OSC SWE Operations Specialist
Chief E-7 Study Guide 2026
Exam Questions and Verified
Answers | Already Graded A+
What is the shape of a C-10315 in an HF block diagram? - 🧠 ANSWER
✔✔Square
Receive and transmit on separate frequency but not at the same time is an
example of what? - 🧠 ANSWER ✔✔Half-deplux circuit
,Receive and transmit on separate frequencies but concurrently is an
example of what? - 🧠 ANSWER ✔✔Full-duplex circuit
What does the "V" in KYV-5 stand for? - 🧠 ANSWER ✔✔Removable comm.
Security component
What does the "Y" in KYV-5 stand for? - 🧠 ANSWER ✔✔Speech
What does the "K" in KYV-5 stand for? - 🧠 ANSWER ✔✔Keying, permuting
What does the "W" in KWR-46 stand for? - 🧠 ANSWER ✔✔logic
programmer or programming
What does the "G" in KG-84 stand for? - 🧠 ANSWER ✔✔Key Generation
What is the nomenclature of an SKL? - 🧠 ANSWER ✔✔AN/PYQ-10
What is the nomenclature of the memory card contained in the SKL? - 🧠
ANSWER ✔✔KOV-21
What information is in the "precedence line"? - 🧠 ANSWER ✔✔The priority
and date time group
How many times must you press the zeroize button on an SKL before
irreversible deletion occurs? - 🧠 ANSWER ✔✔1
,What is the nomenclature of the crypto card in the STE? - 🧠 ANSWER
✔✔KSV-21
What is the AL Code of the STE crypto card? - 🧠 ANSWER ✔✔1
Mini Loop Antenna on WMEC/WHEC is what directional? - 🧠 ANSWER
✔✔bi-directional
You are required to load this into a KWR-46 before you can receive data? -
🧠 ANSWER ✔✔UV, CV, BAV (KEK)
What freq spectrum should not be used for long range? - 🧠 ANSWER
✔✔VHF, UHF, SHF, EHF
What freq spectrum is not LOS? - 🧠 ANSWER ✔✔LF, MF, HF
What is the frequency manual? - 🧠 ANSWER ✔✔Spectrum Management
COMDTINST 2400.1H
What is the Radiotelephone Handbook? - 🧠 ANSWER ✔✔COMDTINST
M2300
What is the IAD/CAD frequency? - 🧠 ANSWER ✔✔121.5 MHz
What is the MAD frequency? - 🧠 ANSWER ✔✔243.0 MHz
COPYRIGHT©NINJANERD 2025/2026. YEAR PUBLISHED 2026. COMPANY REGISTRATION NUMBER: 619652435. TERMS OF USE. PRIVACY
STATEMENT. ALL RIGHTS RESERVED
3
, What DSC frequency must cutters monitor? - 🧠 ANSWER ✔✔VHF 156.525
HF 2187.5 kHZ
What does amplitude mean? - 🧠 ANSWER ✔✔The amount of radioactive
energy in a radio wave
What is the NAVMACS acronym for? - 🧠 ANSWER ✔✔Naval Modular
Automated Communications System
What is CUDIXS the acronym for? - 🧠 ANSWER ✔✔Common User Digital
Information Exchange System
Which sphere has the most effect on HF? - 🧠 ANSWER ✔✔Ionosphere
What is the nomenclature for antenna control? - 🧠 ANSWER ✔✔C-9597
Is FSB simplex or duplex? - 🧠 ANSWER ✔✔Simplex
What is the SIPRNET acronym for? - 🧠 ANSWER ✔✔Secret Internet
Protocol Router Network
What type of crypto is used for FSM? - 🧠 ANSWER ✔✔KG-175
If zeroized, the KYV-5 is what classification? - 🧠 ANSWER ✔✔...
What type of battery is used for the SKL? - 🧠 ANSWER ✔✔Lithium-ion
Chief E-7 Study Guide 2026
Exam Questions and Verified
Answers | Already Graded A+
What is the shape of a C-10315 in an HF block diagram? - 🧠 ANSWER
✔✔Square
Receive and transmit on separate frequency but not at the same time is an
example of what? - 🧠 ANSWER ✔✔Half-deplux circuit
,Receive and transmit on separate frequencies but concurrently is an
example of what? - 🧠 ANSWER ✔✔Full-duplex circuit
What does the "V" in KYV-5 stand for? - 🧠 ANSWER ✔✔Removable comm.
Security component
What does the "Y" in KYV-5 stand for? - 🧠 ANSWER ✔✔Speech
What does the "K" in KYV-5 stand for? - 🧠 ANSWER ✔✔Keying, permuting
What does the "W" in KWR-46 stand for? - 🧠 ANSWER ✔✔logic
programmer or programming
What does the "G" in KG-84 stand for? - 🧠 ANSWER ✔✔Key Generation
What is the nomenclature of an SKL? - 🧠 ANSWER ✔✔AN/PYQ-10
What is the nomenclature of the memory card contained in the SKL? - 🧠
ANSWER ✔✔KOV-21
What information is in the "precedence line"? - 🧠 ANSWER ✔✔The priority
and date time group
How many times must you press the zeroize button on an SKL before
irreversible deletion occurs? - 🧠 ANSWER ✔✔1
,What is the nomenclature of the crypto card in the STE? - 🧠 ANSWER
✔✔KSV-21
What is the AL Code of the STE crypto card? - 🧠 ANSWER ✔✔1
Mini Loop Antenna on WMEC/WHEC is what directional? - 🧠 ANSWER
✔✔bi-directional
You are required to load this into a KWR-46 before you can receive data? -
🧠 ANSWER ✔✔UV, CV, BAV (KEK)
What freq spectrum should not be used for long range? - 🧠 ANSWER
✔✔VHF, UHF, SHF, EHF
What freq spectrum is not LOS? - 🧠 ANSWER ✔✔LF, MF, HF
What is the frequency manual? - 🧠 ANSWER ✔✔Spectrum Management
COMDTINST 2400.1H
What is the Radiotelephone Handbook? - 🧠 ANSWER ✔✔COMDTINST
M2300
What is the IAD/CAD frequency? - 🧠 ANSWER ✔✔121.5 MHz
What is the MAD frequency? - 🧠 ANSWER ✔✔243.0 MHz
COPYRIGHT©NINJANERD 2025/2026. YEAR PUBLISHED 2026. COMPANY REGISTRATION NUMBER: 619652435. TERMS OF USE. PRIVACY
STATEMENT. ALL RIGHTS RESERVED
3
, What DSC frequency must cutters monitor? - 🧠 ANSWER ✔✔VHF 156.525
HF 2187.5 kHZ
What does amplitude mean? - 🧠 ANSWER ✔✔The amount of radioactive
energy in a radio wave
What is the NAVMACS acronym for? - 🧠 ANSWER ✔✔Naval Modular
Automated Communications System
What is CUDIXS the acronym for? - 🧠 ANSWER ✔✔Common User Digital
Information Exchange System
Which sphere has the most effect on HF? - 🧠 ANSWER ✔✔Ionosphere
What is the nomenclature for antenna control? - 🧠 ANSWER ✔✔C-9597
Is FSB simplex or duplex? - 🧠 ANSWER ✔✔Simplex
What is the SIPRNET acronym for? - 🧠 ANSWER ✔✔Secret Internet
Protocol Router Network
What type of crypto is used for FSM? - 🧠 ANSWER ✔✔KG-175
If zeroized, the KYV-5 is what classification? - 🧠 ANSWER ✔✔...
What type of battery is used for the SKL? - 🧠 ANSWER ✔✔Lithium-ion
