NWSA - National Wireless Safety Alliance Antenna and Line Installation Questions and Answers

Question 1

When hoisting a 300-foot coaxial cable run, what is the minimum number of hoisting grips required according to industry best practices?

Accepted Answer

Two, one at the top and one in the middle

Answer

One at the top

Answer

Three, one at the top, middle, and bottom

Answer

One for every 50 feet of cable

Question 2

A tower technician is tasked with weatherproofing a newly installed N-type connector on an antenna jumper. Which of the following describes the proper layering sequence for maximum protection?

Accepted Answer

A primary wrap of butyl rubber tape followed by an outer wrap of UV-resistant electrical tape.

Answer

A single layer of UV-resistant electrical tape.

Answer

An initial wrap of electrical tape, followed by butyl rubber tape.

Answer

Two layers of butyl rubber tape with no outer covering.

Question 3

During an antenna installation, which of the following practices is most likely to introduce Passive Intermodulation (PIM)?

Accepted Answer

Using stainless steel hose clamps to secure cables near an antenna.

Answer

Using low-PIM certified mounting hardware.

Answer

Ensuring all connectors are torqued to the manufacturer's specification.

Answer

Cleaning all metal surfaces before making connections.

Question 4

A crew is preparing to install new panel antennas on a sector frame. The construction drawings specify an antenna centerline elevation and a mechanical tilt of 4 degrees. What must the crew verify before finalizing the antenna position?

Accepted Answer

That the antenna mount itself is installed plumb (perfectly vertical).

Answer

That the antenna is perfectly plumb, regardless of the mount.

Answer

That the signal strength is highest at the specified elevation.

Answer

That the mechanical tilt is set to 0 degrees for initial testing.

Question 5

When installing a new transmission line, which of the following is a critical step for preventing water from entering the building or equipment shelter at the cable entry point?

Accepted Answer

Creating a drip loop in the cable before it enters the port.

Answer

Ensuring the cable is perfectly straight as it enters the port.

Answer

Sealing the entry port from the inside only.

Answer

Using a grounding kit directly at the entry point.

Question 6

What is the primary purpose of a hoisting grip when lifting transmission lines?

Accepted Answer

To safely distribute the pulling force over a section of the cable without causing damage.

Answer

To provide a permanent grounding point for the cable.

Answer

To protect the connector from damage during the lift.

Answer

To serve as the primary, permanent support for the cable's weight after installation.