356.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
Re: [Elecraft] OT: Digital Signals on 20M
For the past several days I have been seeing a couple of powerful digital signals, S9+, between 14.018 to 14.032MHz. They seem to be comprised of 4 or 5 discrete frequencies rapidly moving around in a bandwidth of about 2Khz. Can anyone let me know what this might be? The latest IARU Region 1 Monitoring System report published yesterday mentions it as a Chinese FSK8 ALE net. 73, Markus -- View this message in context: http://n2.nabble.com/OT%3A--Digital-Signals-on-20M-tp2544943p2545850.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] FOR SALE in UK-New K3 Modular Kit plus accessorie
New K3 Modular Kit received in September 2008 but un-built and still in original Elecraft packing due to family and other commitments: K3/100-100watt transceiver modular kit KAT3 - K3 ATU modular kit KBPF3-K3 General Coverage RX Module KFL3A-K3 2.8 kHz 8 pole filter KXVC-K3 Transceiver Interface KUSB- K3 Universal Serial Bus Adapter PROSET-K3-R-Heil Boom Headset with Mic Full details of all the above available on Elecraft web site-www.elecraft.com For sale, at substantial saving, including cost of insured delivery to any UK address, for £1550.00 with payment via PayPal. Please contact off-list at al...@manx.net With kind regards Allen GD7LAV __ 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 Signal blocking inside of the crystal filter BW
Hello Dave! When trying to work a station simplex in a pileup I experienced receiver blocking. While trying to listen to the DX station others were calling so I narrowed the passband down to 200hz. I was unable to copy the weaker station very well because the louder stations were retarding the AGC... I found if the DSP is set the same as the 400Hz crystal filter, I have 8 pole, the blocking does not occur. The basic design of the K3 is to make use of the 1st IF crystal filter to narrow the in-band bandwidth to be consistent with the modulation method in use. This is why the K3 can accommodate such a wide range of roofing filters and with so many bandwidth options. The great numbers the K3 has in terms of narrow-spaced dynamic range (see for example URL:http://www.sherweng.com/table.html are due to the use of narrow roofing filters. To maximize the in-band dynamic range, the sensitivity floor of the radio should be set to just below the current band/antenna noise floor. On most bands, the ATTN can be used, adding about 10 dB to the level before which the hardware AGC activates. Most bands do not require the use of the PREamplifier, getting another potential gain of 10 dB or so. 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] OT: Digital Signals on 20M
My beam pattern may not be as good as usual because the tower is cranked down (storm last night), but from my QTH in Arizona the beam heading right now seems to be about 120 degrees, which might put the location in the West Indies, Venezuela or Brazil. 73, Erik K7TV I don't have a beam, but it looks like it could possibly be coming from eastern part of Ohio based on these two bits of dataand it is not so strong in Oregon as it seems to be here in coastal Virginia, which seems to be consistent. Ken, NU4I __ 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: Digital Signals on 20M
That is consistent with my beam heading of 120, assuming I am receiving China long path. 73, Erik K7TV The latest IARU Region 1 Monitoring System report published yesterday mentions it as a Chinese FSK8 ALE net. 73, Markus __ 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] Mics and the K3
Hi Gary, Heck yeah, I'll post the info for everybody. Fred Fred Cady fcady at ieee dot org From: Gary Hvizdak [mailto:garyhviz...@cfl.rr.com] Sent: Friday, March 27, 2009 11:06 AM To: Cady, Fred Cc: fc...@iee.org Subject: RE: [Elecraft] Mics and the K3 Hi Fred, My K3 is only halfway assembled, so I cannot yet report anything of substance to you. --- - - - --- However, I do want to ask you a question. What do you intend to do with this information? Will it be published on the web and maintained/updated for the benefit of the entire Elecraft K3 user community? Or will it be for your personal use only? FYI, these are questions that others might be interested in knowing the answers to as well. TNX 73, Gary KI4GGX Cady, Fred Fri Mar 27 12:57:00 EDT 2009 Hi all, I'd like to compile of list of microphones folks are using with the K3. If you have a minute and would like to contribute to the project, please reply to me with: Mic model: Element type: (electret, condenser, dynamic etc) Bias used? Yes or no K3 Mic Sel configuration: L or H Thanks, Fred KE7X Fred Cady fcady at ieee dot org This email and any files transmitted with it are confidential and intended solely for the use of the individual or entity to whom they are addressed. If you have received this email in error please notify the system manager. This message contains confidential information and is intended only for the individual named. If you are not the named addressee you should not disseminate, distribute or copy this e-mail. __ 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 Beta firmware Rev. 3.04: AGC fixed; various improvements
