Radio-navigation acronym expansion — LORAN What does the term ‘‘LORAN’’ stand for in radio navigation systems?
-
Along range navigation
-
Blong range TV transmission
-
Clong range cable transmission
-
Deither (b) or (c)
Answer
Correct Answer: long range navigation
Explanation
Introduction / Context:LORAN is a historic hyperbolic radio navigation system used by maritime and aviation users to determine position using time-difference measurements of pulsed transmissions from fixed stations. This question checks the expansion of the acronym.
Given Data / Assumptions:
- Acronym: LORAN.
- Context: radio navigation, not broadcasting.
Concept / Approach:LORAN expands to ‘‘Long Range Navigation.’’ It uses synchronized transmitters; by measuring time differences between received pulses, the receiver derives hyperbolic lines of position whose intersection yields location.
Step-by-Step Solution:
1) Recognize category: radio navigation systems.2) Match acronym meaning: Long Range Navigation.3) Select the option stating exactly this phrase.Verification / Alternative check:Standard references and historical documentation of LORAN (e.g., LORAN-C) all expand to Long Range Navigation.
Why Other Options Are Wrong:
- TV/cable transmission options are unrelated to navigation and the LORAN technology.
- Either (b) or (c) aggregates two incorrect broadcasting terms.
Common Pitfalls:Assuming LORAN is tied to television due to the ‘‘long range’’ wording; misclassifying it as a general communications acronym.
Final Answer:long range navigation