This dummy load, built with a custom case and containing the QRP-Labs 20-watt dummy load/watt-meter circuit, will present a perfect match to your radio’s 50-ohm antenna connector. This will allow you to test your radio and/or software without fear of damaging the radio. It also serves as a basic power meter when used in conjunction with a volt-meter. As measured with a RigExpert Stick Pro, this dummy load presents the following SWR on the ham bands: 80m–1.00:1, 60m–1.00:1, 40m–1.01:1, 30m–1.02:1, 20m–1.03:1, 17m–1.4:1, 15m–1.06:1, 12m–1.10:1, and 10m–1.11:1.
THREE VERSIONS AVAILABLE
1. Custom Case Only: This custom case is designed to use QRP-Labs’ excellent 20-watt dummy load circuit boards. If you already have their dummy load, you can mount it into this case in about ten seconds.
2. Custom Case and Dummy Load Kit: This includes our custom case and the QRP-Labs’ dummy load/watt-meter kit. The dummy load kit is provided to you at our cost so that you don’t have to place another order (to Turkey) to obtain the kit.
3. Assembled Case and Dummy Load: This includes a pre-built dummy load/watt-meter already mounted in our case. Building the kit takes about an hour and we charge $20 for assembly.
MEASURE POWER OUTPUT
You can also use this dummy load to get a good approximation of power output. To measure power output, insert a volt-meter’s probes about ¼” into the negative (-) and positive (+) probe holes on the top of the case and measure the voltage while transmitting. Use the graphs that come with the case to measure the approximate output power of your transmitter.
To purchase the dummy load kit itself, directly from QRP-Labs (without the case) go to: https://shop.qrp-labs.com/kits/dummy
A pdf manual for the dummy load is available to download here: https://offgridweather.com/wp-content/uploads/2023/11/20-watt_Dummy_Load.pdf
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