7 lines (6 with data), 258 Bytes

f166b 0 128 0 14:00:00 04/01/1989
# Start time=14:00
# First beat=14:07:31.070
# <age-range>: 55-59, <sex>: Male, <medication>: Flecainide
# <RR-low-limit(sec)>: 0.507,  <RR-high-limit(sec)>: 1.234
# Note: recording with a timing signal, flutter-compensated