Re: [Elecraft] K3 v 3.76 NR Release Notes
It a beautiful thing. Thanks! WW2PT On Jan 25, 2010, at 11:06 PM, Lyle Johnson wrote: Were there other tweeks to NR? Thanks. Roy Morris W4WFB You can set it differently for SSB, AM and CW. 73, Lyle KK7P __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] K3: Why can't I use my 1.8kHz filter for SSB TX?
One possibility is that the rig has only been type approval tested in that configuration, so anyone wanting to operate it with a different filter would require a professional RF spectrum analyzer. Top posted through policy, not belief. Brian Machesney wrote: reflector. The only authoritative information I found information was this from July 2008: Until further information to the contrary is available from Elecraft, you must select the 2.7 or 2.8 filter for SSB, Data and CW transmit. The AM transmit filter must be 6 kHz and the FM transmit filter must be 13 kHz. Any other settings will result in failure and a ERR TXF (Error TX Filter) message. -- David Woolley we do not overly restrict the subject matter on the list, and we encourage postings on a wide range of amateur radio related topics List Guidelines http://www.elecraft.com/elecraft_list_guidelines.htm __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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 setup for Signalink USB and DM780
Setting and suggestions for configuring the Signalink USB with the K3 to use HRD DM780 program would be appreciated. The connections look straight forward but the optimum setting for the K3 will take some testing I suspect. I am hoping to be able to switch between SSB and digital modes without a lot of resetting menus or tweaking settings. Thanks Dan AB3EN - Dan AB3EN -- View this message in context: http://n2.nabble.com/K3-setup-for-Signalink-USB-and-DM780-tp4460277p4460277.html Sent from the [K3] mailing list archive at Nabble.com. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] Using 2nd Rx to reduce noise
Has anyone found a way to use phase cancel external noise heard in the main Rx using the second Rx and a noise antenna Mike W1BNC K2, K3, KPA??? __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] NR adjust on sub?
Should have mentioned that I was unable to set Sub NR after loading beta 3.76 complete with new DSP FW. Sub works great otherwise. jim ab3cv On Mon, Jan 25, 2010 at 11:07 PM, Jim Miller j...@jtmiller.com wrote: I've activated Bset but when I hold the NR button I don't get a Fx-x indication for setting the Sub NR. Didn't see anything in the manual or scanning throught the Config settings. How is this done? tnx jim ab3cv (sub newbie) __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] Using 2nd Rx to reduce noise
Mike Keller wrote: Has anyone found a way to use phase cancel external noise heard in the main Rx using the second Rx and a noise antenna Not internally, but you don't need the KRX3 to do that. You can use an external device such as the DXE NCC-1, MFJ-1025/1026 or Timewave ANC-4 (in order of effectiveness based on personal experience with all 3). Noise canceling works best if the noise is a point source, although it can sometimes help reduce noise from a general direction (such as lightning QRN). http://www.dxengineering.com/Parts.asp?ID=1227PLID=215SecID=114DeptID=12PartNo=DXE-NCC-1 http://www.mfjenterprises.com/Product.php?productid=MFJ-1025 http://www.timewave.com/support/ANC-4/anc4.html 73, Bill -- View this message in context: http://n2.nabble.com/Using-2nd-Rx-to-reduce-noise-tp4460311p4460665.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] NR adjust on sub?
Jim, In that case it should work. Is there any chance you are in either DATA or FM mode? Noise Reduction is N/A for those modes. I don't have the sub here to try it, so perhaps someone who has the sub can try it on their K3 with 3.76 beta firmware. 73, Don W3FPR Jim Miller wrote: Should have mentioned that I was unable to set Sub NR after loading beta 3.76 complete with new DSP FW. Sub works great otherwise. jim ab3cv On Mon, Jan 25, 2010 at 11:07 PM, Jim Miller j...@jtmiller.com wrote: I've activated Bset but when I hold the NR button I don't get a Fx-x indication for setting the Sub NR. Didn't see anything in the manual or scanning throught the Config settings. How is this done? tnx jim ab3cv (sub newbie) __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html No virus found in this incoming message. Checked by AVG - www.avg.com Version: 9.0.730 / Virus Database: 271.1.1/2644 - Release Date: 01/25/10 02:36:00 __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] New K3, no Fast AGC it is same as Slow AGC
An issue that I am having with my K3 is that the Fast AGC actual decay time is the same as the Slow AGC actual decay time. If I adjust the menu decay time for the Fast AGC it has no effect, but if I adjust the menu decay time for the Slow AGC, it effects both the Fast and Slow AGC positions. In effect, I have no Fast AGC. My K3 came with firmware 3.68 and I upgraded to 3.76 but they both have the same problem. Any ideas? Thanks! Dean __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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 V3.76 Beta Firmware (Nabble users please read)
Thanks for the heads up, Leigh. I hadn't noticed Wayne's post. 73, Lou, W0FK Leigh L. Klotz Jr WA5ZNU wrote: Nabble users may have missed the announcement of K3 V3.76 Beta firmware because it appeared in the middle of an old thread about 3.57. http://n2.nabble.com/K3-Beta-Firmware-Rev-3-57-Synchronous-AM-Detection-AM-S-misc-improvements-tp3983997p4457885.html Leigh/WA5ZNU - St. Louis, MO K3 #2513 -- View this message in context: http://n2.nabble.com/K3-V3-76-Beta-Firmware-Nabble-users-please-read-tp4459178p4461287.html Sent from the [K3] mailing list archive at Nabble.com. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] K3 V3.76 Beta Firmware (Nabble users please read)
I hadn't either, hi hi! Leigh/WA5ZNU Thanks for the heads up, Leigh. I hadn't noticed Wayne's post. 73, Lou, W0FK Leigh L. Klotz Jr WA5ZNU wrote: Nabble users may have missed the announcement of K3 V3.76 Beta firmware because it appeared in the middle of an old thread about 3.57. http://n2.nabble.com/K3-Beta-Firmware-Rev-3-57-Synchronous-AM-Detection-AM-S-misc-improvements-tp3983997p4457885.html Leigh/WA5ZNU St. Louis, MO K3 #2513 View message @ http://n2.nabble.com/K3-V3-76-Beta-Firmware-Nabble-users-please-read-tp4459178p4461287.html To unsubscribe from K3 V3.76 Beta Firmware (Nabble users please read), click here (link removed) ==. -- View this message in context: http://n2.nabble.com/K3-V3-76-Beta-Firmware-Nabble-users-please-read-tp4459178p4461381.html Sent from the [K3] mailing list archive at Nabble.com. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] K3: Why can't I use my 1.8kHz filter for SSB TX?
Early versions of the firmware did, in fact, allow transmission through the 2.1kHz filter, and that capability was removed. I suggest that speculation is futile, since there are authoritative sources available. 73, doug Date: Tue, 26 Jan 2010 08:41:18 + From: David Woolley (E.L) for...@david-woolley.me.uk One possibility is that the rig has only been type approval tested in that configuration, so anyone wanting to operate it with a different filter would require a professional RF spectrum analyzer. Top posted through policy, not belief. Brian Machesney wrote: reflector. The only authoritative information I found information was this from July 2008: Until further information to the contrary is available from Elecraft, you must select the 2.7 or 2.8 filter for SSB, Data and CW transmit. The AM transmit filter must be 6 kHz and the FM transmit filter must be 13 kHz. Any other settings will result in failure and a ERR TXF (Error TX Filter) message. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] NR adjust on sub?
