SBCA Equipment Setup 5

Question 1

A Ku-band dish is experiencing rain fade during heavy storms. Which of the following is the most effective permanent mitigation strategy?

Accepted Answer

Upgrade to a larger dish to increase antenna gain and link margin

Answer

A larger dish provides higher antenna gain, increasing the system's link margin and improving rain fade resilience without changing the satellite signal itself.

Question 2

What is the recommended torque specification approach when tightening F-connectors to satellite receiver input ports?

Accepted Answer

Maximum hand-tight plus a quarter turn with pliers

Answer

Industry practice calls for finger-tight plus a quarter turn with a wrench to achieve a weatherproof, mechanically secure connection without over-tightening and damaging threads.

Question 3

When installing a dish mount on a non-penetrating roof mount (NPRM) with ballast, what is the primary structural concern?

Accepted Answer

Adequate weight distribution to prevent wind uplift without exceeding roof load limits

Answer

NPRM installations must balance enough ballast to resist wind loads against the roof's maximum allowable dead load per square foot.

Question 4

Which signal parameter is used to verify correct satellite transponder lock on a professional satellite receiver display?

Accepted Answer

Bit Error Rate (BER) and Eb/No or C/N

Answer

BER (Bit Error Rate) and carrier-to-noise (C/N or Eb/No) readings confirm that the receiver is locked to the correct transponder with sufficient signal quality.

Question 5

What is the purpose of inserting a DC blocking capacitor in a satellite IF coaxial line?

Accepted Answer

Prevent DC voltage from the receiver from reaching components not designed to handle it

Answer

A DC block prevents the 13/18 V DC supply voltage from the receiver from reaching downstream equipment such as splitters, meters, or other receivers not designed for powered lines.

(SBCA) Satellite Broadcasting and Communications Association Certification Practice Test

(SBCA) Satellite Broadcasting and Communications Association Certification Practice Test

SBCA Equipment Setup 5