2BSIQ

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Two Bands Synchronized Interleaved QSOs

2BSIQ (Two Bands Synchronized Interleaved QSOs) is a complex contest operating mode that in a protocoled synchronized way enables interleaved two radio running on two bands to dramatically increase QSO rates.

ARRL SSB 2019 You can listen to YV1KK operating in 2BSIQ mode (Two Bands Synchronized Interleaved QSOs) Make sure to put your headphones in order to understand from which radio (Radio1 or Radio2) stations are coming from, The method is the 2BSIQ technique as introduced by Jose CT1BOH 

 Importan! Make sure to put your headphones

Jose Nunes, CT1BOH, explains the concept of operating two bands, using synchronized, interleaved QSO's