how do I know if I need 56KHz IR Receiver Add-On Option

Hi all,
I am about to buy this USB-UIRT blaster so Hi all,
I am about to buy this USB-UIRT blaster so I can control my satellite receiver from my BeyondTV machine. I have Pansat 2700a with plans to upgrade to Pansat 3500s. I have no idea if I should place an order just for a regular blaster or with 56KHz option. Any suggestions?
I am about to buy this USB-UIRT blaster so Hi all,
I am about to buy this USB-UIRT blaster so I can control my satellite receiver from my BeyondTV machine. I have Pansat 2700a with plans to upgrade to Pansat 3500s. I have no idea if I should place an order just for a regular blaster or with 56KHz option. Any suggestions?