Raytheon Ray 90 private freq programation

The Raytheon Ray 90 is a marine vhf radio , probably manufactured by JRC for Raytheon , has all the tipical features of shipboard marine radios , hailer and all that stuff , but has an cool feature ,the so called private frequencies , private frequencies are 10 channels that you can program between 154 to 164 mhz , those memories are accesed putting the radio in international channel mode , thats pressing the (I/U) , an then pressing the (P/W) key ,then one of the numbers of the keyboard , but supossing that the radio is new or hasnt been used in a long time , you must program it . How to do that , open the radio , and locate a small switch behind the front pannel , the swicht is above an EPROM , and is marked "PRIVATE" , with the radio powered on push the "PRIVATE" button , and without releasing it , press at the same time the (M) button , without releasing it , enter the desired frequency 155.000 , in this format , 55.0000 , then release the (M) button and press the (P/W) button , then press the desired number on the numeric pad , all this with the "PRIVATE" button pressed , release the "PRIVATE" button , and you should see the channel like this , FFF 01 on the screen . now you are done ! , all this info was found using the test and error methodology , it took me and hour to figure how to program the radio , based only on what keys sounded when i was holding the private button !

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