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waoarc2025_kit [2025/07/05 11:19] m0nvkwaoarc2025_kit [2025/08/14 14:50] (current) – removed gi3jmc
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-__**What you'll need to complete the assembly**__ 
-1. Raspberry Pi 2.0 Model B or Raspberry Pi 3.0 or Raspberry Pi 4. 
-2. 2 amp (minimum) power supply w/micro USB connector 
-3. Ethernet cable. 
-4. WiFi USB dongle. You only need this if you're using an Pi 2.0 and you want to use WiFi. WiFi 
-is built into the Pi 3.0. 
-5. SD card (4 GB min, grade 10) 
-6. SD card reader (micro SD card to USB) 
-7. antenna mate to SMA connector 
- 
-__**Programming an SD Card**__ 
-**Setup** 
-1. You need an SD Card; at least 4GB, 8GB is better. Class 10. 
-2. SD Card reader/writer. We've got a Targus Micro SD/T-F. It doesn't really matter what card 
-reader/writer you use. It connects your SD card to a USB port. 
-3. Win32DiskImager – It's a freebee. Download it from: 
-https://sourceforge.net/projects/win32diskimager/ or 
-sourceforge.net/projects/win32diskimager/. 
-2. Install Win32DiskImager. 
-3. Disk Image – Download it from: 
-   WSPR SD Card Image for Pi 2, 3 [[https://files.tapr.org/product_docs/WSPR//TAPR%20WSPR%20Image%20for%20Pi%202%20or%203%20-%2011Feb2019.img.zip]] 
-   WSPR SD Card Image for Pi 4.   [[https://files.tapr.org/product_docs/WSPR/TAPR%20WSPR%20Image%20for%20Pi%204%20-%2001Apr2021.img.zip]] 
-4. Unzip the file after it's finished downloading (it will take a while). 
- 
-__**Program SD Card**__ 
-1. Plug the SD Card reader/writer into a USB port. 
-2. Plug the SD Card into the reader/writer. 
-{{:windisk.jpg?400|}} 
-3. Start Win32DiskImager. 
-4. Click on the folder icon in the upper right and find the disk image you downloaded and 
-unzipped. 
-5. Click Write and go get a cup of coffee. Note: Win32DiskImager shows a small message box 
-when it's done writing the SD card. Unfortunately, the message box likes to hide behind 
-anything else you have up on the screen so you can't see it. Be forewarned that you might have 
-to go looking for it. 
-6. Click Exit. 
-7. Remove the SD card and install it into the Pi. Make sure that power is disconnected from the Pi 
-before doing this 
- 
-If you haven't annoyed the gods of the Internet too much today you should be in luck and everything 
-will work! 
- 
-__**Install SD Card into Pi**__ 
-First, insert the SD card into the Pi ( Figure 2: Inserting SD Card into Pi and Figure 3: SD Card 
-Installed in Pi). The SD card sorta slides in up side down. On Pi 2.0 it ratchets in (pops in then out a 
-little and sorta locks in place). On Pi 3.0 there's a friction fit, so there's no locking. 
- 
-__**Setting WSPR Configuration**__ 
-{{:wspr_config.jpg?400|}} 
-1. Open a web browser (Internet Explorer, Firefox, Chrome, …) and type in the IP address you 
-just recorded (192.168.0.67 for example). This will bring up the configuration screen shown in 
-Figure 7: WSPR Configuration Screen - 
-2. Enter your callsign and gridsquare parameters. 
-3. Enter the SSID and passkey (password) for your WiFi network. These are what you use to 
-enable your cell phone and things like Roku to use your home network. If you don't know what 
-they are you'll have to go digging through your router to figure them out (see the 
-Troubleshooting section). 
-If you elect to not use WiFi then you don't need to enter SSID and Passkey. You will have to 
-keep the Pi connected to the network by Ethernet cable because the Pi uses the Internet for time 
-synchronization. 
-4. Check/uncheck the transmit every 2 mins checkbox. (I recommend leaving it unchecked.) 
-A WSPR message takes just under two minutes to send. The fastest you can send WSPR 
-messages is every two minutes. It's considered bad form to flood the WSPR servers with 
-messages. The default is to send a WSPR message every ten minutes. If you check the transmit 
-every 2 mins checkbox then messages will be sent every two minutes. This setting is useful for 
-testing and short term experiments. 
-5. Set the Transmit Power and Transmit Band to 23 dBm and 30m for 30m and 20 dBm and 40m 
-for 40m. 
-6. When all done click on the **update button**.  
-This will store the data on the Pi. 
- 
-__**Restart Pi**__ 
-1. Press the pushbutton on the Kit board. Hold for two seconds and release. This commands the Pi to 
-enter shutdown mode (you're always supposed to shutdown a computer properly or the file 
-system can be damaged – pulling the plug is bad). 
-2. Unplug the power supply, wait 10 sec, then plug the power supply back in and wait until the 
-LEDs on the Pi stop flashing 
- 
-__**Measure RF Output**__ 
-The LED on the WWoT turns on when the WWoT is transmitting. Wait until the LED is on and 
-measure the voltage across the test points labeled RF Level and Gnd. This should be in the 
-range of 3-5 volts, indicating the WSPR transmitter is generating full power. 
- 
  
waoarc2025_kit.1751714377.txt.gz · Last modified: by m0nvk