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 ideally be turned off in the networking settings to minimize power consumption and possible RFI. ASL3 now includes the Cockpit web admin interface that can be used to update WiFi settings and other node maintenance functions at http://[hostname].local:9090
4. An ASL3 issue that can occur is that if the USB cable 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 go 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.