Thread: [Svxlink-devel] DTMF digits
Brought to you by:
sm0svx
From: isladelobos <isl...@ya...> - 2013-11-19 13:01:02
|
Hi. Im recently configured my radio with one filter 300-3000Hz and squelch 200 (0 to 255). I transmit DTMF digits (1234567890#*ABCD) (five meters from the TX and RX rigs) but the svxlink receive only some digits and anothers not. this is i read in the svxlink screen: Rx1: The squelch is OPEN (6.28936) SimplexLogic: digit=4 SimplexLogic: digit=7 SimplexLogic: digit=8 SimplexLogic: digit=0 SimplexLogic: digit=* SimplexLogic: digit=# Rx1: The squelch is CLOSED (7.0602) Only listen these digits. -- View this message in context: http://svxlink.996268.n3.nabble.com/DTMF-digits-tp3181.html Sent from the svxlink-devel mailing list archive at Nabble.com. |
From: Adi B. <dl...@gm...> - 2013-11-19 13:12:35
|
Am 19.11.2013 14:00, schrieb isladelobos: > Hi. > > Im recently configured my radio with one filter 300-3000Hz and squelch 200 > (0 to 255). > > I transmit DTMF digits (1234567890#*ABCD) (five meters from the TX and RX > rigs) but the svxlink receive only some digits and anothers not. > > this is i read in the svxlink screen: > > Rx1: The squelch is OPEN (6.28936) > SimplexLogic: digit=4 > SimplexLogic: digit=7 > SimplexLogic: digit=8 > SimplexLogic: digit=0 > SimplexLogic: digit=* > SimplexLogic: digit=# > Rx1: The squelch is CLOSED (7.0602) > Hi, change the values for DTMF_MAX_FWD_TWIST=xx DTMF_MAX_REV_TWIST=yy vy 73's de Adi, DL1HRC > Only listen these digits. > > > > -- > View this message in context: http://svxlink.996268.n3.nabble.com/DTMF-digits-tp3181.html > Sent from the svxlink-devel mailing list archive at Nabble.com. > > ------------------------------------------------------------------------------ > Shape the Mobile Experience: Free Subscription > Software experts and developers: Be at the forefront of tech innovation. > Intel(R) Software Adrenaline delivers strategic insight and game-changing > conversations that shape the rapidly evolving mobile landscape. Sign up now. > http://pubads.g.doubleclick.net/gampad/clk?id=63431311&iu=/4140/ostg.clktrk > _______________________________________________ > Svxlink-devel mailing list > Svx...@li... > https://lists.sourceforge.net/lists/listinfo/svxlink-devel |
From: <st...@ar...> - 2013-11-20 11:02:29
|
----- Original Nachricht ---- Von: isladelobos <isl...@ya...> An: svx...@li... Datum: 19.11.2013 14:00 Betreff: [Svxlink-devel] DTMF digits > Hi. > > Im recently configured my radio with one filter 300-3000Hz and squelch 200 > (0 to 255). > > I transmit DTMF digits (1234567890#*ABCD) (five meters from the TX and RX > rigs) but the svxlink receive only some digits and anothers not. > > this is i read in the svxlink screen: > > Rx1: The squelch is OPEN (6.28936) > SimplexLogic: digit=4 > SimplexLogic: digit=7 > SimplexLogic: digit=8 > SimplexLogic: digit=0 > SimplexLogic: digit=* > SimplexLogic: digit=# > Rx1: The squelch is CLOSED (7.0602) > > > Only listen these digits. This is because your TX and RX do not have a flat frequency response in the range 600Hz-2500Hz. The decoder will reject DTMF signal with unbalanced tone levels to avoid false detections from normal voice. Your can release the restriction by setting the TWIST parameters to a higher level, but this will increase the probability of false detections. The best way would be a correction of the frequency response e.g. by a correct setting of the (de)emphasis parameters. 73s Steve, DH1DM > > > -- > View this message in context: > http://svxlink.996268.n3.nabble.com/DTMF-digits-tp3181.html > Sent from the svxlink-devel mailing list archive at Nabble.com. > > ---------------------------------------------------------------------------- > -- > Shape the Mobile Experience: Free Subscription > Software experts and developers: Be at the forefront of tech innovation. > Intel(R) Software Adrenaline delivers strategic insight and game-changing > conversations that shape the rapidly evolving mobile landscape. Sign up now. > > http://pubads.g.doubleclick.net/gampad/clk?id=63431311&iu=/4140/ostg.clktrk > _______________________________________________ > Svxlink-devel mailing list > Svx...@li... > https://lists.sourceforge.net/lists/listinfo/svxlink-devel > |