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SS0014 Practice Exercise Answer Key & Review
Lesson 3: Net Radio Interface Operation

Situation: You are the signal officer in charge of NRI for your division.

1.   Which of the following devices is NOT used to provide NRI services?

  D. C-2299/VRC.

The AN/GSA-7, AN/GRA-39, and C-6709/G are all devices that will provide NRI services. The C-2299/VRC is a radio set control used to provide retransmission functions in the AN/VRC-12 series radios.
2.   For which of the following interfaces should you establish a net radio interface?

  B. Connecting a SINCGARS radio with an MSE network.

All other choices involve connecting a wire system with another wire system, or connecting a radio set with another radio set or network. SINCGARS to MSE is the only choice that combines a radio set and a telephone system.
3.   When you establish an NRI using the AN/GSA-7 what is the purpose of the 2000 Hz beep tone?

  A. To remind the telephone subscriber to use proper radio procedures.

The AN/GSA-7 produces a 2000 Hz beep tone that sounds every five seconds when the transmitter is keyed. This tone serves as a reminder to the subscriber that he is transmitting on a radio frequency and that he should observe proper radio procedures.
4.   Using the C-6709 device, from how far away can you control the radio transmitter?

  B. 2.5 miles.

The C-6709/G can control a radio transmitter from a distance of up to 2.5 miles or 4 km.

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SS0014 Edition A Examination
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