Homebrew Rf Power Meter

Homebrew rf field strength meter.

Homebrew rf power meter.

I had a 0 2a weston mounted in a mini box with very short leads to the so 239 jacks. Homebrew 500 watt 450 mhz power amplifier. Homebrew antenna swr analyzer. Performance swr measurement 1 0 1.

Hf 60w power amplifier irf840. Rf power meter switch 5 4 2012. Hf 10w to 200w class e f power amplifier. Video looking at the final circuit configuration and software for the pwr swr meter.

144 mhz 100w power amplifier. 50mhz 350w power amplifier 2xblx15. S meter vu meter with led. This second port will read rf power from approximately 20dbm 0dbm.

Pictures of a homebrew 2 4 ghz rf power meter swr meter. Swr power meter digital forward reflected sensor digital display rf in rf out x x directional coupler envelope detectors digital processor. No muss no fuss. Diamond sx 400 140 520 mhz swr meter.

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. Or you can do the simpler thing find an rf ammeter. I found it accurate even at 2 meters. Performance power measurement homebrew tandem match bird coupled line digital pride breune diode type dependent 5 4 2012.

My homebrew rf power meter has 2 inputs. Although i bought the book and respect the copyright of the authors i will share my own schematic here. It is possible to make high frequency rf power swr standing wave ratio meters using homebrew directional couplers and other easily available parts. It is even possible to use the directional coupler and detector diodes from an old cellular phone.

Diamond gsv 1200 15 ampere power supply. 50mhz 100w power amplifier. 1 using a 1n4148 peak detector and 2 using a 1n34a diode as the peak detector. Daiwa cn 801h 1 8 200 mhz swr meter.

Alinco ep 3010 30 ampere power supply. 14 mhz 20w linear power amplifier. 4 kw hf power amplifier solid state. Using ohm s law you can determine power output into a dummy load.

Hf 10w power amplifier. 3 mhz to 30 mhz 80w power amplifier.