[TowerTalk] Help with semi-broken Array Solutions Power Master II Wattmeter

[john simmons]

Using a SWAG, and since the sensor isn't complex I'd look there first. Open it up and look carefully at everything under a strong light. If there is a PC board, examine both sides. Since it is off by a factor of ten, there may be a resistive voltage divider that has a resistor that has changed value, or a ground reference has been blown open. Another possibility is an open semiconductor. Good luck!

73
-de "Curly" John NI0K
QRZ.com<https://www.qrz.com/db/ni0k>
Hamshack Hotline<https://hamshackhotline.com/> call me: 6100271
On 8/12/2024 1:14 PM, Jim Brown wrote:
On 8/12/2024 8:55 AM, Mike Smith VE9AA wrote:
Recently I had some minor damage in the shack from a nearby lighting strike
and my Power Master II is no longer functioning correctly.  Jay is not
responding (retired) and I understand that.  He's sold me some great
equipment over many years and has also helped me with tech support a couple
times.  Time for him to relax.

Indeed it is. He ran a fine biz for years. >
Mine is the smaller 2 sensor system for 6m/HF SO2R (3kW?)_.

I looked at his system when it first came out, and quickly decided that it wasn't enough better than the cheap stuff that I had, and the N8LP system was far superior. I didn't have the money for it right away, but when one came up used when a member of our contest club went SK, I bought it. It had a single sensor, I added a second, and had Larry calibrate them. If you have difficulty repairing your unit, I'd jump on Larry's meter.

73, Jim K9YC


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