No DC on the input to the counter.? Not sure about input cap, I replaced the AS179-92 LF? and didn't go any further. It worked after switch replacement.
On Wed, Feb 19, 2025 at 2:14 PM, Terry Perdue via groups.io
<K8tp@...> wrote:
Does the counter show any DC on its input, and is the tinySA’s input cap now shorted?
>? I had mine at what I think is maximum output (-18 dbm) for 45 minutes feeding my scope without a probe and then I tee'd in a 50 ohm input frequency counter and that killed the AS179-92LF input switch. It took a few seconds, I was watching the scope and the signal decayed within 5 seconds of hooking up the counter.
> Bob
>
