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(tuning dial on any setting) is held about 6 inches from the activated ELT Antenna, the ELT Aural tone will
be heard (see note below). The ELT must be reset by pressing either the RESET push button located on the
ELT Main unit or the ELT Remote Unit.
Note: This is not a measured check, but it does provide confidence that the Antenna is radiating with sufficient
power to aid search and rescue. The Aircraft’s VHF Receiver, tuned to 121.5 MHz, may also be used. This
Receiver however is more sensitive and could pick up a weak signal even if the radiating ELT’s Antenna is
disconnected. Thus, it does not check the integrity of the ELT System or provide the same level of confidence as
does an AM Radio.
5
TRANSMITTER FUNTIONAL TEST FOR ELT-(S) ONLY
The ELT-(S) should be tested every month.
5.1 Main Switch ON / OFF / SELF TEST Operation:
The ELT-(S) has an "OFF" position. This allows the beacon to be handled or shipped without 'nuisance' activation.
Care should be taken when transporting or shipping the ELT-(S) not to move the switch or to allow packing
material to become lodged such as to toggle the switch.
Main Switch, alternate / alternate / momentary positions:
•
"ON:" Alternate position. ELT-(S) transmits immediately. Green ON light on the main unit flashes, 1
second ON, 4 seconds OFF. The ELT swept Tone must be heard on the 121.5 MHz VHF Radio.
•
"OFF:" Alternate position. The ELT-(S) is turned off.
•
"SELF TEST:" Momentary position. ELT-(S) self-test is confirmed after the switch is held for 25 seconds.
If the self-test is passed, the Green ON light must be extinguished. ELT swept Tone must be silent on the 121.5 MHz
VHF Radio.
The ELT-(S) system is fully self-tested.
5.2 Transmitter Self-Test:
Turn and hold the main switch, from the "OFF" position to the "SELF TEST"
position. The Green ON light shall illuminate for 4 seconds then extinguish. This is to allow coding programming
during next 20 seconds window and self-test for 1 second thereafter.
The ELT-(S) may be coding programming during the aforementioned 20 seconds window period. If no
programming happened the ELT will then enter the Self Test Mode for 1 second thereafter.
Self-test results after (4+20+1) =25 seconds, is:
If the self-test is passed, the Green ON LIGHT is steadily extinguished. ELT swept
Tone must be silent on the 121.5 MHz VHF Radio.
If the self-test is failed, the Green ON LIGHT flashes as shown below:
1 flash: Internal Data stored in Memory at fault.
2 flashes: Distress ID stored in Memory at fault.
3 flashes: Battery voltage is low < Useful Life Battery Voltage setting.
4 flashes: Vcc supplies for F3, F2, or F1 at fault.
5 flashes: F3 RF power level < 33 dBm @ 406.028 MHz
7 flashes: F1/F2 VHF RF power level < 17 dBm @ 121.5/243 MHz.
9 flashes: PLL locked in F3 or F1 or F2 at fault.
Continuous flash: no F3/F2/F1 RF output power, ELT shuts down completely.
Note:
The self-test mode that transmits a 406 MHz test code pulse monitors certain system functions before returning to
the SELF TEST mode. The 406 MHz test pulse is ignored by any satellite that receives the signal, but the ELT-(S)
uses this output to check output power and correct frequency.
•
Self-test is 520 ms long message burst on the 406 MHz signal. Synchronization pattern is 011 010 000.
•
Self-test is then 121/243 MHz (VHF) Continuous Wave during 1s.
•
During Self Test, the ELT swept Tone is silent on the 121.5 MHz VHF Radio.
The ELT-(S) may accept GPS position input by connecting the external GPS to the
Remote connector
Appendix F Page 11
Summary of Contents for 912 Dragonfly
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Page 37: ...Page 36 Note for Hydraulic Brakes see Appendix B Drawing 7 ...
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Page 79: ...Page 78 Wiring1 jpg Drawing 28a ...
Page 80: ...Page 79 Wiring2 jpg Drawing 28b ...
Page 81: ...Page 80 elecLights jpg Drawing 28c ...
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Page 92: ...Page 91 Appendix B Brakes Manual for BX1320 BX1000 Appendix B Page 1 ...
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Page 104: ...Page 103 Figure 1a Description of Display Pages ...
Page 105: ...Page 104 Figure 1b Description of Display Pages ...
Page 138: ...Page 137 Appendix C EIS 4000 912 914 ...
Page 139: ...Page 138 Appendix C EIS 4000 912 914 ...
Page 140: ...Page 139 Appendix C EIS 4000 912 914 ...
Page 141: ...Page 140 Appendix C EIS 4000 912 914 End Appendix C ...
Page 155: ...Page 154 Appendix E2 Powerfin Prop Page 2 ...
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Page 164: ...Page 163 Appendix E2 Powerfin Prop Page 11 End of Appendix E2 ...
Page 187: ...Page 186 By Memphis Soaring FIGURE 3 Common Signals ...