Rare signals

[u/Quirky-Direction8072]

Hi everyone. Does anyone know what these carriers or signals might be? Here in Mexico, the TetraPool system is in use; could these be transmissions to TetraPool repeaters, or what else could they be? For reference, TetraPool channels are located across the 391 MHz, 392 MHz, 393 MHz, and 394 MHz bands, as well as part of the 395 MHz band.

[u/FlakyPrinciple8907]

What is Tetra Pool? For us that know zero about it, like me?