Update: The New 406 MHz ELTs

Now that several manufacturers have come to market with new 406 MHz ELTs, and some have become available that transmit on both the old (121.500 and 243.00 MHz) and new (406 MHz) frequencies, you may be wondering if you should replace your aging ELT or just stick with what you have. AVweb's avionics guru explains that the new units have some compelling advantages, but suggests it might be a bit early to switch and offers some knowledgeable guidance.

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