Got the kit for Christmas from the XYL. A nice build. Smooth. Whole enchilada took me about 5 1/2 hours, starting late this morning, with pauses for...
Thanks Steve. You're a quick worker... maybe because you did it when you were fresh ;-) It generally takes about 8 hours the first time through. I wish I had...
Larry and the group, I received my LP100 kit several weeks ago but didn't get a chance to work on it until this week. I finished it this evening, and it seems...
As long as the current xfmr can't shift position you should be OK. You could always tack it down with a couple dabs of neutral cure RTV if you have some. If...
Hi Larry, Will you consider resetting the display timeout when any of the panel buttons is pressed? While exploring the calibration menu, it's a bit ...
If you press the Fast/Slow button it will cancel the screensaver as long as you are not in Setup/CAL mode. In the latest beta version of the firmware I have...
Hello lp-100 users! I have a question: is there a way, from the front-panel controls, to defeat the autoranging, and select a fixed-range for power indication,...
I have been notified that the delivery of the PLED displays for the 4th run will be delayed until March 1. I have enough spares on hand to fill current orders,...
Larry, One consideration with the VFD is heat. Presently, your PLED display with the LP-100 runs exceptionally cool. OTOH, my ArraySolutions PowerMaster runs...
Hi Larry, Got the LP-100 today. Tnx for the quick turn around calibrating and upgrading the software. It works like a dream. I have it mounted on the output of...
Thanks Paul. Yes, that was a concern of mine. The PM uses a 16x2 VFD, and mine would be a 20x2, so it would dissipate even more heat than the PM. The current...
I tune my linear amplifier for the amount of power I intend to run into a Termaline 50 ohm dummy load. The dummy load is switched from my antenna tuner. This...
I don't think it makes too much difference, Roy. With either the dummy load or antenna, the input to the tuner should be 50 ohms when properly tuned. Depending...
Roy I'm sure Larry is right that there is little practical difference. However, when I installed my LP-100 its superb accuracy revealed some interesting...
Good news. The scare is over. I was able to obtain several hundred PLED displays. The issue was an upcoming plant retooling for an improved version of the...
I have been using my LP-100 with the impedance calibrated but I don't have any way to calibrate the power - yet. I'm very happy with the readings anyway. It...
Please excuse the newbie here...I'll try to catch up quick! Is it possible to view forward/reflected power bar graphs (no SWR, just Pwr)? Is it possible to set...
... Only in the Windoze software panel. This is a matter of how many options/screens is too much and makes the operation cumbersome. It certainly would be easy...
Your calculation correctly accounts for the voltage drop and effect of the voltage divider to provide a peak reading, and then correctly divides by 100 to...
Thanks Larry. The resistor on the K2 RF probe is a gold band 5% and my DMM claims 1% in those ranges. The K2 is a classic, and the default values in the LP-100...
The probe should be better than 10% then. You could measure the 4.7M with the DMM and adjust your calculation... that should get you to 5% or better. The Ridge...
I have uploaded firmware version 1.1.46 to the Updates page. It fixes a peak SWR reset bug that was causing the peak power reading to appear high when SWR was...
Ian, I can't quite picture your test set-up, so the following may be totally wrong, but ....... If your DMM is measuring 15.0 volts, and its 11M input...
... Steve, You're right. I just did the measurements again and at around 13.5 Watts I measured 23.9 volts. It is indeed at 4.6 Watts that I measured 15 volts....
Yes, my initial calculation was also about 4.6W, but by the time I responded I forgot to mention it. The purpose of the divider in the Elecraft probe is to...
Yes, I banged my head against the wall over this as well. Remember that, Larry? I finally just built the little sample circuit in the manual and it worked...
Yes. I have a Boonton RMS voltmeter and I used to use it before obtaining the Boonton and HP wattmeters. If it's decently calibrated it should be fine. Watch...
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