Search found 3 matches

by stefanoaz
Mon Nov 11, 2019 10:51 pm
Forum: Software Library
Topic: RTC Calibration program
Replies: 43
Views: 34037

Re: RTC Calibration program

Thanks for this feature. I remember it was available in my otherwise unloved HP48, and I was hoping to see it in the DM42. -16.2 ppm dialed in. Always nice to have accurate time.
by stefanoaz
Sat May 05, 2018 9:10 pm
Forum: Usage tips, tricks and problem reports
Topic: And still it keeps on going
Replies: 12
Views: 8876

Re: And still it keeps on going

As the battery voltage goes down in stand-by mode, the battery internal resistance increases. That means that, under load, such as running a program, the battery voltage will sag more. Since the calculator battery meter has a filtered response time, it will not report the total depth of the sag duri...
by stefanoaz
Wed Apr 25, 2018 7:24 am
Forum: DM42
Topic: My Calculator DM42 ist arrived ;-)
Replies: 63
Views: 46174

Re: My Calculator DM42 ist arrived ;-)

My s/n 830 arrived on 4/17, seven weekdays after my order - decent transit time to Arizona. I remember when the HP42S was introduced. I had owned an HP41C since 1980 and it got me through university, and my first years at work. I was anxious to see what improvements were in the new model. It was ast...