[arm-allstar] COS equivalent for other radios

Larry larry at thunderbolt.net
Thu Mar 15 15:04:57 EST 2018


my fault ....  attachment didn't pass sent it direct

Larry - N7FM

On 03/15/2018 12:57 PM, "Larry via arm-allstar" wrote:
> Fred here is a picture (attached) of where to get cos on the FT2400
>
> Larry - N7FM
>
>
> On 03/15/2018 12:14 PM, "Fred Hillhouse via arm-allstar" wrote:
>> Greetings!
>>
>>
>> Thanks for the information David and Marshall!
>>
>>
>> It is an Yaesu FT-2400 (freebie from a friend) and I did manage to 
>> find a
>> little discussion. It is interesting the signal tapped into is called
>> SCAN_STOP. I'll have to look closer at that signal.
>>
>>
>> Thanks!
>>
>>
>> Best regards,
>>
>> Fred N7FMH
>>
>>
>> The COS signal, in its most basic form, is just a logic signal which
>>
>> indicates if the squelch is open of closed. For example:
>>
>>
>> COS == 1  ....The squelch is open.
>>
>> COS == 0  ....The squelch is closed.
>>
>>
>> In a more advanced form, COS will SOMETIMES also include PL or DCS
>>
>> signaling. For example:
>>
>>
>> COS == 1  ....The squelch is open AND proper PL/DCS is present.
>>
>> COS == 0  ....The squelch is closed OR proper PL/DCS is absent.
>>
>>
>>
>> What type of radio are you looking for info about?
>>
>>
>> 73, David KB4FXC
>>
>>
>>
>> On Thu, 15 Mar 2018, "Fred Hillhouse via arm-allstar" wrote:
>>
>>
>>> Greetings,
>>>   I have an older radio I am looking at to be a home node. I was 
>>> looking for
>>> something that might describe the COS signal. Can someone guide as 
>>> to what
>> I
>>
>>> am looking for? I am happy with learning what I should Google for. COS
>>> brings up Motorola radio links by the hundreds.
>>>   Thanks!
>>>   Best regards,
>>> Fred N7FMH
>>
>>
>>
>> ---
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>
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