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Connectors: Difference between revisions
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==UHF== | ==UHF== | ||
The UHF connector is basically a [[Connectors#Banana|banana]] connector | The UHF connector is an early coaxial connector, basically a [[Connectors#Banana|banana]] connector | ||
with a screw-on shield. | with a screw-on shield. The male is often called a PL-259, and the female is often called an SO-239. | ||
The male is often called a PL-259, | |||
and the female is often called an SO-239. | Although it is called a "UHF" connector, the connector's construction does does not provide | ||
Although it is called a "UHF" connector, | a controlled impedance that matches the impedance of the cables it is typically used with. | ||
the connector's construction does does not provide | Manufacturers usually specify this connector as suitable for use up to 200 or 300 MHz only. | ||
a controlled impedance that matches the impedance | |||
of the cables it is typically used with. | The design has been used since the 1930's, and it is used on many pieces of early Tektronix gear, | ||
initially having the advantage that 4 mm (banana) plugs as used on earlier equipment could | |||
The design has been used since the 1930's, | be inserted directly. | ||
and it is used on many pieces of early Tektronix gear. | |||
Tek provided kits that allowed owners or field technicians to convert instruments from UHF connectors | Like other test equipment manufacturers, Tektronix moved away from UHF connectors in the mid-1960s | ||
to [[Connectors#BNC|BNC connectors]], which are smaller, quicker to attach and remove, and have better | Tek provided kits that allowed owners or field technicians to convert instruments from UHF connectors | ||
high-frequency characteristics (controlled impedance). | to [[Connectors#BNC|BNC connectors]], which are smaller, quicker to attach and remove, and have | ||
better high-frequency characteristics (controlled impedance). | |||
Contemporary use of UHF connectors is limited mostly to ham radio gear. | |||
The UHF connector is used in the [[511]], [[512]], [[513]], [[514]], [[515]], [[516]], [[517]], | The UHF connector is used in the [[511]], [[512]], [[513]], [[514]], [[515]], [[516]], [[517]], | ||