Pointer Avionics skyhunter 406 - Check for Proper Sweep Tone; Check the 406 Coded Message; International; Measuring the Current Draw

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8.2.6 Check for proper sweep tone
August 8 ,2013
Rev25
Turn the EL T "ON" and listen on a VHF receiver tuned to 121.SM Hz for approx. 3 sweeps then
switch the ELT back to the "ARM" or "ARM" position, continue monitoring 121.SMHz to be sure
the sweep stops after the test has been completed.
8.2.7 Check the 406 Coded Message
Attach a decoding device such as the WS Tech 406 ELT Beacon Tester and follow the tester's
instruction set. Confirm the resulting Hex ID from the tester is the same
.as the one indicated on
the label of the SkyHunter406
™ ELT.
8.2;8 Measuring the current draw
The antenna connection must be terminated with a 50 ohm load for current measurements in
the "ARM" mode, and "ON" mode without 406 MHz Burst to be accurate, using the appropriate
bench equipment. Pointer Avionics Ltd does NOT recommend measuring the 406 Mhz burst
current which has limits of approximately 5 Amps.
ARM current limits: :::SµA
ON (without 406 MHz Burst) limits: 500-700 mA immediately after activation and within one
minute 180-225 mA
ON (with 406 MHz Burst) limits: 5 A
8.2.9 Testing the G-Switch Function
A Jumper is needed to perform this test, improper installation of this jumper has the potential to
permanently damage the EL T. ONLY experienced technicians should perform this work. The EL T
cannot be G switch activated without this jumper.
Attach an HD DB 15 connector that has a jumper shorting pins 4 and 5 to complete the g-switch
circuit. Verify that the ELT switch is in the
ARM position. Grasp the ELT firmly, then vigorously
thrust in the same direction as the direction of flight arrow to activate the g-switch circuit. The
force required is >2.3G's to activate the ELT. Allow transmission to be long enough to verify
activation and then turn ELT off by placing master switch into OFF position.
8.3 USA
Each emergency locator transmitter required by paragraph (a) of FAR 91.207 must be inspected
within 12 calendar months after the last inspection for: Proper installation; Battery corrosion;
Operation of the controls and crash sensor; and the presence of a sufficient signal radiated from
its antenna.
8.4 INTERNATIONAL
Check with your nation's regulations to ensure compliance with your government.
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