Re: [Elecraft] K2 commands - software guru help needed
Jack wrote: > This is correct, and exactly what happens. As noted below, a mode > change will change the setting of the mode for the current band. An > ensuing band change will then take effect and restore the previously > saved mode for the new band. This makes a lot of sense, and should be > considered a bug in any program that expects things to happen the > opposite way. I suspect it is not a bug, more like the developer(s) worked on a transciever that behaved like my TS140S. Mode settings on my TS140s do not change when the band changes. Regards Tony G7IGG ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net http://mailman.qth.net/mailman/listinfo/elecraft You must subscribe to post. Subscriber Info (Addr. Change, Unsub etc): http://mailman.qth.net/subscribers.htm Elecraft page: http://www.elecraft.com
[Elecraft] K2 #4293 KAT2, KNB2 etc.
Hi! Last weekend I completed KAT2 and KNB2 installation. KNB2 seem to work, but not yet detected any pulse noise on the bands. Regarding KAT2 alignment. 5 W doesn't move needle too much on my Daiwa SWR/power meter, so I can't get accurate power reading for R1 adjustment. I have borrowed Heathkit Cantenna dummy load from our club. There is DC voltage available from this, but I don't have any idea how to convert it to Watts. I have looked in the internet for manual, but only found them for sale. BTW, cantenna resistor is 47 ohms measured with DMM. Should I make small dummy load from resistors similar to DL1 from Elecraft? I ordered XG1 instead of DL1. Maybe I should have read option manuals more carefully to know that I will need it too :( I did MDS measurements last night with XG1. There is small difference between ANT1 and ANT2 connectors of KAT2. ANT1 is -137 dB and ANT2 -135,7 dB. Is there some fault or is it normal? Anyway, I have made several QSOs during weekend. K2 drives my Commander amp to about 500-600 watts and it really helps in pile-ups, YI and 9M2 @ 15m. With 5 watts I got KL7 @ 20m and 4X @ 15m. I need to repair my antenna rotator, beam was pointing towards north all the time. Made also many QSOs from apartment with random wire antenna at 5-10 watts. Including couple of UA9s (closest DX fm hr) on 40 meters. 73 de Jukka, OH4MFA K2 #4293 ___ Parhaat hakupalvelut yhdessä osoitteessa: http://www.eniro.fi/ Suomalaisten yritysten tuotteet ja palvelut: http://yritykset.eniro.fi/ ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net http://mailman.qth.net/mailman/listinfo/elecraft You must subscribe to post. Subscriber Info (Addr. Change, Unsub etc): http://mailman.qth.net/subscribers.htm Elecraft page: http://www.elecraft.com
[Elecraft] Resistance checks
Hi all I just completed the control board last night. 8.5 hrs to build. look at part, verify part, install part verify again, then solder then check solder. HI HI anyhow. I did the resistance checks as perscribed in the manual Everything is ok but U6 pin 13 and 14 greater than 100k well its only 85k any ideas before I dig in? The only reference that I could locate in the builders resource was to resistance checks with an analog meter I am using a fluke digital little older but ok Thanks David KR4OW __ Do you Yahoo!? New and Improved Yahoo! Mail - 100MB free storage! http://promotions.yahoo.com/new_mail ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net http://mailman.qth.net/mailman/listinfo/elecraft You must subscribe to post. Subscriber Info (Addr. Change, Unsub etc): http://mailman.qth.net/subscribers.htm Elecraft page: http://www.elecraft.com
Re: [Elecraft] K2 #4293 KAT2, KNB2 etc.
