[Elecraft] Airplane instruments issue

[Mike Short]

Need a recommendation for a USB oscilloscope still. Want to monitor the
power bus while the plane is flying to see if there are spikes or noise
that may be causing the monitor to go haywire.

On Sun, Nov 17, 2024 at 10:13 Mike Short <ai4ns.mike at gmail.com> wrote:

> My son has a Piper Cherokee and recently installed a
> Electronics international cgr30p monitor system. It worked fine for
> several months and has now started randomly reporting impossible results
> for engine temperature, fuel flow rates considerably higher than pump can
> deliver, etc.
>
> The wiring harness inside and the monitor have been replaced or verified
> by the manufacturer. He has a breakout box that allows shutting off
> individual data lines. No provision to monitor lines though.
>
>  would like to monitor the DC bus and see if there is an AC component
> being injected somehow. I would like recommendations for a USB oscilloscope
> that would be suitable. I also have a RF explorer 50khz to 960MHZ that I
> could use to monitor radiated noise.
>
> Can anyone help me with this?
>
> Mike
> AI4NS
>