| A | B |
|---|
| 103.1a Discuss VLF communications regarding: Receivers | None on board |
| 103.1b Discuss VLF communications regarding: Antennas | None on board |
| 103.2a Discuss HF communications regarding: Transmitters | URT-23D, 4 on board |
| 103.2b Discuss HF communications regarding: Receivers | R-2368 Receiver, 8 on board |
| 103.2c Discuss HF communications regarding: Antennas | 35' whip antennas |
| 103.3a Discuss UHF communications regarding: Transceivers | WSC-3, 6 dedicated SATCOM, 5 interchangeable between LOS and SATCOM |
| 103.3b Discuss UHF communications regarding: Antennas | OE-82 'Trashcan' antenna for SATCOM. 'Eggbeater' antennas, fleet broadcast, receive only |
| 103.3c Discuss UHF communications regarding: Satellite capabilities | WSC-3 Transceiver allows for both LOS and satellite comms. |
| 103.4 Discuss VHF communications | 30-300 MHz band, two-way comms, portable use, ship 'bricks' operate on this frequency. International distress freq 121.5 MHz |
| 103.4a Discuss VHF communications regarding: Transceivers | Commercial, mobile two-way radios. Base for the bricks. |
| 103.4b Discuss VHF communications regarding: Transmitters | GRC-211, international distress beacon |
| 103.4d Discuss VHF communications regarding: Antennas | Fiberglass whips, portable antennas |
| 103.1 Discuss VLF communications | 3-30 KHz band, low data-rate signals, and comms with submarines |
| 103.2 Discuss HF communications | 3-30 ?? band, used for long range OTH comms. Ship to shore uses. ESL uses HF as a backup to SHF |
| 103.3 Discuss UHF communications | 300 MHz - 3 GHz band, used for LOS and SATCOM comms |
| 103.5 State the types and uses of portable comms equip: SAT Phones | Do not require link with cell tower to communicate, provides comms via SAT uplink/downlink |
| 103.5 State the types and uses of portable comms equip: EPIRB | Emergency Position Indicating Radio Beacon. Can be used during abandoned ship evolution, transmits distress signal, marks current ship location |
| 103.5 State the types and uses of portable comms equip: Iridium Phone | Used as tertiary comms device, SAT linked |
| 103.6 State the purpose of Routine Destruction | involves normal, periodic disposal of any classified media with normal routine. Can involve burning, shredding, or magnetizing a hard drive |
| 103.6 State the purpose of Emergency Destruction | entails immediate destruction, by any means necessary, of said media; authorized by CO. Many radio centers still have axes mounted to the bulkhead. |