Jukka, Why not just use the RF probe built from the parts supplied with the K2 kit and you will have an instrument that you can trust? The RF probe built into the Heath cantenna MAY be the same thing, but I just can't recall how it is configured. Then you can use the RF probe (and your DMM) connected across the dummy load to measure the rms RF voltage and determine the power output = V*V/R. (The DMM should read the rms value of the RF voltage directly for voltages above about 1 volt) Of course, you must know the resistance of the dummy load accurately too if you are expecting to do an accurate calibration. For a dummy load to be a true dummy load, it must be entirely resistive (no reactance) at the frequency it is being driven. The old Heath cantenna is only OK in this respect, and I have heard reports that the resistance does change a bit with age. (You can check a dummy load by measuring it with an antenna analyzer.) 73, Don W3FPR Life is what happens when you are making other plans - Original Message - From: "Jukka Tarvainen (OH4MFA)" <[EMAIL PROTECTED]> To: Sent: Monday, June 21, 2004 5:25 AM Subject: [Elecraft] K2 #4293 KAT2, KNB2 etc. Hi! Last weekend I completed KAT2 and KNB2 installation. KNB2 seem to work, but not yet detected any pulse noise on the bands. Regarding KAT2 alignment. 5 W doesn't move needle too much on my Daiwa SWR/power meter, so I can't get accurate power reading for R1 adjustment. I have borrowed Heathkit Cantenna dummy load from our club. There is DC voltage available from this, but I don't have any idea how to convert it to Watts. I have looked in the internet for manual, but only found them for sale. BTW, cantenna resistor is 47 ohms measured with DMM. Should I make small dummy load from resistors similar to DL1 from Elecraft? I ordered XG1 instead of DL1. Maybe I should have read option manuals more carefully to know that I will need it too :( I did MDS measurements last night with XG1. There is small difference between ANT1 and ANT2 connectors of KAT2. ANT1 is -137 dB and ANT2 -135,7 dB. Is there some fault or is it normal? Anyway, I have made several QSOs during weekend. K2 drives my Commander amp to about 500-600 watts and it really helps in pile-ups, YI and 9M2 @ 15m. With 5 watts I got KL7 @ 20m and 4X @ 15m. I need to repair my antenna rotator, beam was pointing towards north all the time. Made also many QSOs from apartment with random wire antenna at 5-10 watts. Including couple of UA9s (closest DX fm hr) on 40 meters. 73 de Jukka, OH4MFA K2 #4293 ___ Parhaat hakupalvelut yhdessä osoitteessa: http://www.eniro.fi/ Suomalaisten yritysten tuotteet ja palvelut: http://yritykset.eniro.fi/ ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net http://mailman.qth.net/mailman/listinfo/elecraft You must subscribe to post. Subscriber Info (Addr. Change, Unsub etc): http://mailman.qth.net/subscribers.htm Elecraft page: http://www.elecraft.com ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net http://mailman.qth.net/mailman/listinfo/elecraft You must subscribe to post. Subscriber Info (Addr. Change, Unsub etc): http://mailman.qth.net/subscribers.htm Elecraft page: http://www.elecraft.com
[Elecraft] K2 menu change
Reflector Members, This weekend I tried to connect two XV transverters to my K2/100. The K2 is updated and has the 60 meter mods installed. When I went to the menu and changed Transverter 1 from off to on and then punched in the 5000 as directed I have a soft steady tone from the speaker while in the CW mode. If the mode is changed to Upper SB then the tone intensifies and gets higher and louder. When changed to the Lower SB mode the tone is gone. This all will occur with everything connected to the K2/100 back panel and again with nothing connected to the K2/100 back panel. Can anyone offer some suggestions? Paul K8QT #3479 ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net http://mailman.qth.net/mailman/listinfo/elecraft You must subscribe to post. Subscriber Info (Addr. Change, Unsub etc): http://mailman.qth.net/subscribers.htm Elecraft page: http://www.elecraft.com
Re: [Elecraft] K2 menu change
