7 lines (6 with data), 248 Bytes

e283a 0 128 0 11:16:00 16/12/1988
# Start time=11:16
# First beat=11:36:07.554
# <age-range>: 70-74, <sex>: Male, <medication>: None
# <RR-low-limit(sec)>: 0.742,  <RR-high-limit(sec)>: 1.289
# Note: reel-to-reel recording, not flutter-compensated