Question about Cobra Li 6000-2 WX VP GMRS/FRS Two-Way Radio

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Cobra LI7200 I just received a pair of Cobra 2 way Model LI7200 and I cannot get them to work with each other. I can pick up other people sometimes but I cannot communicate between the two radios. We are on the same channel and the volume is turned up. The call and the talk to not work.

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Dear sir, Pls see if u have same privacy code , pls turn of all privacy codes & sub codes keep every code "00" & keep same channel in both the radios , try now
Regards
raj

Posted on Apr 12, 2009

  • waqar raj
    waqar raj Apr 12, 2009

    Dear sir, Pls see if u have same privacy code , pls turn of all privacy codes & sub codes keep every code "00" & keep same channel in both the radios , try now

    Regards

    raj

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SOURCE: Cobra LI7200

Please don't touch any internal adjustments. It is like a 10 digit combination lock that is set to open. If you start changing the numbers, you will never get it open.
I think the problem is with your tone coded squelch (CTCSS). Your radio channel is like a telephone party line. If your CTCSS is not on, everytime you turn your radio on you will hear anyone on that channel that is close enough to hear.
If you are trying to use these radios for serious communications, that will drive you nuts to hear everybody else talking but not about what you need to hear. To try to mitigate this problem, CTCSS was created. There are 38 different codes. If you for example set your unit to operate on code 11 and your other unit is set to operate on code 12, you could not hear each other.
Now let's add a third unit set to not use CTCSS at all. Neither one of you will be able to hear this third unit but he can hear both of you. Now you set the second unit to code 11 like the first unit. Now you will be able to hear each other. The third unit will still be able to hear both of you but since he is not transmitting code 11, you still can't hear him.
If you are hearing some traffic, it is because they have their CTCSS set to the same code that you are set to. Look in you operators manual for CTCSS Privacy Codes. Set your radios accordingly and I think you will be in business. Let me know if this doesn't take care of you problem.

Posted on May 29, 2009

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Posted on Jan 02, 2017

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Please don't touch any internal adjustments. It is like a 10 digit combination lock that is set to open. If you start changing the numbers, you will never get it open.
I think the problem is with your tone coded squelch (CTCSS). Your radio channel is like a telephone party line. If your CTCSS is not on, everytime you turn your radio on you will hear anyone on that channel that is close enough to hear.
If you are trying to use these radios for serious communications, that will drive you nuts to hear everybody else talking but not about what you need to hear. To try to mitigate this problem, CTCSS was created. There are 38 different codes. If you for example set your unit to operate on code 11 and your other unit is set to operate on code 12, you could not hear each other.
Now let's add a third unit set to not use CTCSS at all. Neither one of you will be able to hear this third unit but he can hear both of you. Now you set the second unit to code 11 like the first unit. Now you will be able to hear each other. The third unit will still be able to hear both of you but since he is not transmitting code 11, you still can't hear him.
If you are hearing some traffic, it is because they have their CTCSS set to the same code that you are set to. Look in you operators manual for CTCSS Privacy Codes. Set your radios accordingly and I think you will be in business. Let me know if this doesn't take care of you problem.

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