Notes & Instructions

1. RX and TX level adjustments can be made in the ASL radio tune settings, by logging in by SSH and running "susbtune", then follow the prompts to adjust the level settings. An easy way to set Rx levels is to transmit into the node speaking very loudly and increase the Rx volume/gain control until the ADC Clip LED illuminates, then reduce the volume ~10% or so. Be sure the ADC Clip LED never lights during normal use.
2. You can check your audio using Parrot mode: Enter DTMF command *921 to enable, *922 to disable. (Be sure you're not connected to any other nodes when doing any testing.) N2DYI's Parrot Test Node 55553 can also be used. When setting levels keep in mind that it's better to be a little on the low side than to have possible clipping and distortion.
3. For nodes with WiFi, it is recommended to use wired ethernet when available for best performance. In this case the WiFi module should be turned off with the SSH command "ifconfig mlan0 down" (for Dell 3040's - may differ on other MiniPCs) or DTMF command *692, and can later be turned back on with the command "ifconfig mlan0 up" or DTMF command *693. The WiFi will default to on when the node is next powered on or rebooted, unless this is changed in the networking settings. Nodes with > 8GB eMMC can be configured by connecting the node to a TV/monitor, mouse and keyboard. The KDE desktop has a network management utility in the taskbar where you can select and configure WiFi networks. To update WiFi settings or other node maintenance functions on RPi's visit the web interface at http://node_____.local:9090
4. A common issue that can occur with ASL3 is that if the USB interface is unplugged, moved to a different port, or changes are made in asl-menu, ASL may lose track of which USB port the URI/UCI is plugged into. If this occurs, the URI/UCI Status LED may be lit solid (not blinking) and no audio/PTT will be going through. To fix this you can try running asl-menu and selecting the desired channel driver again, but most likely you'll need to manually edit simpleusb.conf or usbradio.conf, find the line that starts with devstr= and delete the text after the equal sign. Then restart ASL or reboot the node. ASL will then automatically search for the correct USB port and update the devstr setting.
5. If you have any questions be sure to review the How-To Guides at AllScan.info, which are frequently updated.