Hi Wayne, Another minor quirk to report regarding the cross band A/B switching. If the B VFO is on another band, pressing the A-B button causes a minor pause in the audio. No relays clicking but a definite pause in the audio. No big deal at all, but when A and B are on the same band, this does not occur. Knut - AB2TC wayne burdick (via Nabble) wrote: Guess I forgot that it didn't work right before :) Have fun-- Wayne N6KR ab2tc wrote: I just made the upgrade to 3.04 after a long period of skipping upgrades. I am very happy to report that the A/B VFO switch now works across bands *without* having the sub-receiver. I am not sure why Elecraft has been so reluctant to announce this... --- http://www.elecraft.com __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:elecr...@... http://n2.nabble.com/user/SendEmail.jtp?type=nodenode=2541524i=0 This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html This email is a reply to your post @ http://n2.nabble.com/K3-Beta-firmware-Rev.-3.04%3A-AGC-fixed--various-improvements-tp2540723p2541524.html You can reply by email or by visting the link above. No virus found in this incoming message. Checked by AVG - www.avg.com Version: 8.0.238 / Virus Database: 270.11.29/2024 - Release Date: 03/26/09 07:12:00 - AB2TC - Knut -- View this message in context: http://n2.nabble.com/K3-Beta-firmware-Rev.-3.04%3A-AGC-fixed--various-improvements-tp2540723p2546950.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] KX1 PA Upgrade!
Having finished my KX1 spring tune-up I took Don Wilhelm's suggestion of trying the new PA rather than tweaking toroids for a minuscule amount of power increase. Here are the results as shown by the KX1 (DISP:BAT) at 12VDC (my battery for backpacking) and 13.9VDC (in the shack for maximum power). 12V Before After 80 2.63.0 40 2.32.6 30 2.33.8 20 2.22.5 13.9 80 4.04.4 40 3.33.8 30 4.35.2 20 2.93.4 I am aware that over four is a danger zone so I will be doing further research. Certainly removing the resistor mod power comes into consideration. For right now, since I only operate in the field with my 12VDC battery, I am quite happy with my setup. Hope to see you all soon on the air QRP! Jack Regan, AE6GC __ 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 Signal blocking inside of the crystal filter BW- Eplog
Thanks to all who replied, I will give some of the suggestions a try. Best 73 Dave Anderson, K4SV Tryon, NC 828 777-5088 www.K4SV.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 Firmware 3.03 Beta AGC Settings
I used my K3 with 3.03 Beta during the Russian DX Contest last weekend. During the contest, I had the opportunity to play around with the AGC settings in the beta firmware 3.03, and what seemed optimal to me is right in line with what Dave K6LL recommended. First Choice: AGC Off, RF gain between 10AM and 2PM, depending on incoming signal strength. This provided the cleanest reception of all signals. While strong signals did occasionally blast me out, I was still able to hear very weak signals with no problems. Using the RF gain control, I was also able to thin out most pile-ups, then bring up the RF gain to work the weaker signals in the pile-up. I spent a lot of time last weekend operating on 14.007 and 7.008. Second Choice: AGC Fast with the following AGC parameters set: AGC DCY: Soft AGC Hld:.30 AGC PLS: Off AGC SLP:0 AGC THR: 8 AGC F : 120 AGC S : 20 The new firmware AGC settings were almost as good as AGC Off, but not quite, and these settings did not reduce the need to turn the RF Gain down. On the same frequencies above, turning the AGC to Fast would raise the background noise level and IMD level just a tad; signals were not quite as clean as with AGC off, but it was a definite improvement over firmware 2.82. For the casual op, these settings would probably work well. I also agree with Dave that the most important thing is to keep the RF gain control down. That's a good rule of thumb for any radio, not just the K3. Dennis W1UE __ 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 Firmware 3.03 Beta AGC Settings - feature request