It works. You have to be sure you have the Sub Rx turned ON when you attempt to turn NR on or off using b-set 73, Ken K3IU K3 #202 On 1/26/2010 8:58 AM, Don Wilhelm wrote: Jim, In that case it should work. Is there any chance you are in either DATA or FM mode? Noise Reduction is N/A for those modes. I don't have the sub here to try it, so perhaps someone who has the sub can try it on their K3 with 3.76 beta firmware. 73, Don W3FPR Jim Miller wrote: Should have mentioned that I was unable to set Sub NR after loading beta 3.76 complete with new DSP FW. Sub works great otherwise. jim ab3cv On Mon, Jan 25, 2010 at 11:07 PM, Jim Millerj...@jtmiller.com wrote: I've activated Bset but when I hold the NR button I don't get a Fx-x indication for setting the Sub NR. Didn't see anything in the manual or scanning throught the Config settings. How is this done? tnx jim ab3cv (sub newbie) __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html No virus found in this incoming message. Checked by AVG - www.avg.com Version: 9.0.730 / Virus Database: 271.1.1/2644 - Release Date: 01/25/10 02:36:00 __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] K3: ATU but a bigger version
Phil, I have privately requested the same as you suggest. Since there is already a full market of amps... would love to have the auto tuner to work with my THP HL-2.5. The THP auto tuner doesn't quite have what I would like. Even better, I would like a totally remote Elecraft tuner which works at/near the antennas. There are a couple out there, but the cost is amazing for the complicated wiring to them. Would be nice to be fully remote. I did that with an MFJ 994, which worked ok up to 600 watts, but not legal limit. 73, Bill K9YEQ K2 KX1 (Field tester); K3; W2; mini mods -Original Message- From: elecraft-boun...@mailman.qth.net [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Phil Hystad Sent: Monday, January 25, 2010 11:03 PM To: Elecraft Discussion List Subject: [Elecraft] K3: ATU but a bigger version I really like the way that the K3 ATU works. It has that nice push my button and I will tune for you feel to it. But, it is so small. OK, kind of kidding here but it would be nice to have a big legal limit version of this tuner. Sure, a separate bigger box container. I don't really like some of the auto-tuners that I have seen that are in automatic mode and retune behind the scenes (so to say). I like to have some control over my auto-tuner. So, is there any hope that Elecraft might someday build a big 1500 watt capable ATU along the same style as the ATU in the K3? Knowing Elecraft, it would be highly configurable with firmware controlled features and options. And a kit version too of course. 73, phil, K7PEH __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] K3-Delayed Memory Recall in 3.76
Although not specifically mentioned in the release notes, I was very pleased to find the delay feature also works for memories 0-99. The notes in an updated version of the operating manual will need to be amended for this config menu item. Good job again, Wayne! __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] OT: Array's QSK Master wanted
Apologies to the reflector. If you have a QSK Master excess to your needs and would like to lighten your parts counter, please contact me directly don't reply to the list if you would. As we all do know, OT posts should not be recycled on the ongoing mailing list. 73, Gary Gary at ka1j.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] [K2] RX noise level
Hello I've measured K2's RX noise level (antenna terminated on 50 ohm, AGC OFF, AF and RF to max, DMM connected to P5), when PRE is ON N = 0.055v, PRE is OFF N = 0.013v. Are those levels OK for K2? Thanks Sergey. -- View this message in context: http://n2.nabble.com/K2-RX-noise-level-tp4461774p4461774.html Sent from the [K2] mailing list archive at Nabble.com. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] K3 and W2IHY EQ Plus!
My primary goal was to eliminate the high level of background noise from my VHF amplifiers when I operate SSB mode. There are two main approaches to helping mitigate shack noise from Tx audio: Noise Gate and Downward Expansion. A Noise Gate, such as is used in the K3, acts much like an FM squelch does on receive. It looks at Tx audio amplitude and if a signal exceeds that amplitude, it opens the audio path for a certain period of time. Whenever an audio peak exceeds the threshold, the timer is re-triggered. Thus, continuous speech will keep the gate open. The timer is necessary to allow softer parts of speech to pass without distortion. Thus, the Noise Gate is not a clipper or waveform modifier and introduces no crossover or other distortion when it is activated. In this case, the speech overrides the noise source during speech, and the timer silences the audio path when there is no speech. However, if the threshold is too high, then leading edge distortion may result. A Downward Expander changes the gain (slope, or transfer function) of the input amplifier for signals below the threshold. This can result in crossover and other distortion for the low-level components of speech. On the other hand, it may also result in reduced amplitude of the noise source itself even when speech is present due to the slope of the downward expansion. Gating in the form of clipping occurs when the downward expansion slope results in zero gain. The most common misadjustment of the Noise Gate is to set the threshold too close to the noise source's level. This can result in the noise source triggering the audio, resulting in a scratchy or staccato effect. In most cases, *increasing* the threshold beyond that point will result in the desired squelching of the noise source, while still allowing speech to pass. 73, Lyle KK7P __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] Using 2nd Rx to reduce noise
Bill W4ZV wrote: Mike Keller wrote: Has anyone found a way to use phase cancel external noise heard in the main Rx using the second Rx and a noise antenna Not internally, but you don't need the KRX3 to do that. You can use an external device such as the DXE NCC-1, MFJ-1025/1026 or Timewave ANC-4 (in order of effectiveness based on personal experience with all 3). Noise canceling works best if the noise is a point source, although it can sometimes help reduce noise from a general direction (such as lightning QRN). http://www.dxengineering.com/Parts.asp?ID=1227PLID=215SecID=114DeptID=12PartNo=DXE-NCC-1 http://www.mfjenterprises.com/Product.php?productid=MFJ-1025 http://www.timewave.com/support/ANC-4/anc4.html If you have the KXV3 (the so-called 'transverter interface' which is much more than that) you can simply connect the noise canceller between the RX IN and RX OUT. This enables you to avoid using the kludgy relay in the device for t-r switching. Bill, is that in order of increasing or decreasing effectiveness? -- 73, Vic, K2VCO Fresno CA http://www.qsl.net/k2vco __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] K3: ATU but a bigger version (Bill K9YEQ)
Hi, in fact there is no suitable remote legal power limit ATU on the market provides all required functions and capabilities. I am looking for it for long years. Even overpriced gears available are just stupid unusable boxes unfortunately so I agree that something as You are talking about capable to handle more than 1HP (horse power) is highly wanted. 73 - Petr, OK1RP __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] NR adjust on sub?
