All chokes add impedance to the system, impedance is essentially AC resistance, and is in fact so similar to resistance that it has the exact same electric symbol. From here you can simply apply ohm's law to figure out what the impedance of a choke effects, and impedance always and only effects current.
While I haven't seen it on a home made Gainmaster, I have seen five turns on a 4 inch or so form chokes on several T2LT antennas in person (one of which was up in a tree in my back yard for a while), as well as many others made by people on the various forums I frequent, and on these antennas they work exactly like the chokes on the Gainmaster, they become the end point of the antenna and force a voltage node.
When it comes to the Gainmaster choke, perhaps their is a property with that choke design that Sirio finds desirable. For example, more winds on a narrower form tends to widen the useable bandwidth of an air choke. With everything else that I know of in the Gainmaster antenna, and how they achieved that bandwidth, would they not want to do everything they can to ensure the choke they use works as well as it can over the entire bandwidth all of the time? Also, that design is more aesthetically pleasing than the wider smaller version, as least IMHO...
The DB
While I haven't seen it on a home made Gainmaster, I have seen five turns on a 4 inch or so form chokes on several T2LT antennas in person (one of which was up in a tree in my back yard for a while), as well as many others made by people on the various forums I frequent, and on these antennas they work exactly like the chokes on the Gainmaster, they become the end point of the antenna and force a voltage node.
When it comes to the Gainmaster choke, perhaps their is a property with that choke design that Sirio finds desirable. For example, more winds on a narrower form tends to widen the useable bandwidth of an air choke. With everything else that I know of in the Gainmaster antenna, and how they achieved that bandwidth, would they not want to do everything they can to ensure the choke they use works as well as it can over the entire bandwidth all of the time? Also, that design is more aesthetically pleasing than the wider smaller version, as least IMHO...
The DB
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