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Description
Two Scales QRP RF Wattmeter And Dummy Load
A simple QRP wattmeter and dummy load that allows you to measure the RF output power. Designed for QRP with 1W to 10W scales or 2W to 20W. Optionally you also have an output to connect a voltmeter. I modified the board from the one presented in the video so it would be a little smaller to fit in an enclosure as big as the ammeter.
Schematic and Layout
Two Scales QRP RF Wattmeter And Dummy Load Schematic
Two Scales RF Wattmeter And Dummy Load - Schematic.jpg
Sep 01,2023
2,724 views
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Two Scales QRP RF Wattmeter And Dummy Load
QRP wattmeter and dummy load that allows me to measure the RF output power. Designed for QRP with 1W to 10W scales or 2W to 20W.
2724
3
4
Published: Sep 01,2023
BOM(Bill of materials)
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File Last Updated: 2025/04/10 (GMT+8)
File update record
2025-04-1022:26:37
Gerber file is updated.
2025-04-1022:06:29
Gerber file is updated.
2025-04-1022:03:16
Parts List (BOM) is updated.
2025-04-1021:40:05
Gerber file is updated.
2025-04-1021:37:54
Gerber file is updated.
2025-04-1021:27:09
Gerber file is updated.
2024-08-0106:02:50
Gerber file is updated.
2024-08-0106:01:27
Gerber file is updated.
2023-09-2219:55:47
Parts List (BOM) is updated.
2023-09-2219:14:49
Gerber file is updated.
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- Comments(4)
- Likes(3)
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Sorry for the late reply. The one I used was 500mA but I removed all the extra components it had inside and just used the meter itself.
I always say that simple is better ( ha ). Not perfect... but for QRP and homebrew projects is good enough. I can't wait to finish it and put it in a nice enclosure. 73, YO6DXE.