| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | See Detail | Status | Related Standard |
| SJ 20856-2002 | English | 389 |
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Days<=3
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Requirements of interoperability and performance for HF single-tone modem
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SJ 20856-2002
| Valid |
SJ 20856-2002
|