I misplaced the original post,and had only just scanned it quickly (so I can't be 100% sure of the the original question) but was the person asking what to actually use as a capacitor? I found a coup
Coax stub capacitors certainly can work in some applications, but we have to be careful how we use them! Coax makes a notoriously low-Q capacitor, and using capacitance times length in feet is only
Tom, What if the coax is in SERIES with the feedline, like in a gamma match, instead of using the coax as a 'tuning stub'? This was my impression of what the questioner meant. Don N8DE ______________
The first time out, though, these caps are awkward, because they are hard to adjust. 73, Pete N4ZR Sometimes a tower is just a tower __________________________________________________________________
Hi Don, All problems are exactly the same. I'm not in the least saying coax does or will not work. I'm just mentioning we should be mindful of what it really is, and that is a stub! The longer the c
Tom, I think you still misunderstand what I'm saying. What if the coax is in series with the feedline ?? For example: The center conductor of the coax 'capacitor' connected ONLY to the center conduct
Good point! While that is a bit better for voltage, there is a much better way still. Connect the shield of the "capacitor" to itself at both ends, and the center conductor to itself at both ends. N