CERTIFIED VSAT INSTALLER ASSESSMENT

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Assessment Guidelines

The VSAT Installer Certification assessment consists of 30 questions to be answered in 60 minutes. The questions are multiple-choice (single and multiple answers), arranged correctly, filling in the blank, and true or false statements.

You will need to score over 80% to pass and attempt the exam a maximum of 3 times.

If you fail to pass the exam on your 3rd attempt, you will have to enroll for the certification again.

You will receive your Certified VSAT Installer certificate after you have passed the assessment, which you can download from your user account.

Take your time and read the question carefully. Good luck!

Certified VSAT Installer Assessment

Question 1 of 30
58:53

1.What is the typical latency of a VSAT link?

INFORMATION

You are using a Galaxy 18 (G-18) which is a geostationary satellite at 123°W.

 

Certified VSAT Installer Assessment

Question 1 of 30
58:12

1.What is the typical latency of a VSAT link?

INFORMATION

You are using a Galaxy 18 (G-18) which is a geostationary satellite at 123°W.

 

2.What satellite orbit is approx. 35,700km above the Earth’s surface?

3.What 3 elements make up a 3-axis antenna


4.What is the Ku Band Uplink frequency?



5.Sort the Stabilized BDE in order

Sort the equipment in to the following order:

Equipment 1
Equipment 2
Equipment 3

 


6.During the commissioning test the remote site has to transmit a CW. What does CW mean?


7.What is 0dBm expressed in Watts (W)?



8.What is the impedance of LMR400, LMR600 and EcoFlex 15 coax?



9.Select 2 examples of Non-Ionising Radiation.


10.There should be no need to adjust the circular polarization of the RF feed assembly.


11.What is the correct BUC LO frequency?

INFORMATION

You are installing a Comtech CDM625A modem on a C Band SCPC link. You need to enter the correct Local Oscillator frequency for the BUC in the modem config. The 10MHz BUC reference signal is enabled in the config. The model number of the BUC is NJT5669 with the frequency ranges as below.

 


12.An Uninterruptible Power Supply (UPS) can protect equipment against under and over voltage from the supply.



13.N-Type adaptors can be 50Ω or 75Ω?


14.What is NOT a possible rain fade solution?



15.The RF feed assembly consists of the following parts



16.What is the term used in maritime satellite communications for the bearing (azimuth) to the satellite referenced from the bow of the vessel in a clockwise direction.


17.The smaller the VSAT antenna the smaller the beam width of the signal.



18.DoubleTalk Carrier-in-Carrier, based on patented “Adaptive Cancellation” technology, allows transmit and receive carriers of a duplex link to share the same transponder space?

 



19.Which is the Co-Pol signal?


20.What is the correct L band receive frequency?

INFORMATION

You are installing a Ku band VSAT with the pictured LNB. The downstream DVB-S2 carrier is 12.525GHz.

 

21.Comtech CDM-625 and Paradise Datacom Q-Flex are examples of which type of VSAT modems?

 



22.The NOC has reported the the remote site Tx power is -40dBm and is still running too hot. What can be done at the remote site to increase the Tx power?


22.The NOC has reported the the remote site Tx power is -40dBm and is still running too hot. What can be done at the remote site to increase the Tx power?



23.You are pointing an Antenna at Optus D2 at 152.0°E. You azimuth is 42° and elevation is 36.26°. The antenna has a 17.3° offset. What is the elevation measured on the back frame of the antenna?

Pointing Information from your mobile app.
…23…








24.VSAT is an acronym for what?


25.What is used to protect the O ring on this BUC to prevent moisture penetration?



26.What is the usual minimum value for isolation during the commissioning test?



27.What could be 3 reasons for poor isolation during the commissioning?



28.The NOC has reported a gradual drop in the Rx signal at a remote site and has tasked you to travel to site to fault find. What could possibly be a reason for the gradual drop in Rx?

29.What minimum PPE should you take to an install site?

30.What is the impedance of RG-6 and RG-11 coax?



Certified VSAT Installer Assessment

70%80%

Failed

  • Time spent

    00:31:42

  • Points

    21 / 30

  • Questions

    30

  • Correct

    21

  • Wrong

    9

  • Skipped

    0

Last Attempted

QuestionsTime spentMarksPassing gradeResult
21 / 3000:29:3321 / 3080%70.00%




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