WSPR Without Tears
lower left. RF output comes through a BNC connector shown in the upper left. A WiFi dongle is
plugged into one of the USB ports (pi 2.0 only - it's built it to Pi 3.0). The Pi LEDs are on the left hand
side of the Pi board below the WWoT board. They are not visible in the picture.
The side view of the completed assembly ( Figure 5: WSPR Beacon (Side View)) shows how the
WWoT is plugged into the Pi. It's definitely possible to connect them incorrectly, so don't do that.
Notice from this view that the Pi USB connectors are on the right hand side and the WWoT BNC
connector is on the left. That's how it should be. Also, make sure that the Pi pins and the WWoT plug
are lined up. It is possible to offset one from the other, so you only have one row of pins connected.
Setup and Adjustment
What You Need
I'm assuming that you have -
1. Assembled Pi/WWoT
2. 2+ amp power supply for the Pi
3. Ethernet cable to connect Pi to your router
4. SSID and passkey for your router (see below if you don't have these)
5. PC connected to your network
6. Optional: USB WiFi adapter for Pi 2.0 (Pi 3.0 has WiFi built in)
TAPR (c) 2018-2019 “WSPR Without Tears” 7 Of 20 Version 2.1 05/20/2019
Figure 5: WSPR Beacon (Side View)
BNC
USB Connectors
