Re: [Elecraft] [P3] P3 woes - repaired but now claims my K3s puts out 873W!

Dave: You may have redefined Poynting’s Theorem! Ed McCann > On Apr 7, 2023, at 6:23 PM, Dave New, N8SBE wrote: > > Don, > > The KPA500 (and K3s) both show the correct wattage - 100W barefoot and about > 26W out of the K3s when the KPA500 is inline, and about 500W out of the > KPA500. >

Re: [Elecraft] [P3] P3 woes - repaired but now claims my K3s puts out 873W!

Don, The KPA500 (and K3s) both show the correct wattage - 100W barefoot and about 26W out of the K3s when the KPA500 is inline, and about 500W out of the KPA500. I tried changing the P3 SensorCal value from 500 (default) to 350 (min) but that only dropped the wattage shown by a little less

Re: [Elecraft] [P3] P3 woes - repaired but now claims my K3s puts out 873W!

Alan, I tried changing the SensorCal entry, but you are correct there isn't enough range. It only cut the reading by less than half. When I change the MtrScale entry, it changes the meter scale, but it still shows over 800W (and runs over the smaller scales) in text on the screen. I did

Re: [Elecraft] [P3] P3 woes - repaired but now claims my K3s puts out 873W!

Dave, Yes, it is at 500 which is the default, and I've used it at the setting for the past 13 years. I tried changing it to 350 which is the minimum, and it now shows about 440W, so that seems about right for 350/500 * 873W. But it seems there isn't enough range to pull it in to 100W, so I

[Elecraft] Fwd: Way Off Topic — Sorry

> > I see this as highly suspect > > Regards, > > Mark, K1RX > > >> On Apr 7, 2023, at 6:22 PM, Richard wrote: >> >> Are you familiar with general hospital protocol with regard to patient >> discharge procedure? >> >> If you can help, please email me at my home address in the Cc line

Re: [Elecraft] [P3] P3 woes - repaired but now claims my K3s puts out 873W!

Hi Dave, There is a "SensorCal" entry in the Transmit Monitor Menu, but I don't think it has enough range to correct such a large error. There is also a "MtrScale" entry to set the full-scale power on the meter display.  Does the reading change when you change the scale? In addition to the

[Elecraft] Way Off Topic — Sorry

Are you familiar with general hospital protocol with regard to patient discharge procedure? If you can help, please email me at my home address in the Cc line above. flat...@comcast.net Thanks. Richard Kunc W4KBX

Re: [Elecraft] [P3] P3 woes - repaired but now claims my K3s puts out 873W!

Dave, What power is displayed on the KPA500?  The KPA500 would fault if indeed the K3s is putting out that much power.  The KPA500 power bar is pretty accurate, just a bit coarse in its increments. I think a power calibration is in order for the P3 power indicator. 73, Don W3FPR On

Re: [Elecraft] [P3] P3 woes - repaired but now claims my K3s puts out 873W!

Have you looked at the calibration setting in it yet? Not sure if it can pull it that far, but that may be what is off. 73, and thanks, Dave (NK7Z) https://www.nk7z.net ARRL Volunteer Examiner ARRL Technical Specialist, RFI ARRL Asst. Director, NW Division, Technical Resources On 4/7/23

[Elecraft] [P3] P3 woes - repaired but now claims my K3s puts out 873W!

So, I was the guy that had a P3 display/boot problem recently. I sent it to the mother ship for repair, and they found that (get this) the 12V supply was shorted to the 3.3V supply (eep!). So, a new(er) I/O board (which contains the supplies) and a replacement blown 3.3V LCD controller later,