Cessna 172SPHUSR05 Pilot Operating Handbook page 301

CESSNA
MODEL 1 72S
MARKER BEACON RECEIVER OPERATION:
1 . TEST Position -- HOLD toggle down momentarily to verify all
l ights are operational .
2. S ENS Selections -- Select HI sensitivity for airway flying or LO
for I LS/LOC approaches.
There is no change to the airplane performance when this
avionic equipment is i nstalled .
externally mounted antenna or related external antennas, may result
i n a minor red uc�ion in cruise performance.
July 8/98
SECTIO N 9 - SUPPLEMENTS
S UPPLEMENT 3 -
SECTION
5
PERFORMANCE
However, the installation of an
APPROVED
FAA
S3-9/(S3- 1 0 blank)