Paul, While I can't think of any definite reasons, but it sounds like you are hearing a carrier somewhere near where the K2 input is tuned (28 mHz band). One question - have you updated your KPA100 with the recent changes or do you have a recent KPA100? If not, an artifact from the crystal frequency in the KPA100 may be what you are hearing - the update changes that crystal from 16.289 to 18.432 mHz. 73, Don W3FPR Life is what happens when you are making other plans - Original Message - This weekend I tried to connect two XV transverters to my K2/100. The K2 is updated and has the 60 meter mods installed. When I went to the menu and changed Transverter 1 from off to on and then punched in the 5000 as directed I have a soft steady tone from the speaker while in the CW mode. If the mode is changed to Upper SB then the tone intensifies and gets higher and louder. When changed to the Lower SB mode the tone is gone. This all will occur with everything connected to the K2/100 back panel and again with nothing connected to the K2/100 back panel. ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net http://mailman.qth.net/mailman/listinfo/elecraft You must subscribe to post. Subscriber Info (Addr. Change, Unsub etc): http://mailman.qth.net/subscribers.htm Elecraft page: http://www.elecraft.com
[Elecraft] URL for you :)
Howdy Wayne, Please check out http://www.qsl.net/al7fs/ThePtarmiganHunt.htm and view the first photo. Doesn't that K2 look cozy out there in the wilderness of Alaska. The op looks like he's having fun working Ptarmigans :) Hasta luego, Kevin. ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net http://mailman.qth.net/mailman/listinfo/elecraft You must subscribe to post. Subscriber Info (Addr. Change, Unsub etc): http://mailman.qth.net/subscribers.htm Elecraft page: http://www.elecraft.com
TR : [Elecraft] Signal tracing with a scope
Answer I received that does not appear in the newsgroup. Thanks. -Message d'origine- De : [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] De la part de JEAN-FRANCOIS MENARD Envoyé : 20 juin 2004 19:07 À : elecraft@mailman.qth.net Objet : [Elecraft] Signal tracing with a scope Ok. I see that on my oscilloscope I can have the "True RMS readout (Vrms ac)" is it the same thing as we get when we take a mesure using the RF probe that we built in the K2 kit ??? The RF probe that we built in the kit should convert RF into Vrms when we set the DMM in DC 20V-30V and in the "Signal tracing" chapter, we can take many readouts of certain part of the K2. With the RF probe using the DMM, I have correct values in the range that they mentioned, but using my scope for the same reading, the values are not same, even sometime not near of. Maybe I missed something or maybe I mixed values and unit used... but "True RMS readout Vrms ac" is not the same as we get using the RF probe with a DMM ??? Or is there any conversion or formula I could use to have the correct answer using my scope ??? Thanks for your patience !!! 73 === Jean-François Ménard / VA2VYZ [EMAIL PROTECTED] Club d'Astronomie Amateur de Sherbrooke Club Radio Amateur de l'Estrie Mon site web personnel : http://homepage.mac.com/jfmenard === ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net http://mailman.qth.net/mailman/listinfo/elecraft You must subscribe to post. Subscriber Info (Addr. Change, Unsub etc): http://mailman.qth.net/subscribers.htm Elecraft page: http://www.elecraft.com ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net http://mailman.qth.net/mailman/listinfo/elecraft You must subscribe to post. Subscriber Info (Addr. Change, Unsub etc): http://mailman.qth.net/subscribers.htm Elecraft page: http://www.elecraft.com
TR : [Elecraft] Oscilloscope... need info for a newbie