on my K3 with FW 3.76 loaded I can set NR settings with BSET for the subreceiver, but it is then changed also for the main receiver. I can use NR on the main or sub or for both, but with the same NR settings for the same mode. 73! de Werner OE9FWV Don Wilhelm schrieb am 26 Jan 2010 um 8:58: Jim, In that case it should work. Is there any chance you are in either DATA or FM mode? Noise Reduction is N/A for those modes. I don't have the sub here to try it, so perhaps someone who has the sub can try it on their K3 with 3.76 beta firmware. 73, Don W3FPR Jim Miller wrote: Should have mentioned that I was unable to set Sub NR after loading beta 3.76 complete with new DSP FW. Sub works great otherwise. jim ab3cv On Mon, Jan 25, 2010 at 11:07 PM, Jim Miller j...@jtmiller.com wrote: I've activated Bset but when I hold the NR button I don't get a Fx-x indication for setting the Sub NR. Didn't see anything in the manual or scanning throught the Config settings. How is this done? tnx jim ab3cv (sub newbie) __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html No virus found in this incoming message. Checked by AVG - www.avg.com Version: 9.0.730 / Virus Database: 271.1.1/2644 - Release Date: 01/25/10 02:36:00 -- Make failure your teacher, not your undertaker. Email powered by Pegasus Mail free at http://www.pmail.com Homepage: http://www.qsl.net/oe9fwv/ Fone +43 5522 75013 Fax +43 5522 22505 Mobile +43 664 63 400 14 Fax-Email Gateway +43 820 - 220262990 __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] Using 2nd Rx to reduce noise
On Tue, Jan 26, 2010 at 12:09 PM, Vic K2VCO v...@rakefet.com wrote: Bill W4ZV wrote: Mike Keller wrote: Has anyone found a way to use phase cancel external noise heard in the main Rx using the second Rx and a noise antenna Not internally, but you don't need the KRX3 to do that. You can use an external device such as the DXE NCC-1, MFJ-1025/1026 or Timewave ANC-4 (in order of effectiveness based on personal experience with all 3). Noise canceling works best if the noise is a point source, although it can sometimes help reduce noise from a general direction (such as lightning QRN). http://www.dxengineering.com/Parts.asp?ID=1227PLID=215SecID=114DeptID=12PartNo=DXE-NCC-1 http://www.mfjenterprises.com/Product.php?productid=MFJ-1025 http://www.timewave.com/support/ANC-4/anc4.html If you have the KXV3 (the so-called 'transverter interface' which is much more than that) you can simply connect the noise canceller between the RX IN and RX OUT. This enables you to avoid using the kludgy relay in the device for t-r switching. The KXV3 does make it easier to connect the main antenna, but you may still need to protect the noise antenna input which is not routed through the KXV3. Bill, is that in order of increasing or decreasing effectiveness? Most effective is the DXE NCC-1 (also MUCH more expensive). The MFJ-1025 works reasonably well, especially if you do W8JI's mods below, http://www.w8ji.com/mfj-1025_1026.htm ...but it's more critical to adjust, has a higher internal noise floor and less robust front end. Some have had good luck with the ANC-4 but I personally did not. To do noise canceling internally to the K3, you would need a convenient way to adjust both amplitude and phase. Although amplitude can be done with RF Gain and ATT/PRE, there is presently no adjustment for phase. For ease of use both amplitude and phase adjustments should be large knobs which the K3's ergonomics preclude. For example the easiest to use NCC-1 is nearly the same size as a K3 itself! (4.25 X 9.5 X 9.5) 73, Bill W4ZV __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] RX noise level
Sergey, I would believe they likely are OK - those numbers indicate that you have 12.95 dB gain for your Preamp, and that is near enough to 14 dB expected value shown on the schematic. Note that .013 V = -33.74 dBm and .055 V = -21.21 dBm - simply subtract the two. You should make some allowance for measurement error and round up to 13 dB. If you are concerned about the absolute value of the receiver noise energy, a measurement of that nature is not valid. Measure the MDS of the receiver and that will tell you how the receiver noise will affect your reception. 73, Don W3FPR Sergey Dan wrote: Hello I've measured K2's RX noise level (antenna terminated on 50 ohm, AGC OFF, AF and RF to max, DMM connected to P5), when PRE is ON N = 0.055v, PRE is OFF N = 0.013v. Are those levels OK for K2? Thanks Sergey. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] Using 2nd Rx to reduce noise
On Tue, Jan 26, 2010 at 12:09 PM, Vic K2VCO v...@rakefet.com wrote: Bill W4ZV wrote: Mike Keller wrote: Has anyone found a way to use phase cancel external noise heard in the main Rx using the second Rx and a noise antenna Not internally, but you don't need the KRX3 to do that. You can use an external device such as the DXE NCC-1, MFJ-1025/1026 or Timewave ANC-4 (in order of effectiveness based on personal experience with all 3). Noise canceling works best if the noise is a point source, although it can sometimes help reduce noise from a general direction (such as lightning QRN). http://www.dxengineering.com/Parts.asp?ID=1227PLID=215SecID=114DeptID=12PartNo=DXE-NCC-1 http://www.mfjenterprises.com/Product.php?productid=MFJ-1025 http://www.timewave.com/support/ANC-4/anc4.html If you have the KXV3 (the so-called 'transverter interface' which is much more than that) you can simply connect the noise canceller between the RX IN and RX OUT. This enables you to avoid using the kludgy relay in the device for t-r switching. The KXV3 does make it easier to connect the main antenna, but you may still need to protect the noise antenna input which is not routed through the KXV3. Bill, is that in order of increasing or decreasing effectiveness? Most effective is the DXE NCC-1 (also MUCH more expensive). The MFJ-1025 works reasonably well, especially if you do W8JI's mods below, http://www.w8ji.com/mfj-1025_1026.htm ...but it's more critical to adjust, has a higher internal noise floor and less robust front end. Some have had good luck with the ANC-4 but I personally did not. To do noise canceling internally to the K3, you would need a convenient way to adjust both amplitude and phase. Although amplitude can be done with RF Gain and ATT/PRE, there is presently no adjustment for phase. For ease of use both amplitude and phase adjustments should be large knobs which the K3's ergonomics preclude. For example the easiest to use NCC-1 is nearly the same size as a K3 itself! (4.25 X 9.5 X 9.5) 73, Bill W4ZV __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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: Howto install Beta firmware?
I am new with the K3. How do i install a Beta firmware? Thank's a lot. -- Rubén Navarro Huedo - EA5BZ http://www.palotes.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] My problem with K2
Hi all, I have build KX1 and K1 with no problem but with my (sn. 6871) K2 i'm in trouble. No problem with control board and front panel. I've performed the test of part II: 4 Mhz Oscillator calibration is ok. PLL reference oscillator range test is ok (Fup = 12099 Mhz - Fdown = 12086 Mhz - range 13 kHz) VCO test = 7834 Mhz (???) VCO alignment = no 6V at left of R30! Only 0.018V... and non change adjusting L30. :-( I rewind T5 and verified RP3 (PLL upgrade kit) with non change. Any one can suggest anything? Many tanks in advance for al reply! Vincenzo Calandra (vcalan...@libero.it) - IZ5GVP __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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: ATU but a bigger version (Bill K9YEQ)
Petr, Even though I am the one who started this thread with my question, I need to find out your opinion about the new Palstar Auto Tuner. It is pretty good from what I read and if you read the reviews they are mostly very good. Apparently there had been a few new product type quirks that were overcome by new firmware updates. If nothing is forthcoming from Elecraft as far as news of a product, I will probably buy the Palstar. 73, phil, K7PEH On Jan 26, 2010, at 9:22 AM, Petr Ourednik wrote: Hi, in fact there is no suitable remote legal power limit ATU on the market provides all required functions and capabilities. I am looking for it for long years. Even overpriced gears available are just stupid unusable boxes unfortunately so I agree that something as You are talking about capable to handle more than 1HP (horse power) is highly wanted. 73 - Petr, OK1RP __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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: Howto install Beta firmware?
How do i install a Beta firmware? Please see URL:http://www.elecraft.com/K3/k3_beta_release_instructions.htm 73, Lyle KK7P __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] K3 and W2IHY EQ Plus!
