Thanks Comcokid,
I will buy a Bird element and jump over diode :)
In fact, that's what I already have, a Bird with DummyLoad and I need to see the spectrum in the same time with RF Power. Great ideea.
Thank you all for reply,
Eddy
Ok, I know Minicircuits Couplers but they support small power only. These days I setup one 50W 145MHz PA and I want to see / reduce his spur better than 40dB.
I don't have a flat high power resistive att to couple my Spectrum Analyser and I made a small line of Cu wire at some distance between...
Hi all,
I am not a microstrip specialist and hope to find here some advices. I want to build for me a directive coupler on printed circuit board FR4, with 30 dB attenuation for measurements with my Spectrum Analiser, Scope, etc on my power amplifiers.
I calculated main line with AppCAD from...