Frequency: 6815 kHz 6.815 MHz
Mode: USB
Language: Spanish (likely from Latin America, judging by accent)
Allocation: 6765-7000 kHz ITU fixed/mobile band (heavily used by pirate and bootleg operators)
Hearing an OM saying "helloooo" and "holaaaaa" along with "audio" and whistling into his mic...likely doing radio checks or tuning up
Nothing else heard after 1445 UTC