Route4Me might be a bit more popular than xoscope. We know about 1 link to it since March 2021 and only 1 link to xoscope. We are tracking product recommendations and mentions on various public social media platforms and blogs. They can help you identify which product is more popular and what people think of it.
For 433, you can use the microphone jack. It often does some differential / bias removal, so in general it will decay, but I got okay results (you can see edges mostly). https://xoscope.sourceforge.net/. Source: over 1 year ago
Only thing I've found is route4me.com, which isn't free. It looks like Waze may have had it as an option, but no longer does. Source: about 3 years ago
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