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Making Type-F Connections
Good connections require a skilled operator. The most common cause of
measurement error is poor connections.
Typically all precision microwave connectors are designed with an
alignment feature which engages prior to finger insertion to ensure
alignment and support and avoid female finger damage.
The existing SCTE Interface Practices Subcommittee recommended "F"
plug and part does not have any preinsertion alignment features. (See
SCTE IPS-SP-4 and IPS-SP-401.) To avoid female finger failure, the
burden of pin insertion alignment must be sustained by the user. Refer
to
How to Make a Connection
1. Ground yourself and all devices. Wear a grounded wrist strap and
2. Visually inspect the connectors.
3. If necessary, clean the connectors.
4. Carefully align the connectors. The male connector center pin must
5. Push the connectors straight together. Do not twist or screw them
Do not turn the device body. Only turn the connector nut. Major damage
CAUTION
to the center conductor can occur if the device body is twisted.
6. The preliminary connection is tight enough when the mating plane
7. Relieve any side pressure on the connection from long or heavy
8. Tighten the connector finger-tight. A torque wrench is not included
Chapter 3
Figure
3-9.
work on an antistatic mat.
slip concentrically into the contact fingers of the female connector.
together. As the center conductors mate, there is usually a slight
resistance.
surfaces make uniform, light contact. Do not overtighten this
connection.
At this point all you want is a connection in which the outer
conductors make gentle contact at all points on both mating
surfaces. Very light finger pressure is enough.
devices or cables.
with the type-F kit. If a torque wrench is needed, use one with a
wrench opening of 12 mm and a torque setting of 170 N-cm.
Gauging and Making Connections
Making Type-F Connections
3-29
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