"SITOR (NBDP)" communications are based on a...

"SITOR (NBDP)" communications are based on a...

Question 1 of 270701EHuGZ3UCDp69MhfoCat

"SITOR (NBDP)" communications are based on a digital code system:

Question 1 of 27070

Q

"SITOR (NBDP)" communications are based on a digital code system:

🔍 Key Concepts

• SITOR (NBDP) uses a specific ITU radio telex coding system • Difference between 5-unit (Baudot/ITA-2) code and 7-bit codes like ASCII • How many "mark" (1) and "space" (0) elements are used in that SITOR character code

💭 Think About

• Recall whether SITOR is derived from traditional telex (RTTY) systems using a 5-unit code, or from newer computer-based 7-bit codes like ASCII. • Think about why SITOR needs error detection and how the pattern of ones and zeros in each character can help detect errors. • Eliminate any option that mixes different bit-length codes (for example, one for ship and another for shore) if that does not match how standard telex coding works.

✅ Before You Answer

• Confirm whether SITOR/NBDP is standardized on a single, fixed bit-length per character. • Verify in your notes if SITOR is based on ITA-2 (5-bit) or on a 7-bit parity-protected scheme. • Check which option correctly ties the number of ones vs zeros to an error-detecting code used in SITOR.