[Elecraft] [K3] Magic CW box and PIC programming
Hi All, I still walk around with my idea of building a little box with 6 to 8 stereo jacks on the front and one or two outputs to key-in to tranceiver(s). The idea is that everybody wires a key or paddle differently. (straight key to tip, sleeve or both; single paddle to tip, sleave or both; double paddle left to tip right to sleeve or just other way around)? The idea is to plug in the key or paddle, push key down for a sec or tip paddle left-right and the little box automatically discovers how the input is wired. All inputs are matched to the respective outputs without having to take a soldering iron. My idea is to program this in PIC buti am no PIC programmer. Bought a compiler but was very disencouraged after printing centimeters of manual. Maybe PIC expeter CW operators on the line? Let me know your thoughts Thanks, Dick PA3CW -- View this message in context: http://n2.nabble.com/Magic-CW-box-and-PIC-programming-tp3978221p3978221.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] K2 KIO2 Polling Noise in PC Speakers w/ HRD
Brian, There may be a potential difference (voltage) between your PC chassis and the K2. Try bonding them together (with a wire) to see if that helps. No guarantees, but it is worth a try. 73, Don W3FPR N5BCN wrote: > (K2 #6800 w/ KSB2 KIO2 KAT2 KNB2) > > Hi, > > My first post to the reflector. :-) > > I recently completed the KIO2 module (without KPA100) and have been > controlling the K2 via HRD v5.0. I'm passing the K2 audio via the K2 EXT > SPKR connection to the the PC Mic In and out to PC Speakers. All is well > EXCEPT for an annoying buzzing noise coming through the PC Speakers that is > caused by HRD polling the K2. I know this because when I change the polling > interval, the noise changes accordingly. Also, when I disconnect HRD from > the K2, the noise goes away. Even holding down a button, which pauses the > HRD/K2 polling, causes the noise to cease. Of course it starts up as soon > as I release the mouse button. > > __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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 Clean or replace AF Gain control?
Tom, The "Alternate AF Gain Wiring" change is present on the board wiring of all K2s with a SN greater than 3000. 73, Don W3FPR kg3vt...@gmail.com wrote: > Don, > > Mine is SN 5848 (I think), so does that mean the "alternate wiring > mod" does not apply? I am sure this pot was not like this from the > original build. I also suspected that it may be pointless to try and > clean it. I will replace the two. > > If this is something that will happen after a couple years, maybe I > should buy a few of them (or look for a higher quality/cost > replacement part). > > Thanks and 73, > > Tom, KG3V > > > On Nov 10, 2009 3:27am, Don Wilhelm wrote: > > Tom, > > > > > > > > If the K2 SN is below SN 3000, then I would suggest the Alternate AF > Gain wiring mod be done. If the pot still is noisy, then replace the pot. > > > > For SN above 3000, just replace the pot. The use of cleaners is > "iffy" IMHO - if the pot is worn, no cleaner in the world will help it > on a permanent basis - any improvement will be short lived. Besides, > it is difficult to ge any cleaner inside the pots used in the K2. > > > > > > > > 73, > > > > Don W3FPR > > > > > > > > kg3vt...@gmail.com wrote: > > > > > > I just noticed my K2 has a problem with the AF Gain control. It is > "scratchy" in the area where I use it most. I see that the RIT control > (rarely used) also has some linearity issues. The rig is about three > years old. I do not use it on a daily basis, but I do use it in > contests , where it gets stressed pretty well. > > > > > > > > I must either clean or replace the AF Gain control ASAP, and I see > it will be rather hard to get at. Can anyone tell me if these > controls can be accessed to clean them, or should I just order > replacement parts? It would help to know before I tear the rig apart. > > > > > > > > Thanks and 73, > > > > > > > > Tom, KG3V > > > > __ > > > > Elecraft mailing list > > > > Home: http://mailman.qth.net/mailman/listinfo/elecraft > > > > Help: http://mailman.qth.net/mmfaq.htm > > > > Post: mailto: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: 9.0.698 / Virus Database: > 270.14.56/2491 - Release Date: 11/09/09 02:39:00 > > > > > > > > > > > > > > > > No virus found in this incoming message. > Checked by AVG - www.avg.com > Version: 9.0.698 / Virus Database: 270.14.56/2491 - Release Date: 11/09/09 > 02:39:00 > > __ 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] K2 KIO2 Polling Noise in PC Speakers w/ HRD
(K2 #6800 w/ KSB2 KIO2 KAT2 KNB2) Hi, My first post to the reflector. :-) I recently completed the KIO2 module (without KPA100) and have been controlling the K2 via HRD v5.0. I'm passing the K2 audio via the K2 EXT SPKR connection to the the PC Mic In and out to PC Speakers. All is well EXCEPT for an annoying buzzing noise coming through the PC Speakers that is caused by HRD polling the K2. I know this because when I change the polling interval, the noise changes accordingly. Also, when I disconnect HRD from the K2, the noise goes away. Even holding down a button, which pauses the HRD/K2 polling, causes the noise to cease. Of course it starts up as soon as I release the mouse button. I believe the noise is being picked up by the PC Sound Card. When I connect the PC Speakers directly to the K2 EXT SPKR port (bypassing the PC sound card), there is no polling noise. I've also tried the following to no avail: 1) Tried both Line In and Mic In on the PC. No difference. 2) Connected the KIO2 Serial Cable to both a USB/Serial adapter and a PCI Card with a DB9 Serial connector. No difference. 3) Tried connecting the KIO2 Serial Cable Pin 1 to the bare shield wire on the PC side vs no connection to Pin 1. No difference. 4) Tried "dressing" the cables inside the K2 so the KIO2 wires were far from the RF Board. No difference, despite holding the KIO2 and cabling as physically far away as possible from the RF Board. 5) Tried routing the audio patch cable from the K2 to the PC as far away as possible from the KIO2 Serial Cable. No difference. Has anyone else experienced this, and if so, have you found a solution? Any suggestions would be most appreciated. 73 Brian N5BCN -- View this message in context: http://n2.nabble.com/K2-KIO2-Polling-Noise-in-PC-Speakers-w-HRD-tp3978029p3978029.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] I screwed up.
Paul, Make sure you don't have a key, keyer, or something else plugged in that's continuously keyed. Might even been the computer, so try disconnecting it. You might have the CONFIG:PTT-KEY menu entry set to have the computer key the rig. If you can't figure it out, email k3support. 73, Wayne N6KR On Nov 9, 2009, at 4:08 PM, Dave Hachadorian wrote: > What happens if you just unplug the serial cable before you turn > on the rig? > > Dave Hachadorian, K6LL > Yuma, AZ > > > - Original Message - > From: "PAUL VANOVEREN" > To: "ELECRAFT REFLECTOR" > Cc: "Gary Surrency" > Sent: Monday, November 09, 2009 1:47 PM > Subject: [Elecraft] I screwed up. > > >> Playing around with my K3 serial # 756 and the setting for >> N1MM and changed the DTR-RTS, or PTT settings and now the radio >> is in transmit always on the 60 meter band and when I push the >> MENU, COFIG button, the firmware version comes up, but if I >> rotate the B VFO to try and get to some other menu item, it >> locks up, turning to the right bet to FL1 and locks and turing >> to the right byp kat3 and locks up. Is there some way to do >> a soft or hard reset and bring everything back to the default >> settings ??? Can't find it in the owners manual...sorry.. >> >> Paul NF8J... >> __ >> Elecraft mailing list >> Home: http://mailman.qth.net/mailman/listinfo/elecraft >> Help: http://mailman.qth.net/mmfaq.htm >> Post: mailto: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] I screwed up.
