Crewguard CG-121 Mk.II
This is an ideal monitor receiver for use in any environment where 406/121.5MHz beacons are installed, tested or serviced and will give an instant audible warning of beacon activation.
It meets the requirement of section 3.3 of IMO MSC/Circ.1039 GUIDELINES FOR SHORE-BASED MAINTENANCE OF SATELLITE EPIRBs
Continuously monitors 121.5MHz
Safeguards against false alarms
New robust design
IP-65 waterproofing
User friendly control panel
Multiple mounting options trunnion, flush mount, surface mount
Highly robust power cable connector
Improved electronics and signal reception
Option for external antenna
Option for external alarm
Fully serviceable
Can be integrated into system for monitoring large or unmanned locations
Technical data
Dimensions: 165x95x65mm (excluding antenna & connectors)
Weight: 500gms
Temperature range: -20°C + 60°C
Waterproofiing: IP65
Sensitivity: 0.5 μ V 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
o LF-range within 300HZ
1600HZ
o LF-range 700 HZ minimum
o Time of repetition: 250ms..500ms* DELTA lf/25MS:
-10Hz
-250Hz
Audio exit: max. &Vss (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: 12-24V DC (+ - 20%)
TSR406 Terrestrial SAR Receiver
Monitoring system for ports, harbours, marinas, airfields, beacon service facilities
Local guard system for instant detection of false alerts
High sensitivity receiver range determined by antenna height
Logs all bursts received in AccessTM database
