Re: [Elecraft] KAT100 Problem
Don, I had been trying that to no avail. I drew up a a table with the data for all the capacitors. After that, I decided to pull out an LDG-100pro to see what would happened. Much to my surprise, I found out that I had been barking up the wrong tree. The LDG responds the same way. Both the KAT100 and the LDG fold back to 10 watts when tuning on 20 meters, regardless of whether I am using the antenna or the dummy load. The problem is obviously in the radio, not the tuner. It threw me for a loop because all the other bands tune up just fine. I never would have guessed the problem was in the K2/100. If I can't figure it out in the next couple of days, I'll just have to leave it for next fall when I return to Florida with decent test equipment. I have been sitting around waiting for some physicians to approve my departure. If I had known this a couple of weeks ago, I would have had plenty of time to work on it. I really like the K2. In many respects, I like it better tha n my K3 and KX3, as it fits better with my "CW back to basics" personality. Any new suggestions? 73, Dick -Original Message- From: Don Wilhelm To: richardjwiltgen Cc: elecraft Sent: Sun, Jul 7, 2013 10:38 pm Subject: Re: [Elecraft] KAT100 Problem Dick, I figure you are using a multiband antenna. It may be presenting a very ow or very high impedance to the KAT100 on 20 meters. The solution is o add or subtract about 1/8 wavelength of feedline to the antenna ystem. On 20 meters, that would be about 8 feet of feedline. Of course, that may transfer the problem to another band, but keep rying, you will eventually be able to get it to tune properly on all bands. 73, on W3FPR On 7/7/2013 8:09 PM, richardjwilt...@aol.com wrote: Don, Thanks for your prompt response. Yes, I reduced everything to its bare inimum and tested it on a dry dummy load. I am sorry; I should have stated hat. I also used about different jumper cables to connect to the dummy load, ll yielding the same results on both 20 and 40. I also tested 10 and 80. It ent off scale with much sooner on 10 meters as I progressed through the apacitors, but there didn't seem to be any dramatic change on 80. The results ith the dummy load almost precisely mirror those experienced with the antenna n 20 meters. I was just using it with the antenna on 30 and 17 with excellent esults. It loads the antenna beautifully on all bands 10 through 160, with the xception of 20. I will check the capacitors again on 30 meters later this vening. Unfortunately, I do not have a capacity meter. I am in Florida with he bare minimum of test equipment and scheduled to follow the snow birds north his week. i'lllet you know what results I find on 30 me ters. __ 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] RTTY setup
I'm trying to help a new K3 owner set up for RTTY using MMTTY and AFSK A. I have a Mac, he's running Win XP. I added a USB sound card (mic and fones) and stereo cables in and out. Win recognizes it, and I chose it in MMTTY and Win. Mark and space agree. Vox is on, and the vox settings should be OK. Tones are being generated. Levels are mid range in WIn volume controls. No transmit and no decode, just the random garbage from noise. Offline replies may be best, I can see this getting long. 73, Mike NF4L __ 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] KAT100 Problem
Dick, I figure you are using a multiband antenna. It may be presenting a very low or very high impedance to the KAT100 on 20 meters. The solution is to add or subtract about 1/8 wavelength of feedline to the antenna system. On 20 meters, that would be about 8 feet of feedline. Of course, that may transfer the problem to another band, but keep trying, you will eventually be able to get it to tune properly on all bands. 73, Don W3FPR On 7/7/2013 8:09 PM, richardjwilt...@aol.com wrote: Don, Thanks for your prompt response. Yes, I reduced everything to its bare minimum and tested it on a dry dummy load. I am sorry; I should have stated that. I also used about different jumper cables to connect to the dummy load, all yielding the same results on both 20 and 40. I also tested 10 and 80. It went off scale with much sooner on 10 meters as I progressed through the capacitors, but there didn't seem to be any dramatic change on 80. The results with the dummy load almost precisely mirror those experienced with the antenna on 20 meters. I was just using it with the antenna on 30 and 17 with excellent results. It loads the antenna beautifully on all bands 10 through 160, with the exception of 20. I will check the capacitors again on 30 meters later this evening. Unfortunately, I do not have a capacity meter. I am in Florida with the bare minimum of test equipment and scheduled to follow the snow birds north this week. i'lllet you know what results I find on 30 me ters. __ 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] KX3 stuck in synchronous AM
Every time I enter a frequency and then cycle through the modes instead of AM it comes up "AM S" with "LSB" even though it appears to be only a distorted version of AM. I know synchronous AM is not available on the KX3 and the KX3 isn't working like my K3's synchronous AM. If I recall any frequency from memory the mode cycling is normal. Any Ideas on how to clear this problem. I have tried reloading current & old versions of software. John Hendricks K7JLT __ 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] KAT100 Problem
I'm wondering, kinda thinking in the blind, if there might be a coil not making contact, either a lead at the solder point, or a relay contact not good any more..??? Have a great day, Dale - WC7S -Original Message- From: richardjwilt...@aol.com Date: Mon, 8 Jul 2013 00:09:05 To: Cc: Subject: Re: [Elecraft] KAT100 Problem Don, Thanks for your prompt response. Yes, I reduced everything to its bare minimum and tested it on a dry dummy load. I am sorry; I should have stated that. I also used about different jumper cables to connect to the dummy load, all yielding the same results on both 20 and 40. I also tested 10 and 80. It went off scale with much sooner on 10 meters as I progressed through the capacitors, but there didn't seem to be any dramatic change on 80. The results with the dummy load almost precisely mirror those experienced with the antenna on 20 meters. I was just using it with the antenna on 30 and 17 with excellent results. It loads the antenna beautifully on all bands 10 through 160, with the exception of 20. I will check the capacitors again on 30 meters later this evening. Unfortunately, I do not have a capacity meter. I am in Florida with the bare minimum of test equipment and scheduled to follow the snow birds north this week. i'lllet you know what results I find on 30 me ters. 73, Dick -Original Message- From: Don Wilhelm To: richardjwiltgen Cc: elecraft Sent: Sun, Jul 7, 2013 7:45 pm Subject: Re: [Elecraft] KAT100 Problem Dick, Are you doing the component tests (C5 to C6 for example) into a dummy load or into your antenna. Trying that test into an antenna just adds a lot of other unknowns into the formula - use a dummy load. Not only that, check the dummy load and the coax going to it - if you have an antenna analyzer, put it on the end of the coax that you are connecting to the KAT100 and see what the impedance is - it should be 50 ohms resistive and zero ohms reactive (or very close). Bad coax is a frequently overlooked problem spot as are PL-259 connectors that are not fully tightened. In other words, reduce the system to its bare essentials when doing any tests. With the known good