7 lines (6 with data), 251 Bytes

f199a 0 128 0 9:39:00 01/03/1988
# Start time=09:39
# First beat=09:43:18.539
# <age-range>: 50-54, <sex>: Male, <medication>: None
# <RR-low-limit(sec)>: 0.679,  <RR-high-limit(sec)>: 1.531
# Note: recording with a timing signal, flutter-compensated