RX: G8JNJ SDR receiver in the South West UK.
CB radio channel 16
frequency 27155 kHz FM 27,155 FM 27.155MHz FM mode.
Spanish language heard, some indicators that there's a simplex repeater or similar setup on frequency, as signals will "stack" on top of each other. Maybe one of these stations doesn't realize his transmissions are being recorded and re-transmitted by a "parrot" on frequency.