SCARAB - Self Contained Autotuning RAdioBeacon
Qualifications: Meets applicable requirements of ICAO.
Frequency Range: 190-1250kHz. Synhesized (field programmable), no parts needed.
Power Output: 10 to 100 watts.
Type of Emission: A0/A2, A3, A0/A2/A3.
Modulation: Keyed at 400 or 1020 Hz tone, Morse Code of four or more letters or numerals, and or voice modulation 0-95%.
Bandwidth: 800 or 2040 Hz depending ontone frequency. Up to 6000 Hz for voice.
Harmonic Distortion: Harmonics from 190kHz to 700kHz carrier frequency are less than -50dB. Harmonics from 700kHz to 1250 kHz carrier frequency are less than -40dB.
Input Power: 12VDC or optionally 115/230V ± 20%, single phase 50-60Hz or both with switch over to batteries. 375 watts maximum.
Metering: Output watts, antenna RF current, tuning, emitter current in final stage.
Working Conditions: Continuous unattended operation, -50º to +70ºC, 0-100% humidity.
Dimensions: 26"H, 19"W and 10"D.
Circuit Protection: Zener protection on final amplifier transistors, fuses for each fnal, fuses in low and high voltage DC lines, circuit breaker in DC line, low voltage cutout.
Automatic Shutdown: Transmitter shuts down with loss of tone or continuous tone, extreme signal distortion, or when power falls below a user preset value.
Self Contained Operation: The SCARAB operates autonomously with the optional battery pack. Operating time will be in excess of one hour at 100 watts, 2 hours at 50 watts and four hours at 25 watts on a single battery pack. The battery pack attaches to the bottom of the transmitter enclosure.