ZamF16 Posted October 19, 2015 Report Posted October 19, 2015 (edited) I am looking to replace my old AmeriKing AK-450 ELT with an AK-451-6 (121.5, 243.0, 406.0 plus GPS location). However, I notice the ELT antenna is under the dorsal spine of the M20M and will be hard to replace. Has anyone done this upgrade? If so, were you able to reuse the existing ELT antenna under the dorsal spine, or did you have to replace it? I know there are other ELT options, but I am trying to gain the additional frequencies and GPS location without having to change the ELT tray, antenna, and wiring (except as needed for the GPS signal). Looking for insight. Dave Edited October 19, 2015 by ZamF16 Quote
FoxMike Posted October 19, 2015 Report Posted October 19, 2015 ZamF16, Your AK450 antenna will not work with the AK451. The only antenna option is an externally mounted one (looks 20kts slower). AKC makes a 406 ELT that has a whip antenna can be placed indoors (under dorsal fin). Mooney can supply drawing. Lots of work no matter how you do it. Path of least resistance is a PLB with features you want in the cockpit or around your neck when flying over water. Quote
ZamF16 Posted October 19, 2015 Author Report Posted October 19, 2015 FM, That's what I was afraid I would find out. I figured having it be plug and play would be too easy to be possible. Dave Quote
Guest Posted October 25, 2015 Report Posted October 25, 2015 I am looking to replace my old AmeriKing AK-450 ELT with an AK-451-6 (121.5, 243.0, 406.0 plus GPS location). However, I notice the ELT antenna is under the dorsal spine of the M20M and will be hard to replace. Has anyone done this upgrade? If so, were you able to reuse the existing ELT antenna under the dorsal spine, or did you have to replace it? I know there are other ELT options, but I am trying to gain the additional frequencies and GPS location without having to change the ELT tray, antenna, and wiring (except as needed for the GPS signal). Looking for insight. Dave Look at Mooney SB M20-116, it covers the 406 ELT upgrade. Generally the dorsal fairing has to be removed in order to change the antenna. I've done several, it's not hard to do you just have to be care to not damage the fairing and at the end you'll have to touch up rivets. Clarence Quote
ZamF16 Posted November 20, 2015 Author Report Posted November 20, 2015 Thanks, Clarence. I'll take a look at Mooney SB M20-116. Quote
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