7 lines (6 with data), 248 Bytes

e084a 0 128 0 9:45:00 25/07/1988
# Start time=09:45
# First beat=10:05:59.164
# <age-range>: 55-59, <sex>: Female, <medication>: None
# <RR-low-limit(sec)>: 0.507,  <RR-high-limit(sec)>: 0.96
# Note: reel-to-reel recording, not flutter-compensated