DIY VSWR Meter for FPV, Lets test some antennas!

Let's set up a relatively cheap SWR meter that will allow us to "see" the characteristic of our antennas, and see how well they do (or don't) perform as intended! Links to the hardware and software below:
Hardware...
1. Noise Generator -
2. RF Bridge -
3. SMA Patch Cables -
4. 50 Ohm Dummy Load -
5. USB SDR Receiver -
6. SMA Adapter -
Software...
1. /
2. /
3. /
4.
Another option that looks good for the SDR receiver, is this from Banggood...
Kit -
Assembled -
While I don't have either of these, I thought I'd include them because they look like a nice option, similar to the Airspy units but at a price closer to the "cheap" units like I used here. If I didn't already have one I'd try this one for sure. I may still get one eventually just for fun... lol Make sure you read through the instructions before getting the kit version, it looks like assembly can be a bit tedious to be honest.
More good reading about SWR, what's good and bad -
__
Patreon:
You can help to support my channel by using the affiliate links below when making a purchase:
Banggood -
eBay -
Amazon -
Foxeer -
You can also make a donation if you wish to do so at the following link:
Support my channel and my efforts to bring you better content, every little bit helps!
Here's some affiliate links to the video gear I use from Ready Made R/C:
1.3GHz video transmitters (I use 200, 400, 800, and 1500mW on various planes)
I recommend this receiver to go with them. I use an older Racewood type they used to sell, but these are supposed to be at least as good with the same Comtech tuners in them. Apparently Racewood is no longer in business, so here's what replaced them:
I use this 8dbi Patch Antenna, it has been my go-to antenna for a long time now, for years! lol I've been out more then 10 miles using one of these and the 800mW vtx listed above:
On the transmitter side, the stock dipoles that come with them work pretty good together with that patch, but if you want slightly better performance and less weight/drag, consider these: