7 lines (6 with data), 247 Bytes

e184a 0 128 0 11:35:00 29/08/1987
# Start time=11:35
# First beat=12:42:12.703
# <age-range>: 60-64, <sex>: Male, <medication>: None
# <RR-low-limit(sec)>: 0.554,  <RR-high-limit(sec)>: 1.21
# Note: reel-to-reel recording, not flutter-compensated