What quotation system does BTSE use for the futures market?

The quotation system used for the futures market is USDT. This means that prices and values are quoted and calculated using USDT as the reference currency.

If I choose to settle in USDT, which currency will I receive the funding fee in?

If you decide to settle your trades in USDT, you will also receive your funding fees in USDT. This means that the fees associated with holding positions or contracts will be paid to you in USDT, ensuring consistency with the chosen settlement currency.