Re: [Elecraft] K2 #7446 is alive and made my first QSO
Don thanks so much for your quick reply and help. I went through all your suggestions and all looked great. I then looked in Appendix E as you suggested and went through those steps. Under problem #100 it says to check for missing audio filter options or the bypass jumpers. I re-soldered the jumpers and all is well. Very loud audio now even seems better than my other K2. Now on to the filter alignment. I build an Elecraft wide band noise generator last night and I'm looking forward to learning how to get those filters set up. Thanks so much. 73 Stan AE7UT -- View this message in context: http://elecraft.365791.n2.nabble.com/K2-7446-is-alive-and-made-my-first-QSO-tp7576940p7576953.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] Elecraft SSB net announcement
I will not be available to be the net control station for the net today, and I have not found a replacement. This is a chance for someone to step forward and take the role today. How about one of our regular relays. The net is at 1800Z on 14.3035 MHz. Hope that it goes well. 73, Phil, NS7P __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] K2 #7446 is alive and made my first QSO
Stan, If you have not already, check out the K2 Dial Calibration article on my website. Part 3 covers the filters. If you need a copy of Spectrogram, look for a link near the bottom of my home page. 73, Don W3FPR On 7/21/2013 3:22 AM, Stan AE7UT wrote: Don thanks so much for your quick reply and help. I went through all your suggestions and all looked great. I then looked in Appendix E as you suggested and went through those steps. Under problem #100 it says to check for missing audio filter options or the bypass jumpers. I re-soldered the jumpers and all is well. Very loud audio now even seems better than my other K2. Now on to the filter alignment. I build an Elecraft wide band noise generator last night and I'm looking forward to learning how to get those filters set up. Thanks so much. 73 Stan AE7UT -- View this message in context: http://elecraft.365791.n2.nabble.com/K2-7446-is-alive-and-made-my-first-QSO-tp7576940p7576953.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
[Elecraft] FS: Elecraft K3/100 / KRX 3 sub RX
I am simplifying the station, and unwinding the SO2R functionality which I thought I'd enjoy. Turns out, I'm just not interested (or maybe smart enough?) for that category. The rig has always been used in my air-conditioned, non-smoking shack. It's never been mobile, used at someone else's shack, or on Field Day, etc. It's all 9.5/10, at least. This is just about fully loaded. The KRX3 sub receiver provides amazing flexibility, including diversity reception. Original Owner S/N 458 2.8 KHz 1.8 KHz 400 Hz 200 Hz filters KRX3 w/ 2.8 KHz 1.8 Khz 400 Hz 200 Hz filters. * 5-pole filters are factory-matched * KPA3 100 watt PA KAT3 ATU with factory upgraded components KDVR3 Digital Voice Recorder KTCXO3-1 TCXO (0.1 ppm typ) High Stability Ref. Osc. Upgraded KIO3 board K3AFMDKT AF Mod kit installed KXV3 RX Ant. IF Out and Xverter Interface Factory service 12/13/2012 All service records My Price: $3600.00 (New Price: $4460.66) Thanks for reading. 73, Steve NN4X EL98jh __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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 - RTTY FSK-D power
Hi Hank and all. It's almost the same as I see it here on the KPA500 PWR diplay. Diddling RTTY FSK signal make the K3 Pout bubbling a bit. When at a steady 80W Pout without of FSK without diddle I add the diddle the KPA500 move very fast around 80W. I couldn't appreciate the real numbers as they move too fast and the KPA500 is also fast changing. The same at 40W at at the 100W Pout level. The same effect is well seen also on some PS instruments. When the K3 is diddling in RTTY the current shows some diddling also. That's almost empirically, but it is. The same effect was seen on the last FW release and also on the one before. 73 de iw1ayd Salvo __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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 - RTTY FSK-D power
The K3 power calibration is done at CW (key down) but FSK includes a bit of shaping to reduce key clicks. That adds just a bit of peak to average power difference and would account for a small difference between CW and FSK. I measure just under 1 watt difference at 80 W between CW and FSK conditions - about 0.6 dB. 73, ... Joe, W4TV On 7/21/2013 10:31 AM, iw1ayd - Salvatore Irato wrote: Hi Hank and all. It's almost the same as I see it here on the KPA500 PWR diplay. Diddling RTTY FSK signal make the K3 Pout bubbling a bit. When at a steady 80W Pout without of FSK without diddle I add the diddle the KPA500 move very fast around 80W. I couldn't appreciate the real numbers as they move too fast and the KPA500 is also fast changing. The same at 40W at at the 100W Pout level. The same effect is well seen also on some PS instruments. When the K3 is diddling in RTTY the current shows some diddling also. That's almost empirically, but it is. The same effect was seen on the last FW release and also on the one before. 73 de iw1ayd Salvo __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] XG3: unable to do Firware Upload
Howdy K3' people: It seems I am connected to the XG3. I can't remember in the past doing a Firmware Upload though ... I tried this twice ---error Elecraft XG3 Utility Version 1.4.3.22 OS Version 6.1 Build 7601 Windows 7/Windows Server 2008 R2 XG3 firmware file xg3_114.hex verified Sending firmware file xg3_114.hex to XG3 XG3 firmware file checksum reconciliation word is x Retry 1 successful at address x001CC0 Retry 1 successful at address x002B40 Retry 1 successful at address x002FC0 Retry 1 successful at address x005D80 Retry 1 successful at address x006C00 XG3 checksum reconciliation word was replaced with computed value x7FE5 Waiting for reset to complete Total number of retries was 5 Highest number of retries for any block was 1 Error code xE220, No response to MCU version query XG3 firmware load failed Click Close to close this window -- -- 73 KD7YZ Bob __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] XG3: unable to do Firware Upload
