Short Paging Tones on a TK-270(G)

[whitesox4life]

The BLS truck that I have been working with uses a short (2-3 sec single tone burst) as their paging tone. How can I put this in my TK-270(G) to set to alert to it?

[ramal121]

You could try group call.
Under 2 tone window, set format to A-B, set group call to A tone. Enter the burst tone for the A freq.
The gotcha is that there needs to be 5 seconds of tone to be considered a group call (per help file).
The 270G does not support single burst tones. Try it and see what happens...

[whitesox4life]

after doing some research and recording of this paging tone, i have determined that it is a QCII tone set without the A tone, meaning that it is a 3 second tone (just as B tone is in QCII). Still not possible to set in this radio?

[ramal121]

QCII is a Motorola two tone format. For an individual call (two different tones) the timing would be one second of A tone, then three seconds of B tone. QCII group call (one tone) timing is 8 seconds of a single tone. Kenwood uses these timing parameters in their two tone decode ( although group will trip in five seconds instead of eight as I mentioned).

If your BLS rig only gets 3 seconds of a single tone to decode, this sounds like a old Plectron single tone scheme, not QCII. Although you can program any old tone freq into a kenwood, if it won't hold for five seconds at the least, it won't decode. The only way to change this would be to diddle the firmware, scary!

[whitesox4life]

Wirelessly posted (LGE-VX9100/1.0 UP.Browser/6.2.3.2 (GUI) MMP/2.0)

Is there a guide on what lines are what for kenwood firmware? I am writing software using C++ and could mess with it if i had a guide and was told what to redo the line(s) as.