The observations remind me of my battles with the Orion AGC. Orion had AGC-F AGC-S and AGC-Prog All three allowed you to set your own parameters and the AGC-Prog (Programmable) gave you the option of a custom AGC setting for contests or whatever. K3 doesn't have that flexibility and has no Programmable AGC setting.How about a Programmable AGC setting and the ability to set up your own AGC-S and AGC-F settings? BTW - Orion never did get it right in my humble opinion. Buck k4ia k3#101 In a message dated 3/27/2009 8:56:47 P.M. Eastern Daylight Time, egan.denni...@gmail.com writes: I used my K3 with 3.03 Beta during the Russian DX Contest last weekend. During the contest, I had the opportunity to play around with the AGC settings in the beta firmware 3.03, and what seemed optimal to me is right in line with what Dave K6LL recommended. First Choice: AGC Off, RF gain between 10AM and 2PM, depending on incoming signal strength. This provided the cleanest reception of all signals. While strong signals did occasionally blast me out, I was still able to hear very weak signals with no problems. Using the RF gain control, I was also able to thin out most pile-ups, then bring up the RF gain to work the weaker signals in the pile-up. I spent a lot of time last weekend operating on 14.007 and 7.008. Second Choice: AGC Fast with the following AGC parameters set: AGC DCY: Soft AGC Hld:.30 AGC PLS: Off AGC SLP:0 AGC THR:8 AGC F : 120 AGC S : 20 The new firmware AGC settings were almost as good as AGC Off, but not quite, and these settings did not reduce the need to turn the RF Gain down. On the same frequencies above, turning the AGC to Fast would raise the background noise level and IMD level just a tad; signals were not quite as clean as with AGC off, but it was a definite improvement over firmware 2.82. For the casual op, these settings would probably work well. I also agree with Dave that the most important thing is to keep the RF gain control down. That's a good rule of thumb for any radio, not just the K3. Dennis W1UE __ 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 **Check all of your email inboxes from anywhere on the web. Try the new Email Toolbar now! (http://toolbar.aol.com/mail/download.html?ncid=txtlnkusdown0027) __ 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 sidetone volume Request
Having to engage the sidetone (steady tone) in order to adjust the level is annoying. Example: When using headphones, I have to crank up the sidetone to about 40. If I unplug the headphones and hit the key, the sidetone almost blast me off my chair. Wakes up the XYL too! Most rigs let you simply turn a knob and adjust the sidetone level without the tone running and they also let you adjust volume while you are sending. The whole pitch, spot, mon thing needs to be revisited. Here's what I would prefer For CW mode: The mon level is the default. It simply controls the sidetone volume and can be adjusted while sending (no steady tone). For SSB: Don't care. It just seems natural and logical to be able to adjust my sidetone without the controls being disable by hitting the key or another knob and to be adjustable on the fly Let's assume I'm in the middle of a CW QSO and I suddenly need to put on my headphones due to QSB or XYL. I'm sending along, plug in the headphones and suddenly my sidetone is way down below the noise level..To increase the gain, I push the PWR button in and the sidetone is now a continuous toneNot good...can't hear the other guyTap the key and sidetone goes off and now I can adjust. Hey...that's what I wanted all along. Why not just make it the default for CW mode? If I want a steady tone, I'll push the Spot button. Woops, can't do that because it disables my mon volume adjustment. This is weird. I guess as a CW op, the sidetone volume adjustment is far more important than PWR. At least make it a menu item. Thanks for reading. 73 N4LQ Steve Ellington n...@carolina.rr.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 sidetone volume Request
Hi Steve, FWIW I'm a CW only guy and use phones and speaker about equally. I fiddled with the sidetone level a few times when I first put my K3 (S/N 56) on the air, and haven't touched it since. I -think- my hearing is normal, and the level is set at 30. I just tried both ways of listening with attention paid to level, and I don't hear any difference. I wonder if there's some issue with the phones you're using? I tried your level and yes, that level is LOUD. Have you tried a different pair? I have both a Heil HS and a pair of lightweight RS phones and both produce the same level. 73! Ken Kopp - K0PP __ 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 Firmware 3.03 Beta AGC Settings - feature request
K3 doesn't have that flexibility and has no Programmable AGC setting. How about a Programmable AGC setting and the ability to set up your own AGC-S and AGC-F settings? AGC settings are programmable through the menu on the K3.I have already programmed my PF keys to allow for NOR/SOFT AGC and hang time. My F and S settings are nowhere near the factory defaults. Both are programmed as slow as possible through the menu. OTOH, I could see where someone might want multiple choices by selection of the numerical keypad. One possibility would be to utilize the 0-9 keys to select one of up to 10 saved AGC settings per mode. For example, within 2 seconds of selecting S or F, the user could then press keys 0-9 to recall a saved AGC setting. If no 0-9 key is entered after the F-S toggle, it simply goes to the last value entered (or to the default value in the alternative). Oh sure, easy for me to say. I have no idea how much time would be burned up by Lyle and Wayne on this idea. But at least on the surface, it seems viable. Paul, W9AC __ 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 sidetone volume Request