This sounds like a marginal USB to serial adapter power situation. Are you using a laptop? Does it have AC power? Are there other USB hubs available on the computer? 73 de Dick, K6KR -Original Message- From: elecraft-boun...@mailman.qth.net [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of KD7YZ Bob Sent: Sunday, July 21, 2013 8:30 AM To: 'K3 List' Subject: [Elecraft] XG3: unable to do Firware Upload Howdy K3' people: It seems I am connected to the XG3. I can't remember in the past doing a Firmware Upload though ... I tried this twice ---error Elecraft XG3 Utility Version 1.4.3.22 OS Version 6.1 Build 7601 Windows 7/Windows Server 2008 R2 XG3 firmware file xg3_114.hex verified Sending firmware file xg3_114.hex to XG3 XG3 firmware file checksum reconciliation word is x Retry 1 successful at address x001CC0 Retry 1 successful at address x002B40 Retry 1 successful at address x002FC0 Retry 1 successful at address x005D80 Retry 1 successful at address x006C00 XG3 checksum reconciliation word was replaced with computed value x7FE5 Waiting for reset to complete Total number of retries was 5 Highest number of retries for any block was 1 Error code xE220, No response to MCU version query XG3 firmware load failed Click Close to close this window -- -- 73 KD7YZ Bob __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] K3EXREF query
The most useful tool, which I have found for this type of application, is the simple screw Grabber. Not only can this tool be used to hold a screw and washer(s) while starting the thread, but also while removing a screw and washers. It can also be used to retrieve bits of wire, screws, washers and other small items which may have fallen into difficult to reach places. The tool requires only one hand to hold it during use, and is operated by the thumb of that hand. It is also very inexpensive, about $2, and is available from most of the major stockists. 73, Geoff LX2AO On July 20, 2013 at 6:39 PM, Ron D'Eau Claire wrote: You are right that one must be careful to not lose the split lock washer between the KREF3 and the front panel, but testers didn't find the process very difficult to do. What a couple of people who suffered hand tremors reported doing to avoid that lock washer falling off was to put a small drop of petroleum jelly or soft candle wax on the screw after placing the lock washer on it. That kept the washer from easily falling off while they repositioned the KREF3 board and started the screw threads into the fitting on the front panel shield. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] K3EXREF query
I've used a little bit of coax seal too many times to count. Stick a bit in the screwdriver tip and it will hold the screw very well.Used t recently re-building a T-8 Tennadyne Log Periodic with lots of difficult to access areas. Didn't drop a one (and they would have gone into the boom and been totally inaccessible). Mike, k5smg Bella-Green Bed Breakfast www.bella-green.com On Sun, Jul 21, 2013 at 10:52 AM, Geoffrey Mackenzie-Kennedy lx...@pt.luwrote: The most useful tool, which I have found for this type of application, is the simple screw Grabber. Not only can this tool be used to hold a screw and washer(s) while starting the thread, but also while removing a screw and washers. It can also be used to retrieve bits of wire, screws, washers and other small items which may have fallen into difficult to reach places. The tool requires only one hand to hold it during use, and is operated by the thumb of that hand. It is also very inexpensive, about $2, and is available from most of the major stockists. 73, Geoff LX2AO On July 20, 2013 at 6:39 PM, Ron D'Eau Claire wrote: You are right that one must be careful to not lose the split lock washer between the KREF3 and the front panel, but testers didn't find the process very difficult to do. What a couple of people who suffered hand tremors reported doing to avoid that lock washer falling off was to put a small drop of petroleum jelly or soft candle wax on the screw after placing the lock washer on it. That kept the washer from easily falling off while they repositioned the KREF3 board and started the screw threads into the fitting on the front panel shield. __**__**__ Elecraft mailing list Home: http://mailman.qth.net/**mailman/listinfo/elecrafthttp://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.**htmhttp://mailman.qth.net/mmfaq.htm Post: mailto:elecr...@mailman.qth.**net 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] XG3: unable to do Firware Upload
On 7/21/2013, () sent : This sounds like a marginal USB to serial adapter power situation. thanks info/help Dick. Quick Response! Mainframe. seems it was the 9v battery. I plugged into a 12v wall-charger, then got the d/l to work. however, I also had a confusing time with the pop-up which comes up and says xg3 ready for firmware ... on COM6 but I have this on COM9 .. so even though I selected COM9, maybe because I didn't close-port and go to COM9 .. rather than go straight to COM9 ... dunno .. anyway, the Firmware uploaded. thanks again __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] Elecraft SSB net announcement
Tried to find the net today, but 20 is a bit of a mess here in the SE. (My antenna orientation due to available tossing options also may make a shot toward the NW difficult since its orientation is se-nw making it an off the end shot) (Dipole that looks center fed from the outside, but appears physically as end fed...) KK4QDZ - Now with Extra Class Priv's, and a tiny KX3 to enjoy them! From: Phil Shepard ph...@riousa.com To: elecraft@mailman.qth.net elecraft@mailman.qth.net Sent: Sunday, July 21, 2013 8:32 AM Subject: [Elecraft] Elecraft SSB net announcement I will not be available to be the net control station for the net today, and I have not found a replacement. This is a chance for someone to step forward and take the role today. How about one of our regular relays. The net is at 1800Z on 14.3035 MHz. Hope that it goes well. 73, Phil, NS7P __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] XG3: unable to do Firware Upload
