7 lines (6 with data), 247 Bytes

f131a 0 128 0 9:13:00 06/01/1988
# Start time=09:13
# First beat=09:18:42.039
# <age-range>: 55-59, <sex>: Male, <medication>: None
# <RR-low-limit(sec)>: 0.625,  <RR-high-limit(sec)>: 1.265
# Note: reel-to-reel recording, not flutter-compensated