dummy load and coax, now try the manual instructions again. If you get the same results on 20 meters, drop down to 40 meters and try the same test. Often the switch between one capacitor and another will cause the SWR to 'go offscale' on a higher frequency, but be just fine at a lower frequency. The jump in capacity between C5 and C6 is quite large - C5 is 150 pF while C6 is 300 pF, and that is a LOT on 20 meters. Your results when dropping down to 40 meters seem to be in line with reality. There is an alternative test (not in the manual) that you can do if you have a capacity meter. Connect the capacity meter between the center conductor and the shell of the input jack. With C0 selected, zero the meter (or record the stray capacitance shown), then cycle through the C1 thru C8. The capacitance should approximately double with each step upward in Cx. If you are not using a capacity meter that has a zero capability, subtract the capacitance measured at C0 from the reading at the other capacitors to arrive at the real capacitance value that the KAT100 is connecting. Yes, your RF-in-the-shack can be confusing things a lot. 73, Don W3FPR On 7/7/2013 7:06 PM, richardjwilt...@aol.com wrote: > I have encountered difficulty with the KAT100. I am pretty sure the problem resulted from RF feedback in the shack from a Zero-Five flagpole antenna with an unun at its base, an ugly balun with Polyphaser ground after 80 feet of coax prior to entry into the shack, and a Balun Designs isolation balun following the 20 feet or so of coax that enters the shack. The isolation balun is inside the shack for stealth reasons because of a very intrusive HOA. Thae KAT100 would not tune the antenna or a dry dummy load on 20 meters. It will indicate a high SWR and the K2 registers a hot power amplifier. If I run it for a while, the RF gets into the radio and the other bands may be affected. As a consequence, I will eventually move the isolation balun between the KAT100 and the K2/100 and place another one on the line that leads into the shack. I tested the components as stipulated in the manual. When I switch from C5 to C6, the SWR jumps from 2.5 to off scale (9.9) on 20 meters and > 1.4 to 7.0 on 40 meters. Based on the knowledge and past experience of others, does it seem reasonable to assume that C6 is defective and the cause of the problem? Many thanks beforehand for any advice you folks have to offer. Vy 73, Dick, K8RBW. > __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:El
Re: [Elecraft] [K3]
Powerwerx.com can supply you with the adapter cable. http://www.powerwerx.com/adapter-cables/ Mine is kind of short (5-6") but does the job nicely. Ham Radio Outlet also carries them. http://www.hamradio.com/detail.cfm?pid=H0-009646 Powerwerx Google: HF6SOC-PP ... HF 6 PIN FEMALE SOCKET TO ANDERSON POLE JUMPER On Sun, Jul 7, 2013 at 10:04 AM, Mike Reublin wrote: > Somewhere I saw an adapter (or complete cable) to allow an ICOM PS-125 > power supply to power the K3. > > Anybody remember? > > 73, Mike NF4L > __ > 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 > -- 73, William (Bill) Rogers / W3UL Annapolis, Maryland U.S.A. __ 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] KAT100 Problem
Don, Thanks for your prompt response. Yes, I reduced everything to its bare minimum and tested it on a dry dummy load. I am sorry; I should have stated that. I also used about different jumper cables to connect to the dummy load, all yielding the same results on both 20 and 40. I also tested 10 and 80. It went off scale with much sooner on 10 meters as I progressed through the capacitors, but there didn't seem to be any dramatic change on 80. The results with the dummy load almost precisely mirror those experienced with the antenna on 20 meters. I was just using it with the antenna on 30 and 17 with excellent results. It loads the antenna beautifully on all bands 10 through 160, with the exception of 20. I will check the capacitors again on 30 meters later this evening. Unfortunately, I do not have a capacity meter. I am in Florida with the bare minimum of test equipment and scheduled to follow the snow birds north this week. i'lllet you know what results I find on 30 me ters. 73, Dick -Original Message- From: Don Wilhelm To: richardjwiltgen Cc: elecraft Sent: Sun, Jul 7, 2013 7:45 pm Subject: Re: [Elecraft] KAT100 Problem Dick, Are you doing the component tests (C5 to C6 for example) into a dummy load or into your antenna. Trying that test into an antenna just adds a lot of other unknowns into the formula - use a dummy load. Not only that, check the dummy load and the coax going to it - if you have an antenna analyzer, put it on the end of the coax that you are connecting to the KAT100 and see what the impedance is - it should be 50 ohms resistive and zero ohms reactive (or very close). Bad coax is a frequently overlooked problem spot as are PL-259 connectors that are not fully tightened. In other words, reduce the system to its bare essentials when doing any tests. With the known good dummy load and coax, now try the manual instructions again. If you get the same results on 20 meters, drop down to 40 meters and try the same test. Often the switch between one capacitor and another will cause the SWR to 'go offscale' on a higher frequency, but be just fine at a lower frequency. The jump in capacity between C5 and C6 is quite large - C5 is 150 pF while C6 is 300 pF, and that is a LOT on 20 meters. Your results when dropping down to 40 meters seem to be in line with reality. There is an alternative test (not in the manual) that you can do if you have a capacity meter. Connect the capacity meter between the center conductor and the shell of the input jack. With C0 selected, zero the meter (or record the stray capacitance shown), then cycle through the C1 thru C8. The capacitance should approximately double with each step upward in Cx. If you are not using a capacity meter that has a zero capability, subtract the capacitance measured at C0 from the reading at the other capacitors to arrive at the real capacitance value that the KAT100 is connecting. Yes, your RF-in-the-shack can be confusing things a lot. 73, Don W3FPR On 7/7/2013 7:06 PM, richardjwilt...@aol.com wrote: > I have encountered difficulty with the KAT100. I am pretty sure the problem resulted from RF feedback in the shack from a Zero-Five flagpole antenna with an unun at its base, an ugly balun with Polyphaser ground after 80 feet of coax prior to entry into the shack, and a Balun Designs isolation balun following the 20 feet or so of coax that enters the shack. The isolation balun is inside the shack for stealth reasons because of a very intrusive HOA. Thae KAT100 would not tune the antenna or a dry dummy load on 20 meters. It will indicate a high SWR and the K2 registers a hot power amplifier. If I run it for a while, the RF gets into the radio and the other bands may be affected. As a consequence, I will eventually move the isolation balun between the KAT100 and the K2/100 and place another one on the line that leads into the shack. I tested the components as stipulated in the manual. When I switch from C5 to C6, the SWR jumps from 2.5 to off scale (9.9) on 20 meters and > 1.4 to 7.0 on 40 meters. Based on the knowledge and past experience of others, does it seem reasonable to assume that C6 is defective and the cause of the problem? Many thanks beforehand for any advice you folks have to offer. Vy 73, Dick, K8RBW. > __ 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] KX3 High Current causing fold back