Sounds like a couple of problems, then. Glad you're going again! If COM6 is a device that echoes whatever is sent to it, it looks a lot like Elecraft devices when they're in their firmware boot loader. 73 de Dick, K6KR -Original Message- From: elecraft-boun...@mailman.qth.net [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of KD7YZ Bob Sent: Sunday, July 21, 2013 9:00 AM Cc: 'K3 List' Subject: Re: [Elecraft] XG3: unable to do Firware Upload On 7/21/2013, () sent : This sounds like a marginal USB to serial adapter power situation. thanks info/help Dick. Quick Response! Mainframe. seems it was the 9v battery. I plugged into a 12v wall-charger, then got the d/l to work. however, I also had a confusing time with the pop-up which comes up and says xg3 ready for firmware ... on COM6 but I have this on COM9 .. so even though I selected COM9, maybe because I didn't close-port and go to COM9 .. rather than go straight to COM9 ... dunno .. anyway, the Firmware uploaded. thanks again __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] Elecraft SSB net announcement
Bill, the net meets at 2:00 PM EDT on 14.3035 +/- QRM. On Jul 21, 2013 12:10 PM, Bill Blomgren (kk4qdz) billblomg...@yahoo.com wrote: Tried to find the net today, but 20 is a bit of a mess here in the SE. (My antenna orientation due to available tossing options also may make a shot toward the NW difficult since its orientation is se-nw making it an off the end shot) (Dipole that looks center fed from the outside, but appears physically as end fed...) KK4QDZ - Now with Extra Class Priv's, and a tiny KX3 to enjoy them! From: Phil Shepard ph...@riousa.com To: elecraft@mailman.qth.net elecraft@mailman.qth.net Sent: Sunday, July 21, 2013 8:32 AM Subject: [Elecraft] Elecraft SSB net announcement I will not be available to be the net control station for the net today, and I have not found a replacement. This is a chance for someone to step forward and take the role today. How about one of our regular relays. The net is at 1800Z on 14.3035 MHz. Hope that it goes well. 73, Phil, NS7P __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] XG3: unable to do Firware Upload -works great
BTW, that little XG3 has really been handy. In this recent case, I have a nice LNA the splitter for the 2 meter array. The other day I did a My Bad I jut put the XG3 at the input of that, out there at the splitter, and could see back here that I didn't wreck the low noise pre-amp. Really cool . XG3's so compact that I mounted the connector right to the LNA N-connector . Yup, I like tools that are easy to use and that solve problem Quickly. Hat's off to René for suggesting its use here with the weak signal stuff I fiddle around with. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] K3EXREF query
In this case, the screw head is on one side of the pc board and the washer is on the other side of the pc board! The trick is to move the board in to position vertically and start in the threads without jiggling the washer off of the screw. That's where a small dab of wax or petroleum jelly on the screw threads after the washer has been placed on the screw will help hold the washer in place. Another way of doing is to use a well-magnetized screwdriver. The magnetism will hold both the screw on the screwdriver and the washer on the screw on the opposite side of the board while starting the screw in the threads. Bill, NR4C, noted that he uses a small strip of paper, about 1/4 (0.6cm) wide and about 2 (5 cm) long with a small hole punched through it near one end. After placing the screw through the pc board with the washers in place, the screw is then threaded through the small hole in the paper strip. The paper will keep the lock washer on the side of the pc board opposite the screw head from falling off as the board is moved into position. And then, after the screw is started in the threads, the paper can be torn off of the screw. If the hole is near one end, it tear away cleanly without leaving any scraps behind. Bill said he worked that technique out installing the K3 synthesizer boards that also have lock washers on the opposite side of the board from the screw head. 73, Ron AC7AC -Original Message- From: elecraft-boun...@mailman.qth.net [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Geoffrey Mackenzie-Kennedy Sent: Sunday, July 21, 2013 8:53 AM To: elecraft@mailman.qth.net Subject: Re: [Elecraft] K3EXREF query The most useful tool, which I have found for this type of application, is the simple screw Grabber. Not only can this tool be used to hold a screw and washer(s) while starting the thread, but also while removing a screw and washers. It can also be used to retrieve bits of wire, screws, washers and other small items which may have fallen into difficult to reach places. The tool requires only one hand to hold it during use, and is operated by the thumb of that hand. It is also very inexpensive, about $2, and is available from most of the major stockists. 73, Geoff LX2AO __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] K3EXREF query