Answer I received that does not appear in the newsgroup. Thanks. -Message d'origine- De : Tony Wells [mailto:[EMAIL PROTECTED] Envoyé : 20 juin 2004 10:46 À : JEAN-FRANCOIS MENARD Objet : Re: [Elecraft] Oscilloscope... need info for a newbie Hi Jean-francois, The scope is good. I have one. However you need a good probe for RF. What are you using? I'm using an old but very reliable Tectronix probe, and I get good AF and RF results. Regards Tony G7IGG - Original Message - From: "JEAN-FRANCOIS MENARD" <[EMAIL PROTECTED]> To: Sent: Sunday, June 20, 2004 3:32 PM Subject: [Elecraft] Oscilloscope... need info for a newbie Hi, As I saw in the K2 manual telling that having an oscilloscope could be a good thing such as have more precise band filter tuned, etc, etc... I bought yesterday a "personal scope" and I would like to know how I could take a few mesures to make sure that the scope is working properly. I found a website that tell and show a few graphs that a builders should see when scoping the K2, but I cannnot acheive the same thing. Actually, I have a full working basic K2 #4130. The scope I bought is HPS40 from Velleman. I read the manual and a few basic document telling me how to use a scope. I know how to setup good scale according to what I suppose to mesure but I think I misse something Any idea or help would be appreciated. 73 === Jean-François Ménard / VA2VYZ [EMAIL PROTECTED] Amateur Radio Club of Sherbrooke, Quebec, Canada Web site: http://homepage.mac.com/jfmenard === ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net http://mailman.qth.net/mailman/listinfo/elecraft You must subscribe to post. Subscriber Info (Addr. Change, Unsub etc): http://mailman.qth.net/subscribers.htm Elecraft page: http://www.elecraft.com ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net http://mailman.qth.net/mailman/listinfo/elecraft You must subscribe to post. Subscriber Info (Addr. Change, Unsub etc): http://mailman.qth.net/subscribers.htm Elecraft page: http://www.elecraft.com
TR : [Elecraft] Oscilloscope help part 2 ;-)
Answer I received that does not appear in the newsgroup. Thanks. -Message d'origine- De : Bob-W5BIG [mailto:[EMAIL PROTECTED] Envoyé : 20 juin 2004 19:29 À : JEAN-FRANCOIS MENARD Objet : Re: [Elecraft] Oscilloscope help part 2 ;-) Hello Jean-Francois, You can connect your scope probe to a terminal on your dummy load to see the output of the transmitter. Adjust the filters for a maximum signal in the vertical direction with the frequency near the center of each band. You can measure the peak to peak output by putting the horizontal scale to about 10 microseconds per division (the exact scale isn't critical). Then you will see a solid band across the screen. The peak to peak voltage is the height of this band. Let V = peak to peak voltage Power in watts = V*V/(8*Dummy_Load_Resistance) You can measure the Dummy_Load_Resistance with a digital ohm meter. 73/ Bob - W5BIG - Original Message - From: "JEAN-FRANCOIS MENARD" <[EMAIL PROTECTED]> To: Sent: Sunday, June 20, 2004 4:55 PM Subject: [Elecraft] Oscilloscope help part 2 ;-) Ok, first thanks for all people that post something about using a scope. Now I am more familiar with my scope. My second question is, like in the manual of the K2 on page 75 regarding 40 meter transmitter alignement, telling that we could use an oscilloscope to adjust all band pass filter in the K2. Ok, now I have one, but now where do I put my probe in the K2 and what should I expect to see on the scope when the bandpass are correctly adjust or disadjust ??? I should expect that I go the same way for all bandpass filters ??? As a newbie I am, I must have a more detail routine to do some stuff like this. But be sure this will help me !!! ;-) Big thanks again to all of you. P.S. My scope is a Velleman HPS40 with the 60 Mhz 1x / 10x probe. 73 === Jean-François Ménard / VA2VYZ [EMAIL PROTECTED] Amateur Radio Club of Sherbrooke, Quebec, Canada Web site: http://homepage.mac.com/jfmenard === ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net http://mailman.qth.net/mailman/listinfo/elecraft You must subscribe to post. Subscriber Info (Addr. Change, Unsub etc): http://mailman.qth.net/subscribers.htm Elecraft page: http://www.elecraft.com ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net http://mailman.qth.net/mailman/listinfo/elecraft You must subscribe to post. Subscriber Info (Addr. Change, Unsub etc): http://mailman.qth.net/subscribers.htm Elecraft page: http://www.elecraft.com
Re: [Elecraft] K2 menu change