Hugh, What is your supply voltage? If the supply voltage drops, then what you see is normal. 73, Don W3FPR On 7/7/2013 7:33 PM, SouthCarolinaDolphin wrote: I had sent a post several days ago but don't see my post so will repost. I have KX3 which in sn in 1100's. I sent it back for a mother board upgrade and also a new bnc ant connector with 2 m suppression. It has worked fine until last few days when I started getting high current warning the it folded back to 5 watts. Tried it on other bands c same problem. Tried on 50 ohm dummy load. Took slightly longer but same result. Also saw high current only once on receive. Any ideas??? Thanks Hugh W4DRH __ 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] KAT100 Problem
Dick, Are you doing the component tests (C5 to C6 for example) into a dummy load or into your antenna. Trying that test into an antenna just adds a lot of other unknowns into the formula - use a dummy load. Not only that, check the dummy load and the coax going to it - if you have an antenna analyzer, put it on the end of the coax that you are connecting to the KAT100 and see what the impedance is - it should be 50 ohms resistive and zero ohms reactive (or very close). Bad coax is a frequently overlooked problem spot as are PL-259 connectors that are not fully tightened. In other words, reduce the system to its bare essentials when doing any tests. With the known good dummy load and coax, now try the manual instructions again. If you get the same results on 20 meters, drop down to 40 meters and try the same test. Often the switch between one capacitor and another will cause the SWR to 'go offscale' on a higher frequency, but be just fine at a lower frequency. The jump in capacity between C5 and C6 is quite large - C5 is 150 pF while C6 is 300 pF, and that is a LOT on 20 meters. Your results when dropping down to 40 meters seem to be in line with reality. There is an alternative test (not in the manual) that you can do if you have a capacity meter. Connect the capacity meter between the center conductor and the shell of the input jack. With C0 selected, zero the meter (or record the stray capacitance shown), then cycle through the C1 thru C8. The capacitance should approximately double with each step upward in Cx. If you are not using a capacity meter that has a zero capability, subtract the capacitance measured at C0 from the reading at the other capacitors to arrive at the real capacitance value that the KAT100 is connecting. Yes, your RF-in-the-shack can be confusing things a lot. 73, Don W3FPR On 7/7/2013 7:06 PM, richardjwilt...@aol.com wrote: I have encountered difficulty with the KAT100. I am pretty sure the problem resulted from RF feedback in the shack from a Zero-Five flagpole antenna with an unun at its base, an ugly balun with Polyphaser ground after 80 feet of coax prior to entry into the shack, and a Balun Designs isolation balun following the 20 feet or so of coax that enters the shack. The isolation balun is inside the shack for stealth reasons because of a very intrusive HOA. Thae KAT100 would not tune the antenna or a dry dummy load on 20 meters. It will indicate a high SWR and the K2 registers a hot power amplifier. If I run it for a while, the RF gets into the radio and the other bands may be affected. As a consequence, I will eventually move the isolation balun between the KAT100 and the K2/100 and place another one on the line that leads into the shack. I tested the components as stipulated in the manual. When I switch from C5 to C6, the SWR jumps from 2.5 to off scale (9.9) on 20 meters an d 1.4 to 7.0 on 40 meters. Based on the knowledge and past experience of others, does it seem reasonable to assume that C6 is defective and the cause of the problem? Many thanks beforehand for any advice you folks have to offer. Vy 73, Dick, K8RBW. __ 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] KX3 High Current causing fold back
I had sent a post several days ago but don't see my post so will repost. I have KX3 which in sn in 1100's. I sent it back for a mother board upgrade and also a new bnc ant connector with 2 m suppression. It has worked fine until last few days when I started getting high current warning the it folded back to 5 watts. Tried it on other bands c same problem. Tried on 50 ohm dummy load. Took slightly longer but same result. Also saw high current only once on receive. Any ideas??? Thanks Hugh W4DRH THANK YOU for deleting my address, any other addresses, and personal information, from this e-mail, if you plan to forward it. THANK YOU also for using "Bcc" instead of "To" and "Cc" when initiating both individual and group e-mails. This helps prevent spammers, hackers and radicals from obtaining addresses, and thus the proliferation of spam. __ 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] KAT100 Problem
I have encountered difficulty with the KAT100. I am pretty sure the problem resulted from RF feedback in the shack from a Zero-Five flagpole antenna with an unun at its base, an ugly balun with Polyphaser ground after 80 feet of coax prior to entry into the shack, and a Balun Designs isolation balun following the 20 feet or so of coax that enters the shack. The isolation balun is inside the shack for stealth reasons because of a very intrusive HOA. Thae KAT100 would not tune the antenna or a dry dummy load on 20 meters. It will indicate a high SWR and the K2 registers a hot power amplifier. If I run it for a while, the RF gets into the radio and the other bands may be affected. As a consequence, I will eventually move the isolation balun between the KAT100 and the K2/100 and place another one on the line that leads into the shack. I tested the components as stipulated in the manual. When I switch from C5 to C6, the SWR jumps from 2.5 to off scale (9.9) on 20 meters and 1.4 to 7.0 on 40 meters. Based on the knowledge and past experience of others, does it seem reasonable to assume that C6 is defective and the cause of the problem? Many thanks beforehand for any advice you folks have to offer. Vy 73, Dick, K8RBW. __ 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] FT-100 Knob to K2
CNC73 is or did make a heavy know for the K1. The difference is not as profound as the K2 and K3 knobs (I have all three). But it helps. The CNC73 knob is absolutely wonderful on the K3. 73, Doug -- K0DXV On 7/6/2013 2:58 PM, EricJ wrote: I recently bought the 73CNC steel knob for the K2. I still can't believe I spent $90 for a freakin' radio knob! But I love it, and would do it again. Totally transformed the feel of that little radio. Just for fun, I tried it on my K1, but it's too heavy for the wobbly encoder used in that radio. You can hear it scrapping inside as it turns. So the old stock K2 knob went on the K1 and transformed that (my favorite) little radio as well. It needs a slightly bigger knob and the K2 knob is just right. Eric KE6US On 7/6/2013 11:33 AM, Steve wrote: When I purchased my first K2 in 2001, I ordered a FT-100 main tuning knob from Yaesu to replace the original one from Elecraft. That rig is long gone and I recently purchased a K2/100 that has the Elecraft knob with a finger dimple. It's not bad, but I am wondering if anyone has one of those FT-100 knobs they don't need and would like to sell. Since the FT-100 is out of production, they don't have any. I know there are other possibilities, but those heavy brass knobs just don't entice me. Please reply direct. Tnx & 73, Steve, N4EUK reston...@gmail.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 __ 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 5143 ERR TXG on 10m & 6m?
