7 lines (6 with data), 249 Bytes

f152a 0 128 0 7:45:00 02/03/1989
# Start time=07:45
# First beat=08:12:06.664
# <age-range>: 70-74, <sex>: Female, <medication>: None
# <RR-low-limit(sec)>: 0.601,  <RR-high-limit(sec)>: 1.093
# Note: reel-to-reel recording, not flutter-compensated