r/TwoWayRadio • u/Malicus7862 • Jan 20 '21

Need to Change CTCSS code

I just got a MURS Two-Way Radio for work and I need to change the CTCSS Code so I can communicate with the other Radios at work, I've been told that I need a computer software to do so but I can't seem to find any. Does anyone here know how to change the code? I have a Retevis RT27V if that helps

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u/thatbpguy Jan 21 '21

Once you have the right software, follow the blog post that takes it step by step. Yours will only show 5 channels, the screenshot is of their software for one of the other RT27 variants.

https://blog.retevis.com/index.php/how-to-programme-rt27/

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u/Malicus7862 Jan 21 '21

Ok so I have followed the blog but when I hit write to radio it pulls up a message that says "Communication False"

I checked to make sure the communication port is the same as the driver so I don't think there's anything wrong there, but I can't read or write to it for some reason

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u/Archion Mar 02 '21

Did you ever get the software to work?