What happens if you just unplug the serial cable before you turn on the rig? Dave Hachadorian, K6LL Yuma, AZ - Original Message - From: "PAUL VANOVEREN" To: "ELECRAFT REFLECTOR" Cc: "Gary Surrency" Sent: Monday, November 09, 2009 1:47 PM Subject: [Elecraft] I screwed up. > Playing around with my K3 serial # 756 and the setting for > N1MM and changed the DTR-RTS, or PTT settings and now the radio > is in transmit always on the 60 meter band and when I push the > MENU, COFIG button, the firmware version comes up, but if I > rotate the B VFO to try and get to some other menu item, it > locks up, turning to the right bet to FL1 and locks and turing > to the right byp kat3 and locks up. Is there some way to do > a soft or hard reset and bring everything back to the default > settings ??? Can't find it in the owners manual...sorry.. > > Paul NF8J... > __ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto: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] K2 Clean or replace AF Gain control?
It applies especially if the noisy area is near full counter-clockwise rotation (minimum gain) and it's an old K2 that was never modified. In the original design, the K2's audio gain pot acted as a shunt across the audio line. As you rotated it counter-clockwise (CCW) it literally "shorted" out the audio, reducing the speaker/phones output. That worked fine, but it also resulted in many K2's being operated near full CCW. As it happens most pots tend to be noisier near minimum resistance so normal pot wear caused them to sound "scratchy" in a fairly short time. The mod alters the circuit to use the pot in a more normal way. It has two advantages: 1) The pot is seldom (if ever) used in the near-minimum area where it tends to be scratchy and 2) the action of the pot is more nearly logarithmic, producing the sort of change in gain as the pot is rotated we normally see in audio gain controls. Ron AC7AC -Original Message- Does this app note apply here? Application Note: Alternative Wiring for the K2's AF GAIN Control Wayne Burdick, N6KR, with illustrations by Tom Hammond, N0SS Oct. 25, 2001 This optional modification greatly reduces the level of noise or other artifacts that might be heard on a small number of K2s when rotating the AF GAIN potentiometer. Pots judged as "noisy" are, in fact, probably good; the original circuit is simply sensitive to the pots' inherent non-linearities. In addition to eliminating most pot noise, the new circuit provides nearly dead silence when the control is fully CCW, while the old circuit allowed a small amount of leak-through. You can find the whole note in K2/K1 applications. Original message > >I just noticed my K2 has a problem with the AF Gain control. It >is "scratchy" in the area where I use it most. I see that the RIT control >(rarely used) also has some linearity issues. The rig is about three years >old. I do not use it on a daily basis, but I do use it in contests , where >it gets stressed pretty well. > >I must either clean or replace the AF Gain control ASAP, and I see it will >be rather hard to get at. Can anyone tell me if these controls can be >accessed to clean them, or should I just order replacement parts? It would >help to know before I tear the rig apart. > >Thanks and 73, > >Tom, KG3V __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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 Clean or replace AF Gain control?
Tom, If the K2 SN is below SN 3000, then I would suggest the Alternate AF Gain wiring mod be done. If the pot still is noisy, then replace the pot. For SN above 3000, just replace the pot. The use of cleaners is "iffy" IMHO - if the pot is worn, no cleaner in the world will help it on a permanent basis - any improvement will be short lived. Besides, it is difficult to ge any cleaner inside the pots used in the K2. 73, Don W3FPR kg3vt...@gmail.com wrote: > I just noticed my K2 has a problem with the AF Gain control. It > is "scratchy" in the area where I use it most. I see that the RIT control > (rarely used) also has some linearity issues. The rig is about three years > old. I do not use it on a daily basis, but I do use it in contests , where > it gets stressed pretty well. > > I must either clean or replace the AF Gain control ASAP, and I see it will > be rather hard to get at. Can anyone tell me if these controls can be > accessed to clean them, or should I just order replacement parts? It would > help to know before I tear the rig apart. > > Thanks and 73, > > Tom, KG3V > __ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto: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: 9.0.698 / Virus Database: 270.14.56/2491 - Release Date: 11/09/09 > 02:39:00 > > __ 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] K2 Clean or replace AF Gain control?
Does this app note apply here? Application Note: Alternative Wiring for the K2's AF GAIN Control Wayne Burdick, N6KR, with illustrations by Tom Hammond, N0SS Oct. 25, 2001 This optional modification greatly reduces the level of noise or other artifacts that might be heard on a small number of K2s when rotating the AF GAIN potentiometer. Pots judged as "noisy" are, in fact, probably good; the original circuit is simply sensitive to the pots' inherent non-linearities. In addition to eliminating most pot noise, the new circuit provides nearly dead silence when the control is fully CCW, while the old circuit allowed a small amount of leak-through. You can find the whole note in K2/K1 applications. Original message >Date: Tue, 10 Nov 2009 02:35:10 + >From: kg3vt...@gmail.com >Subject: [Elecraft] K2 Clean or replace AF Gain control? >To: Elecraft@mailman.qth.net > >I just noticed my K2 has a problem with the AF Gain control. It >is "scratchy" in the area where I use it most. I see that the RIT control >(rarely used) also has some linearity issues. The rig is about three years >old. I do not use it on a daily basis, but I do use it in contests , where >it gets stressed pretty well. > >I must either clean or replace the AF Gain control ASAP, and I see it will >be rather hard to get at. Can anyone tell me if these controls can be >accessed to clean them, or should I just order replacement parts? It would >help to know before I tear the rig apart. > >Thanks and 73, > >Tom, KG3V >__ >Elecraft mailing list >Home: http://mailman.qth.net/mailman/listinfo/elecraft >Help: http://mailman.qth.net/mmfaq.htm >Post: mailto: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] K2 Clean or replace AF Gain control?
