ARTEX PRODUCTS / ACR ELECTRONICS, INC
DESCRIPTION, OPERATION, INSTALLATION AND MAINTENANCE MANUAL
ME406 (453-6603), ME406HM (453-6604)
Page 30 of 72
Mar 19/15
25-62-30
Figure 8 Performance Testing Equipment Setup
SUBTASK 25-62-30-750-003
H.
121.5 MHz Frequency Measurement – Item 5a
1)
Connect the measuring device, referring to SUBTASK 25-62-30-750-002 on page 29.
2)
Activate the ELT by placing the control switch in the “ON” position.
3)
Wait three minutes.
4)
Perform SUBTASK 25-62-30-750-004 during the three-minute waiting period.
5)
Measure the frequency after the three-minute waiting period. The frequency must be within the
tolerance specified in Table 3 on page 24.
SUBTASK 25-62-30-750-004
I.
Audio Modulation Check – Item 5b
1)
Perform this check in conjunction with SUBTASK 25-62-30-750-003.
2)
Monitor 121.5 MHz on an AM receiver.
3)
Listen for the aural sweep tone on the receiver. The audio should “sound” like an ELT.
SUBTASK 25-62-30-750-005
J.
121.5 MHz Power Output Measurement – Item 5c
1)
Connect the measuring device, referring to SUBTASK 25-62-30-750-002 on page 29.
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 24 at the terminal output.
