why is it locked, is it? why can't we see how far it can go. we have a record that the first ultra see @20GHz..
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When you enter the frequency MENU, it says in the lower left corner, choose between 0 and 17.922ghz. And if I enter a number greater than 17.922, it returns me to that number and does not accept a higher number when entering the frequency, so that is its limit.