I've suddenly started getting a ERR TXG on 10m & 6m on my 10w K3 (SN 5143). Trying to perform the 5W TX calibration fails when if gets to 10m. Ideas? Thanks, and 73, Ross N4RP -- FCC Section 97.313(a) “At all times, an amateur station must use the minimum transmitter power necessary to carry out the desired communications.” __ 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] Trade off PR6 vs PR6-10 pre-amp
I have the PR6 mounted on the K3. Did successful JT65 6M moon bounce with 11 element antenna,1000 watts, 110 foot BuryFlex coax, and appropriate switching. So this setup worked. I note that the specification for the PR6-10 has about 2dB more gain than the PR6. The MDS and dynamic range specs are the same. Would the 6 meter performance with the K3 using the PR6-10 be better or worse than the PR6 because of: 1. Wider pass band? More opportunity for out of band noise? 2. More gain? Impact on overall dynamic range and noise figure? My real question is should I sell my PR6 and get a PR6-10? I do not want to lose anything on 6 meters but perhaps could stand some improvement on 10. Aloha, John KH7T, Unrepentant Engineer __ 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 6/10M pre-amp
On 7/7/2013 11:10 AM, Keith Heimbold wrote: I think a preamp with the K3 is an absolute necessity out here in Southern California with a small six element antenna for 6m. Whether a preamp is needed depends entirely on your own noise level, and as another post noted, the antenna gain. With a 4-el Yagi on a fairly long boom (3-el SteppIR), I definitely DO need a preamp. I use an ARR GasFET at the K3 patch point that I bought long before the K3 existed. There's an easy way to figure out if you need a preamp. If the noise level increases by at least 6-7 dB when you connect the antenna, you don't need a preamp. Btw, I have not heard before anyone on the east coast refer to their location as a black hole for 6m. This is definitely a first for me. When you live in Southern California and you get the chance to DX to Europe about one or two days every decade. Your surely have that right. Out here in the SF Bay Area, I've NEVER heard EU on 6M, and there have been VERY few Es openings this season. The last good one was the first day of the June ARRL VHF contest. At the same time that we watch the east coast working EU, the Caribbean, and each other. In six seasons, I've worked 13 countries on 6M with 500W and that SteppIR. Out here, DXCC on 6M is something you do in a lifetime from a high QTH with a BIG antenna. I know that K6QXY and K6KLY have done it, and it took them a LONG time. 73, Jim K9YC __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] Need Help w/KAT1
Lou, What happens when you put a dummy load on it and attempt to do a TUNE - what SWR does it report? If it is still 9.9 or something else above 1.5, then you have a problem with the K1 tuner - any chance you wound T1 in the direction opposite to that shown in the manual? If the dummy load tunes OK, look for an open or a short in your antenna system. 73, Don W3FPR On 7/7/2013 1:22 PM, Lou Roux wrote: Hi all, I just completed a KAT1 for an older K1. The tuner passes all tests but won't tune an antenna or a dummy load. When tuning all the relays activate but at the end I get the message r 9.9. The MCU is v1.09e. I've very carefully gone over all solder connections looking for bridges etc. and component placement, everything is in order. I'm totally frustrated and in need of help! Please contact me offline at w6ur at arrl dot net. Thanks for reading, Lou - W6UR __ 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 6/10M pre-amp
I think a preamp with the K3 is an absolute necessity out here in Southern California with a small six element antenna for 6m. I use one both the PR6 and the Collins Laboratory preamp I purchased from Dr Jack Smith. Both work great. Btw, I have not heard before anyone on the east coast refer to their location as a black hole for 6m. This is definitely a first for me. When you live in Southern California and you get the chance to DX to Europe about one or two days every decade. Keith AK6ZZ Sent from my iPhone please excuse typos On Jul 7, 2013, at 10:37 AM, "Fred Smith" wrote: > Glen the internal preamp did not work on 6m. Your antennas are your largest > asset by far, wish I had them. About any radio with 6m would perform very > well with your setup but my FTDX-5000MP and Icom's spoiled me on the high > bands. > > If you do a lot of weak signal work a mast mounted preamp and hardline would > do wonders for you. I enjoy weak signal VHF myself and a close friend Mike > K0AZ was the first true Zero land call with 6m DXCC some time back. He is > one of my go to guys and has been very helpful over the years with 50 yrs. > of experience to call upon. > > > 73, > Fred/N0AZZ > K3 Ser # 6730--KX3 # 2573--K2/100 # 6470-KAT100 > P3/SVGA--KPA500--KAT500--W2 > > > > > -Original Message- > From: elecraft-boun...@mailman.qth.net > [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Glen > Sent: Sunday, July 07, 2013 7:49 AM > To: Gary Gregory > Cc: elecraft > Subject: Re: [Elecraft] K3 6/10M pre-amp > > Hello, > > I have had a different experience with regards to the 6M performance. > > I was always told for years that the 6M performance on rx was pretty poor. > After I got a K3 recently, I found > the internal preamp to be pretty good. But, I had a DEMI 6M preamp, so I > installed it in a small die cast box and bought male BNC connectors and made > it mate exactly to the back of the K3. Then used the 12 volt out to power > the DEMI preamp. The DEMI preamp is better than the internal one, but not > by a large margin. With BOTH preamps on, is only marginally better. I plan > on adding cutoff relays like the PR6 later. > > Background: I do weak signal 6M work, with 104 countries worked in 6 years > down here in the black hole of southwest GA. Antenna: 7x7 LFA at 120' and > 85'. > > 73's > > Glen K4KV > Moultrie, GA > > > -Original Message- > From: elecraft-boun...