I just noticed my K2 has a problem with the AF Gain control. It is "scratchy" in the area where I use it most. I see that the RIT control (rarely used) also has some linearity issues. The rig is about three years old. I do not use it on a daily basis, but I do use it in contests , where it gets stressed pretty well. I must either clean or replace the AF Gain control ASAP, and I see it will be rather hard to get at. Can anyone tell me if these controls can be accessed to clean them, or should I just order replacement parts? It would help to know before I tear the rig apart. Thanks and 73, Tom, KG3V __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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: new feature idea / question
I was just reading about the differing levels of success that people have with "active noise cancelling" units. It occurred to me that one should be able to achieve the same kinds of results using the second RX and separate antenna in the K3 - with the addition of control over the phase (delay) of the arriving signal. On its face, it would seem that one could achieve destructive interference between "the noise only" coming from a "sense" antenna and "the noise + signal" coming from a better receive antenna. Thoughts? -- 73 -- Brian -- K1LI __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] keeping it ridiculous
On Nov 9, 2009, at 9:01 PM, Don Wilhelm wrote: > If the K3 is to be perfect, it should keep itself perfectly clean too. Hey, I'll take it to the ridiculous limit of this line of humor: shouldn't the chassis have an ever-so-slight positive charge to actively repel dust? Ala the "sensor cleaners" in high end SLRS? By the time I've built my way through the K1 and K2, I will expect such perfection! Heh. 73, Byron KI6NUL __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] Elecraft k3 Macros
(Snip) Ha, ha, ha!! Well put Gary. Sometimes when scanning these messages I check to see if I didn't accidentally subscribe to a computer user forum. Ron AC7AC (End Snip) Gee Ron, that's been my problem all along then...here I was thinking (h that never happened before) that I was reading a Radio Related Sitebugger! Thanks for putting me on the right path to Nirvana...now where did I put that send key?...H..senior moments have struck me again, I'm gonna kill Murphy when I find him...(:-)) Gary Sent via BlackBerry® from Telstra __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] 6 meters
And why has Elecraft failed to open the band? __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] SWR
Duncan, AND, *my* K3 gets dust on the plastic covering the LCD display. I really don't know why this has not been corrected by adding a sprayer and wipers to keep it clean. After all, every auto in the US has such a device, it should not be difficult to add on the K3 as well to assure a clean display. If the K3 is to be perfect, it should keep itself perfectly clean too. 73, Don W3FPR Duncan Carter wrote: > Al, > Here's another complaint. It seems the Elecraft refelector is stripping > the . tag from your post just like > it did the same to my last post. On the other hand, my audio spectrum > analyzer reports the cw pitch as 600 Hz; I use it routinely because I > like it better than Elecraft's CWT. > > I do still have my FT-101E in reserve if the K3 faults become too much > to tolerate. > > 73, Dunc, W5DC > > Al Lorona wrote: > >> >> ...Does part of the K3 spec mention that it's supposed to be a precision >> swr indicator?... >> >> 73, Dunc, W5DC >> >> >> I am shocked and dismayed that the SWR indicator in the K3 does not, after >> all, rival an external, laboratory-grade instrument. This is a tremendously >> disturbing disappointment for me. >> >> > __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] Macro to Disable Key out
Gee, what happened to a radio, feedline, antenna, key and mic? Glad I don't have a PC thingy, interface for this and that, amplifier to fry everything (might warm my dinner up though) and a bunch of "other" stuff that is simply NOT needed if all you want to do is have a QSO with another station. KISS works for me, the only time I have "Operator Finger" is when I try to do "the clever stuff" and to prevent this I look at the radio and check before action is taken. Oh well, it works for me and I hope everyone else gets to that point soon. 73's I have to go SPEAK on my K3 as someone just called...it works Gary Sent via BlackBerry® from Telstra __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] SWR
Al, Here's another complaint. It seems the Elecraft refelector is stripping the . tag from your post just like it did the same to my last post. On the other hand, my audio spectrum analyzer reports the cw pitch as 600 Hz; I use it routinely because I like it better than Elecraft's CWT. I do still have my FT-101E in reserve if the K3 faults become too much to tolerate. 73, Dunc, W5DC Al Lorona wrote: > > ...Does part of the K3 spec mention that it's supposed to be a precision > swr indicator?... > > 73, Dunc, W5DC > > > I am shocked and dismayed that the SWR indicator in the K3 does not, after > all, rival an external, laboratory-grade instrument. This is a tremendously > disturbing disappointment for me. > > In this state of dejection and disillusionment, and hoping to assuage my > sorrow, I set out to verify some of the other controls on the K3 that I had > assumed would be absolutely accurate. > > To my horror, I must now report -- with extreme reluctance-- that the CW > speed control under-reports the CW speed by 2 WPM! How can this be? Wayne, I > demand an immediate explanation. > > That was bad enough, but that's not all. To add seeming insult to injury, I > have now found that when my CW pitch is set to 600 Hz the actual measured > pitch is closer to 608 Hz. Instead of a D, it's more like an E-flat. > Certainly, none of us is going to stand for that. > > If these two conditions are not corrected in the next release I'm going back > to my Kensucom MarkTwoDoublePlusGee. > > I really thought that the K3 was a perfect rig in a perfect world, but I am > utterly crushed to find that it is a merely great one in an imperfect world. > Darn. > > W6LX said that. > __ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto: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] Macro to Disable Key out
Jim Miller KG0KP wrote: > Is the amp a solid state amp? My ALS500 has an on/off and that is it but > WHY would anyone need or want a standby switch on a solid state amp? It is > "off" and draws "no" current (probably a few mils) when RF is not present at > the input. I never turn mine off even when I turn off everything else. This has gone far from the original question! I am not sure exactly what John wanted, but what I want to do is make a macro that will a) Reduce power to about 65 watts b) Enable my external (tube) amplifier And I want another macro to do the reverse. Why bother? Yes, as one poster commented, my amplifier has a standby switch. But if I only have to press one button on the K3 to reduce power and enable the amplifier, I will not be likely to accidentally enable it when the K3 is set for 110 watts. I have done this more than once. Did you know that you can get about 1100 watts from a single 3-500Z if you drive it with 110 watts? Yes, you can... but for how long? -- 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
[Elecraft] [K3] SWR
...Does part of the K3 spec mention that it's supposed to be a precision swr indicator?... 73, Dunc, W5DC I am shocked and dismayed that the SWR indicator in the K3 does not, after all, rival an external, laboratory-grade instrument. This is a tremendously disturbing disappointment for me. In this state of dejection and disillusionment, and hoping to assuage my sorrow, I set out to verify some of the other controls on the K3 that I had assumed would be absolutely accurate. To my horror, I must now report -- with extreme reluctance-- that the CW speed control under-reports the CW speed by 2 WPM! How can this be? Wayne, I demand an immediate explanation. That was bad enough, but that's not all. To add seeming insult to injury, I have now found that when my CW pitch is set to 600 Hz the actual measured pitch is closer to 608 Hz. Instead of a D, it's more like an E-flat. Certainly, none of us is going to stand for that. If these two conditions are not corrected in the next release I'm going back to my Kensucom MarkTwoDoublePlusGee. I really thought that the K3 was a perfect rig in a perfect world, but I am utterly crushed to find that it is a merely great one in an imperfect world. Darn. W6LX said that. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] Macro to Disable Key out
