7 lines (6 with data), 252 Bytes

f135a 0 128 0 12:45:00 06/05/1988
# Start time=12:45
# First beat=12:52:09.781
# <age-range>: 60-64, <sex>: Male, <medication>: None
# <RR-low-limit(sec)>: 0.515,  <RR-high-limit(sec)>: 0.835
# Note: recording with a timing signal, flutter-compensated