Hello, I've been reading about the mod's available from INRAD, to reduce excessive keyclicks and the 70 MHZ IF amp to improve signal to noise. My question is how does installing these 3rd party mod's affect the warranty from Yaesu? Has any spoken to Yaesu tech to find out. I wrote to them a week ago but received no reply. Maybe they deep-sixed my email tired of hearing about it. Thanks, Randy WX5L