Homebrew Rf Power Meter

Homebrew swr and power meter first of all this swr meter in this article is not exactly homebrew as i based the circuit on the schematic in the excellent book arduino projects of amateur radio.

Homebrew rf power meter.

Hf 60w power amplifier irf840. Hf 10w to 200w class e f power amplifier. Rf power meter switch 5 4 2012. Homebrew rf field strength meter.

It is possible to make high frequency rf power swr standing wave ratio meters using homebrew directional couplers and other easily available parts. Pictures of a homebrew 2 4 ghz rf power meter swr meter. It is even possible to use the directional coupler and detector diodes from an old cellular phone. Hf 10w power amplifier.

144 mhz 125w power amplifier. Swr power meter digital forward reflected sensor digital display rf in rf out x x directional coupler envelope detectors digital processor. 14 mhz 20w linear power amplifier. Homebrew antenna swr analyzer.

Video looking at the final circuit configuration and software for the pwr swr meter. S meter vu meter with led. Or you can do the simpler thing find an rf ammeter. Performance power measurement homebrew tandem match bird coupled line digital pride breune diode type dependent 5 4 2012.

50mhz 350w power amplifier 2xblx15. 2 4 ghz rf power meter swr meter. My homebrew rf power meter has 2 inputs. Diamond gsv 1200 15 ampere power supply.

Using ohm s law you can determine power output into a dummy load. Performance swr measurement 1 0 1. No muss no fuss. Diamond sx 400 140 520 mhz swr meter.

1 using a 1n4148 peak detector and 2 using a 1n34a diode as the peak detector. Alinco ep 3010 30 ampere power supply. I found it accurate even at 2 meters. Homebrew 500 watt 450 mhz power amplifier.

This second port will read rf power from approximately 20dbm 0dbm. A power meter with wide frequency range and dynamic range and relatively accuracy is a key factor to make home brew activity feel professional and get a beginning rf measurement lab one of reason is most of rlb return loss bridge type measurement need detect a low power signal might 40dbm 10dbm. 3 mhz to 30 mhz 80w power amplifier. 50mhz 100w power amplifier.

Although i bought the book and respect the copyright of the authors i will share my own schematic here. 144 mhz 100w power amplifier.