@mailman.qth.net > [mailto:elecraft-boun...@mailman.qth.net]On Behalf Of Gary Gregory > Sent: Sunday, July 07, 2013 6:54 AM > To: Fred Smith > Cc: Elecraft List > Subject: Re: [Elecraft] K3 6/10M pre-amp > > > I'm not. But I did a post from Elecraft stating it was possible IF enough > wanted it. > > I am over 'add on boxes' for now to fix a problem that should have been done > sooner, not later. > > Just thinkin' > > 73 > > On 7 July 2013 20:49, Fred Smith wrote: > >> I wouldn't hold my breath. >> >> >> 73, >> Fred/N0AZZ >> K3 Ser # 6730--KX3 # 2573--K2/100 # 6470-KAT100 >> P3/SVGA--KPA500--KAT500--W2 >> >> >> >> -Original Message- >> From: elecraft-boun...@mailman.qth.net >> [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Gary Gregory >> Sent: Sunday, July 07, 2013 5:31 AM >> To: Elecraft List >> Subject: [Elecraft] K3 6/10M pre-amp >> >> Wonder when we will see release of an internal 6/10M pre-amp? >> >> 73 >> >> Gary >> >> -- >> *Gary - VK1ZZ >> Skype: Gary.VK1ZZ >> http://www.qsl.net/vk1zz >> Motorhome Portable >> The Shack* >> *Elecraft K3 >> P3 Panadapter >> KPA500FT >> KAT500FT** >> >> * >> __ >> 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 message. >> Checked by AVG - www.avg.com >> Version: 2013.0.2904 / Virus Database: 3204/6470 - Release Date: >> 07/06/13 > > > -- > *Gary - VK1ZZ > Skype: Gary.VK1ZZ > http://www.qsl.net/vk1zz > Motorhome Portable > The Shack* > *Elecraft K3 > P3 Panadapter > KPA500FT > KAT500FT** > > * > __ > 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 message. > Ch
Re: [Elecraft] K3 6/10M pre-amp
Jim The KX3 has no problems with the high bands works perfect, mine does anyway it's just the K3 and only 6/10m with it. 73, Fred/N0AZZ K3 Ser # 6730--KX3 # 2573--K2/100 # 6470-KAT100 P3/SVGA--KPA500--KAT500--W2 . -Original Message- From: elecraft-boun...@mailman.qth.net [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Jim Lowman Sent: Sunday, July 07, 2013 12:29 PM To: elecraft@mailman.qth.net Subject: Re: [Elecraft] K3 6/10M pre-amp I know that this has probably been discussed before, but just how bad is the K3 on 6m/10m? Hopefully, the KX3 doesn't suffer this fate as well. It's one thing to spend another $160 on the 6m/10m preamp, but it also requires the KXV3A at another $120. Yes, that would also provide the ability to use a second antenna, have access to the IF out and support a transverter. The most likely of these features that I would use is the transverter output to get on 222 MHz. But there's so little activity on that band in this area for some reason, even in contests, that I question the expense of the transverter and antenna. 73 de Jim - AD6CW __ 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 message. Checked by AVG - www.avg.com Version: 2013.0.2904 / Virus Database: 3204/6470 - Release Date: 07/06/13 __ 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 6/10M pre-amp
Glen the internal preamp did not work on 6m. Your antennas are your largest asset by far, wish I had them. About any radio with 6m would perform very well with your setup but my FTDX-5000MP and Icom's spoiled me on the high bands. If you do a lot of weak signal work a mast mounted preamp and hardline would do wonders for you. I enjoy weak signal VHF myself and a close friend Mike K0AZ was the first true Zero land call with 6m DXCC some time back. He is one of my go to guys and has been very helpful over the years with 50 yrs. of experience to call upon. 73, Fred/N0AZZ K3 Ser # 6730--KX3 # 2573--K2/100 # 6470-KAT100 P3/SVGA--KPA500--KAT500--W2 -Original Message- From: elecraft-boun...@mailman.qth.net [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Glen Sent: Sunday, July 07, 2013 7:49 AM To: Gary Gregory Cc: elecraft Subject: Re: [Elecraft] K3 6/10M pre-amp Hello, I have had a different experience with regards to the 6M performance. I was always told for years that the 6M performance on rx was pretty poor. After I got a K3 recently, I found the internal preamp to be pretty good. But, I had a DEMI 6M preamp, so I installed it in a small die cast box and bought male BNC connectors and made it mate exactly to the back of the K3. Then used the 12 volt out to power the DEMI preamp. The DEMI preamp is better than the internal one, but not by a large margin. With BOTH preamps on, is only marginally better. I plan on adding cutoff relays like the PR6 later. Background: I do weak signal 6M work, with 104 countries worked in 6 years down here in the black hole of southwest GA. Antenna: 7x7 LFA at 120' and 85'. 73's Glen K4KV Moultrie, GA -Original Message- From: elecraft-boun...@mailman.qth.net [mailto:elecraft-boun...@mailman.qth.net]On Behalf Of Gary Gregory Sent: Sunday, July 07, 2013 6:54 AM To: Fred Smith Cc: Elecraft List Subject: Re: [Elecraft] K3 6/10M pre-amp I'm not. But I did a post from Elecraft stating it was possible IF enough wanted it. I am over 'add on boxes' for now to fix a problem that should have been done sooner, not later. Just thinkin' 73 On 7 July 2013 20:49, Fred Smith wrote: > I wouldn't hold my breath. > > > 73, > Fred/N0AZZ > K3 Ser # 6730--KX3 # 2573--K2/100 # 6470-KAT100 > P3/SVGA--KPA500--KAT500--W2 > > > > -Original Message- > From: elecraft-boun...@mailman.qth.net > [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Gary Gregory > Sent: Sunday, July 07, 2013 5:31 AM > To: Elecraft List > Subject: [Elecraft] K3 6/10M pre-amp > > Wonder when we will see release of an internal 6/10M pre-amp? > > 73 > > Gary > > -- > *Gary - VK1ZZ > Skype: Gary.VK1ZZ > http://www.qsl.net/vk1zz > Motorhome Portable > The Shack* > *Elecraft K3 > P3 Panadapter > KPA500FT > KAT500FT** > > * > __ > 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 message. > Checked by AVG - www.avg.com > Version: 2013.0.2904 / Virus Database: 3204/6470 - Release Date: > 07/06/13 > > -- *Gary - VK1ZZ Skype: Gary.VK1ZZ http://www.qsl.net/vk1zz Motorhome Portable The Shack* *Elecraft K3 P3 Panadapter KPA500FT KAT500FT** * __ 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 message. Checked by AVG - www.avg.com Version: 2013.0.2904 / Virus Database: 3204/6470 - Release Date: 07/06/13 __ 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 6/10M pre-amp
