7 lines (6 with data), 252 Bytes

f136a 0 128 0 9:05:00 25/08/1988
# Start time=09:05
# First beat=09:08:20.945
# <age-range>: 50-54, <sex>: Female, <medication>: None
# <RR-low-limit(sec)>: 0.476,  <RR-high-limit(sec)>: 0.88
# Note: recording with a timing signal, flutter-compensated