CG-121 Monitor Receiver
Crewguard CG-121 Mk.II is a high sensitivity alarm receiver, operating on the homing frequency of 121.5MHz, and triggered by the swept tone modulation characteristic of distress beacons.
Product Specification:
- Dimensions 165x95x65mm (excluding antenna & connectors)
- Weight 500gms
- Temperature range -20°C + 60°C
- Waterproofing IP65
- Sensitivity 0.5 mV at antenna input
- Frequencies 121.5 MHz, 121.65 MHz (Test 1), Test 2 (option)
- Criteria of ELT/PLB recognition Audible AM-modulated howling, downward
LF-range within 300Hz…1600Hz
LF-range 700 Hz minimum
Time of repetition: 250ms.500ms• DELTA lf/25MS:
-10Hz…-250Hz - Audio exit max. 8Vss (speaker > 8 Ohm)
- Relay contact Floating, carrying capacity max. 0.5 A/10W
- Current Drain Standby = 80mA /
If alarm + ext. speaker (8 Ohm) = 400mA - Operating Voltage 12V DC (+ - 20%)
