7 lines (6 with data), 247 Bytes

e232a 0 128 0 8:00:00 14/07/1987
# Start time=08:00
# First beat=08:05:56.867
# <age-range>: 45-49, <sex>: Male, <medication>: None
# <RR-low-limit(sec)>: 0.609,  <RR-high-limit(sec)>: 1.617
# Note: reel-to-reel recording, not flutter-compensated