Thursday, 30 August 2012 10:17

New 406 MHz Ejection Seat Compatible PLB

The 500-30 is the latest member of the highly successful Techtest PLB range offering 406MHZ transmission and Guard frequency transmission combined with embedded GPS to500-30 provide positional accuracy of ≤100m.

With both manual and automatic activation capability the beacon offers maximum flexibility across a fleet of aircraft. Providing interface solutions for inclusion in PSPs within ejection seats such as ACES II/III and in combination with parachute activation mechanisms such as the BA22. Once activated upon ejection the PLB will transmit SAR frequency signals via remote antennas allowing rapid recovery.

Once on the ground aircrew can continue to transit using remote or integrated dual frequency antennas including GPS providing portable functionality and the ability to control beacon transmission according to circumstance. With 5 year battery life, 48 hours transmission on 121.5MHz and 24hours on 406MHz at −20°C the 500-30 meets COSPAS SARSAT, ED-62A, STANAG 7007 and MIL-STD 810F specifications.

 

Transmitter Signal
The PLB transmits modulated signals on 121.5MHz distress frequency with characteristics in accordance with STANAG 7007, plus 406MHz in accordance with COSPAS/SARSAT.
Modulation (121.5MHz)
Continuous Swept Tone of at least 700Hz within the Sweep Range.
Sweep Range 1.6KHz to 300Hz
Sweep Rate 2-3Hz
Amplitude Modulated with Rectangular Wave
Modulation Depth 80% minimum
Modulation (406MHz)
0.5 Secs 5W pulse every 50 secs.
Phase modulation of ±∏/3 rad (peak)
Digital modulation (see C/S G.005 Iss. 2 Rev 1, Section 3) to include:
• Bit Synchronisation • Frame Synchronisation
• Protected Field • Emergency-Code/National Use Field
• Long Message  
GPS Receiver (Embedded)
Hot Start (avg) <9 sec Sat. Signal Reacquisition Time 100ms
Warm Start (avg) <35 sec Number of Channels 12
Cold Start (avg) <39 sec Min Signal Level Tracked -172dBw
Receiver L1 C/A Code Power Consumption 82mW
Protocols NMEA  
Power Output
406MHz 24 hours min 5W (+37dBm ±2dBm) at -20˚C
121.5MHz 48 hours min >50mW (+17dBm) at -20˚C
Mechanical
Activation Lanyard
  Manual ARM/OFF SWITCH
  Automatic BA22 Interface / ACLS33 ASSY
Dimensions 125mm x 70mm x 33mm nominal
Weight <587g nominal
Colour NATO green
The unit is designed to survive for up to 20 years with the only maintenance being battery replacement every five years.
Compliance
The PLB is compliant with the following specifications:
Civil EUROCAE ED62A / RTCA DO-204A
  EUROCAE ED14F/RTCA DO-160F/
COSPAS / SARSAT
Military NATO - STANAG 7007 / MIL STD 810F
Part Number
500-30 121.5, 406 & GPS
Published in HR Smith Products
Monday, 04 October 2010 14:21

ELT / PLB

500-27-07

The 500 series of Personal Locator Beacons or Survival Emergency Locator Transmitters offers a wide range of options to suit any requirement. The 500 series of Personal Locator Beacons has been chosen by a wide customer base, including armed forces, commercial airlines, off-shore helicopter operators, life raft manufacturers and ejection seat manufacturers.

For all the 500 series Personal Locator Beacons, Techtest has obtained full certification to aircraft standards so these products should not be confused with inferior quality beacons intended for hobby use.

The 500-1 Personal Locator Beacon is a compact light-weight unit operating on 121.5 MHz and 243 MHz and has been favoured by customers requiring a small beacon for many years.

The 500-12 Personal Locator Beacon is designed to work with the COSPAS-SARSAT search and rescue satellite system and features 406 MHz as well as 121.5 MHz and 243 MHz distress signals. It also incorporates a speech function which allows survivors to have two way voice communication with a rescue craft. In addition to the normal aircraft approvals the 500-12 also has full Boeing and Airbus approvals making it the natural choice for commercial airline operators due to its compact size and low weight. The 500-27 shares all the functionality of the 500-12 but also incorporates embedded GPS to minimize location time in the event of an emergency.

The latest 500-27-07 PLB (above right) utilizes all the proven electronics of its predecessors but updates the casing design to give a modern stylish appearance without losing the rugged and durable qualities associated with Techtest SAR products.

The new 500-32 PLB (above left) offers similar features to the 500-27-07 but in a significantly smaller package (35% reduction in volume). This has been achieved by using state-of-the-art battery technology and optimised electronics.

After rigorous testing the 500-32 series of ELT(s) or PLB has recently been awarded a COSPAS SARSAT type approval (Certificate No. 223).

500-30, 406 MHz Ejection Seat Compatible PLB

The 500-30 is the latest member of the highly successful Techtest PLB range offering 406MHZ transmission and Guard frequency transmission combined with embedded GPS to500-30 provide positional accuracy of 100m.

With both manual and automatic activation capability the beacon offers maximum flexibility across a fleet of aircraft. Providing interface solutions for inclusion in PSPs within ejection seats such as ACES II/III and in combination with parachute activation mechanisms such as the BA22. Once activated upon ejection the PLB will transmit SAR frequency signals via remote antennas allowing rapid recovery.

Once on the ground aircrew can continue to transit using remote or integrated dual frequency antennas including GPS providing portable functionality and the ability to control beacon transmission according to circumstance. With 5 year battery life, 48 hours transmission on 121.5MHz and 24hours on 406MHz at -20 °C the 500-30 meets COSPAS SARSAT, ED-62A, STANAG 7007 and MIL-STD 810F specifications.

 

Brochure downloads

pdf500-12 Multi Function Personal Locator Beacon
pdf500-27 Multi Function Personal Locator Beacon + Embedded GPS
pdf500-27-07 Multi Function Personal Locator Beacon + Embedded GPS
pdf500-30 Multi Function Personal Locator Beacon
pdf500-32 406MHz Multi Function Personal Locator Beacon
pdf12-503-5 Programming Test Set

Published in HR Smith Products