[App_rpt-users] RX Input Adjust Failed

[David McGough]

Bob,

rxnoise is set using unsquelched, raw discriminator noise; this level 
should always be much higher than an audio test signal.

Perhaps you're using a full-quieting received signal for the rxnoise 
source?


73, David KB4FXC


On Sun, 22 May 2016, kk6ecm wrote:

> Thanks! Part of the problem was my lack of understanding.
> 
> OK... have everything working, but having difficulty understanding the tune
> function.
> 
> radio tune rxnoise
> tune rxnoise maxtries=12, target=23000, tolerance=2750
> 
> radio tune rxvoice
> target=7200 tolerance=360
> 
> I'm passing the rxvoice, but failing the rxnoise. The radio seems to have a
> lot of noise, however the measured is a small fraction of the modulated
> signal. But the target for the rxnoise is 3 times the level of the
> rxvoice... I expected the rxnoise to be much lower than the rxvoice levels,
> comparable to what I'm measuring. IaxRpt is "measuring" a lot of noise (gree
> bar is showing strong. What am I missing here with respect to these
> measurement in the tune? What are the units? Gain? Where rxnoise would
> require much more gain (target?) than the rxvoice to achieve some level?
> 
> Thanks,
> 
> Bob,
> kk6ecm
> 73
> 
> -----Original Message-----
> From: app_rpt-users-bounces at ohnosec.org
> [mailto:app_rpt-users-bounces at ohnosec.org] On Behalf Of REDBUTTON_CTRL
> Sent: Sunday, May 22, 2016 12:32 PM
> To: app_rpt-users at ohnosec.org
> Subject: Re: [App_rpt-users] RX Input Adjust Failed
> 
> What is the squelch logic coming out of your radio?
> 
> If the line changes, does it go low with signal or no signal? And when 
> it goes low does it pull to ground?
> 
> The URI will not see a signal change if only voltage is supplied by the 
> radio. The radio MUST pull the signal to ground on receive or when 
> squelched.
> 
> If the radio doesn't pull to ground then you may need to connect an NPN 
> transistor to pull the line to ground. Then set USB radio for usbinvert.
> 
> VA3RQ
> 
> On 5/22/2016 3:41 PM, kk6ecm wrote:
> > No change... whenever I have ctcssfrom=no, the PTT on the URIx is active,
> > and app_rpt won't take DTMF commands. When I switch back to
> > ctcssfrom=usbinvert, all works normally, however, that configuration does
> > not work with my substitute receiver.
> >
> > Thanks,
> > Bob
> > kk6ecm
> > 73
> >
> > -----Original Message-----
> > From: app_rpt-users-bounces at ohnosec.org
> > [mailto:app_rpt-users-bounces at ohnosec.org] On Behalf Of REDBUTTON_CTRL
> > Sent: Sunday, May 22, 2016 11:21 AM
> > To: app_rpt-users at ohnosec.org
> > Subject: Re: [App_rpt-users] RX Input Adjust Failed
> >
> > Comment out the ctcss tones listed.
> > J
> >
> > On 5/22/2016 2:35 PM, kk6ecm wrote:
> >> I discovered app_rpt does not like ctcssfrom=no. Why? (I'm using DIAL).
> >>
> >> What am I missing?
> >>
> >> Thanks,
> >> Bob
> >> kk6ecm
> >> 73
> >>
> >> -----Original Message-----
> >> From: kk6ecm [mailto:kk6ecm at gmail.com]
> >> Sent: Sunday, May 22, 2016 10:37 AM
> >> To: 'app_rpt-users at ohnosec.org'
> >> Subject: RX Input Adjust Failed
> >>
> >> What could cause the Error: RX Input Adjust Failed?
> >>
> >> DONE tries=12, setting=1000, meas=58, sqnoise=13
> >> ERROR: RX INPUT ADJUST FAILED.
> >>
> >> No RF input to the radio.
> >>
> >> I'm attempting to setup a substitute receiver for testing, but am
> >> experiencing difficulty setting it up, and not wanting to make a switch
> to
> >> simpleusb, thus making the minimum number of changes.
> >>
> >> The substitute receiver (Yaesu FT-1500M) is detecting CTCSS, with USB COR
> >> out, and I'm using the speaker output. (see below conf file)
> >>
> >> Any thoughts?
> >>
> >> Thanks,
> >> Bob
> >> kk6ecm
> >> 73
> >>
> >>
> >> from usbradio_tune...
> >>
> >> hdwtype=0	
> >> rxboost=1
> >> txboost=1
> >> rxctcssrelax=1
> >> txctcssdefault=107.2
> >> rxctcssfreqs=107.2
> >> txctcssfreqs=107.2
> >> ;rxctcssoverride=0
> >> ;carrierfrom=dsp
> >> carrierfrom=usb   ;dsp
> >> ctcssfrom=no    ;usbinvert
> >> rxdemod=speaker ;flat
> >> txprelim=no
> >> txlimonly=no
> >> txtoctype=notone
> >> txmixa=composite
> >> txmixb=no
> >> invertptt=0
> >> duplex=1
> >> rxondelay=0
> >> rxnoisefiltype=0
> >> eeprom=0
> >>
> >> _______________________________________________
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