M-Code
E141890
M-Code is an advanced, encrypted military GPS signal designed to provide more secure and jam-resistant positioning and navigation for authorized users.
All labels observed (1)
| Label | Occurrences |
|---|---|
| M-Code canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T1248838 — resolving that mention is where its identity was fixed. The disambiguator weighed these candidate entities and picked the highlighted one (or “None”, minting a new entity). This is how homonymy is resolved: the same surface form can point to different entities.
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: M-Code Context triple: [GPS, militarySignal, M-Code]
-
A.
Coda
Coda is a 2021 coming-of-age drama film about a hearing girl in a deaf family that gained widespread acclaim and multiple awards, including an Academy Award for Best Picture.
-
B.
Mimics
Mimics are a highly adaptive alien species from the science fiction story "Edge of Tomorrow" (and its source novel "All You Need Is Kill") known for their time-resetting ability and relentless war against humanity.
-
C.
The Machine
The Machine is the nickname of Albert Pujols, a Dominican-American former Major League Baseball first baseman renowned for his remarkably consistent and powerful hitting.
-
D.
Operation MI
Operation MI was the Imperial Japanese Navy’s World War II plan to seize Midway Atoll, culminating in the pivotal Battle of Midway in June 1942.
-
E.
Muster
Muster, commonly known as Aggie Muster, is a cherished Texas A&M University tradition in which Aggies worldwide gather annually to honor and remember fellow Aggies who have passed away.
- F. None of above. chosen
- G. Unsure - the case is ambiguous/there is not enough information to decide.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: M-Code Target entity description: M-Code is an advanced, encrypted military GPS signal designed to provide more secure and jam-resistant positioning and navigation for authorized users.
-
A.
Coda
Coda is a 2021 coming-of-age drama film about a hearing girl in a deaf family that gained widespread acclaim and multiple awards, including an Academy Award for Best Picture.
-
B.
Mimics
Mimics are a highly adaptive alien species from the science fiction story "Edge of Tomorrow" (and its source novel "All You Need Is Kill") known for their time-resetting ability and relentless war against humanity.
-
C.
The Machine
The Machine is the nickname of Albert Pujols, a Dominican-American former Major League Baseball first baseman renowned for his remarkably consistent and powerful hitting.
-
D.
Operation MI
Operation MI was the Imperial Japanese Navy’s World War II plan to seize Midway Atoll, culminating in the pivotal Battle of Midway in June 1942.
-
E.
Muster
Muster, commonly known as Aggie Muster, is a cherished Texas A&M University tradition in which Aggies worldwide gather annually to honor and remember fellow Aggies who have passed away.
- F. None of above. chosen
Statements (43)
| Predicate | Object |
|---|---|
| instanceOf |
encrypted navigation signal
ⓘ
military GPS signal ⓘ |
| accessControlledBy | cryptographic keys ⓘ |
| aimsTo |
enhance operational security for military navigation
ⓘ
ensure continuity of service in contested environments ⓘ |
| broadcastBy |
GPS space segment
ⓘ
surface form:
GPS Block IIF satellites
GPS space segment ⓘ
surface form:
GPS Block III satellites
GPS space segment ⓘ
surface form:
GPS Block IIR-M satellites
|
| classifiedAs | restricted service signal ⓘ |
| compatibleWith | modernized military GPS receivers ⓘ |
| designedFor | authorized military users ⓘ |
| developedBy |
Department of Defense
ⓘ
surface form:
United States Department of Defense
|
| developedFor | modernized GPS constellation ⓘ |
| hasProperty |
anti-jam capability
ⓘ
anti-spoofing capability ⓘ encrypted spreading codes ⓘ higher power spectral density than legacy military GPS signals ⓘ improved signal acquisition ⓘ improved signal tracking ⓘ |
| hasUserSegment | military GPS receivers ⓘ |
| intendedTo |
improve resistance to interference
ⓘ
improve resistance to jamming ⓘ improve resistance to spoofing attacks ⓘ provide assured positioning, navigation, and timing ⓘ |
| introducedAsPartOf | GPS modernization program ⓘ |
| notAvailableTo |
civilian users
ⓘ
commercial users ⓘ |
| operatedBy | United States Space Force ⓘ |
| operatesOn |
L1 frequency band
ⓘ
L2 frequency band ⓘ |
| partOf |
GPS
ⓘ
surface form:
Global Positioning System
|
| provides |
secure navigation
ⓘ
secure positioning ⓘ secure timing ⓘ |
| signalType | spread-spectrum signal ⓘ |
| successorOf | P(Y)-code ⓘ |
| supports |
land force navigation
ⓘ
maritime navigation ⓘ military aviation navigation ⓘ precision-guided munitions ⓘ |
| usedBy |
United States Armed Forces
ⓘ
surface form:
United States military
allied military forces ⓘ |
| uses | binary phase-shift keying modulation ⓘ |
How these facts were elicited
The pipeline generated the facts above by prompting gpt-5.1 with this entity's name + description and the instruction below.
Instruction
You are a knowledge base construction expert. Given a subject entity and a description of it, return factual statements that you know for the subject as a JSON list of dictionaries(triples), where keys must be "subject", "predicate" and "object". The number of facts may be very high, between 25 to 50 or more, for very popular subjects. For less popular subjects, the number of facts can be very low, like 5 or 10. # Requirements - If you don't know the subject at all, return an empty list. - If the subject is not a named entity, return an empty list. - Include at least one triple where predicate is "instanceOf". - Do not get too wordy. - Separate several objects into multiple triples with one object.
Input
Subject: M-Code Description of subject: M-Code is an advanced, encrypted military GPS signal designed to provide more secure and jam-resistant positioning and navigation for authorized users.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.