7 lines (6 with data), 252 Bytes

f054a 0 128 0 11:15:00 28/12/1988
# Start time=11:15
# First beat=11:18:41.359
# <age-range>: 55-59, <sex>: Male, <medication>: None
# <RR-low-limit(sec)>: 0.585,  <RR-high-limit(sec)>: 1.054
# Note: recording with a timing signal, flutter-compensated