I'm good with about a 10% error (on the cautious side), and since I'm a contester, I want to ensure I'm never over about 1425 Watts when I'm competing. The Alpha 4510 was supposedly calibrated to known standards as well (for $1150 new it darned well better have been). I can live with it reading a tad high. However I was hoping to sell it to help fund my upcoming KP-1500 purchase, but the TX MON doesn't seem to be the solution, which is most unfortunate. I love what it does, but the accuracy is a problem.
- pjd -----Original Message----- From: Don Wilhelm [mailto:[email protected]] Sent: Thursday, July 19, 2018 6:35 PM To: Peter Dougherty; [email protected] Subject: Re: [Elecraft] Calibrating the P3 Station Monitor? Peter, Realistic instrument errors are up to 20% - check the ARRL Product reviews. It just seems your Alpha meter is off in one direction and the TX MONitor is off in the other direction. See if you can borrow an LP100 wattmeter which has been calibrated by N3LP to NIST tracable standards. That will provide you with an up to 5% error. Larry is reluctant to specify the error any closer than 5%. In this age of digital displays, we have a tendency to believe that the display is accurate down to the last displayed digit. More often than not, that is not true. ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[email protected] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [email protected]