Lyle, given all that, would it be your recommendation to reduce the gain in unwanted bands using the equalizer, or would it be better to increase the gain of the wanted bands, or both to be centered on flat response? 73, Bill K9YEQ K2 KX1 (Field tester); K3; W2; mini mods -Original Message- From: elecraft-boun...@mailman.qth.net [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Lyle Johnson Sent: Tuesday, January 26, 2010 11:02 AM To: Elecraft List Subject: Re: [Elecraft] K3 and W2IHY EQ Plus! My primary goal was to eliminate the high level of background noise from my VHF amplifiers when I operate SSB mode. There are two main approaches to helping mitigate shack noise from Tx audio: Noise Gate and Downward Expansion. A Noise Gate, such as is used in the K3, acts much like an FM squelch does on receive. It looks at Tx audio amplitude and if a signal exceeds that amplitude, it opens the audio path for a certain period of time. Whenever an audio peak exceeds the threshold, the timer is re-triggered. Thus, continuous speech will keep the gate open. The timer is necessary to allow softer parts of speech to pass without distortion. Thus, the Noise Gate is not a clipper or waveform modifier and introduces no crossover or other distortion when it is activated. In this case, the speech overrides the noise source during speech, and the timer silences the audio path when there is no speech. However, if the threshold is too high, then leading edge distortion may result. A Downward Expander changes the gain (slope, or transfer function) of the input amplifier for signals below the threshold. This can result in crossover and other distortion for the low-level components of speech. On the other hand, it may also result in reduced amplitude of the noise source itself even when speech is present due to the slope of the downward expansion. Gating in the form of clipping occurs when the downward expansion slope results in zero gain. The most common misadjustment of the Noise Gate is to set the threshold too close to the noise source's level. This can result in the noise source triggering the audio, resulting in a scratchy or staccato effect. In most cases, *increasing* the threshold beyond that point will result in the desired squelching of the noise source, while still allowing speech to pass. 73, Lyle KK7P __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] NR adjust on sub?
With Sub Rx ON, I can toggle NR ON/OFF in Sub Rx using bset. This does not affect the ON/OFF status of the Main Rx. However, when I change the NR setting (press/hold NR) of the SubRx, that changes both the SubRx and Main Rx setting... just as Werner reports below. 73, Ken K3IU ~ On 1/26/2010 12:52 PM, Dr. Werner Furlan wrote: on my K3 with FW 3.76 loaded I can set NR settings with BSET for the subreceiver, but it is then changed also for the main receiver. I can use NR on the main or sub or for both, but with the same NR settings for the same mode. 73! de Werner OE9FWV Don Wilhelm schrieb am 26 Jan 2010 um 8:58: Jim, In that case it should work. Is there any chance you are in either DATA or FM mode? Noise Reduction is N/A for those modes. I don't have the sub here to try it, so perhaps someone who has the sub can try it on their K3 with 3.76 beta firmware. 73, Don W3FPR Jim Miller wrote: Should have mentioned that I was unable to set Sub NR after loading beta 3.76 complete with new DSP FW. Sub works great otherwise. jim ab3cv On Mon, Jan 25, 2010 at 11:07 PM, Jim Millerj...@jtmiller.com wrote: I've activated Bset but when I hold the NR button I don't get a Fx-x indication for setting the Sub NR. Didn't see anything in the manual or scanning throught the Config settings. How is this done? tnx jim ab3cv (sub newbie) __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html No virus found in this incoming message. Checked by AVG - www.avg.com Version: 9.0.730 / Virus Database: 271.1.1/2644 - Release Date: 01/25/10 02:36:00 __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] K3: ATU but a bigger version
I understand that the announced 2K-FA amplifier from SPE will have the option for remote ATU and antenna switch. Here is the link for the English brochure: http://www.radio-ham.eu/download/Leaflet%20Expert%202K-FA%20inglese.pdf 73 Reinaldo, YV5AMH -Original Message- From: elecraft-boun...@mailman.qth.net [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Bill K9YEQ Sent: Tuesday, January 26, 2010 11:57 To: 'Phil Hystad'; 'Elecraft Discussion List' Subject: Re: [Elecraft] K3: ATU but a bigger version Phil, I have privately requested the same as you suggest. Since there is already a full market of amps... would love to have the auto tuner to work with my THP HL-2.5. The THP auto tuner doesn't quite have what I would like. Even better, I would like a totally remote Elecraft tuner which works at/near the antennas. There are a couple out there, but the cost is amazing for the complicated wiring to them. Would be nice to be fully remote. I did that with an MFJ 994, which worked ok up to 600 watts, but not legal limit. 73, Bill K9YEQ K2 KX1 (Field tester); K3; W2; mini mods -Original Message- From: elecraft-boun...@mailman.qth.net [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Phil Hystad Sent: Monday, January 25, 2010 11:03 PM To: Elecraft Discussion List Subject: [Elecraft] K3: ATU but a bigger version I really like the way that the K3 ATU works. It has that nice push my button and I will tune for you feel to it. But, it is so small. OK, kind of kidding here but it would be nice to have a big legal limit version of this tuner. Sure, a separate bigger box container. I don't really like some of the auto-tuners that I have seen that are in automatic mode and retune behind the scenes (so to say). I like to have some control over my auto-tuner. So, is there any hope that Elecraft might someday build a big 1500 watt capable ATU along the same style as the ATU in the K3? Knowing Elecraft, it would be highly configurable with firmware controlled features and options. And a kit version too of course. 73, phil, K7PEH __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] OT: Palstar
While it's not the Palstar autotuner, I do have the BT1500A for balanced line and it works well. The construction is OUTSTANDING!! 73! Ken elecraftcov...@rfwave.net http://tinyurl.com/7lm3m5 __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] K3: ATU but a bigger version
Oh, but the ~$10k. It is a bit much for me. The 2.5k was already a huge bite on top of the loaded K3 I have. 73, Bill K9YEQ K2 KX1 (Field tester); K3; W2; mini mods -Original Message- From: elecraft-boun...@mailman.qth.net [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Reinaldo Leandro Sent: Tuesday, January 26, 2010 12:39 PM To: 'Elecraft Discussion List' Subject: Re: [Elecraft] K3: ATU but a bigger version I understand that the announced 2K-FA amplifier from SPE will have the option for remote ATU and antenna switch. Here is the link for the English brochure: http://www.radio-ham.eu/download/Leaflet%20Expert%202K-FA%20inglese.pdf 73 Reinaldo, YV5AMH -Original Message- From: elecraft-boun...@mailman.qth.net [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Bill K9YEQ Sent: Tuesday, January 26, 2010 11:57 To: 'Phil Hystad'; 'Elecraft Discussion List' Subject: Re: [Elecraft] K3: ATU but a bigger version Phil, I have privately requested the same as you suggest. Since there is already a full market of amps... would love to have the auto tuner to work with my THP HL-2.5. The THP auto tuner doesn't quite have what I would like. Even better, I would like a totally remote Elecraft tuner which works at/near the antennas. There are a couple out there, but the cost is amazing for the complicated wiring to them. Would be nice to be fully remote. I did that with an MFJ 994, which worked ok up to 600 watts, but not legal limit. 73, Bill K9YEQ K2 KX1 (Field tester); K3; W2; mini mods -Original Message- From: elecraft-boun...@mailman.qth.net [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Phil Hystad Sent: Monday, January 25, 2010 11:03 PM To: Elecraft Discussion List Subject: [Elecraft] K3: ATU but a bigger version I really like the way that the K3 ATU works. It has that nice push my button and I will tune for you feel to it. But, it is so small. OK, kind of kidding here but it would be nice to have a big legal limit version of this tuner. Sure, a separate bigger box container. I don't really like some of the auto-tuners that I have seen that are in automatic mode and retune behind the scenes (so to say). I like to have some control over my auto-tuner. So, is there any hope that Elecraft might someday build a big 1500 watt capable ATU along the same style as the ATU in the K3? Knowing Elecraft, it would be highly configurable with firmware controlled features and options. And a kit version too of course. 73, phil, K7PEH __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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 and W2IHY EQ Plus!