Is the amp a solid state amp? My ALS500 has an on/off and that is it but WHY would anyone need or want a standby switch on a solid state amp? It is "off" and draws "no" current (probably a few mils) when RF is not present at the input. I never turn mine off even when I turn off everything else. 73, de Jim KG0KP - Original Message - From: "Radio Amateur N5GE" To: "Elecraft List" Sent: Monday, November 09, 2009 4:28 PM Subject: Re: [Elecraft] Macro to Disable Key out > On Mon, 09 Nov 2009 08:47:45 -0800, Vic K2VCO wrote: > >>John Huffman wrote: >> >>> I would like to add a command to the macro for the antenna using the >>> internal tuner. I would like to disable the "key out" amp relay. Don't >>> want the K3 keying the amp if it is not the antenna getting power. >>> >>> Since my amp doesn't have a standby position (Ten Tec Hercules II), I >>> would also like to bypass the amp relay when tuning the manual tuner. >>> But, I can't find a command in the Programmer's Reference to disable Key >>> Out. >>> >>> Is there an undocumented command to disable Key Out? >> >>I also wanted to do this, but apparently it's not possible. Another way to >>do it would be >>a command to activate the DIGOUT1 line on the ACC connector, which could >>operate an >>external relay. Or change the state of the KRC2 ACC output (if you have a >>KRC2, as I do) >>by activating the KRC2 menu item. >> >>Unfortunately, either of these would be 'sticky' -- once activated it >>would stay activated >>until another command turns it off. I want something which will default to >>'amp off' when >>powering up the K3. > > It amazes me that an amateur radio amplifier manufacturer would offer > an amplifier that had no standby switch or setting. I wonder if that > amplifier that you mentioned bypasses when the power to the amp is > off? Does it use RF sensing to switch the relay(s) or does it use a > control line from the rig? > > Unbelievable! > > Tom, N5GE > > n...@n5ge.com > K3 #806, K3 #1055, PR6, > XV144, XV432, KRC2, > W1 and other small kits. > > 2 W2's on order > 1 K144XV on order > > http://www.n5ge.com > http://www.swotrc.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 mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] Macro to Disable Key out
I forgot to say yes it is bypassed when off. Also I believe if you are using the "vox relay" input to key the amp, switching the front panel switch from to QSK keying instead of RELAY keying will also disable the amp keying. Chuck, KE9UW Original message >Date: Mon, 09 Nov 2009 16:28:49 -0600 >From: Radio Amateur N5GE >Subject: Re: [Elecraft] Macro to Disable Key out >To: Elecraft List > >On Mon, 09 Nov 2009 08:47:45 -0800, Vic K2VCO wrote: > >>John Huffman wrote: >> >>> I would like to add a command to the macro for the antenna using the >>> internal tuner. I would like to disable the "key out" amp relay. Don't >>> want the K3 keying the amp if it is not the antenna getting power. >>> >>> Since my amp doesn't have a standby position (Ten Tec Hercules II), I >>> would also like to bypass the amp relay when tuning the manual tuner. >>> But, I can't find a command in the Programmer's Reference to disable Key >>> Out. >>> >>> Is there an undocumented command to disable Key Out? >> >>I also wanted to do this, but apparently it's not possible. Another way to do >>it would be >>a command to activate the DIGOUT1 line on the ACC connector, which could >>operate an >>external relay. Or change the state of the KRC2 ACC output (if you have a >>KRC2, as I do) >>by activating the KRC2 menu item. >> >>Unfortunately, either of these would be 'sticky' -- once activated it would >>stay activated >>until another command turns it off. I want something which will default to >>'amp off' when >>powering up the K3. > >It amazes me that an amateur radio amplifier manufacturer would offer >an amplifier that had no standby switch or setting. I wonder if that >amplifier that you mentioned bypasses when the power to the amp is >off? Does it use RF sensing to switch the relay(s) or does it use a >control line from the rig? > >Unbelievable! > >Tom, N5GE > >n...@n5ge.com >K3 #806, K3 #1055, PR6, >XV144, XV432, KRC2, >W1 and other small kits. > >2 W2's on order >1 K144XV on order > >http://www.n5ge.com >http://www.swotrc.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
Re: [Elecraft] Macro to Disable Key out
It's a solid state amp...you just turn it off. Why have two off switches? Original message >Date: Mon, 09 Nov 2009 16:28:49 -0600 >From: Radio Amateur N5GE >Subject: Re: [Elecraft] Macro to Disable Key out >To: Elecraft List > >On Mon, 09 Nov 2009 08:47:45 -0800, Vic K2VCO wrote: > >>John Huffman wrote: >> >>> I would like to add a command to the macro for the antenna using the >>> internal tuner. I would like to disable the "key out" amp relay. Don't >>> want the K3 keying the amp if it is not the antenna getting power. >>> >>> Since my amp doesn't have a standby position (Ten Tec Hercules II), I >>> would also like to bypass the amp relay when tuning the manual tuner. >>> But, I can't find a command in the Programmer's Reference to disable Key >>> Out. >>> >>> Is there an undocumented command to disable Key Out? >> >>I also wanted to do this, but apparently it's not possible. Another way to do >>it would be >>a command to activate the DIGOUT1 line on the ACC connector, which could >>operate an >>external relay. Or change the state of the KRC2 ACC output (if you have a >>KRC2, as I do) >>by activating the KRC2 menu item. >> >>Unfortunately, either of these would be 'sticky' -- once activated it would >>stay activated >>until another command turns it off. I want something which will default to >>'amp off' when >>powering up the K3. > >It amazes me that an amateur radio amplifier manufacturer would offer >an amplifier that had no standby switch or setting. I wonder if that >amplifier that you mentioned bypasses when the power to the amp is >off? Does it use RF sensing to switch the relay(s) or does it use a >control line from the rig? > >Unbelievable! > >Tom, N5GE > >n...@n5ge.com >K3 #806, K3 #1055, PR6, >XV144, XV432, KRC2, >W1 and other small kits. > >2 W2's on order >1 K144XV on order > __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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： OT- frequencies used by ERU of I FRC
Hello Group, It is a bit OT. Does anybody know the frequencies (both HF and VHF) used by the Emergency Response Unit of Internation Federation of Red Cross? To reduce the bandwidth in this mail reflector, could you please reply off - the - list? 73 Johnny Siu VR2XMC Yahoo!香港提供網上安全攻略，教你如何防範黑客!了解更多 Yahoo!香港提供網上安全攻略，教你如何防範黑客! 請前往 http://hk.promo.yahoo.com/security/ 了解更多! __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] Macro to Disable Key out
On Mon, 09 Nov 2009 08:47:45 -0800, Vic K2VCO wrote: >John Huffman wrote: > >> I would like to add a command to the macro for the antenna using the >> internal tuner. I would like to disable the "key out" amp relay. Don't >> want the K3 keying the amp if it is not the antenna getting power. >> >> Since my amp doesn't have a standby position (Ten Tec Hercules II), I >> would also like to bypass the amp relay when tuning the manual tuner. >> But, I can't find a command in the Programmer's Reference to disable Key >> Out. >> >> Is there an undocumented command to disable Key Out? > >I also wanted to do this, but apparently it's not possible. Another way to do >it would be >a command to activate the DIGOUT1 line on the ACC connector, which could >operate an >external relay. Or change the state of the KRC2 ACC output (if you have a >KRC2, as I do) >by activating the KRC2 menu item. > >Unfortunately, either of these would be 'sticky' -- once activated it would >stay activated >until another command turns it off. I want something which will default to >'amp off' when >powering up the K3. It amazes me that an amateur radio amplifier manufacturer would offer an amplifier that had no standby switch or setting. I wonder if that amplifier that you mentioned bypasses when the power to the amp is off? Does it use RF sensing to switch the relay(s) or does it use a control line from the rig? Unbelievable! Tom, N5GE n...@n5ge.com K3 #806, K3 #1055, PR6, XV144, XV432, KRC2, W1 and other small kits. 2 W2's on order 1 K144XV on order http://www.n5ge.com http://www.swotrc.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
Re: [Elecraft] K3 CW Contest Settings
