Just in fairness... what is an acceptable barrier to entry for decoding a digital signal? There are several closed standards that require the purchase of equipment in order to decode. They may not be encrypted, but they are obscure enough that someone must spend money to decode them. Winlink/Pactor is one of them, but D-Star/Fusion/DMR is another. The latter seems to be perfectly fine even though one must purchase a specialized radio/modem in order to decode them. I'm not sticking up for Pactor, or for the other proprietary digital modes. I'm just trying to understand what the difference is from that perspective.