Lyle, given all that, would it be your recommendation to reduce the gain in unwanted bands using the equalizer, or would it be better to increase the gain of the wanted bands, or both to be centered on flat response? In general, I suggest using cuts rather than boosts to shape the passband, unless the range of the cuts are insufficient to achieve the shaping you desire. I apply this approach to Rx as well as Tx EQ. 73, Lyle KK7P __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] K3: Why can't I use my 1.8kHz filter for SSB TX?
Yes but those sources doesn´t speak. / Jim On 2010-01-26 17:16, Doug Faunt N6TQS +1-510-655-8604 wrote: Early versions of the firmware did, in fact, allow transmission through the 2.1kHz filter, and that capability was removed. I suggest that speculation is futile, since there are authoritative sources available. 73, doug Date: Tue, 26 Jan 2010 08:41:18 + From: David Woolley (E.L)for...@david-woolley.me.uk One possibility is that the rig has only been type approval tested in that configuration, so anyone wanting to operate it with a different filter would require a professional RF spectrum analyzer. Top posted through policy, not belief. Brian Machesney wrote: reflector. The only authoritative information I found information was this from July 2008: Until further information to the contrary is available from Elecraft, you must select the 2.7 or 2.8 filter for SSB, Data and CW transmit. The AM transmit filter must be 6 kHz and the FM transmit filter must be 13 kHz. Any other settings will result in failure and a ERR TXF (Error TX Filter) message. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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: Palstar
I owned the auto tuner and felt it was a fine piece of equipment. However, I didn't think the features over the manual tuner was worth the extra 600.00. Sold it and bought the AT2K which is the best manual tuner I have ever owned and the quality is tops. Phil Philip LaMarche LaMarche Enterprises, Inc. www.instantgourmetspices.com www.w9dvm.com 800-395-7795 pin 02 727-944-3226 FAX 727-937-8834 NASFT 30210 K3 #1605 CCA 98 00827 CRA 1701 W9DVM -Original Message- From: elecraft-boun...@mailman.qth.net [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Ken Kopp Sent: Tuesday, January 26, 2010 1:43 PM To: Undisclosed-Recipient:;@mailman.qth.net Subject: [Elecraft] OT: Palstar While it's not the Palstar autotuner, I do have the BT1500A for balanced line and it works well. The construction is OUTSTANDING!! 73! Ken elecraftcov...@rfwave.net http://tinyurl.com/7lm3m5 __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] FW: Re: K3: ATU but a bigger version
Thanks for bringing the notion up, Phil. It seems there is a fair amount of interest in a high power 'remote' ATU as well. If Elecraft takes up the idea of a high power (I'd enjoy a mid-power remote unit at present) ATU, it would 'seem' that the core components could be kitted in two variations. Desktop/Shack version and a Remote version. KATU-800/1500F and KATU-800/1500R... The choice of a remote or fixed ATU outside of the linears adds flexibility the the line. A lower price for an amp without an internal tuner might sell more amps as well. I keep thinking about that 'maybe box the size/style of a K3' mention... 73, Dick - KA5KKT PS It would be interesting to know the demographics of Elecraft users as it relates to operating goals. --- ...is there any hope that Elecraft might someday build a big 1500 watt capable ATU along the same style as the ATU in the K3? Knowing Elecraft, it would be highly configurable with firmware controlled features and options. And a kit version too of course. - 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] NR adjust on sub?
NR settings are per-mode, but they'll be the same for a given mode on each receiver. I.e., you can't (at present) have different NR settings for CW on main vs. CW on sub. NR on/off is per-band/per-receiver. This will be clarified in the next K3 manual (and before that, in the errata). 73, Wayne N6KR With Sub Rx ON, I can toggle NR ON/OFF in Sub Rx using bset. This does not affect the ON/OFF status of the Main Rx. However, when I change the NR setting (press/hold NR) of the SubRx, that changes both the SubRx and Main Rx setting... just as Werner reports below. 73, Ken K3IU ~ On 1/26/2010 12:52 PM, Dr. Werner Furlan wrote: on my K3 with FW 3.76 loaded I can set NR settings with BSET for the subreceiver, but it is then changed also for the main receiver. I can use NR on the main or sub or for both, but with the same NR settings for the same mode. 73! de Werner OE9FWV __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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 and W2IHY EQ Plus!
Still, the adjustment is a bit tricky. A higher threshhold also has loss of softer speech as a side effect. When room-noise and speech approach the same level the gate has a rough time, a common situation in contests/fielddays with people and fan-cooled equipment packed closely together :-) Somehow I still feel a small modification to the open/close slopes could help the gate. A slightly less steep slope at the opening of the gate might prevent over-sensitivity to small spikes or self-modulation by room noise/ LF noises. A gentler slope at closing of the gate will prevent the switching effect you hear. A smooth slope (soft tail-out) would be much less noticable. As it is programmed now I can imagine people think they hear cross-over distortion, a bit similar to SSB with class C amplification. 73' Paul PD0PSB Thus, the Noise Gate is not a clipper or waveform modifier and introduces no crossover or other distortion when it is activated. In this case, the speech overrides the noise source during speech, and the timer silences the audio path when there is no speech. However, if the threshold is too high, then leading edge distortion may result. -- View this message in context: http://n2.nabble.com/K3-and-W2IHY-EQ-Plus-tp4452832p4462931.html Sent from the [K3] mailing list archive at Nabble.com. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] OT: Palstar
Hi Ken, thank You for reply and the tip for the tuner. Unfortunately in case of AT-AUTO 1500 ... - inductor tended to squeal on some units - calibration problems in many cases - antenna mismatches although SWR 1 reported by the logic unit - jamming the inductor coil during an attempted tune-up - some of units does not work even new arrived from factory - memories troubles on some units - stepper motors and crossneedle meter are not suitable for -30C/iced wx - more antennas switch (4-8) not presented ... it is too many reported issues for so overpriced unit. I though about this ATU year ago but I am not able to spend so huge amount for some unreliable gear. Thank You Ken for info. Congrats to Your BT1500A manual tuner which sounds very good. 73 - Petr, OK1RP On Tue, 26 Jan 2010 18:29:55 -, Ken Kopp elecraftcov...@rfwave.net said: While it's not the Palstar autotuner, I do have the BT1500A for balanced line and it's very nice. The construction is OUTSTANDING!! 73! Ken elecraftcov...@rfwave.net http://tinyurl.com/7lm3m5 __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] New K3, no Fast AGC it is same as Slow AGC
