The MMDVM.log show nothing , excluding the Net data sent to USRP, in debug log mode, sometime will have ADC/DAC overflow message, but not all the time when the noise appear.
In MMDVMCal debug mode, execute nothing, a logs being printed, I guess it is a Random Noise signal .
The condition is buffer[2U] == MMDVM_CAL_DATA , is it means the RXLevel too high? but the RXLevel is ADC
} else if (buffer[2U] == MMDVM_CAL_DATA) {
bool inverted = (buffer[3U] == 0x80U);
short high = buffer[4U] << 8 | buffer[5U];
short low = buffer[6U] << 8 | buffer[7U];
short diff = high - low;
short centre = (high + low) / 2;
::fprintf(stdout, "Levels: inverted: %s, max: %d, min: %d, diff: %d, centre: %d" EOL, inverted ? "yes" : "no", high, low, diff, centre);
}
My question is , which parameter is used to raise the threshold of the signal trigger, avoid this not expected
noise voice? Or set in CDM750/GM340?
Need some tips, thank you very much!
[FM]
Enable=1
# Callsign=G4KLX
CallsignSpeed=20
CallsignFrequency=1000
CallsignTime=10
CallsignHoldoff=0
CallsignHighLevel=50
CallsignLowLevel=20
CallsignAtStart=1
CallsignAtEnd=1
CallsignAtLatch=0
RFAck=K
ExtAck=N
AckSpeed=20
AckFrequency=1750
AckMinTime=4
AckDelay=1000
AckLevel=50
# Timeout=180
TimeoutLevel=80
CTCSSFrequency=88.4
CTCSSThreshold=30
# CTCSSHighThreshold=30
# CTCSSLowThreshold=20
CTCSSLevel=20
KerchunkTime=0
HangTime=7
# AccessMode values are:
# 0 - Carrier access with COS
# 1 - CTCSS only access without COS
# 2 - CTCSS only access with COS
# 3 - CTCSS only access with COS to start, then carrier access with COS
AccessMode=1
# LinkMode=1 to remove almost all of the logic control
LinkMode=0
COSInvert=0
NoiseSquelch=0
SquelchThreshold=30
# SquelchHighThreshold=30
# SquelchLowThreshold=20
RFAudioBoost=1
MaxDevLevel=90
ExtAudioBoost=1
# ModeHang=10
https://github.com/g4klx/MMDVMHost/blob/master/MMDVM.ini
Hello to ALL:
After enable FM Mode, I got a Random event recently, appear in some Motorola receivers, such as the CDM750/GM340 (Not ALL).
It never appear before , seem it come in MMDVM STM32F4 firmware V2
The appearances :
1, It will trigger a local transmit(PTT) to TX side radio in FM repeater,
2, The COS/HB LED will light , means the repeater be opened.
3, Will trigger FM Network network data sent to Allstarlink node.
I recorded a short video and upload here , pay attend to the 3th second.
https://www.youtube.com/watch?v=mbbfl4YhuI8
The MMDVM.log show nothing , excluding the Net data sent to USRP, in debug log mode, sometime will have ADC/DAC overflow message, but not all the time when the noise appear.
In MMDVMCal debug mode, execute nothing, a logs being printed, I guess it is a Random Noise signal .
I find this code in MMDVMCal project : https://github.com/g4klx/MMDVMCal/blob/f530cc9fdce58381a374937b5b61d1ebad19f181/MMDVMCal.cpp#L1799
The condition is
buffer[2U] == MMDVM_CAL_DATA, is it means the RXLevel too high? but the RXLevel is ADCMy question is , which parameter is used to raise the threshold of the signal trigger, avoid this not expected noise voice? Or set in CDM750/GM340?
Need some tips, thank you very much!
VY 73 DE BI7JTA