Specifications

USER’S HANDBOOK
- Complete message decoding (Ref. Fig. 31)
 Display of raw dat
a.
 Check of the message structure:
.. preamble,
.. synchronization,
.. identification,
.. error correcting code.
 Message decoding and display.
 Display of the optional long message (raw data).
- Check of the PM modulation index (Phi1, Phi2)
 Phi1 = positive phase excursion (+ 1.1 rd).
 Phi2 = negative phase excursion (- 1.1 rd).
 ELT specification : ± 1.1 rd ± 0.1 rd.
c
121.5 MHz channel
- Carrier frequency measurement (DFo)
 ELT specification : 121.5 MHz ± 6.075 kHz.
- Amplitude Modulation (AM) check
 ELT specification :
.. AM frequency sweep direction : upward or downward.
.. AM sweep frequency : between 2 Hz and 4 Hz (F
sweep
),
.. AM minimum frequency : 300 Hz (F
min
),
.. AM maximum frequency : 1600 Hz (F
max
),
.. AM minimum range : 700 Hz (DF),
- Power measurement (P
vhf
)
 ELT specification : +19 dBm +24 dBm.
 The coaxial input is protected up to +25 dBm in permanent mode.
Page 65
Mar
. 08/12