For 160/80/40, I have the ATT on, unless using a Rx antenna. Assuming you have that capability, then settings would depend on the antenna. I do vary my BW depending on whether I'm running or not. If running and the band gets crowded, I crank down my BW. I do use RIT/XIT, particularly in DX contests. I did need RIT a couple times when folks called way off freq to make the exchange go smoother. I'm loaded for bear on CW and RTTY with a wide range of roofing filters. May be overkill, would like to see a 700 or 750 Hz filter in the line up. Op preference ;o) Ride the AF or RF gain and spin the VFO and away we go. 73, Julius n2wn Al Lorona wrote: > > Hi, Rich, I will risk cluttering the reflector with a response. > > A good contest rig becomes totally transparent during the contest. The Ten > Tec Omni VI was such a rig. I think that the K3 will become like that once > I get more familiar with it. I am a less-than-two-month owner and like > you, the CW SS was my first contest with the K3. > > By "transparent" I mean, can one operate the entire contest using only the > VFO knob? It is possible and when it happens you know you are > concentrating on the contest rather than wasting brain power on the rig. > > There were glimpses of transparency, though. Before the contest I got > fancy and had set up N1MM to be able to switch between 1500 and 400 Hz > bandwidths but after a few minutes I just left it at 400 and never touched > it again. Similarly, this morning I had occasion to turn on NR, then > forgot that it was on and it stayed on for the remainder of the contest. > That's a rig that wants to become invisible. The same thing happened to me > two years ago with a K2 on the 160m contest. There's a trend developing > here. :^) > > I need to become second nature with the IF shift; I should have used it > more but am so used to traditional IF shift that I'm still not comfortable > with it. It doesn't shrink the bandwidth like IF Shifts on older rigs, and > I need more time to assimilate that. I think I will set up two macros in > time for the Phone SS that will 1/ shift down and shrink bandwidth, or 2/ > shift up and shrink, like I have on my K2. > > I never used much of anything else. Never used RIT, NB, WIDTH, MON, RF > GAIN, SUB, or my macros. I did use SPLIT once when VO1MP was listening up > 1, the first time in 30 years of Sweepstakeses. > > The K3 is the easiest rig I've ever had to set up for remote operation. I > use N1MM. The CW keying was flawless and everything else worked pretty > well. Maybe I just got lucky setting everything up? > > Sorry for the long answer, Rich. To make a long answer longer, here are my > "Toyota Corolla" settings on 20m: no ATT or PRE, BW=400, QSK on, NR 5-3, > RF GAIN full on, SPOT=550 Hz, and RATE=10 Hz. Everything else was off. > > > > > > - Original Message > From: K3RWN > To: Elecraft@mailman.qth.net > Sent: Sun, November 8, 2009 7:53:27 PM > Subject: [Elecraft] K3 CW Contest Settings > > As a new K3 owner I would be interested in the settings folks use for CW > contesting. > __ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft@mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > > - Julius Fazekas N2WN Tennessee Contest Group http://www.k4ro.net/tcg/index.html Tennessee QSO Party http://www.tnqp.org/ Elecraft K2/100 #4455 Elecraft K3/100 #366 Elecraft K3#1875 -- View this message in context: http://n2.nabble.com/K3-CW-Contest-Settings-tp3971105p3976106.html Sent from the Elecraft mailing list archive at Nabble.com. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] ***K3 Spurious Problem Alert***
This problem was reported about TRANSMITTED spurs, not spurs heard in K3 receiver. 73, Guy. 2009/11/9 Björn Mohr > On 2 nov 2009, at 12.02, Bill W4ZV wrote: > > > Two Topband buddies have now reported a bad spur with relatively new > > K3s > > (April or May 2009) at only 20 dB down about 16 kHz from the > > fundamental. > > I found it useful to fiddle with the routing of the coax cables from > the synthesizer modules to minimize the level of spurs. It won't > completely remove them, but at least it improved the situation. I have > an early K3 in the serial # 200 range and many spurs where introduced > when the sub RX was installed. > > I know I have at least one spur on topband that I have "masked" using > the signal remove function. As I am travelling I cannot check the > frequency of it right now. > > 73 de Björn, > SM0MDG > SE0X > > > __ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto: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] My mic!
telegrapher wrote: > > Well i suppose i might just as well weigh in on this as well since it > seems to be the "thing to do"! > > When i got my K3 (#763) this summer it came with a Kenwood 600 ohm > Dynamic handheld. Must have come from something that uses the UP-Down > buttons but anyway, no one has told me my audio sounded bad so i guess it > sounds good. What more could i ask.. BC quality? NOT! > > Larry > W0OGH > I just went ahead and included an Elecraft mic with my K3 order. I took it apart and put it in a T-17-B housing for that "vintage" look. Sounds great too. 73 4Z5TO -- View this message in context: http://n2.nabble.com/My-mic-tp3954865p3975819.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 Spurious Problem Alert***
On 2 nov 2009, at 12.02, Bill W4ZV wrote: > Two Topband buddies have now reported a bad spur with relatively new > K3s > (April or May 2009) at only 20 dB down about 16 kHz from the > fundamental. I found it useful to fiddle with the routing of the coax cables from the synthesizer modules to minimize the level of spurs. It won't completely remove them, but at least it improved the situation. I have an early K3 in the serial # 200 range and many spurs where introduced when the sub RX was installed. I know I have at least one spur on topband that I have "masked" using the signal remove function. As I am travelling I cannot check the frequency of it right now. 73 de Björn, SM0MDG SE0X __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] Alternate sources of product feedback?
Hi all, When we're searching for ways to improve our products, we start by carefully going over the postings on our own reflector. We also "mine" the product reviews and forum postings at www.eham.net (for example, HF transceivers are listed at www.eham.net/reviews/products/14) . This gives us feedback on competing products as well. But we'd like to find additional information sources that we may be missing. If you have a different product review or forum site that you depend on for such information, please let me know (n6kr at elecraft dot com). Thanks, Wayne N6KR __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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 Keyboard to save space
I use a small Cherry keyboard originally for a server picked up on Ebay. These have a trackball integrated so you don't need a mouse flying around the operating position and are meant to be in a pull out drawer in the rack so are compact. Vy 73, Bob DJ0MBC/WU5T __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] CW Risetime Mod
G'day, Cold with occasional snow, so what to do? Install a rather overdue CW Keying Rise Time mod. Decided to install the SMD cap, getting good at this. All went well, all buttoned up. Test radio, not so good, no output on CW. A flash of memory of a posting of a month or so ago, check the value of the SMD cap 103, damn, it should be 104. Install the leaded cap (104), test the radio, all OK. Beware if you have an early uninstalled mod kit from Elecraft. Regards, Mike VP8NO __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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 SWR Accuracy: Final explanation
Does part of the K3 spec mention that it's supposed to be a precision swr indicator? If so, I missed that. I thought that I was merely getting an outstanding transceiver, especially for cw, at a relatively low cost. This year, I became active on ham radio after a multi-decade hiatus. Before I left, the normal assumption about swr meters with diodes was that they had reduced accuracy at low power levels because of diode non-linearities. Has this changed while I was away? 73, Dunc, W5DC Wayne Burdick wrote: > There's no way to avoid some increase in SWR reading error at low > power, since the bridge transformers have a low coupling ratio to > avoid heating at full power. We're already using very low-drop diodes > and pre-biasing them. > > That said, I am going to look at a correction based on power level if > possible. > > tnx > Wayne > N6KR > > On Nov 9, 2009, at 9:06 AM, Jack Smith wrote: > > >> Wayne: >> >> There's also an SWR versus output power issue, or is that part of >> the first correction factor? The SWR error increases significantly >> at lower power. I have not had a chance to plot the data because it >> was not part of the original question, but there is a clear power >> related error seen in the raw data, which I assume is tied to the >> detector diode linearity at low voltages. >> >> Jack K8ZOA >> >> >> Wayne Burdick wrote: >> >>> There are two sources of the reported SWR inaccuracies: >>> >>> - An SWR calculation scalar that I'll be adjusting in firmware; >>> this is what's causing a 2:1 SWR to read closer to 1.8:1 on some >>> K3s. >>> >>> - The KAT3 itself, and to a much lesser degree, the KANT3, which >>> is present if the ATU is not installed. Both modules have inherent >>> stray reactance, part of which is due to the 8.2 MHz first-IF >>> trap. These strays slightly alter the impedance seen by the K3's >>> SWR bridge. >>> >>> Even when the scalar correction is applied, there will still be a >>> small frequency-dependent variation in SWR reading between the >>> K3's bridge and an external instrument. This has no impact on K3 >>> operation. >>> >>> 73, >>> Wayne >>> N6KR >>> >>> >>> __ >>> Elecraft mailing list >>> Home: http://mailman.qth.net/mailman/listinfo/elecraft >>> Help: http://mailman.qth.net/mmfaq.htm >>> Post: mailto: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 SWR Accuracy: Final explanation