Thanks guys for the suggestions. To appreciate the problem one needs to look at Fig's 7 and 9 in the K3EXREF manual. There is no room for tools. Nor do I think any kind of gop is a good idea. (Though if this screw were necessary for grounding I don't think they would have used a split washer but rather inner tooth washers) Upon further reading, the corrections of this module appear to be in ~1Hz steps. I was more interested in something that disciplines the oscillator in a finer more continuous way. 73 de Brian/K3KO On 7/21/2013 16:01, Michael Goins wrote: I've used a little bit of coax seal too many times to count. Stick a bit in the screwdriver tip and it will hold the screw very well.Used t recently re-building a T-8 Tennadyne Log Periodic with lots of difficult to access areas. Didn't drop a one (and they would have gone into the boom and been totally inaccessible). Mike, k5smg Bella-Green Bed Breakfast www.bella-green.com On Sun, Jul 21, 2013 at 10:52 AM, Geoffrey Mackenzie-Kennedy lx...@pt.luwrote: The most useful tool, which I have found for this type of application, is the simple screw Grabber. Not only can this tool be used to hold a screw and washer(s) while starting the thread, but also while removing a screw and washers. It can also be used to retrieve bits of wire, screws, washers and other small items which may have fallen into difficult to reach places. The tool requires only one hand to hold it during use, and is operated by the thumb of that hand. It is also very inexpensive, about $2, and is available from most of the major stockists. 73, Geoff LX2AO On July 20, 2013 at 6:39 PM, Ron D'Eau Claire wrote: You are right that one must be careful to not lose the split lock washer between the KREF3 and the front panel, but testers didn't find the process very difficult to do. What a couple of people who suffered hand tremors reported doing to avoid that lock washer falling off was to put a small drop of petroleum jelly or soft candle wax on the screw after placing the lock washer on it. That kept the washer from easily falling off while they repositioned the KREF3 board and started the screw threads into the fitting on the front panel shield. __**__**__ Elecraft mailing list Home: http://mailman.qth.net/**mailman/listinfo/elecrafthttp://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.**htmhttp://mailman.qth.net/mmfaq.htm Post: mailto:elecr...@mailman.qth.**net 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: 2012.0.2242 / Virus Database: 3204/6008 - Release Date: 07/21/13 - No virus found in this message. Checked by AVG - www.avg.com Version: 2012.0.2242 / Virus Database: 3204/6008 - Release Date: 07/21/13 __ 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] KX3 Receiver Problem
I just unpacked my KX3F after a move. It was hand moved. All I hear is receiver noise. Even 10 MHz is very, very weak. The noise increases when a wire is attached to the antenna, but no stations heard on any band. I hear random birdies across the bands. I am using a 20 foot piece of wire for the temporary receive antenna. I download the latest firmware. Jim K5 HTK __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] Elecraft SSB net announcement
With my antenna roughly perpendicular to where the signal needs to get to the net, I could hear occasional snippets, but not enough there to listen to. I need to rotate the antenna about 90 degrees to make a difference. (Perhaps next week.) - There was a fair bit of activity at 2-3 on 20, so I suspect the dipole is my problem. (I checked with a couple of others in the general area, and they could hear the net nicely.. but with S9 noise, all I could hear was just a few snippets of call signs. sigh However.. NEXT week (with luck) I'll be roughly perpendicular to the current orientation if I can get something over another tree limb. KK4QDZ - Now with Extra Class Priv's, and a tiny KX3 to enjoy them! __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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 Receiver Problem
I would open the unit and check that no boards/cables came lloose. next I would plug a dummy load on and recalibrate it. then I would also put a wire antenna on it and tune to 7.251 or 7.200 and listen. then report back what you swr meter says the s unit is at in receive mode if its higher then 4 or 5 you most likely have something in the new place generating noise. and there for its interfering with your receive signal. but this is only 1 thought. there could be other reasons __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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 Erratic SSB Power Output
Hello K3 Reflector. I have an issue with my new K3/100 #7482. On SSB the peak power output isn't stable. The SSB power output fluctuates about +/- 15% of where it is set, but occasionally spikes to much more. The issue is on all bands but seems worse on 12/10m. I have tested the rig connected straight to a 1kW Bird 50ohm load and have tried 2 different linear power supplies. The problem is present using the two tone test feature, microphone or direct PC audio fed into the rig. The real problem is: I set up my Acom 1000 at the legal limit here (400w) and the power output is all over the place, sometimes 150w, then maybe 500w, then 300w, then all of a sudden the power can spike to 1kW+. I operate mostly CW. Things seem more stable on CW, but compared to my previous Jap rigs (FT1000MP, FT990, TS850) etc, the power output is very difficult to properly regulate. On my previous rigs, I'd set them up to drive the Acom to a certain power level and they'd run for hours rock solid without a peep. I've had an e-mail exchange with a friendly Elecraft Guy which resulted in me redoing the TX Gain calibration, he said the numbers looked good, but the problem persists. I am curious to see if anybody else has this issue and knows of a fix? As it is, the rig isn't much use to me. Cheers Jack G8DX __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] XG3: unable to do Firware Upload
Hi, did you install the latest XG3 .utility software? Guess thats the problem.. 73! Helmut OE1MHL via iPad Am 21.07.2013 um 18:00 schrieb elecraft-requ...@mailman.qth.net: Elecraft] XG3: unable to do Firware Upload __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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 Erratic SSB Power Output
