John R. Copeland wrote:
FWIW, my Apollo CNX80 and its companion SL30 NavCom
both have internal storage for their most-recent VOR-check data.
I no longer need to fill out the pencil-and-paper records I used to keep
in my supplemental flight manual.


One of the elements required by the FARs is the signature of the person
who performed the check. How do you satisfy this requirement?