I know that this has probably been discussed before, but just how bad is the K3 on 6m/10m? Hopefully, the KX3 doesn't suffer this fate as well. It's one thing to spend another $160 on the 6m/10m preamp, but it also requires the KXV3A at another $120. Yes, that would also provide the ability to use a second antenna, have access to the IF out and support a transverter. The most likely of these features that I would use is the transverter output to get on 222 MHz. But there's so little activity on that band in this area for some reason, even in contests, that I question the expense of the transverter and antenna. 73 de Jim - AD6CW __ 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] Need Help w/KAT1
Hi all, I just completed a KAT1 for an older K1. The tuner passes all tests but won't tune an antenna or a dummy load. When tuning all the relays activate but at the end I get the message r 9.9. The MCU is v1.09e. I've very carefully gone over all solder connections looking for bridges etc. and component placement, everything is in order. I'm totally frustrated and in need of help! Please contact me offline at w6ur at arrl dot net. Thanks for reading, Lou - W6UR __ 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] 6/10m Preamp
Mike Has not been enough traffic on 12m since I received it to know one way or another. Fred -Original Message- From: elecraft-boun...@mailman.qth.net [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Mike K2MK Sent: Sunday, July 07, 2013 9:16 AM To: elecraft@mailman.qth.net Subject: Re: [Elecraft] 6/10m Preamp Hi Fred, I noticed on the specs that the preamp frequency range is 22 to 54 MHz. Have you tried it on 12 meters? 73, Mike K2MK Fred Smith wrote > I received my new 6/10m preamp yesterday morning and installed it. I > had been using my IC-9100 for 6/10m as it has excellent preamps in it. > There was a lot of 6m and some 10 traffic yesterday and in the > evening. The Elecraft 6/10m does improve the K3 quite a bit over what > it was for sure hope to know more in a few days but so far a vast > improvement. > > 73, > Fred/N0AZZ -- View this message in context: http://elecraft.365791.n2.nabble.com/6-10m-Preamp-tp7576399p7576410.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 - No virus found in this message. Checked by AVG - www.avg.com Version: 2013.0.2904 / Virus Database: 3204/6470 - Release Date: 07/06/13 __ 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 Elecraft Book For Sale
I have a perfect and pristine spiral bound copy of Fred Cady's book "The Elecraft K3, Design, Configuration, and Operation" -- First Edition. This is the original and I decided to update to the newer second edition. I am selling for the price of $2 plus postage and handling (putting it in something to mail) and I have no idea what that is so let's assume a price of $8. If someone wants to buy for $8 then it is available. Please contact off list: phys...@mac.com 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] Audio transformers needed
On 7/7/2013 12:10 AM, Jim Wiley wrote: These will be used to remove a ground-loop problem between my computer and other equipment. You do NOT need a transformer. What you DO need is simple bonding. http://audiosystemsgroup.com/HamInterfacing.pdf There are two simple steps. 1) Get power for all of the radio equipment, and for all equipment connected to your radio equipment (computer, computer monitor) from the same 120V electrical outlet. 2) Bond from chassis to chassis of all equipment that has an unbalanced signal connection to your radio equipment (rig, computer, audio processing, etc.) with short, fat copper. I use the braid stripped from good transmitting coax (RG8), which is typically the equivalent of #10. And, of course, add a short fat bond from the rig to the station ground. That's all you need. A chassis connection to most laptops can be found at the connector retaining screw of DB-connectors (SVGA, LPT, RS232). There is, by the way, no such thing as a "ground loop." The REAL cause of the problem is simple leakage current within the AC power system. See the link above for an explanation. 73, Jim K9YC __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] K3 6/10M pre-amp
It's not internal, though.Wayne did state that that would not be feasible. http://elecraft.365791.n2.nabble.com/K3-Combined-6-and-10mtr-preamp-td7572734.html 73, ~iain / N6ML On Sun, Jul 7, 2013 at 6:05 AM, Jack Berry wrote: > It's on the order page now. Same price for any of the three pre's including > the old 6 pre, new 10 pre and new combo 6/10 preamp. $159.95 if memory serves. > > On Jul 7, 2013, at 5:30 AM, Gary Gregory wrote: > >> Wonder when we will see release of an internal 6/10M pre-amp? >> >> 73 >> >> Gary >> >> -- >> *Gary - VK1ZZ >> Skype: Gary.VK1ZZ >> http://www.qsl.net/vk1zz >> Motorhome Portable >> The Shack* >> *Elecraft K3 >> P3 Panadapter >> KPA500FT >> KAT500FT** >> >> * >> __ >> 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] Audio transformers needed
Two that I have used with good results are “Triad TY-304P” and “Etal P-3356”. These are quality transformers and are readily available. Just enter the part number in your search engine. Radio Shack also has several available that should work just fine. Just a note: A transformer is not required for interfacing to a K3 Line in/out. Transformer isolation is supplied internally. __ 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] 6/10m Preamp
