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874-LBA: Difference between revisions
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The {{Title|General Radio 874-LBA Slotted Line}} was introduced in {{Catalog O}} and remained available through {{Catalog S}}. Its function is to observe the electric field along the inside of a coaxial transmission line using a carriage-mounted probe moving along the line. | The {{Title|General Radio 874-LBA Slotted Line}} was introduced in {{Catalog O}} and remained available through {{Catalog S}}. Its function is to observe the electric field along the inside of a coaxial transmission line using a carriage-mounted probe moving along the line. | ||
By observing minima and maxima of a standing-wave pattern, the characteristics of a circuit connected to the load side of the line can be determined. Applications include | By observing minima and maxima of a standing-wave pattern, parameters like frequency, standing-wave ratio, or impedance can be measured, and thereby the characteristics of a circuit connected to the load side of the line can be determined. Applications include analysis of antennas, components, coaxial elements, and networks. | ||
The 874-LBA is an update of the [[874-LB]], featuring improved accuracy and carriage construction. The redesigned carriage is controlled by a nylon cord and a series of pulleys to remove its drive control to a fixed position at the load end. | The 874-LBA is an update of the [[874-LB]], featuring improved accuracy and carriage construction. The redesigned carriage is controlled by a nylon cord and a series of pulleys to remove its drive control to a fixed position at the load end. | ||