ACR G406-4 handleiding

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Handleiding

ARTEX PRODUCTS / ACR ELECTRONICS, INC 
DESCRIPTION, OPERATION, INSTALLATION AND MAINTENANCE MANUAL 
G406-4 (453-5012) 
570-5012 Rev. P  Company Confidential  25-62-21  Page  31  of  70 
SUBTASK 25-62-21-750-005 
J.  121.5/243.0 MHz Power Output Measurement – Item 5c 
1)  Connect the measuring device, referring to SUBTASK 25-62-21-750-002 on page 30. 
2)  Activate the ELT, if necessary, by placing the control switch in the “ON” position. 
3)  Wait three minutes. 
4)  Read the displayed amplitude for 121.5 MHz. The amplitude must be within the minimum specified 
for 121.5 MHz in Table 3 on page 23 at the terminal output. 
5)  Change to 243.0 MHz and repeat the procedure for 243.0 MHz. 
SUBTASK 25-62-21-750-006 
K.  406 MHz Frequency Measurement – Item 5d 
CAUTION:  POWER OUTPUT IS APPROXIMATELY 37 DB (5 WATTS). BE SURE ADEQUATE 
ATTENUATION IS INSERTED IN-LINE BETWEEN THE ELT ANTENNA OUTPUT AND 
THE MEASURING DEVICE TO PROTECT THE INPUT CIRCUITS OF THE MEASURING 
DEVICE. 
1)  Connect the measuring device, referring to SUBTASK 25-62-21-750-002 on page 30. 
2)  Activate the ELT, if necessary, by placing the control switch in the “ON” position. 
3)  Wait three minutes. 
4)  Measure the frequency. Measure the frequency after the three-minute waiting period. The frequency 
must be within the tolerance specified in Table 3 on page 23. 
NOTE:  The exact 406 MHz frequency used is printed on the ELT product label. 
SUBTASK 25-62-21-750-007 
L.  406 MHz Power Output Measurement – Item 5e 
CAUTION:  POWER OUTPUT IS APPROXIMATELY 37 DB (5 WATTS). BE SURE ADEQUATE 
ATTENUATION IS INSERTED IN-LINE BETWEEN THE ELT ANTENNA OUTPUT AND 
THE MEASURING DEVICE TO PROTECT THE INPUT CIRCUITS OF THE MEASURING 
DEVICE. 
1)  Connect the measuring device, referring to SUBTASK 25-62-21-750-002 on page 30. 
2)  Activate the ELT, if necessary, by placing the control switch in the “ON” position. 
3)  Wait three minutes. 
4)  Read the displayed amplitude of the 406 MHz burst that follows the three-minute wait period. The 
amplitude must be within the minimum specified for 406 MHz in Table 3 on page 23 at the output 
terminal. 
5)  Deactivate the ELT by placing the control switch in the “OFF” position. 
   

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