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section # External key: explain Tone(s) not working with Externa PTT

ErikS-web
2023-11-16 17:31:34 +01:00
parent 9b02086842
commit 8e7a11cd05
1 changed files with 4 additions and 3 deletions
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7
Button-functions.md

@@ -71,11 +71,12 @@ If FM radio reception is active, it stops when a signal is received on a Frequen
* long press - user programmable in the menu: `F2Long`
* this button can also be used to send tone 1750Hz by holding it together with `PTT` button
# External key
# External key/microphone
## `PTT`
* Push To Talk button.
* The PTT on external microphone acts different than the internal PTT (side-)button.
On external PTT the TX waits until no RX-signal is received.
* The 'PTT on the external microphone' works differently than the 'internal PTT' (side) button.
> * - When pressing the PTT, the TX waits until no RX signal is received (observed with Internal PCB revision V1.4 and OK with V1.6). Works well when pressing the 'internal PTT'.
> * - A DTMF-tone (key-press) or 1750Hz-tone (side button) is cut off within a second. Works well when pressing the 'internal PTT'.
# Custom button functions
3 buttons can have its function changed. To change the function go to menu: