7 lines (6 with data), 252 Bytes

e236a 0 128 0 10:09:00 15/12/1988
# Start time=10:09
# First beat=10:10:57.476
# <age-range>: 55-59, <sex>: Male, <medication>: None
# <RR-low-limit(sec)>: 0.687,  <RR-high-limit(sec)>: 1.335
# Note: recording with a timing signal, flutter-compensated