I am only looking for a simple circuit that will let me know if my antenna is matched fairly close. NOT looking for total perfection. Any idea what the proper way to use/adjust it is?
Thanks.
The circuit it will not work as a SWR meter, because there is no directivity in the coupler used.
You need a transformer or coupled lines to do the job.
Here is an example: **broken link removed**
Thanks for the reply. It just goes to show that people place bad /non-working schematics on the internet.....why they would waste their time I will never understand. I have everything for the schematic you told me to look at. The 10pf trimmer is used for fine tuning? Anything else you can tell me about this circuit before I build it? Usage/design etc....
Thanks for the reply. It just goes to show that people place bad /non-working schematics on the internet.....why they would waste their time I will never understand. I have everything for the schematic you told me to look at. The 10pf trimmer is used for fine tuning? Anything else you can tell me about this circuit before I build it? Usage/design etc....
"But as a "measurement instrument", bridge is fine (and broad band) to measure antenna input impedance. "
So If I was to make that bridge, I would connect it to my transmitter and antenna and it would let me know if the antenna is a good match for the transmitter by the LED not lighting up?