I noticed the same thing and found a note about it in the archives (TNX Don, W3FPR). Enabling CW Text Decode forces slow AGC. The Rev B1 Owner's Manual contained this note under Advanced Operating Features on page 31: The K3 uses slow AGC during CW text decode, overriding the selected AGC setting. I don't see the note in the Rev D5 manual but I may have missed it. John, KU4AF Pittsboro, NC -- View this message in context: http://n2.nabble.com/New-K3-no-Fast-AGC-it-is-same-as-Slow-AGC-tp4461039p4462962.html Sent from the [K3] mailing list archive at Nabble.com. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] K3: ATU but a bigger version (Bill K9YEQ)
Dean, thank You very much for Your nice tip. Unfortunately this unit is able to handle 600W key down and mainly the most important antenna's switch is not presented at all. So if will decide for an investment into the remote controlled ATU then definitely I need to serve more than single antenna. Best regards, 73 - Petr, OK1RP On Tue, 26 Jan 2010 09:58:10 -0800, Dean Cookson dean.cook...@gmail.com said: This: http://www.hamware.de/hardware/tuner615U/at615u-d.htm looks somewhat promising... (Google translate does a good-enough job with the German) 73, Dean - W6GS On Tue, Jan 26, 2010 at 9:22 AM, Petr Ourednik indi...@xsmail.com wrote: Hi, in fact there is no suitable remote legal power limit ATU on the market provides all required functions and capabilities. I am looking for it for long years. Even overpriced gears available are just stupid unusable boxes unfortunately so I agree that something as You are talking about capable to handle more than 1HP (horse power) is highly wanted. 73 - Petr, OK1RP __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] Palstar AT-Auto
I am using an AT-Auto with my K3 3779 and is works flawlessly. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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: ATU but a bigger version
Oh yes! I find the K3 ATU just amazing and have often thought how terrific it would be to yank it out of the box and put it outside - and - how REALLY nice it would be to have it scaled up to handle at least 600 watts or even the legal limit - and - work seamlessly with the K3 - and - perhaps a KPA800/1500 (not to start up the we want our amplifiers thread - again!). - Actually, I'd settle for a KPA500 but that's another story! Put me in coach, I want a Big Boy K3 ATU! '73 es gud dxing -- Don N4HH K3/100 #83, etc! --- On Tue, 1/26/10, Phil Hystad k7...@comcast.net wrote: From: Phil Hystad k7...@comcast.net SNIP I really like the way that the K3 ATU works. It has that nice push my button and I will tune for you feel to it. SNIP __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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 and Computer Video
I enjoy using computer programs with my K3. For, me it adds to the enjoyment. I've put a video on YouTube showing my setup, if anyone is interested. I find the ability of several pieces of software to operate together to be fascinating. You can see the video at - http://www.youtube.com/watch?v=cefcFcvbmh8 73 de K1ESE John __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] TEST PSE IGNORE
TEST PSE IGNORE __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] Palstar AT Auto
I have owned a Palstar AT Auto for 18 months with heavy use and it has been flawless. No problems like those cited above. Certainly the best auto tuner I have owned. It has been an exceptional piece of equipment, like my K3. Also, like Phil, I own a Palstar AT2K -- the best modern day manual tuner I have owned. YMMV. Greg K2UM __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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: ATU but a bigger version (Bill K9YEQ)
I've been using a MFJ-998 with my K3/ALS-600 for almost two years now. Works great. I also used it with an ALS-1300 that I had here for about two months, and the MFJ-998 easily handled the higher power of the ALS-1300. The MFJ-998 is primarily used with my 43-foot vertical on all bands. I do have base matching on 160/80 meters, but just the unun interface on 40-10 meters. Phil - AD5X __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] My problem with K2
Vincenzo, Do you have the 'rework eliminators' installed? If so, you changed C71 to 120 pF, and you must also change the secondary menu entry for D19 to Y. If you do not have the rework eliminators and you have not attempted to put in the capacitor change for C71 associated with the K60XV option, then check the value of C71 - it should be 82 pF. What frequency was indicated in the K2 display when you measured the VFO frequency at 7834 kHz? 73, Don W3FPR Vincenzo Calandra wrote: Hi all, I have build KX1 and K1 with no problem but with my (sn. 6871) K2 i'm in trouble. No problem with control board and front panel. I've performed the test of part II: 4 Mhz Oscillator calibration is ok. PLL reference oscillator range test is ok (Fup = 12099 Mhz - Fdown = 12086 Mhz - range 13 kHz) VCO test = 7834 Mhz (???) VCO alignment = no 6V at left of R30! Only 0.018V... and non change adjusting L30. :-( I rewind T5 and verified RP3 (PLL upgrade kit) with non change. Any one can suggest anything? Many tanks in advance for al reply! Vincenzo Calandra (vcalan...@libero.it) - IZ5GVP __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html No virus found in this incoming message. Checked by AVG - www.avg.com Version: 9.0.730 / Virus Database: 271.1.1/2646 - Release Date: 01/26/10 02:46:00 __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] K3 and W2IHY EQ Plus!
On Tue, 26 Jan 2010 10:59:23 -0800, Lyle Johnson wrote: In general, I suggest using cuts rather than boosts to shape the passband, unless the range of the cuts are insufficient to achieve the shaping you desire. I apply this approach to Rx as well as Tx EQ. Yes. In general, it is good audio practice to get rid of as much as possible of the frequency spectrum that is not part of what you're trying to use. In this case, that means maximum cut of at least the two lowest octave bands. Depending on the response of the microphone, it's possible that the third and even the fourth bands should be cut. The best way to home in on settings is to have a good listener tune you in on a receiver set for wide RX bandwidth (at least 2.7kHz), make those cuts, and tell you when you have gone too far. What settings are right, particularly in the higher octave bands, should be made in this way. And when you're deciding, remember that transmit speech below about 400 Hz burns transmit power while making almost no contribution to speech intelligibilty. The octaves between 100 Hz and 400 Hz add body to your voice, but that's all. If you're ragchewing, you may want that. If you're chasing DX, contesting, or running QRP, you don't. 73, Jim Brown K9YC __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] NR adjust on sub?
