SBCA Equipment Setup 2

Question 1

When aligning a Ku-band dish for a geostationary satellite, which tool is most commonly used to achieve peak signal strength?

Accepted Answer

Satellite signal meter

Answer

A satellite signal meter provides real-time signal strength readings that guide fine azimuth and elevation adjustments during dish alignment.

Question 2

What is the primary purpose of a feedhorn on a satellite dish?

Accepted Answer

Focus reflected signals into the LNB

Answer

The feedhorn collects the reflected microwave signals from the dish surface and directs them into the LNB for conversion.

Question 3

A DIRECTV SWM (Single Wire Multiswitch) allows multiple receivers to share a single coax run by using which technique?

Accepted Answer

Frequency stacking

Answer

SWM uses frequency stacking to place multiple satellite transponder signals on different frequency slots within a single coaxial cable.

Question 4

Which of the following best describes the purpose of a diplexer in a satellite installation?

Accepted Answer

Separates satellite IF signals from over-the-air TV signals on one cable

Answer

A diplexer combines or separates satellite IF frequencies and OTA broadcast frequencies so both can share the same coaxial cable.

Question 5

During dish installation, what does 'skew' adjustment specifically control?

Accepted Answer

The rotational angle of the LNB around the feed axis

Answer

Skew (or polarization rotation) rotates the LNB to align with the satellite's signal polarization angle based on geographic location.

(SBCA) Satellite Broadcasting and Communications Association Certification Practice Test