Ken Different headphones require different sidetone level. I use QSK 100%. Band noise conditions dictate various ST levels too. I'm always messing with it. I like it loud so it overrides the background noise. When the XYL is asleep, I turn it down. I can't imagine leaving it set at 30 all the time but that's a personal preference. I just want to be able to change it on the fly and not have to put up with steady tones, holding in buttons and having it dysfunction when I hit some other key. I suppose I've always been picky about sidetone quality. I used to modify old TenTec rigs which had this horrible sawtooth sidetone. Click and thumps annoy me. The K3's sidetone is great. 73 N4LQ Steve Ellington n...@carolina.rr.com - Original Message - From: Ken Kopp k...@rfwave.net To: Steve Ellington n...@carolina.rr.com; elecraft@mailman.qth.net Sent: Friday, March 27, 2009 10:29 PM Subject: [Elecraft] K3 sidetone volume Request Hi Steve, FWIW I'm a CW only guy and use phones and speaker about equally. I fiddled with the sidetone level a few times when I first put my K3 (S/N 56) on the air, and haven't touched it since. I -think- my hearing is normal, and the level is set at 30. I just tried both ways of listening with attention paid to level, and I don't hear any difference. I wonder if there's some issue with the phones you're using? I tried your level and yes, that level is LOUD. Have you tried a different pair? I have both a Heil HS and a pair of lightweight RS phones and both produce the same level. 73! Ken Kopp - K0PP No virus found in this incoming message. Checked by AVG - www.avg.com Version: 8.0.238 / Virus Database: 270.11.30/2026 - Release Date: 03/27/09 07:13:00 __ 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 sidetone volume Request
For CW mode: The mon level is the default. It simply controls the sidetone volume and can be adjusted while sending (no steady tone). Good idea. I've also become accustomed to CW side-tone that tracks with the AF volume control. In doing so, the MON control still sets the side-tone to Rx audio mix ratio. Perhaps another option one day... Pau, W9AC __ 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] Elecraft K3 Error Message
On 20 meters, I get the following error message:ERR TXF. The manual indicates that the crystal filter selected for TX is either too narrow or too wide, and states the one must specify a filter that is 2.7 or 2.8 KHz for ...SSB. My K3 only has two filters: the 5 pole 2.8 that came standard and an additional filter recommended for SSB, an 8 pole, numbered 2.7, I believe. In a effort to correct this, I brought up the configure crystal Filters in the K3 Utility and then proceeded to enter 2.7 or 2.8 and vice versa, applied the changes, but as soon as I try to TX in 20 meters the ERR TXF message reappears. Can anyone straighten me out on this? Bill Wade, Ai4PF __ 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 3.04 Power Output After Tune
I updated the firmware to 3.04 last night. Today, after I tune, I get no or low power out indicated on the RF meter in SSB. Keying down momentarily restores power in SSB. Are others experiencing this? Jim W6VAR K3 1644 -- View this message in context: http://n2.nabble.com/K3-3.04-Power-Output-After-Tune-tp2547892p2547892.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] [K3] K3 3.04 Power Output After Tune
I updated the firmware to 3.04 last night. Today, after I tune, I get no or low power out indicated on the RF meter in SSB. Keying down momentarily restores power in SSB. Are others experiencing this? Jim W6VAR K3 1644 -- View this message in context: http://n2.nabble.com/K3-3.04-Power-Output-After-Tune-tp2547895p2547895.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] K3 3.04 Power Output After Tune
Jim - W6VAR wrote: I updated the firmware to 3.04 last night. Today, after I tune, I get no or low power out indicated on the RF meter in SSB. Keying down momentarily restores power in SSB. Are others experiencing this? Yes, I've had the same problem, especially when operating split on 40 meters. Gus Hansen KB0YH __ 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] [KX1]External Speaker ?
Try your local drugstore in the MP3 accessory section. You'll probably find an external speaker with a stereo plug on it, like this one: http://wa5znu.org/log/2007/05/kx1-speaker.html They're $5 or so and run on one AA. Leigh/WA5ZNU __ 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 Error Message
Hi All: Pleased to say that I made some necessary adjustment, and the problem has gone away...Phew!! Thanks one all. Bill Wade, Ai4pf __ 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
