7 lines (6 with data), 248 Bytes

f186a 0 128 0 13:07:00 12/03/1989
# Start time=13:07
# First beat=13:30:51.539
# <age-range>: 65-69, <sex>: Male, <medication>: None
# <RR-low-limit(sec)>: 0.492,  <RR-high-limit(sec)>: 0.945
# Note: reel-to-reel recording, not flutter-compensated