[Sls-rfm] References to Proximity-1 vs proximity links in 235.1 PN Ranging Directive

KAZZ, GREG J. (MSFC-HP27)[MOSSI2] greg.j.kazz at nasa.gov
Wed Aug 19 17:38:22 EDT 2026


Hi Dennis and RF&M WG,

SLP WG received a RID from ESA on 235.1 warning us to be mindful of the difference between Prox-1 vs proximity links. SLP WG is going through the document to ensure correct usage of those terms.

I found 6 references to Proximity-1 in the PN Ranging Directive in CCSDS 235.1 and I noted down why I think it should either continue to say "Proximity-1" or be changed to "proximity link".  We would appreciate it if the RF&MOD WG could review the attached file and provide the correct interpretation for the PN Ranging directive.

Thanks much,
Greg K.
SLP WG chair


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