Which mode of Loran-C requires a minimum of 3 transmitters with iterative computation to obtain a fix?(a) Hyperbolic mode(b) Rho-Rho-Rho(c) Rho-Rho-Theta(d) Rho-Theta-ZuluI have been asked this question in an online interview.My question is from Hyperbolic Radio Systems in portion Terrestrial Radio Navigation System of Avionics

Which mode of Loran-C requires a minimum of 3 transmitters with iterat

1.	Which mode of Loran-C requires a minimum of 3 transmitters with iterative computation to obtain a fix?(a) Hyperbolic mode(b) Rho-Rho-Rho(c) Rho-Rho-Theta(d) Rho-Theta-ZuluI have been asked this question in an online interview.My question is from Hyperbolic Radio Systems in portion Terrestrial Radio Navigation System of Avionics
Answer» The correct choice is (b) Rho-Rho-Rho Explanation: There are some Loran-C USERS who do not employ Loran-C in a HYPERBOLIC mode but rather in the direct range rho-rho-rho mode. The rho-rho-rho process involves a minimum of three TRANSMITTER stations and the use of an ITERATIVE computation to obtain FIX.

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