There's no way to avoid some increase in SWR reading error at low power, since the bridge transformers have a low coupling ratio to avoid heating at full power. We're already using very low-drop diodes and pre-biasing them. That said, I am going to look at a correction based on power level if possible. tnx Wayne N6KR On Nov 9, 2009, at 9:06 AM, Jack Smith wrote: > Wayne: > > There's also an SWR versus output power issue, or is that part of > the first correction factor? The SWR error increases significantly > at lower power. I have not had a chance to plot the data because it > was not part of the original question, but there is a clear power > related error seen in the raw data, which I assume is tied to the > detector diode linearity at low voltages. > > Jack K8ZOA > > > Wayne Burdick wrote: >> There are two sources of the reported SWR inaccuracies: >> >> - An SWR calculation scalar that I'll be adjusting in firmware; >> this is what's causing a 2:1 SWR to read closer to 1.8:1 on some >> K3s. >> >> - The KAT3 itself, and to a much lesser degree, the KANT3, which >> is present if the ATU is not installed. Both modules have inherent >> stray reactance, part of which is due to the 8.2 MHz first-IF >> trap. These strays slightly alter the impedance seen by the K3's >> SWR bridge. >> >> Even when the scalar correction is applied, there will still be a >> small frequency-dependent variation in SWR reading between the >> K3's bridge and an external instrument. This has no impact on K3 >> operation. >> >> 73, >> Wayne >> N6KR >> >> >> __ >> Elecraft mailing list >> Home: http://mailman.qth.net/mailman/listinfo/elecraft >> Help: http://mailman.qth.net/mmfaq.htm >> Post: mailto: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 SWR Accuracy - reprise
I'm running tests today with the 25 ohm load connected to the K3/LP-100 with varying lengths of RG-142B/U coaxial cable, in 24 inch increments out to 120 or 144 inches. The result should be a constant SWR, neglecting the padding effect of coaxial cable loss, but with the impedance varying along the constant SWR circle if we think in Smith chart terms. I will also measure the R+jX of the load under the same conditions, with both the LP-100 and a VNA. I may have the data analyzed this evening, but more likely tomorrow. Also added a note confirming that my K3 has the KAT3 tuner, set to BYPASS for the tests. Jack N8LP wrote: > That's a good question, Paul. I have a medium power, 150 ohm load laying > around that I made up a couple years ago for testing purposes. I just > checked it with my VNA and it has an SWR of 2.92, pure resistive. I did a > quick test with the K3 at 25W, and it measured between 2.4 and 2.7 depending > on band. That's about the same percentage error as the 25 ohm load, but it's > impossible to know if the error is in the same direction. I would think that > you could calculate the direction using the "tuned" L-network values of a > KAT3, but I don't have one installed. > > Larry N8LP > > > > P.B. Christensen wrote: > >>> consistently lower than Jack's, ie. 1.6 on most bands with a 2.0 load. >>> Not >>> a >>> big deal, but as long as you're in there tweaking the code, can you >>> verify >>> that it works with non-KAT3 radios as well? >>> >> I'm curious -- are those who see a smaller indicated VSWR reading on the >> K3 >> meter with a 25-ohm load seeing the same discrepancy with a 100-ohm load? >> This may partially explain why some owners are seeing varying results >> under >> a 2:1 VSWR since that ratio can be comprised of those two resistance loads >> or an infinite set of resistive + reactive conditions -- any of which can >> form a load impedance of 25 or 100 ohms. >> >> Paul, W9AC >> >> __ >> Elecraft mailing list >> Home: http://mailman.qth.net/mailman/listinfo/elecraft >> Help: http://mailman.qth.net/mmfaq.htm >> Post: mailto:Elecraft@mailman.qth.net >> >> This list hosted by: http://www.qsl.net >> Please help support this email list: http://www.qsl.net/donate.html >> >> >> > > __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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 SWR Accuracy: Final explanation
Wayne: There's also an SWR versus output power issue, or is that part of the first correction factor? The SWR error increases significantly at lower power. I have not had a chance to plot the data because it was not part of the original question, but there is a clear power related error seen in the raw data, which I assume is tied to the detector diode linearity at low voltages. Jack K8ZOA Wayne Burdick wrote: > There are two sources of the reported SWR inaccuracies: > > - An SWR calculation scalar that I'll be adjusting in firmware; this > is what's causing a 2:1 SWR to read closer to 1.8:1 on some K3s. > > - The KAT3 itself, and to a much lesser degree, the KANT3, which is > present if the ATU is not installed. Both modules have inherent stray > reactance, part of which is due to the 8.2 MHz first-IF trap. These > strays slightly alter the impedance seen by the K3's SWR bridge. > > Even when the scalar correction is applied, there will still be a > small frequency-dependent variation in SWR reading between the K3's > bridge and an external instrument. This has no impact on K3 operation. > > 73, > Wayne > N6KR > > > __ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto: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 SWR Accuracy - reprise
__ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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 SWR Accuracy: Final explanation
There are two sources of the reported SWR inaccuracies: - An SWR calculation scalar that I'll be adjusting in firmware; this is what's causing a 2:1 SWR to read closer to 1.8:1 on some K3s. - The KAT3 itself, and to a much lesser degree, the KANT3, which is present if the ATU is not installed. Both modules have inherent stray reactance, part of which is due to the 8.2 MHz first-IF trap. These strays slightly alter the impedance seen by the K3's SWR bridge. Even when the scalar correction is applied, there will still be a small frequency-dependent variation in SWR reading between the K3's bridge and an external instrument. This has no impact on K3 operation. 73, Wayne N6KR __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] Macro to Disable Key out
John Huffman wrote: > I would like to add a command to the macro for the antenna using the > internal tuner. I would like to disable the "key out" amp relay. Don't > want the K3 keying the amp if it is not the antenna getting power. > > Since my amp doesn't have a standby position (Ten Tec Hercules II), I > would also like to bypass the amp relay when tuning the manual tuner. > But, I can't find a command in the Programmer's Reference to disable Key > Out. > > Is there an undocumented command to disable Key Out? I also wanted to do this, but apparently it's not possible. Another way to do it would be a command to activate the DIGOUT1 line on the ACC connector, which could operate an external relay. Or change the state of the KRC2 ACC output (if you have a KRC2, as I do) by activating the KRC2 menu item. Unfortunately, either of these would be 'sticky' -- once activated it would stay activated until another command turns it off. I want something which will default to 'amp off' when powering up the K3. -- 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 SWR Accuracy - reprise
