RX Large signal +9dbm @127Mhz, off-channel blockers >+15dbm
RX audio
unwanted signals
including
distortion products
Less than -50db referred to 30% modulated carrier typical up to large
signal limit.
Adjacent channel
suppression
>80db typical
LO leakage into
antenna
connector
<-100dbm
RX bandwidths 21Khz @ 25Khz spacing, 7.6 Khz @ 8.33Khz spacing (offset carrier
possible on either 25Khz or 8.33Khz according to ICAO
recommendations)
RX Squelch Manual level with automatic adjustment within fixed range of manual
setting. Adjustment range: Off + -100dbm to -70dbm in 32 steps.
Audio RX
recording time
Approximately 1 minute of combined active RX (multiple RX message
storage and playback). Audio compression 16 bit ADPCM @ 16Khz.
Digital audio I/Q sampling: 24 bits @ 32Khz, Audio: 24Bits @ 16Khz
Weights 300 grams, complete unit.
120 grams, functional PCB with shielding plate excluding housing (as
OEM module for integration into third party systems)
Dimensions Mounted height 31mm
Width 88mm
Depth (including flanges) 167mm
Depth (excluding flanges) 142mm
Audio input specifications
Microphone inputs Gain range -12db
to +35.25db
At -12db, input voltage of 1.5Vpp clips
At +35.25db input voltage of 20mVpp clips
Typical gain setting for aviation headset: +12db
Input impedance 240 ohms A/C. 8V DC microphone
bias via 470 ohms.
Auxiliary input Gain range -15db
to +6db
Maximum input level 2Vpp
Typical level required for normal volume at +6db is
100mVpp.
Input impedance 47KOhm.
Audio output specifications
Output impedance 8 ohms. Suitable for connection of high impedance headphones.
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