Now the final bits have arrived for the SWR Meter module, I can do the final assembly. Here the SMA connectors are installed on the side of the eBay meter, for forward & reverse power tap. These are simply tee’d off the wiring inside the meter where it connects to
Continue readingArduino SWR Power Meter Final Parts & Calibration
I thought I’d detail the process I use to fit an N-Type connector to a coax cable, as I don’t usually solder these connectors. Before stripping, fit the backnut, washer & rubber seal onto the cable. The cable is first stripped back to reveal the shield. This cable has a
The latest addition to my radio shack is the GY561 frequency & power meter, which has already come in useful for measuring the output power of all my radios. It’s a small device, roughly the same size & weight as a stock UV-5R. Power is provided by 3 AAA cells.
I recently posted about a small analog SWR/Power meter I got from eBay, and figured it needed some improvement. After some web searching I located a project by ON7EQ, an Arduino sketch to read SWR & RF power from any SWR bridge. The Arduino code is on the original author’s
In my original review, I noted that this radio was supplied with a SO-259 socket for the antenna connection. However I’m less than fond of these, due to their non-constant impedance, which can cause signal loss issues at VHF/UHF. Because of this, I’ve replaced it with a high quality N-type
As I’m building up my radio shack, I figured an SWR meter would be a handy addition to my arsenal. This is a cheap Moonraker brand meter, which also will measure RF power. Above the front of the meter is shown, with the moving coil meter movement on the left,