That's a good question, Paul. I have a medium power, 150 ohm load laying around that I made up a couple years ago for testing purposes. I just checked it with my VNA and it has an SWR of 2.92, pure resistive. I did a quick test with the K3 at 25W, and it measured between 2.4 and 2.7 depending on band. That's about the same percentage error as the 25 ohm load, but it's impossible to know if the error is in the same direction. I would think that you could calculate the direction using the "tuned" L-network values of a KAT3, but I don't have one installed. Larry N8LP P.B. Christensen wrote: > >> consistently lower than Jack's, ie. 1.6 on most bands with a 2.0 load. >> Not >> a >> big deal, but as long as you're in there tweaking the code, can you >> verify >> that it works with non-KAT3 radios as well? > > I'm curious -- are those who see a smaller indicated VSWR reading on the > K3 > meter with a 25-ohm load seeing the same discrepancy with a 100-ohm load? > This may partially explain why some owners are seeing varying results > under > a 2:1 VSWR since that ratio can be comprised of those two resistance loads > or an infinite set of resistive + reactive conditions -- any of which can > form a load impedance of 25 or 100 ohms. > > Paul, W9AC > > __ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft@mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > > -- View this message in context: http://n2.nabble.com/FW-K3-SWR-Accuracy-reprise-tp3970987p3973977.html Sent from the Elecraft mailing list archive at Nabble.com. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] K3 SWR Accuracy - reprise
He does have the KAT3, and it was in bypass for the tests. Larry N8LP Bob Cunnings wrote: > > Speaking of the KAT3, Jack's report doesn't state whether or not his > K3 contains the KAT3 module or not, and what state it's in. > > Bob NW8L > > On Sun, Nov 8, 2009 at 9:07 PM, Wayne Burdick wrote: >> Great data, Jack. We've been testing this, too, and we know why the >> K3's readings differ. >> >> A firmware change will be made to improve the accuracy in general. But >> part of the difference on the higher bands is due to strays in the >> KAT3 module. These strays can be tuned out by the KAT3 itself, thus >> presenting the correct load to the K3 internally. But an external >> instrument is on the other side of the KAT3 and thus sees a slightly >> different match. >> >> We'll post additional details soon. Meanwhile, no one need worry about >> this apparent discrepancy. The ATU is cancelling its own strays, and >> the SWR bridge is correctly reporting the load presented to the >> transceiver internally, which is the important thing when matching the >> rig to its load. >> >> 73, >> Wayne >> N6KR >> >> >> >> http://www.elecraft.com >> >> On Nov 8, 2009, at 7:18 PM, "Edward Dickinson, III" >> > > wrote: >> >>> _ >>> >>> From: Jack Smith [mailto:jack.sm...@cliftonlaboratories.com] >>> Sent: Sunday, November 08, 2009 10:00 PM >>> To: Edward Dickinson, III >>> Subject: Re: [Elecraft] K3 SWR Accuracy - reprise >>> >>> Dick: >>> >>> http://www.cliftonlaboratories.com/swr_accuracy.htm >>> >>> I posted a message to the Elecraft reflector about the page being >>> available >>> but it has not shown up after an hour and a half. >>> >>> Jack K8ZOA >>> >>> >>> Edward Dickinson, III wrote: >>> >>> Hi Jack. >>> >>> >>> >>> I extend invitation to apply your expertise regarding the matter being >>> >>> addressed in above referenced discussion. >>> >>> >>> >>> >>> >>> Best regards, >>> >>> >>> >>> 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 >> __ >> Elecraft mailing list >> Home: http://mailman.qth.net/mailman/listinfo/elecraft >> Help: http://mailman.qth.net/mmfaq.htm >> Post: mailto: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 > > -- View this message in context: http://n2.nabble.com/FW-K3-SWR-Accuracy-reprise-tp3970987p3973584.html Sent from the Elecraft mailing list archive at Nabble.com. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] K3 SWR Accuracy - reprise
> consistently lower than Jack's, ie. 1.6 on most bands with a 2.0 load. Not > a > big deal, but as long as you're in there tweaking the code, can you verify > that it works with non-KAT3 radios as well? I'm curious -- are those who see a smaller indicated VSWR reading on the K3 meter with a 25-ohm load seeing the same discrepancy with a 100-ohm load? This may partially explain why some owners are seeing varying results under a 2:1 VSWR since that ratio can be comprised of those two resistance loads or an infinite set of resistive + reactive conditions -- any of which can form a load impedance of 25 or 100 ohms. Paul, W9AC __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] K3 SWR Accuracy - reprise
Speaking of the KAT3, Jack's report doesn't state whether or not his K3 contains the KAT3 module or not, and what state it's in. Bob NW8L On Sun, Nov 8, 2009 at 9:07 PM, Wayne Burdick wrote: > Great data, Jack. We've been testing this, too, and we know why the > K3's readings differ. > > A firmware change will be made to improve the accuracy in general. But > part of the difference on the higher bands is due to strays in the > KAT3 module. These strays can be tuned out by the KAT3 itself, thus > presenting the correct load to the K3 internally. But an external > instrument is on the other side of the KAT3 and thus sees a slightly > different match. > > We'll post additional details soon. Meanwhile, no one need worry about > this apparent discrepancy. The ATU is cancelling its own strays, and > the SWR bridge is correctly reporting the load presented to the > transceiver internally, which is the important thing when matching the > rig to its load. > > 73, > Wayne > N6KR > > > > http://www.elecraft.com > > On Nov 8, 2009, at 7:18 PM, "Edward Dickinson, III" > wrote: > >> _ >> >> From: Jack Smith [mailto:jack.sm...@cliftonlaboratories.com] >> Sent: Sunday, November 08, 2009 10:00 PM >> To: Edward Dickinson, III >> Subject: Re: [Elecraft] K3 SWR Accuracy - reprise >> >> Dick: >> >> http://www.cliftonlaboratories.com/swr_accuracy.htm >> >> I posted a message to the Elecraft reflector about the page being >> available >> but it has not shown up after an hour and a half. >> >> Jack K8ZOA >> >> >> Edward Dickinson, III wrote: >> >> Hi Jack. >> >> >> >> I extend invitation to apply your expertise regarding the matter being >> >> addressed in above referenced discussion. >> >> >> >> >> >> Best regards, >> >> >> >> 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 > __ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto: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 SWR Accuracy - reprise
Will the revision be generic to the extent that it will also improve the readings for radios without the KAT3? My variations are not as great as Jack's, I suspect due to not having the KAT3, but my readings are consistently lower than Jack's, ie. 1.6 on most bands with a 2.0 load. Not a big deal, but as long as you're in there tweaking the code, can you verify that it works with non-KAT3 radios as well? 73, Larry N8LP wayne burdick wrote: > > Great data, Jack. We've been testing this, too, and we know why the > K3's readings differ. > > A firmware change will be made to improve the accuracy in general. But > part of the difference on the higher bands is due to strays in the > KAT3 module. These strays can be tuned out by the KAT3 itself, thus > presenting the correct load to the K3 internally. But an external > instrument is on the other side of the KAT3 and thus sees a slightly > different match. > > We'll post additional details soon. Meanwhile, no one need worry about > this apparent discrepancy. The ATU is cancelling its own strays, and > the SWR bridge is correctly reporting the load presented to the > transceiver internally, which is the important thing when matching the > rig to its load. > > 73, > Wayne > N6KR > > > > http://www.elecraft.com > > On Nov 8, 2009, at 7:18 PM, "Edward Dickinson, III" > > wrote: > >> _ >> >> From: Jack Smith [mailto:jack.sm...@cliftonlaboratories.com] >> Sent: Sunday, November 08, 2009 10:00 PM >> To: Edward Dickinson, III >> Subject: Re: [Elecraft] K3 SWR Accuracy - reprise >> >> Dick: >> >> http://www.cliftonlaboratories.com/swr_accuracy.htm >> >> I posted a message to the Elecraft reflector about the page being >> available >> but it has not shown up after an hour and a half. >> >> Jack K8ZOA >> >> >> Edward Dickinson, III wrote: >> >> Hi Jack. >> >> >> >> I extend invitation to apply your expertise regarding the matter being >> >> addressed in above referenced discussion. >> >> >> >> >> >> Best regards, >> >> >> >> 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 > __ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft@mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > > -- View this message in context: http://n2.nabble.com/FW-K3-SWR-Accuracy-reprise-tp3970987p3973505.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] I screwed up.
