| PHOR_Mode | int | R/W | 0 | 1 | Selects modulation band: 0 Stheno, 24 kHz, or 1 Euryale, 10 kHz. Setting this variable automatically updates PHOR_Carrier. |
| PHOR_Carrier | int | R/W | 5000 | 44000 | Acoustic carrier frequency in Hz. Normally controlled by PHOR_Mode. |
| PHOR_PhyAddrTx | int | R/W | 0 | 127 | Transmit, or remote, physical address. |
| PHOR_PhyAddrRx | int | R/W | 0 | 127 | Receive, or local, physical address. |
| PHOR_SpCodeNo | int | R/W | 0 | 7 | Outer spreading-code index. Advanced users may replace the default code set with a custom OuterCodeFile.dat in /opt/popoto. |
| PHOR_Version | int | R/W | 0 | 1 | Polynomial version selector. |
| PHOR_PCIS | int | R/W | 0 | 1 | Encryption enable, where 1 is on. |
| PHOR_Seed | int | R/W | 0 | 16777216 | Seed value used when encryption is enabled. |