7 lines (6 with data), 248 Bytes

f192a 0 128 0 10:55:00 17/08/1988
# Start time=10:55
# First beat=10:58:46.398
# <age-range>: 70-74, <sex>: Male, <medication>: None
# <RR-low-limit(sec)>: 0.476,  <RR-high-limit(sec)>: 1.101
# Note: reel-to-reel recording, not flutter-compensated