Jack, my K3 is stable, sounds to me that you might have a grounding problem or traces of feedback. Not an inherent problem with the K3 Best regards, Tim Hague, M0AFJ Skype m0afj.Tim Sent on my iPad On 21 Jul 2013, at 20:12, JACK WHITE g...@btinternet.com wrote: Hello K3 Reflector. I have an issue with my new K3/100 #7482. On SSB the peak power output isn't stable. The SSB power output fluctuates about +/- 15% of where it is set, but occasionally spikes to much more. The issue is on all bands but seems worse on 12/10m. I have tested the rig connected straight to a 1kW Bird 50ohm load and have tried 2 different linear power supplies. The problem is present using the two tone test feature, microphone or direct PC audio fed into the rig. The real problem is: I set up my Acom 1000 at the legal limit here (400w) and the power output is all over the place, sometimes 150w, then maybe 500w, then 300w, then all of a sudden the power can spike to 1kW+. I operate mostly CW. Things seem more stable on CW, but compared to my previous Jap rigs (FT1000MP, FT990, TS850) etc, the power output is very difficult to properly regulate. On my previous rigs, I'd set them up to drive the Acom to a certain power level and they'd run for hours rock solid without a peep. I've had an e-mail exchange with a friendly Elecraft Guy which resulted in me redoing the TX Gain calibration, he said the numbers looked good, but the problem persists. I am curious to see if anybody else has this issue and knows of a fix? As it is, the rig isn't much use to me. Cheers Jack G8DX __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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 Erratic SSB Power Output
I second the grounding strap problem. Through heat cycling or whatever, the ground nut of the back of my K3 became loose. Had a series of weird problems with power. Tightened it up and the problems went away. There is also the possibility that the cable between your K3 and the amp is flaky. 73 de Brian/K3KO On 7/21/2013 20:13, Tim Hague wrote: Jack, my K3 is stable, sounds to me that you might have a grounding problem or traces of feedback. Not an inherent problem with the K3 Best regards, Tim Hague, M0AFJ Skype m0afj.Tim Sent on my iPad On 21 Jul 2013, at 20:12, JACK WHITE g...@btinternet.com wrote: Hello K3 Reflector. I have an issue with my new K3/100 #7482. On SSB the peak power output isn't stable. The SSB power output fluctuates about +/- 15% of where it is set, but occasionally spikes to much more. The issue is on all bands but seems worse on 12/10m. I have tested the rig connected straight to a 1kW Bird 50ohm load and have tried 2 different linear power supplies. The problem is present using the two tone test feature, microphone or direct PC audio fed into the rig. The real problem is: I set up my Acom 1000 at the legal limit here (400w) and the power output is all over the place, sometimes 150w, then maybe 500w, then 300w, then all of a sudden the power can spike to 1kW+. I operate mostly CW. Things seem more stable on CW, but compared to my previous Jap rigs (FT1000MP, FT990, TS850) etc, the power output is very difficult to properly regulate. On my previous rigs, I'd set them up to drive the Acom to a certain power level and they'd run for hours rock solid without a peep. I've had an e-mail exchange with a friendly Elecraft Guy which resulted in me redoing the TX Gain calibration, he said the numbers looked good, but the problem persists. I am curious to see if anybody else has this issue and knows of a fix? As it is, the rig isn't much use to me. Cheers Jack G8DX __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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: 2012.0.2242 / Virus Database: 3204/6008 - Release Date: 07/21/13 - No virus found in this message. Checked by AVG - www.avg.com Version: 2012.0.2242 / Virus Database: 3204/6008 - Release Date: 07/21/13 __ 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] Comments on PR6-10 Pre-amplifier
I just wanted to share some comments on the new PR6-10 Pre-amplifier that I just purchased from Elecraft and installed on my K3. On 6 meters I am using a SteppIR 3 element beam, with passive 6 meter element, mounted at approximately 40 ft. Installation and set-up is easy, just follow the instructions included in the pre-amp's manual. During this weekend's CQWW VHF Contest, I used the pre-amp, first with it turned on establishing QSO's with it on 6 meters. After the contact was completed, I then turned the pre-amp off to compare the signals of the stations I had just worked. After completing 42 QSO's, I concluded that approximately 2/3's of the QSO's were possible with the pre-amp. (With the pre-amp off, the signal was gone). On 6 meters I am extremely pleased with the pre-amp's performance and would recommend this pre-amp. I plan to do similar evaluations on 10 meters (and 12 meters also, as the specifications in the manual indicate a frequency range of 22-54 mhz). Rick - W6ENZ __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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 RX AUDIO
I think the audio voice quality has been remedied long ago. What lingers is the high end hiss that I and a few others hear. Apparently this only bothers a minority. On my 5047 it occurs with hi cut of about 2500 and gets worse to 3000. If you run bandwidth 2.1 or below you will never hear it. 2.4 probably hear it some. It's most prevalent scanning a vacant band 6-20. Not as noticeable when people are talking. On the noisier bands I'm not sure you hear it at all. I was on 40 the other night using NR and didn't hear it. This issue in general comes up frequently on other groups and is negative press. It's usually called something like fatigue factor like during a contest. I think some of this is holdover and bad press before the dsp upgrade several years ago. I don't see anything wrong with the audio itself, just the high end hiss. My top 3 eq bands at -16 by the way. Something that comes up also is how well the k handles lightning noise spikes in agc and why can't others do it? That's positive press. 73 Mike R __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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: Zipper
The dreaded K3 'zipper while tuning' appeared suddenly yesterday in the middle of the CQ VHF contest. I've had #1823 since 2008, and never had (heard?) it before, so I didn't pay attention to the comments and 'cures' for it. Silly me. Can someone pse point me in the direction of a fix? Nothing in Fred's book about it. Ralph, VE7XF __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] HF KX-3 Newbie Dave and PSK-31 SUCCESS!
