From d7f51b7881aa5abd60a5d096f659aafd8dcc4a5c Mon Sep 17 00:00:00 2001 From: egzumer Date: Sun, 29 Oct 2023 23:53:52 +0100 Subject: [PATCH] Updated Radio operation (markdown) --- Radio-operation.md | 22 ++++++++++++++++++++++ 1 file changed, 22 insertions(+) diff --git a/Radio-operation.md b/Radio-operation.md index 7ff6937..5bfb7f1 100644 --- a/Radio-operation.md +++ b/Radio-operation.md @@ -27,3 +27,25 @@ You can change the scan direction while scanning with UP/DOWN buttons. The scan can be stopped with the `EXIT` button, the search result will be ignored and channel/frequency will return to the one that was set before scan begun. Alternatively you can stop the scan with `PTT` or `MENU` button in which case the channel/frequency will be set to the last channel where transmission was found. +# DTMF calling (decoding) + +DTMF calling can be turned on in the menu `D Decd` (DTMF Decoding). You need a computer and programming cable to setup the whole system. You need to change `ANI ID` (programmable from the computer) of each radio to be unique in your network. It is also a good idea to program the list of contacts, their IDs and names. + +The basic idea is to be able to dial a one particular person (or a group) among many on the same frequency. If you turn on the DTMF calling on a given VFO your radio will be silent on that VFO until an incoming call arrives with the destination ID matching `ANI ID` of your radio. If you receive the call a time window opens up in which the speaker activates and a person on the other side can talk to you. The time window expires after delay set in `D Hold` menu entry from the time when incoming signal disappears. + +The call pattern is `recipient*sender*` where recipient is the `ANI ID` of a radio to which the call is being sent to, and sender is `ANI ID` of a radio that transmits the call (e.g. 102*103). In QS radio you only need to enter the recipient ID, the rest is appended automatically. You can send the call in two ways. One is, you go to the menu `D list` and choose a contact from the list and hit MENU button, its ID will be copied to the DTMF input box. You can transmit the call with PTT button. You can also open the DTMF input box by short press `* SCAN` button, and enter 3 digit recipient ID and hit PTT to send. + +You can use `#` wildcard in place of any of the ID digits to make a group calls where every radio matching the pattern will activate. In particular you can call `###` to call everyone. + +Menu items for DTMF calling: +* `ANI ID` - ID of your radio. +* `D ST` - DTMF site tone, whether you want to hear the tones in your speaker while they are being sent +* `D Resp` + * `DO NOTHING` - does nothing + * `RING` - radio beeps while the receiving time window is active + * `REPLAY` - sends a DTMF call back to the caller + * `BOTH` - both REPLAY and RING +* `D Hold` - length of a receiving time window +* `D Prel` - DTMF call preload, time from when the RF path activation to when the DTMF codes start being sent, higher value gives the receiving radio time to detect the signal and open squelch on time so it will not loose the codes +* `D Decd` - turns on the DTMF decoding +* `D List` - list of DTMF contacts \ No newline at end of file