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Hi Folks,
I've just installed the 80-30 board (filter left to go), and in making the final current and voltage checks, I was unsure if one reading was too high. If the current draw after the LED times out is between 34 and 37 ma, good. If it's much higher than that, it could indicate a short. How much higher? I got a reading of about 38.9 ma. The various voltage checks all were fine, between 4.8 and 5 vdc. So I presume those are OK. It's the current measurement that I'm a bit concerned about. Any thoughts, other than I need to chill? ;-) With best regards, Pete -- Peter N. Spotts -- W1PNS http://www.w1pns.net Email: [hidden email] | Skype: pspotts QCWA #34679 | SKCC #4853T | QRP-ARCI #4174 NEQRP #714 | NAQCC #2446 | GQRP #13202 "Amateur radio is a contact sport. Get on the air and make a contact!" -- Lyle Amundson, K0LFV ______________________________________________________________ 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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Pour yourself a glass of wine and finish the KX1 tomorrow Peter. :-)
You're totally within the tolerance on the components, supply voltage ... and your meter. All of the Elecraft resistance/voltage/current checks are designed to be essentially obvious unless they tell you in the manual, and then they become very specific about it [generally in the areas of VCO voltage ranges, and the like]. You're cool, you can chill. You are going to have a blast with your KX1! KX1 #697 K2 #4398 K3 #642 P3 KPA500 KAT500 73, Fred K6DGW - Northern California Contest Club - CU in the 2013 Cal QSO Party 5-6 Oct 2013 - www.cqp.org On 6/26/2013 6:39 PM, Peter N. Spotts wrote: > Hi Folks, > > I've just installed the 80-30 board (filter left to go), and in making > the final current and voltage checks, I was unsure if one reading was > too high. If the current draw after the LED times out is between 34 and > 37 ma, good. If it's much higher than that, it could indicate a short. > How much higher? > > I got a reading of about 38.9 ma. The various voltage checks all were > fine, between 4.8 and 5 vdc. So I presume those are OK. It's the current > measurement that I'm a bit concerned about. ______________________________________________________________ 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 w1pns
Pete,
That does not sound excessive - it is within a 10% range. The current draw on 80 meters will be a bit higher than other bands because the relay on the LPF board is not a latching type, so it must draw current when 80 meters is selected. 73, Don W3FPR On 6/26/2013 9:39 PM, Peter N. Spotts wrote: > Hi Folks, > > I've just installed the 80-30 board (filter left to go), and in making > the final current and voltage checks, I was unsure if one reading was > too high. If the current draw after the LED times out is between 34 > and 37 ma, good. If it's much higher than that, it could indicate a > short. How much higher? > > I got a reading of about 38.9 ma. The various voltage checks all were > fine, between 4.8 and 5 vdc. So I presume those are OK. It's the > current measurement that I'm a bit concerned about. ______________________________________________________________ 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 w1pns
Many thanks, all. I've had fun with in on 20 and 40; it's nice to finally be adding the second two bands! With best regards, Pete -- Peter N. Spotts -- W1PNS http://www.w1pns.net Email: [hidden email] | Skype: pspotts QCWA #34679 | SKCC #4853T | QRP-ARCI #4174 NEQRP #714 | NAQCC #2446 | GQRP #13202 "Amateur radio is a contact sport. Get on the air and make a contact!" -- Lyle Amundson, K0LFV ______________________________________________________________ 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 w1pns
Many thanks, all. I've had fun with it on 20 and 40; it's nice to finally be adding the second two bands! With best regards, Pete -- Peter N. Spotts -- W1PNS http://www.w1pns.net Email: [hidden email] | Skype: pspotts QCWA #34679 | SKCC #4853T | QRP-ARCI #4174 NEQRP #714 | NAQCC #2446 | GQRP #13202 "Amateur radio is a contact sport. Get on the air and make a contact!" -- Lyle Amundson, K0LFV ______________________________________________________________ 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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