7 lines (6 with data), 248 Bytes

f185a 0 128 0 11:30:00 30/12/1987
# Start time=11:30
# First beat=11:30:00.156
# <age-range>: 55-59, <sex>: Male, <medication>: None
# <RR-low-limit(sec)>: 0.515,  <RR-high-limit(sec)>: 1.125
# Note: reel-to-reel recording, not flutter-compensated