Re: How does IFF mode 4 works???

I don't know how much detail you're after, but Mode 4 is a NATO IFF
standard.  Unlike Modes 1, 2 and 3 it is encrypted.  Also, unlike these
other modes, it tends to only be interrogated very occasionally - eg. to
verify identity before engaging the aircraft.  If you want lots of detail
there will be a NATO STANAG available describing it in its entirety.

A Google search brings up quite a bit of information too:

http://www.google.com/search?sourceid=navclient&ie=UTF-8&oe=UTF-8&q=%22Mode+4%22+IFF

Paul



"Tobias Endrullis" <[EMAIL PROTECTED]> wrote in message
news:[EMAIL PROTECTED]
> Hi,
> can anyone tell (explain) me how IFF mode 4 is working? Or does anyone
know a page in the web where I can find information about
> that?
>
> Tobias