Icom IC290E mods Packet audio
If, when using the Icom 290E on packet, it seems to hear lots of traffic but decodes very little, there is a de-emphasis problem. This is a common fault with many radios having audio tailored to suit the Oriental voice, whereby higher frequencies are greatly attenuated. The solution is extremely simple, remove C159 which may be found on the main unit in front of L19, which is in front of IC12. 
