Automated recording of any audio transmission in the 70cm band over the day

[InspiringCode]

Hello again,

I would like to build a system that scans the whole UHF band (430-440MHz) and records any audio transmissions (AM/FM) that it finds. So for example if there are 3 transmission over the day, it should produce the following files:

• 2025-02-16_13-35-30_430.125_AM.wav
• 2025-02-16_13-35-35_439.500_FM.wav
• 2025-02-16_15-30-44_435.750_FM.wav

The idea is to monitor the whole 70cm band (the RSP1A has 10MHz bandwidth for example) and record any transmissions which could be listened to all at once at the next day for example. This could be useful to get an overview of the band activity without being on the radio constantly or for emergency situation where you want to gather as much information as possible.

Is this somehow possible with SigDigger? How could this be accomplished?

Once I have the records, I could write a software that displays all recordings in neat web interfacing as a kind of "waterfall" diagram (frequency horizontal, time of recording vertically) with live playback function. But I would need some software that could do the signal processing and recording for me.

I would be very grateful for your input here.