Which statement concerning exposure to...

Question 1 / 2707066636eec28f7522a1c51cd93

Question 1 of 2707066636eec28f7522a1c51cd93

Which statement concerning exposure to radiation is TRUE?

Question 1 of 27070

Which statement concerning exposure to radiation is TRUE?

🔍 Key Concepts

• Difference between radio frequency (RF) radiation and ultraviolet (UV) rays • Typical power levels and radiation pattern of INMARSAT-A/B dish antennas vs INMARSAT-C antennas • How automatic transmission might create a hazard if someone is close to an antenna

💭 Think About

• Think about which INMARSAT equipment uses a high-gain directional antenna (dish) and what that implies for exposure risk. • Consider whether a small, low‑power data terminal is more or less likely to be a radiation hazard than a large voice/data terminal. • Ask yourself which answer choices confuse UV filtering or "omnidirectional" coverage with actual safety from RF exposure.

✅ Before You Answer

• Verify which INMARSAT systems use dish-type, high‑gain antennas on many vessels. • Check whether INMARSAT-C is known for low power, omnidirectional operation rather than a tight, focused beam. • Confirm that antennas which can auto-transmit without operator action may pose a hazard if someone is standing very close in the main beam.

Question 1 of 27070

Which statement concerning exposure to radiation is TRUE?

The INMARSAT unit's ray dome filters out potentially dangerous UV rays.

Certain INMARSAT systems will automatically transmit when called and can expose an individual to harmful radiation.

An INMARSAT-C antenna must be carefully avoided because it focuses the transmitter's signal into a fine beam of energy.

INMARSAT-A and B antennas are safe because they are omnidirectional.

Question 1 / 2707066636eec28f7522a1c51cd93

Question 1 of 2707066636eec28f7522a1c51cd93

Which statement concerning exposure to radiation is TRUE?

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Question 1 of 27070

Which statement concerning exposure to radiation is TRUE?