Operator error: didn't have the Sub turned on when doing the Bset. Working now. tnx jim ab3cv __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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 and Computer Video
Hi, John, Excellent job on the video. It answered some questions I had about both Power SDR and N4PY software. It is one of the best amateur radio videos I have watched on Youtube.com. Heck, if you want another career, I think Hollywood is calling. Seriously, great job and very informative. Thanks so much. 73. Greg K2UM __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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 and Computer Video
Hi John, I enjoyed your video very much! Excellent job and very enjoyable. 73 de N1LQ-Dave __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] the new guy in town
Well, I finally did it - bought a K3/100 kit. I have a K2/100 that I bought from Trey (N5KO) some years ago, and which I take on trips sometimes, but I have really, really wanted to get a K3 for a long time. My problem has been that I use a pair of FT-1000s (one D and one non-D) in SO2R and those two radios just keep on going like the energizer bunny. So, having just gotten a well-deserved bonus, I earmarked a portion of it for the K3. I was going to just leave the boxes unopened in my shack until I got back from Barcelona in mid-February. But, on Sunday morning I decided to open them up. Then, I did a quick inventory. Next thing I knew I was sitting there with an anti-static wristband dumping out the hardware in a white plastic dish. To cut the chase, last night (Monday) I came home from work and finished the kit. And, it worked first time. I think the kit is well conceived. There were only a couple of times I was cussing because I needed to put a 4-40 1/4 screw with lock washer in a place too small to fit my fingers. I felt like a brain surgeon trying to insert the screws with a long-nose pliers and dropping the screw or washer or both numerous times. But, persistence paid off, and it sure is a neat little radio. I have one question (suggestion?) though. After following the directions where you first button it all up without the KPA3, do the LP config and calibration, then pull off the top and bottom covers and install the KPA3, why not just finish the installation of the KPA3, first, then doing the LP and HP stuff, after. Since the KPA3 is not configured by default, you should be able to do the same config and calibration setups with it in place. Then, afterward, configure the KPA3 on and nor and do the HP power calibration. It would safe the hassle of first buttoning it all up, then having to remove the top and lower bottom covers, and then having to reinstall them all again, afterward. Not a big thing - maybe an extra 10 or 15 minutes? Over all, though, a very well engineered product and kit. Kudos to Eric and Wayne. Rob K6RB __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] the new guy in town
Rob, You apparently have a good deal of confidence in your building and assembly skills - that is great, but not all have the same confidence level, and the checks at the Low power level are important to those who do not also have that confidence level. The manual speaks to the lowest common denominator so those who need verification that the low power stages work properly will have that validation. The result is an orderly process - the basic K3 works, and if the KPA3 causes problems, one should look to the KPA3 or the steps that were done during the installation of the KPA3. For those who have great confidence levels (and good troubleshooting skills), you are free to do it any way that works for you. For the average K3 builder, the situation is not the same. Consider the K2 situation - I have confidence that I can find any problem in a complete K2, so if I build one for a client, I skip the intermediate test and alignment parts, and wait until the assembly is complete before beginning alignment and test. That approach usually saves me time, but at times it causes me to dig into the K2 to find what is the problem source. Yes, my experience level allows me to do that efficiently, but new builders do not have that experience level - hence the instructions are geared to test the configuration that has been assembled before moving to the next step. 73, Don W3FPR k...@baymoon.com wrote: Well, I finally did it - bought a K3/100 kit. I have a K2/100 that I bought from Trey (N5KO) some years ago, and which I take on trips sometimes, but I have really, really wanted to get a K3 for a long time. My problem has been that I use a pair of FT-1000s (one D and one non-D) in SO2R and those two radios just keep on going like the energizer bunny. So, having just gotten a well-deserved bonus, I earmarked a portion of it for the K3. I was going to just leave the boxes unopened in my shack until I got back from Barcelona in mid-February. But, on Sunday morning I decided to open them up. Then, I did a quick inventory. Next thing I knew I was sitting there with an anti-static wristband dumping out the hardware in a white plastic dish. To cut the chase, last night (Monday) I came home from work and finished the kit. And, it worked first time. I think the kit is well conceived. There were only a couple of times I was cussing because I needed to put a 4-40 1/4 screw with lock washer in a place too small to fit my fingers. I felt like a brain surgeon trying to insert the screws with a long-nose pliers and dropping the screw or washer or both numerous times. But, persistence paid off, and it sure is a neat little radio. I have one question (suggestion?) though. After following the directions where you first button it all up without the KPA3, do the LP config and calibration, then pull off the top and bottom covers and install the KPA3, why not just finish the installation of the KPA3, first, then doing the LP and HP stuff, after. Since the KPA3 is not configured by default, you should be able to do the same config and calibration setups with it in place. Then, afterward, configure the KPA3 on and nor and do the HP power calibration. It would safe the hassle of first buttoning it all up, then having to remove the top and lower bottom covers, and then having to reinstall them all again, afterward. Not a big thing - maybe an extra 10 or 15 minutes? Over all, though, a very well engineered product and kit. Kudos to Eric and Wayne. Rob K6RB __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] Robert Friess's 100watt amp
Hey Gang, Is anyone using the 100 watt amp shown on the Elecraft Hands-On page? Tnx, N1BBR -- bw...@fastmail.net __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] N2CQ QRP Contest Calendar: Jan 27 - Feb 26, 2010
~ N2CQ QRP CALENDAR Jan 27 to Feb 26, 2010 ~ 80 METER FOXHUNT (CW) *** QRP Contest *** Each Tuesday Thru Mar 16, 2010 9 PM to 10:29 PM Eastern Time USA Info: http://www.qrpfoxhunt.org ~ 40 METER FOXHUNT (CW) *** QRP Contest *** Each Thursday Thru Mar 18, 2010 9 PM to 10:29 PM Eastern Time USA Info: http://www.qrpfoxhunt.org/ ~ SKCC Sprint (Straight Key CW) ... QRP Awards Jan 27, z to 0200z Rules: http://www.skccgroup.com/sprint/sks/ ~ NAQCC's 160m QRP Sprint *** QRP Contest *** Jan 28, 0130z to 0330z Rules: http://home.windstream.net/yoel/contests.html ~ CQ WW 160-Meter DX Contest (CW) ... QRP Category Jan 29, 2200z to Jan 31, 2200z Rules: http://www.cq160.com/rules.htm ~ UBA DX Contest (Belgian) (SSB) ... QRP Category Jan 30, 1300z to Jan 31, 1300z Rules: http://www.uba.be/sites/default/files/uploads/hf_contests/ubatest_dx.pdf ~ SPAR Winter Field Day (Any Mode) ... Portable Battery Points Jan 30, 1700z to Jan 31, 1700z Rules: http://www.spar-hams.org/contests/winterfd/index.php?pg=2 ~ Adventure Radio Spartan Sprint (CW) ... QRP Contest! EST: Feb 1, 9 PM to 11 PM (First Monday each month) UTC: Feb 2, 0200z to 0400z Rules: http://adventure-radio.org/wiki/index.php?title=Main_Page ~ Vermont QSO Party (CW/PH/Dig) ... QRP Category Feb 6, z to Feb 7, 2400z Rules: http://vtqsoparty.westriverradio.org/ ~ 10-10 Int. Winter Phone QSO Party ... QRP Category Feb 6, 0001z to Feb 7, 2359z Rules: http://www.ten-ten.org/Forms/QSOPartyRulesRevised.pdf ~ Black Sea Cup International (CW/SSB) ... QRP Category Feb 6, 1200z to Feb 7, 1200z Rules: http://bscc.ucoz.ru/index/0-21 ~ Minnesota QSO Party (All) ... QRP Category Feb 6, 1400z to 2359z Rules: http://www.w0aa.org/ ~ FYBO Winter QRP Field Day (CW/SSB) ... QRP Contest! Feb 6, 1400z to 2400z Rules: http://www.azscqrpions.org ~ AGCW Straight Key QSO Party (CW 80M) ... QRP Category Feb 6, 1600z to 1900z Rules: http://www.agcw.org/en/?Contests:Straight_Key_Party ~ British Columbia QSO Party (CW/PH/Dig) ... QRP Category Feb 6, 1600z to Feb 7, 0759z Rules: http://www.deltaamateurradio.com/BC%20QSO%20CONTEST.htm ~ Delaware QSO Party (All) ... QRP Category Feb 6, 1700z to Feb 7, 2359z Rules: http://www.fsarc.org/DEQSO.html ~ North American Sprint (CW) ... QRP Category Feb 7, z to 0400z Rules: http://www.ncjweb.com/sprintrules.php ~ New Mexico QSO Party (CW/PH/Dig) ... QRP Category Feb 7, 1500z to Feb 8, 0300z Rules: http://pages.swcp.com/~n5zgt/nmqsoparty/index.html ~ QRP ARCI Fireside Sprint (SSB) ...QRP Contest! Feb 7, 2000z to 2359z Rules: http://www.qrparci.org/ ~ NAQCC Straight Key/Bug Sprint (CW) *** QRP Contest *** EST: Feb 9, 8:30 PM to 10:30 PM UTC: Feb 10, 0130Z to 0330Z Rules: http://home.windstream.net/yoel/contests.html ~ CWops Mini-CWT Test (CW) ... QRP Category Feb 10, 1100z to 1200z and Feb 10, 1900z to 2000z and Feb 11, 0300z to 0400z Rules: http://www.cwops.org/onair.html ~ Valentine Sprint (PODXS) (PSK-31) ... QRP Category Feb 12, 8 PM to Feb 13, 2 AM LOCAL TIME Rules: http://www.podxs070.com/valentine-sprint ~ CQ WW RTTY WPX Contest ... Low Power Category Feb 13, z to Feb 14, 2359z Rules: http://www.cqwpxrtty.com/ ~ Dutch PACC Contest (SSB/CW) ... QRP Category Feb 13, 1200z to Feb 14, 1200z Rules: http://pacc.veron.nl/ ~ Louisiana QSO Party (Ph/CW) Feb 13, 1500z to Feb 14, 0300z Rules: http://www.qsl.net/kd5wdy/LAQSO_/laqso_.html ~ FISTS Winter
[Elecraft] K3 DRAKE R4C Emulation
K3BSR v7.1 http://www.zerobeat.net/mediawiki/index.php/K3_DRAKE_R4C_Emulation __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] Any help with concepts about BFO and TX offset alignment?
