121.5MHz / 243.0MHz / 406.025 MHz

Radiated Power:

0.1W at 121.5 / 243.0MHz
5.0W at 406.025MHz

Frequency Stability:

2 x 10-9 per min

Transmission Duration:

24Hrs min, 5W PERP at -40˚C
48Hrs min, 0.1W PERP at -40˚C

Repetition Rate:

520ms (±1%) every 50 secs (±5%)

Activation:

Manual: the 503 Series of ELT’s can be manually operated via the cockpit mounted remote switching panel.
Automatic: the ELT can be reliably activated by the multi-axis GSwitch.

Dimensions:

255 x 105 x 45mm

Weight:

1.3kg

Battery Storage Life:

6 years

Approvals:

TSO C91a and C126
CAA WR01029
Cospas-Sarsat Approval No. 97

Compliance:

The 503 series of ELT’s are compliant with the following specifications:
Cospas-Sarsat specification C/ST.001
EUROCAE ED-62 / RTCA DO-204
EUROCAE ED-14C / RTCA DO-160C
CAP 208 Aircraft Radio Equipment Issue 2
January 1991 Volume 1, Part 1