MIL-STD-187-721 Interoperability And Performance Standard For Advanced Adaptive Hf RadioThe purpose of this document is to describe the technical parameters for adaptive high frequency HF radio that are more advanced than those described in MIL-STD-188-141. The advanced technology contained in this standard will guide the planning of military adaptive HF radio network technology into the 21st century. To fully understand and utilize this document, it is necessary to refer to portions of MIL-STD-188-141.

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MIL-STD-187-721D

report protocol "closes the loop" with passive LQA.  The LQA report protocol is used by station "A" to report to station "B" the LQA data collected by "A" from transmissions from "B" to "A".

b.  LQA reports are embedded in ALE frames as follows:  the first word in an LQA report message is an LQA report CMD word, formatted as shown on figure 6.  This is followed by LQA reports for the number of channels specified in the Chan field in the LQA report CMD. These are carried either in a data text message (DTM) or in a data block message (DBM), as specified by control bit KR5 (see table V).  In either case, the message carrying the reports shall immediately follow the LQA report command word.

*  Reserved block (set to 00)

FIGURE 6.  LQA report CMD format.

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