7 lines (6 with data), 252 Bytes

f064a 0 128 0 10:20:00 24/10/1988
# Start time=10:20
# First beat=10:23:17.226
# <age-range>: 60-64, <sex>: Male, <medication>: None
# <RR-low-limit(sec)>: 0.765,  <RR-high-limit(sec)>: 1.414
# Note: recording with a timing signal, flutter-compensated