Location: West of Forest Grove, OR
Basic Equipment and Configuration:
- Raspberry Pi 1.0 Rev B SBC
- TNC-X connected via USB
- Motorola GM300 VHF radio
- APRX running 2-second viscous digipeater and igate
The SSADDL digipeater is a viscous digipeater. That means that it uses a small delay to listen for other echoes before deciding to digipeat a packet. This helps avoid the case where multiple digipeaters in an area waste bandwidth by all echoing the same packet multiple times. The SSADDL digipeater will only digipeat a package if it hears the packet, and no other digipeaters in the area repeat it.
The SSADDL digipeater is also an iGate, when it is able. It achieves this via a 1.2GHz Hi-Speed D-STAR link to the OCRG installation at Mt. Hebo. This link provides a 64kbit IP path between the two mountains, which allows SSADDL access to the internet in order to iGate the packets that it hears. Click here for digipeater and iGate statistics for the machine.