Hello all, Thank you ALL for your help on getting this Macbook Pro HF Elecraft KX-3 NEWBIE on PKS-31! Just had my first 2 contacts this afternoon, this stuff actually works! These folks were invaluable in their elmering (in no particular order): Don, W3FPR Doug, NA1DX Ray, K2ULR Matt, VK2RQ Lyle, KK7P John, W9EN Scott, KB1ZBU Ariel, NY4G Barry, K3NDM John, K7JLT and I just wanted to acknowledge them. Your outreach and taking time out for me … was invaluable. Summarizing my settings for others: FLdigi 3.21.72 on a 15 Macbook Pro with OSX 10.8.3, Griffin iMic and the Elecraft KXUSBa and KX3-PCKT kits for connection. As others have mentioned, the iMic IN is fed by the Elecraft headphone jack, the iMic OUT is fed by the Elecraft KX-3 Mic jack. The iMic is set to MIC switch. The ACC1 connection from the Elecraft is plugged into a USB port on the Mac. VOX is turned ON in the Elecraft and the MIC BTN is set to OFF as well. The Bandwitdth is set to somewhere between 3.0 and 4.0. The Macbook input and output setings (System Prefences, Sound) are set to iMic USB audio system and both are set to 1/2 level. My KX-3 AF setting is set to 20 and the Keyer/Mic (ALC) is set to 4. This just tickles the 5th bar when in ALC mode. PARTICULAR FLDIGI SETTINGS In FLdigi, the Configure, FLdigi configuration, Rig, RigCAT tab points to the (Rig description file) K3.xml. Both Toggle RTS for PTT and Toggle DTR for PTT are also selected. My device (as defined in the KX-3 Utility) is usbserial-AD02DUIQ. In FLdigi, the Configure, FLdigi configuration, Audio, Devices tab has PortAudio checked with both Capture and Playback pointing to the iMic USB audio system In FLdigi, the Configure, FLdigi configuration, Misc, Spotting tab has Automatically spot callsigns in decoded text turned on. In FLdigi, the Configure, FLdigi configuration, Waterfall, Display tab has Monitor transmitted signal turned on. This turns in the upper right corner a Spot button that can be enabled and you can see your PKS-31 output on the http://pskreporter.info/ website. In Fldigi, the SQL button in the lower right is ON and my squelch level is about 1/4 from the bottom. As mentioned, when I transmit, the waterfall now shows my transmission and going to the pskreporter website (map view), I can see my PSK-31 output. My 2 contacts today reported a good 599 from me on the waterfall. Again, thanks to all! If I can be of service to other Mac folks, please don't hesitate to ask. I really do love my Elecraft, it is an amazing and super capable rig. 73, Dave, K6WDE __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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 RX AUDIO
Mike, If that 'hiss' is reduced when the bandwidth is reduced, then it is atmospheric noise that you are hearing, not any internally generated noise. The audio LPF that was added to the DSP board has a cutoff frequency somewhere near 3.4 kHz if I recall. There is little falloff at frequencies lower than that. The K3 does have a very flat passband with steep skirts out to the hi-cut value. I am guessing that the flat passband is what is bothering you. 73, Don W3FPR On 7/21/2013 7:18 PM, mikerodgerske5...@yahoo.com wrote: I think the audio voice quality has been remedied long ago. What lingers is the high end hiss that I and a few others hear. Apparently this only bothers a minority. On my 5047 it occurs with hi cut of about 2500 and gets worse to 3000. If you run bandwidth 2.1 or below you will never hear it. 2.4 probably hear it some. It's most prevalent scanning a vacant band 6-20. Not as noticeable when people are talking. On the noisier bands I'm not sure you hear it at all. I was on 40 the other night using NR and didn't hear it. This issue in general comes up frequently on other groups and is negative press. It's usually called something like fatigue factor like during a contest. I think some of this is holdover and bad press before the dsp upgrade several years ago. I don't see anything wrong with the audio itself, just the high end hiss. My top 3 eq bands at -16 by the way. Something that comes up also is how well the k handles lightning noise spikes in agc and why can't others do it? That's positive press. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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 RX AUDIO
A theory on listening fatigue. There can be many reasons for undesirable listening conditions.background noise, poor TX audio, static and more. What our receivers can't shut out our minds have to deal with. If a received signal is 75% listenable and very Q5, we still have to put mental energy in to shut the 25% that is not useful out of our minds. Turning on such filters in the mind takes mental energy. We may not realize it as we are listening, but it can put one on edge. Given magnitude and time, this filtering can extract a toll.thus 'fatigue.' Dick - KA5KKT __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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: Zipper
Hi swaths the K3 zipper? Sent from my iPhone On 2013-07-21, at 7:34 PM, Ralph Parker ve...@dccnet.com wrote: The dreaded K3 'zipper while tuning' appeared suddenly yesterday in the middle of the CQ VHF contest. I've had #1823 since 2008, and never had (heard?) it before, so I didn't pay attention to the comments and 'cures' for it. Silly me. Can someone pse point me in the direction of a fix? Nothing in Fred's book about it. Ralph, VE7XF __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] KAT100-1 tweak for 40mtrs?
My newly-built KAT100-1 has been working FB very impressed. However, tuning up into a 50-ohm dummyload I get a 1.2 swr reading on 40 meters while perfect readings from 160 to 10 meters!! This doesn't seem right, I rechecked the dummyload into a different rig and my ICOM 746pro shows .1.0 swr using its internal tuner. So, I'm thinking I may need to tweak one the the KAT100-1 inductorsdoes this make sense to the K2 experts in the crowd and if so, which inductor? I notice that if I tune down to 6980khz I get the 1.0 reading. thanks again for the help! 73 Ed __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] KAT100-1 tweak for 40mtrs?
