7 lines (6 with data), 247 Bytes

f163a 0 128 0 9:30:00 05/05/1988
# Start time=09:30
# First beat=09:43:25.164
# <age-range>: 60-64, <sex>: Male, <medication>: None
# <RR-low-limit(sec)>: 0.687,  <RR-high-limit(sec)>: 1.187
# Note: reel-to-reel recording, not flutter-compensated