The point about subtle differences between two identical laptops is interesting. There could be very slight differences and the RFI could be right at the threshold of what the components can take - one handles it, the other has just the slightest difference that makes it just unable to handle the same level of RFI. For example, say there were something referred to as RFI Units, and your station had 100 RFI Units present at the laptop position. One laptop might handle 100 or even 101 RFI Units, and the other can only handle 99 RFI Units due to slight variations in components in each laptop. There are analog parts in the laptop (for example power circuits), and some variance in digital components is common (IC mfg bin parts based on post-production tests do things like speed ratings, and parts are tested aggressively for use in critical circuits like those on space crafts).
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On Aug 3, 2024, at 03:52, dc2jr via groups.io <k.j.raske@...> wrote:
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Well, These Are 2 identical Surface pro3, both Running on battery, so the rfi effect should be identical
vy 73 de Klaus, DC2JR
Von meinem iPhone gesendet
Am 02.08.2024 um 20:39 schrieb Greg Sanders via groups.io <KE5DXA@...>:
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I'm also thinking it sounds like RFI. It's working but fails. Both computers are not the same, regardless of the OS. Circuitry design, RF noise, parts used? internally being different from different vendors, etc. Even the same make and model can act differently. I once had a computer randomly reboot, changed out the power supply and the motherboard. Turned out the surge protector's MOV was bad. Had another one that kept having a screen go blank, turns out the keyboard had a bad ground and was picking up static. Troubleshooting sure can be fun ?
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Greg
KE5DXA?