Eddy, I would not advocate doing anything. The KAT100 firmware quits tuning when it determines that the SWR is low enough, and less than 1.5 is generally deemed low enough. The next time you do a TUNE into a dummy load on 40 meters, it may (or may not) be lower. There are stray inductances and capacitances in the tuner that cannot be compensated out by any combination of L and C, or 40 meters may require one of those in-between steps - the minimum step size in the KAT100 is 0.08 uHy inductive and 12 pF capacitive, and those may not be small enough to cancel out the stray reactance in the tuner. An SWR of 1.5 or less at 40 meters is not significant and will not produce significant loss. 73, Don W3FPR On 7/21/2013 8:44 PM, Eddy wrote: My newly-built KAT100-1 has been working FB very impressed. However, tuning up into a 50-ohm dummyload I get a 1.2 swr reading on 40 meters while perfect readings from 160 to 10 meters!! This doesn't seem right, I rechecked the dummyload into a different rig and my ICOM 746pro shows .1.0 swr using its internal tuner. So, I'm thinking I may need to tweak one the the KAT100-1 inductorsdoes this make sense to the K2 experts in the crowd and if so, which inductor? I notice that if I tune down to 6980khz I get the 1.0 reading. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] K3EXREF query
Upon further reading, the corrections of this module appear to be in ~1Hz steps. I was more interested in something that disciplines the oscillator in a finer more continuous way. I have a K3EXREF on order from Aptos, as well as a Trimble Thunderbolt coming via E-Bay. The Trimble Thunderbolt produces two outputs, a 10.00 MHz sine wave and a 1 pps pulse. The 10MHz sine wave will be sent to the EXREF, which will then use that to phase-lock an oscillator internal to the K3. I'll leave it to you to study the EXREF installation/user's manual as well as the K3 schematics (which are downloadable from the Elecraft web site) to see precisely how that's done. But from what I've read so far, if you want sub-Hertz accuracy for the FMTs, etc., you'll need to zero-beat to WWV, count your nulls, and then calculate and apply a correction factor to your measurements. Otherwise, you're going to be looking at some very long integration times to ensure that your local oscillator is at 10.000 MHz (or whatever). There may be some newer devices out there that output a higher frequency reference signal, and if so, I suspect that they would be very, very expensive. My informal research indicates that the Thunderbolt listed at around $1200-$1500 new 10+ years ago, and obviously used ones on E-Bay are much less expensive, but if you were looking for something better than that (a rubidium or cesium oscillator?), the cost will be considerably higher. K5CM has published a couple of interesting papers at his website, http://k5cm.com, and KE5FX's Lady Heather's disciplined oscillator control program web page helps explain some of the short- and long-term frequency tolerance issues at http://www.thegleam.com/ke5fx/heather/readme.htm which would be well worth your while to study. Another good source of information for you might be the Time Nuts: http://www.leapsecond.com/time-nuts.htm Hope that helps! 73, Brandy, N1HO __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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 RX AUDIO
The audio LPF that was added to the DSP board has a cutoff frequency somewhere near 3.4 kHz if I recall. The cutoff is 4.2 KHz - the same as the high limit of the DSP. The K3 does have a very flat passband with steep skirts out to the hi-cut value. I am guessing that the flat passband is what is bothering you. I'm convinced of that ... the vast majority of rigs I've tested over the years have a low-pass roll off characteristic to their audio - generally in the 3 to 6dB per octave range from about 5OO Hz up. This can be simulated in the K3 by setting 400 Hz at 0, 800 at -3, 1600 at -6, 2400 at -8 and 3200 at -9 (3 dB per octave - double for -6 dB per octave). If one couples the 6 dB/octave roll off with a bandwidth of 2.6 KHz (200 - 2800 Hz) there is very little difference in the audio sound between the K3 and other mainline rigs. I prefer to keep my RX EQ flat from 400-2400 Hz, set 3200 at -16 and bring the bandwidth in to 2.4-2.6 KHz. The flat setting at 2400 effectively provides a little intelligibility boost compared to the other rigs for those times I have to use SSB. 73, ... Joe, W4TV On 7/21/2013 7:43 PM, Don Wilhelm wrote: Mike, If that 'hiss' is reduced when the bandwidth is reduced, then it is atmospheric noise that you are hearing, not any internally generated noise. The audio LPF that was added to the DSP board has a cutoff frequency somewhere near 3.4 kHz if I recall. There is little falloff at frequencies lower than that. The K3 does have a very flat passband with steep skirts out to the hi-cut value. I am guessing that the flat passband is what is bothering you. 73, Don W3FPR On 7/21/2013 7:18 PM, mikerodgerske5...@yahoo.com wrote: I think the audio voice quality has been remedied long ago. What lingers is the high end hiss that I and a few others hear. Apparently this only bothers a minority. On my 5047 it occurs with hi cut of about 2500 and gets worse to 3000. If you run bandwidth 2.1 or below you will never hear it. 2.4 probably hear it some. It's most prevalent scanning a vacant band 6-20. Not as noticeable when people are talking. On the noisier bands I'm not sure you hear it at all. I was on 40 the other night using NR and didn't hear it. This issue in general comes up frequently on other groups and is negative press. It's usually called something like fatigue factor like during a contest. I think some of this is holdover and bad press before the dsp upgrade several years ago. I don't see anything wrong with the audio itself, just the high end hiss. My top 3 eq bands at -16 by the way. Something that comes up also is how well the k handles lightning noise spikes in agc and why can't others do it? That's positive press. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] FS: PR6 6 meter preamp
The PR6 is spoken for. Thanks W0SZ __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] Using P3 with other rigs?
