7 lines (6 with data), 253 Bytes

f105b 0 128 0 12:15:00 25/01/1988
# Start time=12:15
# First beat=12:28:34.500
# <age-range>: 65-69, <sex>: Male, <medication>: Flecainide
# <RR-low-limit(sec)>: 0.82,  <RR-high-limit(sec)>: 1.609
# Note: reel-to-reel recording, not flutter-compensated