OSC SWE OPERATIONS SPECIALIST
CHIEF E-7 STUDY GUIDE EXAM
QUESTIONS AND ANSWERS. VERIFIED
2026.
What is the shape of a C-10315 in an HF block diagram? - ANS Square
Receive and transmit on separate frequency but not at the same time is an example of what? -
ANS Half-deplux circuit
Receive and transmit on separate frequencies but concurrently is an example of what? -
ANS Full-duplex circuit
What does the "V" in KYV-5 stand for? - ANS Removable comm. Security component
What does the "Y" in KYV-5 stand for? - ANS Speech
What does the "K" in KYV-5 stand for? - ANS Keying, permuting
What does the "W" in KWR-46 stand for? - ANS logic programmer or programming
1 @COPYRIGHT 2025/2026 ALLRIGHTS RESERVED.
,What does the "G" in KG-84 stand for? - ANS Key Generation
What is the nomenclature of an SKL? - ANS AN/PYQ-10
What is the nomenclature of the memory card contained in the SKL? - ANS KOV-21
What information is in the "precedence line"? - ANS The priority and date time group
How many times must you press the zeroize button on an SKL before irreversible deletion
occurs? - ANS 1
What is the nomenclature of the crypto card in the STE? - ANS KSV-21
What is the AL Code of the STE crypto card? - ANS 1
Mini Loop Antenna on WMEC/WHEC is what directional? - ANS bi-directional
You are required to load this into a KWR-46 before you can receive data? - ANS UV, CV, BAV
(KEK)
What freq spectrum should not be used for long range? - ANS VHF, UHF, SHF, EHF
What freq spectrum is not LOS? - ANS LF, MF, HF
What is the frequency manual? - ANS Spectrum Management COMDTINST 2400.1H
2 @COPYRIGHT 2025/2026 ALLRIGHTS RESERVED.
,What is the Radiotelephone Handbook? - ANS COMDTINST M2300
What is the IAD/CAD frequency? - ANS 121.5 MHz
What is the MAD frequency? - ANS 243.0 MHz
What DSC frequency must cutters monitor? - ANS VHF 156.525 HF 2187.5 kHZ
What does amplitude mean? - ANS The amount of radioactive energy in a radio wave
What is the NAVMACS acronym for? - ANS Naval Modular Automated Communications
System
What is CUDIXS the acronym for? - ANS Common User Digital Information Exchange System
Which sphere has the most effect on HF? - ANS Ionosphere
What is the nomenclature for antenna control? - ANS C-9597
Is FSB simplex or duplex? - ANS Simplex
What is the SIPRNET acronym for? - ANS Secret Internet Protocol Router Network
What type of crypto is used for FSM? - ANS KG-175
3 @COPYRIGHT 2025/2026 ALLRIGHTS RESERVED.
, If zeroized, the KYV-5 is what classification? - ANS ...
What type of battery is used for the SKL? - ANS Lithium-ion
What is the nomenclature of the CIK for the SKL? - ANS ...
Which IFF modes are military? - ANS 1,2,3
Which IFF mode i.d.'s friendly or military? - ANS ...
What lights up for IFF lost comms? - ANS 7600
What is uplink referred to as? - ANS Used to describe the frequency transmitted to the
satellite
What is downlink referred to as? - ANS Used to describe the frequency received from the
satellite.
What is the speed of service objectives for Flash? - ANS As fast as possible with a goal of 10
mins
What is the speed of service objectives for Immediate? - ANS 30 mins
What is the speed of service objectives for Priority - ANS 3 hours
4 @COPYRIGHT 2025/2026 ALLRIGHTS RESERVED.
CHIEF E-7 STUDY GUIDE EXAM
QUESTIONS AND ANSWERS. VERIFIED
2026.
What is the shape of a C-10315 in an HF block diagram? - ANS Square
Receive and transmit on separate frequency but not at the same time is an example of what? -
ANS Half-deplux circuit
Receive and transmit on separate frequencies but concurrently is an example of what? -
ANS Full-duplex circuit
What does the "V" in KYV-5 stand for? - ANS Removable comm. Security component
What does the "Y" in KYV-5 stand for? - ANS Speech
What does the "K" in KYV-5 stand for? - ANS Keying, permuting
What does the "W" in KWR-46 stand for? - ANS logic programmer or programming
1 @COPYRIGHT 2025/2026 ALLRIGHTS RESERVED.
,What does the "G" in KG-84 stand for? - ANS Key Generation
What is the nomenclature of an SKL? - ANS AN/PYQ-10
What is the nomenclature of the memory card contained in the SKL? - ANS KOV-21
What information is in the "precedence line"? - ANS The priority and date time group
How many times must you press the zeroize button on an SKL before irreversible deletion
occurs? - ANS 1
What is the nomenclature of the crypto card in the STE? - ANS KSV-21
What is the AL Code of the STE crypto card? - ANS 1
Mini Loop Antenna on WMEC/WHEC is what directional? - ANS bi-directional
You are required to load this into a KWR-46 before you can receive data? - ANS UV, CV, BAV
(KEK)
What freq spectrum should not be used for long range? - ANS VHF, UHF, SHF, EHF
What freq spectrum is not LOS? - ANS LF, MF, HF
What is the frequency manual? - ANS Spectrum Management COMDTINST 2400.1H
2 @COPYRIGHT 2025/2026 ALLRIGHTS RESERVED.
,What is the Radiotelephone Handbook? - ANS COMDTINST M2300
What is the IAD/CAD frequency? - ANS 121.5 MHz
What is the MAD frequency? - ANS 243.0 MHz
What DSC frequency must cutters monitor? - ANS VHF 156.525 HF 2187.5 kHZ
What does amplitude mean? - ANS The amount of radioactive energy in a radio wave
What is the NAVMACS acronym for? - ANS Naval Modular Automated Communications
System
What is CUDIXS the acronym for? - ANS Common User Digital Information Exchange System
Which sphere has the most effect on HF? - ANS Ionosphere
What is the nomenclature for antenna control? - ANS C-9597
Is FSB simplex or duplex? - ANS Simplex
What is the SIPRNET acronym for? - ANS Secret Internet Protocol Router Network
What type of crypto is used for FSM? - ANS KG-175
3 @COPYRIGHT 2025/2026 ALLRIGHTS RESERVED.
, If zeroized, the KYV-5 is what classification? - ANS ...
What type of battery is used for the SKL? - ANS Lithium-ion
What is the nomenclature of the CIK for the SKL? - ANS ...
Which IFF modes are military? - ANS 1,2,3
Which IFF mode i.d.'s friendly or military? - ANS ...
What lights up for IFF lost comms? - ANS 7600
What is uplink referred to as? - ANS Used to describe the frequency transmitted to the
satellite
What is downlink referred to as? - ANS Used to describe the frequency received from the
satellite.
What is the speed of service objectives for Flash? - ANS As fast as possible with a goal of 10
mins
What is the speed of service objectives for Immediate? - ANS 30 mins
What is the speed of service objectives for Priority - ANS 3 hours
4 @COPYRIGHT 2025/2026 ALLRIGHTS RESERVED.