K2 setting KAT2 to bypass, display SWR
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Gangue:
I am trying to set my K2 to bypass the internal KAT2 tuner and display SWR. When I set ATU CALS it shows the power out instead of SWR. When I set ATU CALP I also get power out. I am running the K2 into a dummy load through a wattmeter, wattmeter confirms SWR 1-1. Even in ATU CALS the LEDs on the front panel vary up and down by the power out not the SWR. WHAT AM I DOING WRONG? WHY AM I STILL PLAYING WITH MY K2 AT 4AM? thanks and 73 Eric WD6DBM ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html |
Re: K2 setting KAT2 to bypass, display SWR
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Eric,
Please clarify, There are no LEDs on the KAT2, but the external KAT100 does have LEDs. (The mind does get 'fuzzy' at 4 AM). In any case, if you are talking about the KAT2, CAL S should show the SWR. If it does not indicate SWR correctly, and the SWR changes with the power level, that is an indication that the bridge is not balanced - re-do the CAL n procedure to correct. Pout shows forward power and reflected power. In this setting, if the SWR is other than a perfect 1.0 match, there will be some reflected powr and it will vary with the power level. 73, Don W3FPR eric norris wrote: > Gangue: > > I am trying to set my K2 to bypass the internal KAT2 tuner and display SWR. When I set ATU CALS it shows the power out instead of SWR. When I set ATU CALP I also get power out. I am running the K2 into a dummy load through a wattmeter, wattmeter confirms SWR 1-1. Even in ATU CALS the LEDs on the front panel vary up and down by the power out not the SWR. WHAT AM I DOING WRONG? WHY AM I STILL PLAYING WITH MY K2 AT 4AM? > > thanks and 73 > > Eric WD6DBM > > ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html |
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In reply to this post by WD6DBM
Don et al:
I am referring to the front panel leds on the k2. My K2 is a QRP version with no KAT100. I get the same indication with ATU CALS as i do with ATU CALP. The KAT2 bridge must already be properly balanced since the X.X SWR display shows 1 with a KAT2 tuning operation on a dummy load. Any ideas? In the meantime ill redo the CALN procedure even though i'm sure the bridge is balanced 73 Eric Sent from my iPhone On Jan 9, 2010, at 6:53 AM, Don Wilhelm <[hidden email]> wrote: Eric, Please clarify, There are no LEDs on the KAT2, but the external KAT100 does have LEDs. (The mind does get 'fuzzy' at 4 AM). In any case, if you are talking about the KAT2, CAL S should show the SWR. If it does not indicate SWR correctly, and the SWR changes with the power level, that is an indication that the bridge is not balanced - re-do the CAL n procedure to correct. Pout shows forward power and reflected power. In this setting, if the SWR is other than a perfect 1.0 match, there will be some reflected powr and it will vary with the power level. 73, Don W3FPR eric norris wrote: Gangue: I am trying to set my K2 to bypass the internal KAT2 tuner and display SWR. When I set ATU CALS it shows the power out instead of SWR. When I set ATU CALP I also get power out. I am running the K2 into a dummy load through a wattmeter, wattmeter confirms SWR 1-1. Even in ATU CALS the LEDs on the front panel vary up and down by the power out not the SWR. WHAT AM I DOING WRONG? WHY AM I STILL PLAYING WITH MY K2 AT 4AM? thanks and 73 Eric WD6DBM ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html |
Re: K2 setting KAT2 to bypass, display SWR
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Eric,
Sorry, I misunderstood. The K2 bargraph LEDs show only a relative power scale - they never can indicate SWR. The SWR display during a TUNE operation will appear on the K2 LCD display. You will not see the SWR displayed during normal operation. If that is what you want, you will have to modify your K2 to install an SWR meter between the K2 and the KAT2 input cable - but I would hesitate to do that because if the SWR meter is accidently not attached, you could inadvertently operate the K2 without a load, and that is not good for the health of the K2. 73, Don W3FPR Eric wrote: > Don et al: > > I am referring to the front panel leds on the k2. My K2 is a QRP version with no KAT100. I get the same indication with ATU CALS as i do with ATU CALP. The KAT2 bridge must already be properly balanced since the X.X SWR display shows 1 with a KAT2 tuning operation on a dummy load. Any ideas? In the meantime ill redo the CALN procedure even though i'm sure the bridge is balanced > > 73 > > Eric > > Sent from my iPhone > > On Jan 9, 2010, at 6:53 AM, Don Wilhelm <[hidden email]> wrote: > > Eric, > > Please clarify, There are no LEDs on the KAT2, but the external KAT100 does have LEDs. (The mind does get 'fuzzy' at 4 AM). > > In any case, if you are talking about the KAT2, CAL S should show the SWR. If it does not indicate SWR correctly, and the SWR changes with the power level, that is an indication that the bridge is not balanced - re-do the CAL n procedure to correct. > > Pout shows forward power and reflected power. In this setting, if the SWR is other than a perfect 1.0 match, there will be some reflected powr and it will vary with the power level. > > 73, > Don W3FPR > > eric norris wrote: > Gangue: > > I am trying to set my K2 to bypass the internal KAT2 tuner and display SWR. When I set ATU CALS it shows the power out instead of SWR. When I set ATU CALP I also get power out. I am running the K2 into a dummy load through a wattmeter, wattmeter confirms SWR 1-1. Even in ATU CALS the LEDs on the front panel vary up and down by the power out not the SWR. WHAT AM I DOING WRONG? WHY AM I STILL PLAYING WITH MY K2 AT 4AM? > > thanks and 73 > > Eric WD6DBM > > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:[hidden email] > > 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: 9.0.725 / Virus Database: 270.14.131/2609 - Release Date: 01/09/10 02:35:00 > > Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html |
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