Hi all,
I am trying to understand antennas a little more, I realise there are many variables, but I simply want more the rule of thumb information and nothing too complex.
I have an antenna analyser, Oscilloscope, signals generator, L/C meter and of course a standard electrical meter.
I have been experimenting with winding toroids for end fed wires and have some information, but am having difficulty putting it into a method of working.
I think I first need to find the impedance of the wire (20.1 Mtrs long for 40 Mtrs), then calculate the wire winding ratio, then match the wire with a capacitor. I have succeeded and failed after a number of attempts, so it isn't consistent.
If this is correct, first can someone tell me how to get the wire impedance form the long wire, please?
Cheers, Camerart.
I am trying to understand antennas a little more, I realise there are many variables, but I simply want more the rule of thumb information and nothing too complex.
I have an antenna analyser, Oscilloscope, signals generator, L/C meter and of course a standard electrical meter.
I have been experimenting with winding toroids for end fed wires and have some information, but am having difficulty putting it into a method of working.
I think I first need to find the impedance of the wire (20.1 Mtrs long for 40 Mtrs), then calculate the wire winding ratio, then match the wire with a capacitor. I have succeeded and failed after a number of attempts, so it isn't consistent.
If this is correct, first can someone tell me how to get the wire impedance form the long wire, please?
Cheers, Camerart.