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Refer to figure.
A VFR flight to Lahr (EDTL, 48°22′9″N, 7°49′40″E) is being planned. The pilot wants to use Lahr NDB as a reference.
The Morse Code which can be used to confirm that he/she is receiving the correct navigation aid is…

  • A

    … .

  • B

    … - .-.

  • C

    .-.. .-. -..

  • D

    .-.. …. .-.

Refer to figure.
Lahr NDB (337) is:

L .-.. (Dot, Dash, Dot, Dot)

H .... (4 Dots)

R .-. (Dot, Dash, Dot)

Do NOT confuse with the nearby LRD (108.05) DME.


The International Morse Code encodes each letter of the basic Latin alphabet, each of the Arabic numerals and a small set of punctuation and procedural signals (prosigns) as a sequence of short and long electrical pulses referred to as "dots" (short) and "dashes". The morse code identifier can be found inside the navaid symbol on the chart.

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