Hi Fred, I noticed on the specs that the preamp frequency range is 22 to 54 MHz. Have you tried it on 12 meters? 73, Mike K2MK Fred Smith wrote > I received my new 6/10m preamp yesterday morning and installed it. I had > been using my IC-9100 for 6/10m as it has excellent preamps in it. There > was > a lot of 6m and some 10 traffic yesterday and in the evening. The Elecraft > 6/10m does improve the K3 quite a bit over what it was for sure hope to > know > more in a few days but so far a vast improvement. > > 73, > Fred/N0AZZ -- View this message in context: http://elecraft.365791.n2.nabble.com/6-10m-Preamp-tp7576399p7576410.html Sent from the Elecraft mailing list archive at Nabble.com. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] [K3]
Somewhere I saw an adapter (or complete cable) to allow an ICOM PS-125 power supply to power the K3. Anybody remember? 73, Mike NF4L __ 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] KX3 VFO Noise Mod
Howdy Gang: Has anyone performed the KX3 VFO Noise Mod on their KX3 yet??? If so, how well does the mod work in terms of reducing the VFO noise?? 73, Joe W2KJ I QRP, therefore I am __ 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] FW 4.67 and K3EXREF
Thanks, David. I never loaded 4.57 and the current notes on the Elecraft K3 firmware page don't include this item. I'll have to be more careful to read all of the release notes for versions between that last loaded and a new one. This would have been a more seamless upgrade if the firmware had been able to detect the K3EXREF module and "do the right thing"; that is, if the module is present, set the config menu item to enable it. Hard to imagine why I would install the module and then not use it. Perhaps the detection is not possible. David G4DMP wrote > Check the release notes, Stan. MCU 4.57 / DSP 2.79, 10-24-2012 state: > > K3EXREF USERS MUST NOW ENABLE THE MODULE IN THE MENU: To do this, locate > the CONFIG:REF CAL menu and tap 2 to change the setting; flashes XREF IN > or XREF OUT. - 73, Stan - KR7C -- View this message in context: http://elecraft.365791.n2.nabble.com/FW-4-67-and-K3EXREF-tp7576395p7576407.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 6/10M pre-amp
It's on the order page now. Same price for any of the three pre's including the old 6 pre, new 10 pre and new combo 6/10 preamp. $159.95 if memory serves. On Jul 7, 2013, at 5:30 AM, Gary Gregory wrote: > Wonder when we will see release of an internal 6/10M pre-amp? > > 73 > > Gary > > -- > *Gary - VK1ZZ > Skype: Gary.VK1ZZ > http://www.qsl.net/vk1zz > Motorhome Portable > The Shack* > *Elecraft K3 > P3 Panadapter > KPA500FT > KAT500FT** > > * > __ > 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 6/10M pre-amp
Hello, I have had a different experience with regards to the 6M performance. I was always told for years that the 6M performance on rx was pretty poor. After I got a K3 recently, I found the internal preamp to be pretty good. But, I had a DEMI 6M preamp, so I installed it in a small die cast box and bought male BNC connectors and made it mate exactly to the back of the K3. Then used the 12 volt out to power the DEMI preamp. The DEMI preamp is better than the internal one, but not by a large margin. With BOTH preamps on, is only marginally better. I plan on adding cutoff relays like the PR6 later. Background: I do weak signal 6M work, with 104 countries worked in 6 years down here in the black hole of southwest GA. Antenna: 7x7 LFA at 120' and 85'. 73's Glen K4KV Moultrie, GA -Original Message- From: elecraft-boun...@mailman.qth.net [mailto:elecraft-boun...@mailman.qth.net]On Behalf Of Gary Gregory Sent: Sunday, July 07, 2013 6:54 AM To: Fred Smith Cc: Elecraft List Subject: Re: [Elecraft] K3 6/10M pre-amp I'm not. But I did a post from Elecraft stating it was possible IF enough wanted it. I am over 'add on boxes' for now to fix a problem that should have been done sooner, not later. Just thinkin' 73 On 7 July 2013 20:49, Fred Smith wrote: > I wouldn't hold my breath. > > > 73, > Fred/N0AZZ > K3 Ser # 6730--KX3 # 2573--K2/100 # 6470-KAT100 > P3/SVGA--KPA500--KAT500--W2 > > > > -Original Message- > From: elecraft-boun...@mailman.qth.net > [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Gary Gregory > Sent: Sunday, July 07, 2013 5:31 AM > To: Elecraft List > Subject: [Elecraft] K3 6/10M pre-amp > > Wonder when we will see release of an internal 6/10M pre-amp? > > 73 > > Gary > > -- > *Gary - VK1ZZ > Skype: Gary.VK1ZZ > http://www.qsl.net/vk1zz > Motorhome Portable > The Shack* > *Elecraft K3 > P3 Panadapter > KPA500FT > KAT500FT** > > * > __ > 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 message. > Checked by AVG - www.avg.com > Version: 2013.0.2904 / Virus Database: 3204/6470 - Release Date: 07/06/13 > > -- *Gary - VK1ZZ Skype: Gary.VK1ZZ http://www.qsl.net/vk1zz Motorhome Portable The Shack* *Elecraft K3 P3 Panadapter KPA500FT KAT500FT** * __ 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] FW 4.67 and K3EXREF
Check the release notes, Stan. MCU 4.57 / DSP 2.79, 10-24-2012 state: K3EXREF USERS MUST NOW ENABLE THE MODULE IN THE MENU: To do this, locate the CONFIG:REF CAL menu and tap 2 to change the setting; flashes XREF IN or XREF OUT. 73 de David G4DMP In a recent message, Stan Gibbs writes >I just realized that both my K3's running FW 4.67 are no longer locking to >the K3EXREF calibration signal from a Trimble Thunderbolt. Specifically, the >"REF CAL" config menu item does not show the flashing asterisk and moving >the main tuning knob does not show "LOCKED". I have had the K3EXREF >installed and operating properly with both rigs for at least a year. > >The Trimble Thunderbolt provides the 10MHz calibration signal to both K3's >though a MiniCircuits splitter. After checking the power supply and output >levels of the Thunderbolt, which were nominal, I decided to see if the K3 >firmware could be responsible, since I had fairly recently upgraded to 4.67. >Indeed, rolling back to 4.51 re-enables the normal "REF CAL" behavior! > >Can anyone else verify this? -- + - - - - - - - - - - - - - - - - + | David M Pratt, Kippax, Leeds. | | Website: http://www.g4dmp.co.uk | + - - - - - - - - - - - - - - - - + __ 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 6/10M pre-amp
