7 lines (6 with data), 252 Bytes

e174a 0 128 0 14:00:00 31/12/1988
# Start time=14:00
# First beat=14:02:19.976
# <age-range>: 65-69, <sex>: Male, <medication>: None
# <RR-low-limit(sec)>: 0.578,  <RR-high-limit(sec)>: 1.375
# Note: recording with a timing signal, flutter-compensated