User Manual SDR-OMNI Avionics Test Set
Page 96 6 June 2023 Revision B
Table 5-13. SELCAL Screen Fields
Four letter code to be transmitted. Edit this field by touching it and
entering any valid SELCAL code. Invalid codes will not be permitted.
RF transmission frequency. SELCAL systems are typically connected to
HF or VHF radios on long haul aircraft
RF transmission power. When testing over-the-air, enter the strongest
signal possible = 4 dBm.
Default AM modulation = 50%. No normally changed by operator
Pressing this sends a one-time SELCAL transmission
Pressing this sends SELCAL bursts every 30 seconds. This continues
until pressed again to stop.
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