Hello all, I'm progressing on my build of K1 #2822 and I've hit a conceptual block in my understanding of an aspect of the alignment process. I apologise if this has been discussed before on this list. I've read through the archives and can't find a very clear explanation. I'm hoping someone can help out. It relates to what I'm actually doing when adjusting the Tx offset with C13. This is what I understand to be true: I've chosen 600hz as my sidetone and the audio tone I want to hear receiving CW. I need to adjust the BFO frequency to be 600hz above the carrier frequency of the received signal, in order to hear that 600hz beat tone. If the BFO offset is set 600hz above the received carrier, then when I hear the 600hz tone on receive, I know that I'm zero beat with that station and that the frequency indicated on the K1 display will be that station's carrier frequency and also MY transmit frequency, key down. I adjust this BFO offset as described in the manual, using C20 and the K1's generated 600hz sidetone as the reference audio signal. This sets the BFO frequency at 600hz above the carrier. I've got a good musical ear, so doing that is not a challenge for me. What I don't understand is what I'm actually doing in the next step - adjusting Transmit offset, with C13? I think I understand the concept of the BFO offset, but I don't know why I also need to alter my transmitted carrier frequency. I see that C13 is pulling up/down the crystal oscillator frequency @ the Tx mixer. In the end, when properly configured, I want the frequency displayed on the K1 to indicate the carrier frequency of my transmitted signal. I want to hear 600hz audio when I'm tuned to the carrier frequency of a station I'm receiving. So, why is it necessary to adjust my Transmit/carrier frequency with C13? Sorry if this is a naive question, but I'm new to all this and have never had to think it through before. Many thanks to all, John VK7JB __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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 control software linux wine
Has anyone had any luck running with control software for the K3 running under Linux? In particular, if anyone has run the N4PY software under the wine emulator, I would like to hear your opinions about it. Bob K4ERR __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] Any help with concepts about BFO and TX offset alignment?
John, Spectrogram helps, so go to www.n0ss.net and read the details. Do the following steps in order: 1) set the BFO frequency to position the center of the FL3 passband at your chosen sidetone pitch (600 Hz in your case)/ 2)Then with Spectrogran still active, set the switch on the bottom of the K1 to the TEST position and adjust C13 to produce a peak response at your chosen sidetone pitch (600 Hz). That is all there is to aligning the TX offet to your chosen sidetone pitch. Set the switch on the bottom of the K1 RF board to OPER and go on with the other alignment procedures. If you choose not to use Spectrogram, then follow the instructions in the manual - both will produce the correct results - Spectrogram does provide a visual display that many find easy to use. After those alignments, you should do the CAL OPF on each band to make the received frequency correct on the K1 display. The order of these adjustments is important, attempting to do the CAL OPF before aligning the BFO passband and adjusting the TX offset will lead to frustration. 73, Don W3FPR Dr John H Farmer wrote: Hello all, I'm progressing on my build of K1 #2822 and I've hit a conceptual block in my understanding of an aspect of the alignment process. I apologise if this has been discussed before on this list. I've read through the archives and can't find a very clear explanation. I'm hoping someone can help out. It relates to what I'm actually doing when adjusting the Tx offset with C13. This is what I understand to be true: I've chosen 600hz as my sidetone and the audio tone I want to hear receiving CW. I need to adjust the BFO frequency to be 600hz above the carrier frequency of the received signal, in order to hear that 600hz beat tone. If the BFO offset is set 600hz above the received carrier, then when I hear the 600hz tone on receive, I know that I'm zero beat with that station and that the frequency indicated on the K1 display will be that station's carrier frequency and also MY transmit frequency, key down. I adjust this BFO offset as described in the manual, using C20 and the K1's generated 600hz sidetone as the reference audio signal. This sets the BFO frequency at 600hz above the carrier. I've got a good musical ear, so doing that is not a challenge for me. What I don't understand is what I'm actually doing in the next step - adjusting Transmit offset, with C13? I think I understand the concept of the BFO offset, but I don't know why I also need to alter my transmitted carrier frequency. I see that C13 is pulling up/down the crystal oscillator frequency @ the Tx mixer. In the end, when properly configured, I want the frequency displayed on the K1 to indicate the carrier frequency of my transmitted signal. I want to hear 600hz audio when I'm tuned to the carrier frequency of a station I'm receiving. So, why is it necessary to adjust my Transmit/carrier frequency with C13? Sorry if this is a naive question, but I'm new to all this and have never had to think it through before. Many thanks to all, John VK7JB __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] New K3, no Fast AGC it is same as Slow AGC
Turning off the text decode solved the problem, I now have a fast and a slow AGC. Thanks! (And thanks to Elecraft for the great customer service!) -- View this message in context: http://n2.nabble.com/New-K3-no-Fast-AGC-it-is-same-as-Slow-AGC-tp4461039p4465275.html Sent from the [K3] mailing list archive at Nabble.com. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] K3 DRAKE R4C Emulation
Dear Don, That's great. I really miss my old R4C. 73, Dick, KA1SA At 09:51 PM 1/26/2010, Don Rasmussen wrote: K3BSR v7.1 http://www.zerobeat.net/mediawiki/index.php/K3_DRAKE_R4C_Emulation __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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 DRAKE R4C Emulation
Wow! Makes me want to build a physical R-4C shell with a serial interface on the back that's just a front end for a variety of modern rigs :). There might even be a market for the micro-controller kit! On Tue, 26 Jan 2010, Richard S. Lindzen wrote: Dear Don, That's great. I really miss my old R4C. 73, Dick, KA1SA At 09:51 PM 1/26/2010, Don Rasmussen wrote: K3BSR v7.1 http://www.zerobeat.net/mediawiki/index.php/K3_DRAKE_R4C_Emulation __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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