G'day, > While I can't think of any definite reasons, but it sounds like you are > hearing a carrier somewhere near where the K2 input is tuned (28 mHz band). 7th harmonic of the 4 MHz clock in the KPA100? It runs all the time. Easily heard at the bottom end of 28 MHz. Similarly the 4 MHz clock on the K2 control board. Regards, Mike VP8NO ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net http://mailman.qth.net/mailman/listinfo/elecraft You must subscribe to post. Subscriber Info (Addr. Change, Unsub etc): http://mailman.qth.net/subscribers.htm Elecraft page: http://www.elecraft.com
[Elecraft] Firmware Upgrade
Within the last three or four months I upgraded all firmware chips for my 3 year old K2/100/KAT100-1 (so I could do the CW bandwidth mod and install the 60 meter board). I received version 1.08b for my KSB2. Since then I have purchased a new KSB2 that has version 1.09. What does the 1.09 supposed to do that the 1.08b does not do? Thanks Roy Morris W4WFB ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net http://mailman.qth.net/mailman/listinfo/elecraft You must subscribe to post. Subscriber Info (Addr. Change, Unsub etc): http://mailman.qth.net/subscribers.htm Elecraft page: http://www.elecraft.com
RE: [Elecraft] SMK-1, and a sideways congratulations note
As I constructed my KX1... It just seemed to beg for some SMT components, particularly the bypass caps... In several places, a 1206 sized component would have fit better than the leaded part! And it seemed the hole spacing would even lend itself to the installation of an SMT device It just got me to thinking. I wonder if I could rework mine? 73, Steve aa8af -Original Message- Subject: [Elecraft] SMK-1, and a sideways congratulations note Thanks for all the responses, guys. The rig was spoken for within minutes of my post. Elecrafters are FAST on the keyboards! I hope to work the little NorCal rig again soon, this time on the other end. And, I hope that Elecraft decides to make surface-mount kits sometime, too. ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net http://mailman.qth.net/mailman/listinfo/elecraft You must subscribe to post. Subscriber Info (Addr. Change, Unsub etc): http://mailman.qth.net/subscribers.htm Elecraft page: http://www.elecraft.com
[Elecraft] Follow Up: Field Day - Laptop Power Consumption
Thanks to the many who replied. Most suggested running the laptop directly with DC power or through a DC to DC converter if voltages were not compatible. Unfortunately BOTH old laptops I have (Toshiba and Hitachi) use a direct AC power only with no DC port. I suppose I could jury rig some connection using the internal battery connection pins but I'm not inclined to do that. I'll definitely be looking for a used laptop that will accept direct DC power (IBM Think Pads seem to be one good option). Several mentioned success with DC to AC inverters but cautioned about RFI. Indeed I just tried two different units today, both had terrible RFI on many bands. I'm operating from an extremely quiet location so I am not inclined to spoil my hearing ability for the convenience of computer logging. Sooo...back to manual logging and dupe sheets. Fortunately I have several of the latter left over from the 80's! Since I'll probably be lucky to make 600 QSO's with QRP, hopefully I can keep up with logging and dupe sheets. Field Day is supposed to be fun and "not a contest", so I'll just forget about the laptop and pretend I'm back in "the good old days". Thanks to all who replied! 73, Bill W4ZV P.S. I'll be operating from Dark Springs Mountain in the oldest mountain range in North America...not the Appalachian Mountains...but the Uwharrie Mountains. ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net http://mailman.qth.net/mailman/listinfo/elecraft You must subscribe to post. Subscriber Info (Addr. Change, Unsub etc): http://mailman.qth.net/subscribers.htm Elecraft page: http://www.elecraft.com
Re: [Elecraft] Oscilloscope help part 2 ;-)