I'm not. But I did a post from Elecraft stating it was possible IF enough wanted it. I am over 'add on boxes' for now to fix a problem that should have been done sooner, not later. Just thinkin' 73 On 7 July 2013 20:49, Fred Smith wrote: > I wouldn't hold my breath. > > > 73, > Fred/N0AZZ > K3 Ser # 6730--KX3 # 2573--K2/100 # 6470-KAT100 > P3/SVGA--KPA500--KAT500--W2 > > > > -Original Message- > From: elecraft-boun...@mailman.qth.net > [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Gary Gregory > Sent: Sunday, July 07, 2013 5:31 AM > To: Elecraft List > Subject: [Elecraft] K3 6/10M pre-amp > > Wonder when we will see release of an internal 6/10M pre-amp? > > 73 > > Gary > > -- > *Gary - VK1ZZ > Skype: Gary.VK1ZZ > http://www.qsl.net/vk1zz > Motorhome Portable > The Shack* > *Elecraft K3 > P3 Panadapter > KPA500FT > KAT500FT** > > * > __ > 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 message. > Checked by AVG - www.avg.com > Version: 2013.0.2904 / Virus Database: 3204/6470 - Release Date: 07/06/13 > > -- *Gary - VK1ZZ Skype: Gary.VK1ZZ http://www.qsl.net/vk1zz Motorhome Portable The Shack* *Elecraft K3 P3 Panadapter KPA500FT KAT500FT** * __ 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 6/10M pre-amp
I wouldn't hold my breath. 73, Fred/N0AZZ K3 Ser # 6730--KX3 # 2573--K2/100 # 6470-KAT100 P3/SVGA--KPA500--KAT500--W2 -Original Message- From: elecraft-boun...@mailman.qth.net [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Gary Gregory Sent: Sunday, July 07, 2013 5:31 AM To: Elecraft List Subject: [Elecraft] K3 6/10M pre-amp Wonder when we will see release of an internal 6/10M pre-amp? 73 Gary -- *Gary - VK1ZZ Skype: Gary.VK1ZZ http://www.qsl.net/vk1zz Motorhome Portable The Shack* *Elecraft K3 P3 Panadapter KPA500FT KAT500FT** * __ 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 message. Checked by AVG - www.avg.com Version: 2013.0.2904 / Virus Database: 3204/6470 - Release Date: 07/06/13 __ 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 - anyone have experience with effects of metal roofs on antenna performace?
A 4 square can be badly affected by metal (towers, masts, metal roofs). The gain is similar but it loses front to back ratio in the affected direction. David G3UNA You forgot the Gain. Forexample you can loose 2 - 3 dB gain on an antenna due to interaction with another antenna or "object" and see no nothing on the SWR you measure down in the shack. Then you think everything is fine a perfect, well maybe it´s good since what you don´t know you don´t worry about. /SM2EKM __ 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 6/10M pre-amp
Wonder when we will see release of an internal 6/10M pre-amp? 73 Gary -- *Gary - VK1ZZ Skype: Gary.VK1ZZ http://www.qsl.net/vk1zz Motorhome Portable The Shack* *Elecraft K3 P3 Panadapter KPA500FT KAT500FT** * __ 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] 6/10m Preamp
When I bought my first K3 I also had my FTDX-5000MP in the shack and compared the 2 for over 4 months side by side using a YL-1000 amp with a radio A/B button. The amp had 4 antenna inputs so was very easy to compare both radios on an even playing field. As most all of you know the 5000 rates just above the K3 on Sherwood's and ARRL's lists for receiver performance but I was one that always had to see for myself after building a K2. I did speak with Eric or Wayne about this at that time and was told that could be addressed easily and would be...Wahoo here it is now and I have it installed. Very early on 2 things became quite apparent about the K3 it had poor receive on 6 and 10m where the 5000's was excellent and I did like the NR a little better on the 5000. But after 4 months side by side I decided to sell my 5000/VL-1000 amp/Mu Tuning units and a bunch of other gear. One thing I might add was the K3 I tested with was a stock base K3/100/2.7 filter/ with an IF out transverter interface. Ordered another K3 loaded with every option/ and the complete line including the amp and tuner with an Alpha for legal limit. I received my new 6/10m preamp yesterday morning and installed it. I had been using my IC-9100 for 6/10m as it has excellent preamps in it. There was a lot of 6m and some 10 traffic yesterday and in the evening. The Elecraft 6/10m does improve the K3 quite a bit over what it was for sure hope to know more in a few days but so far a vast improvement. Thanks again Elecraft for responding to your customer requests! 73, Fred/N0AZZ K3 Ser # 6730--KX3 # 2573--K2/100 # 6470-KAT100 P3/SVGA--KPA500--KAT500--W2 __ 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] Audio transformers needed
Looking for a pair of audio transformers, something in the range of 600 to 2400 ohms impedance, 1:1 ratio (equal primary and secondary impedance). These will be used to remove a ground-loop problem between my computer and other equipment. I prefer something that will handle wide range audio, perhaps 30 to 15,000 Hz (wider is OK, but must be at least 40 Hz on the low end, and 12,000 Hz on the high end). These are typically about 1" to 1 1/4" square and 1 1/2 to 2" deep, in a deep-drawn steel shell with 4 6-32 mounting studs. I prefer a matched pair, but individual units are OK as long as they have approximately same configuration. If you have something that may work, please let me know and perhaps I can arrange a trade or purchase. Removed from military or boat anchor equipment is OK, need not be new Please reply off list, in other words, directly to one of my emails, shown below, to cut down on traffic to those not interested in this subject Reply to: kl...@arrl.net, or jwi...@gci.net Thanks, and 73 - Jim, KL7CC Chugiak, AK (near Anchorage) __ 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