I connected the P3 to a Yaesu FTdx-3000 I.F. output and selected the correct rig setup. Works great. I was wondering if anyone has tried to connect the P3 to other transceivers that do not have an I.F. out - such as Icom. 73, Doug -- K0DXV __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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 output increases running PACTOR
I recently began playing with PACTOR. I notice that I adjust the power and mic gain to yield about 50 Watts and the output increases to75 Watts or more in a minuteor so. I set power to 95 Watts in CW, then switch to USB and increase mic gain to yield 50 Watts, in order to avoid audio distortion. Is this not agood way to operate? Is there a better way? Is there anything wrong with the TNC or rig? 73, Red __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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 output increases running PACTOR
I set power to 95 Watts in CW, then switch to USB and increase mic gain to yield 50 Watts, in order to avoid audio distortion. Absolutely backward with the K3. As documented time and time again, set the power to the desired level (e.g., if you want 50W set it for 50W) and adjust the mic gain (Line In level) until you see *five bars* (four with the fifth flickering) and no more of ALC. 73, ... Joe, W4TV On 7/21/2013 10:01 PM, WO0W wrote: I recently began playing with PACTOR. I notice that I adjust the power and mic gain to yield about 50 Watts and the output increases to75 Watts or more in a minuteor so. I set power to 95 Watts in CW, then switch to USB and increase mic gain to yield 50 Watts, in order to avoid audio distortion. Is this not agood way to operate? Is there a better way? Is there anything wrong with the TNC or rig? 73, Red __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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 Erratic SSB Power Output
Jack, G8DX, wrote that his K3 has erratic output. I had the same fault on my kit-built K3 (ser # 6906) In fact my problem was worse, because at times I had no output and, occasionally, the K3 (set to 20w) would drive my Metron Linear Amp with 110w causing the breaker to trip. I followed the instructions from Elecraft support, and the problem improved, but it never went away completely. After 6 months the problem got much worse until output power failed completely. This was a blessing, because it was then easy to trace the fault. The fault was on the LPA board. Diode D1 was not soldered at both ends. Diode D1 is directly in the transmit path. It is a surface-mount device, and is not visible until the 100watt amplifier module is removed. Under the microscope, the contacts of this diode appeared slightly tarnished or dull. In a normal manufacturing process, each circuit board is fitted with a solder mask, and solder paste is wiped across the mask. This deposits exactly the right amount of solder paste on each solder pad. Then a Pick-and-Place machine places the components on the pads. Then, the loaded boards move slowly on a conveyor belt through a re-flow oven. All the connections are made perfectly. This process can occasionally go wrong. Because the contacts on D1 were slightly tarnished, the solder did not flow properly. The problem did not show up during testing at the factory because the contact was still touching the pad. Components come in batches, and if one diode has this problem, there may be other K3s out there with the same problem. If your K3 is showing this symptom, it might be a good idea to take a good look at the connections of D1 on the LPA board. After hand soldering the connections on D1, the output power from my K3 is now rock solid. 73, Roger, VK4YB __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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's HexKey
Is the special edition HexKey still available ? Regards , Greg W6atb Via iPhone Cycle Siren, Inc 877 477-4736 __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] Elecraft's HexKey
Greg, My understanding is that the Elecraft Hex Key has been discontinued. 73, Scott, N9AA On 7/22/13 12:00 AM, Greg Bohning At Gmail wrote: Is the special edition HexKey still available ? Regards , Greg W6atb Via iPhone Cycle Siren, Inc 877 477-4736 __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] Elecraft's HexKey
On Sun, Jul 21, 2013 at 9:00 PM, Greg Bohning At Gmail gregbohn...@gmail.com wrote: Is the special edition HexKey still available ? Nope; http://elecraft.365791.n2.nabble.com/Elecraft-magnetic-Hex-Key-td7576029.html I have one that I might be willing to sell, but I'm not in a hurry to do so ... maybe it's a collector's item now? ;) 73, ~iain / N6ML __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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 RX AUDIO
That could be what it is. The hissy sound that some folks are hearing is probably simply a passband that's unusually flat. Those interested should familiarize themselves with the plots on Barry N1EU's page: http://n1eu.com/K3/K3_notes.htm . So, I am not sure why, if at say, 2.8 kHz you find the hiss objectionable, you wouldn't simply limit the upper cutoff frequency to 2.75 kHz??? I find 3.4 kHz too noisy; I leave my HI CUT frequency far below that point, always. That's why that control is variable. There might be another factor involved. I don't recall if I made this point before-- and I apologize if I am repeating myself-- but I find that hams who grew up copying signals buried in QRM on less-than-perfect receivers tend to do much better later in life dealing with the psychoacoustical effects this thread has morphed into discussing. But this is only an anecdotal observation and I think some psychology student somewhere should do their dissertation on this! The K3 does have a very flat passband with steep skirts out to the hi-cut value. I am guessing that the flat passband is what is bothering you. For a similar reason, we have hams who dislike copying stations who are less than S9. The 'ear-brain filter' that you hear about is an amazing thing, but especially if the skill to use it has been cultivated from a young age. Al W6LX __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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 output increases running PACTOR
Red, The K3 is not like other rigs which tell you to adjust the audio level to control the power output. If you attempt that with the K3 (or KX3 or K2) you will experience power hunting as you describe. Follow the instructions in the manual for DATA modes. Use DATA A submode and adjust the audio drive to produce 4 bars solid on the ALC meter with the 5th bar flickering (That is the onset of ALC, in other words, NO ALC). - you may do that in TX TEST so you do not bother other hams. Once you have adjusted the audio drive, then use the power knob to set your desired power level. 73, Don W3FPR On 7/21/2013 10:01 PM, WO0W wrote: I recently began playing with PACTOR. I notice that I adjust the power and mic gain to yield about 50 Watts and the output increases to75 Watts or more in a minuteor so. I set power to 95 Watts in CW, then switch to USB and increase mic gain to yield 50 Watts, in order to avoid audio distortion. Is this not agood way to operate? Is there a better way? Is there anything wrong with the TNC or rig? 73, Red __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