My oscilloscope have only an input amplifier bandwidth of 14 Mhz maximum... will it be enough to adjust all bandpass on all bands ??? Le 04-06-20, à 18:29, Don Wilhelm a écrit : When adjusting the bandpass filters for transmit, I do use a 'scope. The 'scope is doing nothing more that acting as a sensitive analog RF voltmeter, so nothing complex is required on setting the 'scope time base. Just connect the 'scope probe across the dummy load (I use a 10x probe), press TUNE on the K2 and you should see an RF envelope display on the 'scope face - if not adjust the vertical amp and the trigger level until something is displayed - then set the time base so you are seeubg the CW envelope rather than a few cycles of the RF. As you adjust the bandpass filter, you should see the vertical deflection on the 'scope face shrink and grow in response to the tuning - adjust for the largest display height. 73, Don W3FPR Life is what happens when you are making other plans - Original Message - My second question is, like in the manual of the K2 on page 75 regarding 40 meter transmitter alignement, telling that we could use an oscilloscope to adjust all band pass filter in the K2. Ok, now I have one, but now where do I put my probe in the K2 and what should I expect to see on the scope when the bandpass are correctly adjust or disadjust ??? I should expect that I go the same way for all bandpass filters ??? As a newbie I am, I must have a more detail routine to do some stuff like this. But be sure this will help me !!! ;-) === Jean-François Ménard / VA2VYZ [EMAIL PROTECTED] Club d'Astronomie Amateur de Sherbrooke Club Radio Amateur de l'Estrie Mon site web personnel : http://homepage.mac.com/jfmenard === ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net http://mailman.qth.net/mailman/listinfo/elecraft You must subscribe to post. Subscriber Info (Addr. Change, Unsub etc): http://mailman.qth.net/subscribers.htm Elecraft page: http://www.elecraft.com
Re: [Elecraft] Oscilloscope help part 2 ;-)
JEAN-FRANCOIS MENARD wrote: My oscilloscope have only an input amplifier bandwidth of 14 Mhz maximum... will it be enough to adjust all bandpass on all bands ??? Yes, because all you care about is a relative voltage indication -- you are not trying to view a waveshape accurately or measure the absolute voltage. -- 73, Vic, K2VCO Fresno CA http://www.qsl.net/k2vco ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net http://mailman.qth.net/mailman/listinfo/elecraft You must subscribe to post. Subscriber Info (Addr. Change, Unsub etc): http://mailman.qth.net/subscribers.htm Elecraft page: http://www.elecraft.com
Re: [Elecraft] Oscilloscope help part 2 ;-)
Big thanks !! Le 04-06-21, à 21:59, Vic Rosenthal a écrit : JEAN-FRANCOIS MENARD wrote: My oscilloscope have only an input amplifier bandwidth of 14 Mhz maximum... will it be enough to adjust all bandpass on all bands ??? Yes, because all you care about is a relative voltage indication -- you are not trying to view a waveshape accurately or measure the absolute voltage. -- 73, Vic, K2VCO Fresno CA http://www.qsl.net/k2vco === Jean-François Ménard / VA2VYZ [EMAIL PROTECTED] Club d'Astronomie Amateur de Sherbrooke Club Radio Amateur de l'Estrie Mon site web personnel : http://homepage.mac.com/jfmenard === ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net http://mailman.qth.net/mailman/listinfo/elecraft You must subscribe to post. Subscriber Info (Addr. Change, Unsub etc): http://mailman.qth.net/subscribers.htm Elecraft page: http://www.elecraft.com
[Elecraft] KPA-100 Bias adjustment
Hello all, having built the KPA-100 and passed the SWR test on page 44 (yes I did use the wrong toroid for T4), I'm having a problem with the PA bias adjustment. Setup as per manual, I have an idle current of 530 mA, which gives me a target current of 930 mA. When I press and hold the TUNE button, the current drops to 450 mA and stays there no matter where R6 are positioned. Any suggestions. DK1HTX, K2 #3792 Henrik Tuxen [EMAIL PROTECTED] ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net http://mailman.qth.net/mailman/listinfo/elecraft You must subscribe to post. Subscriber Info (Addr. Change, Unsub etc): http://mailman.qth.net/subscribers.htm Elecraft page: http://www.elecraft.com
