7 lines (6 with data), 254 Bytes

f150a 0 128 0 10:00:00 07/10/1988
# Start time=10:00
# First beat=10:07:31.562
# <age-range>: 60-64, <sex>: Female, <medication>: None
# <RR-low-limit(sec)>: 0.695,  <RR-high-limit(sec)>: 1.351
# Note: recording with a timing signal, flutter-compensated