[arm-allstar] COS equivalent for other radios

[Fred Hillhouse]

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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