Can anyone who actually owns the GD-77 confirm what encryption options come with the included firmware? I do understand that whatever encryption it has, if any, will be non-standard and not compatible between different radio brands (like Motorola, TYT, etc..). I am just looking to see how many encryption keys can be entered and possibly the range available. Is it just the numbers 0 to 255 (basic encryption) or are they keys hexadecimal (0-9 and A-F) and have longer lengths like 12+. Thank you very much.