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VX-8DR Aviation band modification: any ides?


Hello all,


I have recently purchased a VX-8DR to take with me on my travels overseas. I will be doing the modification to allow Tx on restricted bands as I never know what channel I may need to reach others on in case of emergency in the bush.


My current major interest however is in Tx capabilities on Aviation band. I am a pilot and when I am flying I want to use my VX-8DR as an emergency back up to my cockpit radios. Or if I do go down and I have aircraft looking for me, I can use it to contact help (ie. 121.5).


Does anyone know of a method, system, or way to modify the VX-8DR to allow transmission on 118-137Mhz? It's not illegal to Transmit on that band so long as you have a pilots license.


Thanks for any help or suggestions