That only took about 20 years and several competing systems CTC-16 , Dynatrol...... ect, and theres still just plain old block control. As far I know , in Amatuer Radio , all the manufacturers use the same core audio codec , Its only the transport protocol thats different ?. Its not in their (Yaesu , Kenwood, Icom...) best interest to have a standard. With a standard the low cost producer will win out (chinese) .By having their own protocol they each effectively maintain a monopoly for that system. Even if the ARRL came up with a standard , its still not in the interest of non chinese manufacturers to adopt it , the ARRL would be wasting its time. The only way to force the issue is though the FCC with a federal standard. Its a a lot easier to get model manufactures to adopt a standard on electronics ,their not in that buisness so its no cost to them , they just want to know what to buy to stick in their product. For electronic manufactures adopting a standard is tantamout to telling them ...we're going to take your market share away and give it to the chinese. Its no longer a manufactured product , its a commodity (one is just as good as another) . Can you imagine if they had a standard for cellphones , all a certain width certain height , same button layout , you think Apple would sit still for that ? They dont even have a standard communication protocol , well they do , but theres more than one ! Even when they had a standard theres nothing stopping someone from comming out with another standard ! For cells they had about 3 or 4 at one time. In the end , it wont matter much DMR will probably win out over Dstar and Fusion ? . The chinese manufactures will be able to make it so cheap it will be like UV8r s every licensed op will have two dozen , and if they dont have a license to use it they'll have 3 dozen ,regardless of who says what. and it will become the defacto standard. And therein lyes the fundamental reason why the ARRL probably wouldn't do it even if they could.