Paul, Sorry for your predicament! See "Parameter Initialization" on page 61 of the K3 manual, it explains the reset procedure in detail. Too much to repeat here. 73, Don W3FPR PAUL VANOVEREN wrote: > Playing around with my K3 serial # 756 and the setting for N1MM and > changed the DTR-RTS, or PTT settings and now the radio is in transmit always > on the 60 meter band and when I push the MENU, COFIG button, the firmware > version comes up, but if I rotate the B VFO to try and get to some other > menu item, it locks up, turning to the right bet to FL1 and locks and turing > to the right byp kat3 and locks up. Is there some way to do a soft or > hard reset and bring everything back to the default settings ??? Can't find > it in the owners manual...sorry.. > > Paul NF8J... > __ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto: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: 9.0.698 / Virus Database: 270.14.56/2491 - Release Date: 11/09/09 > 02:39:00 > > __ 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] Macro to Disable Key out
John, I believe KEYOUT ( and KEYOUT-LP) are direct hardware functions and are not under software control. You will have to add a switch in series with the keyout line to keep from keying the amp if there is no standby available on the amp itself. 73, Don W3FPR John Huffman wrote: > I have two antennas. One uses the K3 internal tuner and one goes > through an amplifier and a manual tuner. > > I have a macro set to select each antenna and set the power level -- > 100w for the antenna using the internal tuner and 45w to the antenna > running the amp. > > I would like to add a command to the macro for the antenna using the > internal tuner. I would like to disable the "key out" amp relay. Don't > want the K3 keying the amp if it is not the antenna getting power. > > Since my amp doesn't have a standby position (Ten Tec Hercules II), I > would also like to bypass the amp relay when tuning the manual tuner. > But, I can't find a command in the Programmer's Reference to disable Key > Out. > > Is there an undocumented command to disable Key Out? > > 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] I screwed up.
Playing around with my K3 serial # 756 and the setting for N1MM and changed the DTR-RTS, or PTT settings and now the radio is in transmit always on the 60 meter band and when I push the MENU, COFIG button, the firmware version comes up, but if I rotate the B VFO to try and get to some other menu item, it locks up, turning to the right bet to FL1 and locks and turing to the right byp kat3 and locks up. Is there some way to do a soft or hard reset and bring everything back to the default settings ??? Can't find it in the owners manual...sorry.. Paul NF8J... __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] Macro to Disable Key out
I have two antennas. One uses the K3 internal tuner and one goes through an amplifier and a manual tuner. I have a macro set to select each antenna and set the power level -- 100w for the antenna using the internal tuner and 45w to the antenna running the amp. I would like to add a command to the macro for the antenna using the internal tuner. I would like to disable the "key out" amp relay. Don't want the K3 keying the amp if it is not the antenna getting power. Since my amp doesn't have a standby position (Ten Tec Hercules II), I would also like to bypass the amp relay when tuning the manual tuner. But, I can't find a command in the Programmer's Reference to disable Key Out. Is there an undocumented command to disable Key Out? 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] [Fwd: Re: Dumb user mistake - slow transition between Tx and Rx]
Original Message Subject:Re: [Elecraft] Dumb user mistake - slow transition between Tx and Rx Date: Mon, 09 Nov 2009 07:35:36 -0500 From: Ken K3IU To: Dick Dievendorff References: <200911090302.na9325hw086...@www6.cruzio.com> <002201ca60ee$5aeb6660$10c233...@net> I had that problem, also, on several occasions. I attributed it to switching problems in my brain, but I WILL check the CW macros for ending spaces. Thanks, Dick! 73, Ken K3IU ~~ Dick Dievendorff wrote: > I noticed that I was sometimes losing the first character when people > responded to my CQ messages. The receiver seemed slow to come back to full > sensitivity after transmit. > > I thought about this for a while, then I went to my recorded CW messages and > removed the trailing blank I sometimes insert because I have in the past > wanted to chain messages. The trailing blank caused N1MM/Winkey to hold > down the PTT for that extra character time. When I removed the trailing > blanks from my recorded CW messages the return-to-receive was a lot > snappier... > > Dick, K6KR > __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] FW: K3 SWR Accuracy - reprise
Dear Dick, Thank you for the posting and thanks also to Jack for his thorough and professional analysis. Like Stewart I was interested to see the similarity between his findings and Jack's, and also my own on 40m as discussed on and off the reflector in May this year. 73 to all Geoff G3UCK - Original Message - From: "Edward Dickinson, III" Sent: Monday, November 09, 2009 3:18 AM ___ > > From: Jack Smith [mailto:jack.sm...@cliftonlaboratories.com] > Sent: Sunday, November 08, 2009 10:00 PM > To: Edward Dickinson, III > Subject: Re: [Elecraft] K3 SWR Accuracy - reprise > > Dick: > > http://www.cliftonlaboratories.com/swr_accuracy.htm > > I posted a message to the Elecraft reflector about the page being > available > but it has not shown up after an hour and a half. > > Jack K8ZOA __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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 SWR Accuracy - reprise
Hi Jack, Thank you for the time and effort you spent on making and reporting measurements on the K3 SWR accuracy. You have saved me from the chore of further investigations. It is interesting to note the close degree of correlation between the measurements that you made using calibrated high accuracy components, and mine made with more run of the mill items. In addition your results show just what a small effect some of the parasitic effects like the length of coax used and the LP-100 coupler being in circuit have on overall measurement accuracy. It maybe that Wayne can make changes to the firmware to compensate for the KAT3 strays. I would have thought that as the KAT3 is a factory produced item the variation in strays between individual units would be minimal, and therefore a high SWR measurement repeatability could be achieved. 73 Stewart G3RXQ __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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: saving space
Yes it does have a caps lock key, you access it via Fn+Tab I has all the normal keys you'd expect, including PrintScreen and NumLock etc. and 12 function keys. I agree about where the control key is, but I never found it a problem. Ctrl+Alt+Del does involve 2 hands and 4 fingers (need Fn+~ to get Del), but you quickly get used to it. And some of the keys are configurable via DIP switches. The USB version also acts as an unpowered hub with 2 USB sockets on it. I've used one for many years and found them to be excellent. 73 de M0XDF, K3 #174 -- When you want to test the depths of a stream, don't use both feet. -Chinese Proverb On 9 Nov 2009, at 01:35, Leigh L. Klotz, Jr WA5ZNU wrote: > That's an amazing price, but if once you get it it turns out not to be > of the quality you need, you might like the Happy Hacking Keyboard > Lite II: > > http://www.pfusystems.com/hhkeyboard/hhkeyboard.html > > It doesn't have a caps lock key, and the control key is in the "MIT > Keyboard" location. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] RFI
Understood. 73 Stewart G3RXQ On Sun, 8 Nov 2009 12:45:46 -0500, Joe Subich, W4TV wrote: > > That modification applies only to RF into the audio (MK II > preamp) because of the layout in the first production run. > It does not impact common mode RF in the shack which is > what John's symptoms indicate. > > 73, > > ... Joe, W4TV > __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
