Kannad AF INTEGRA, Руководство по эксплуатации

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OPERATION MANUAL
AF INTEGRA / AF-H INTEGRA ELT
PAGE: 104
JUN 20/2013
each 406 MHz burst). If GPS lock does not occur within 5 minutes, the
121.5 MHz will be activated.
The red visual indicator on the ELT (and on an optional remote control
panel when connected) flashes and the buzzer operates.
• Red visual indicator:
- 1 short flash during ELT transmission on 121.5 MHz (every 0.7
seconds);
- 1 long flash during ELT transmission on 406 MHz (every 50
seconds).
• Buzzer:
- 1.5 Hz pulse signal (recurrence 0.7 s) during ELT transmission on
121.5 MHz [except if the ELT has switched to internal antenna:
Refer to D. VSWR Switch function (External / Integral antenna) ].
In case of accidental activation, the ELT can be reset either by switching
it to "OFF" or by switching to "RESET" on an optional Remote Control
Panel when connected.
The number of 406 MHz bursts transmitted is recorded. This information
is available when the ELT is connected to a programming and test
equipment (PR600).
D. VSWR Switch function (External / Integral antenna)
During the 406 MHz burst, the Voltage Standing Wave Ratio (VSWR) is
measured. After 5 bursts with wrong VSWR measurements, the ELT switches
from the external to the internal antenna in order to optimize transmitted signal.
In ON mode, after 36 bursts, the ELT decides to re-switch or not according to
the result of 2 new VSWR measurements.
NOTE: when shifting from the external to the integral antenna the pulse signal
of the buzzer shifts from one beep every 0.7 second to 2 beeps every 0.7
second.
Note: The integral antenna has not been tested and approved by Cospas-
Sarsat.
E. GPS Strategy
(1)Basic Installation or portable use (without NAV Interface equipment)
To avoid consumption, the internal GPS receiver is not power supplied in
ARM mode. After a crash (automatic activation) or manual activation, the
internal GPS will try to acquire a position in continuous mode during one hour
and by different sequences up to 24 hours of 406 MHz transmission. If the
internal GPS receiver acquires a valid position, then the message will contain