7 lines (6 with data), 252 Bytes

f083a 0 128 0 11:22:00 13/03/1988
# Start time=11:22
# First beat=11:29:13.390
# <age-range>: 65-69, <sex>: Male, <medication>: None
# <RR-low-limit(sec)>: 0.554,  <RR-high-limit(sec)>: 0.984
# Note: recording with a timing signal, flutter-compensated