Are both the 10.7 MHz AND the 21.4 MHz inputs available on the W41PC (MK-II) card at the same time?
No, the W41PC (MK-II) card employs only one IF input, i.e. either a 10.7 MHz input or a 21.4 MHz input. One has to decide when purchasing which input is needed. The 10.7 MHz input is standard. If you request the 21.4 MHz option you will be charged an additional modification fee. If, at a later stage you wish to change the IF input frequency, this can be done by returning the card to WAVECOM for modification. In such an event you would have to pay shipping costs and a modification fee.