Does anyone know what is actually wrong with the SL30/40? I know it's a mandatory SB, and they list some vague "emission" problem. Does it interfere with ground based stations identifying the plane? Does it block other signals? We have used these for years without a problem so it seems strange that there is suddenly a mandatory SB.
Your post really had me laughing. Black hole is a great description. I may have set the record by losing an entire Zaon MRX down there on the way from AZ to CA. I could hear it beeping but could not find the unit. At least the beeps were set to maximum range...