Printed from https://fiscalreceipts.com/program/4367/ — built September 26, 2026. Every figure is citation-backed; see the page online for per-number provenance.
Electro Magnetic Spectrum Operations (EMSO)
Budget figures
FY2026 award data is a partial year — USAspending reports awards on a rolling basis, and this corpus runs through 2026-09-04. why partial FY2026 data? →
Budget trajectory
| Fiscal year | Amount |
|---|---|
| FY24 | $133.1MP-1 TOA · PB2026 |
| FY25 | $0J-book detail · PB2026 |
| FY26 | $35.4MP-1 TOA · PB2026 |
Decade view
P-1/R-1 workbook TOA basis, shown compact in $B/$M (the workbook records USD thousands); each figure cites its own President's Budget edition
The vertical scale does not start at zero: the baseline sits just below this program’s smallest year, so a low point on this line is not a small amount. Read the shape for direction and the grid below for the figures.
● actuals (line) · ○ enacted · ◇ request — gaps are editions the program is absent from, never interpolated.
| Series | FY22 | FY23 | FY24 | FY25 | FY26 |
|---|---|---|---|---|---|
| Actuals | $0 | – | $133.1M | ||
| Enacted | – | $0 | $177.3M | – | |
| Request | – | – | $177.3M | $182.5M | $35.4M |
blank = series not published for this year; – = absent from that edition.
Asked vs spent: the PB2024 book requested $177.3M for FY2024; the PB2026 book reported $133.1M as actual total obligation authority — $44.2M below the request. 133.1 − 177.3 = -44.2 USD millions — the compact figures above are rounded for reading.
Program lineage
No predecessor/successor lineage was recorded for this program element — no FY-to-FY transfer into or out of this line was stated in the ingested J-books, and none was inferred from the program structure.
Description
Description — Electro Magnetic Spectrum Operations (EMSO)
The Marine Electromagnetic Warfare Ground Family of Systems (MEGFoS): The MEGFoS funding line includes the current operational solution, Multi-Function Electronic Warfare (MFEW) Family of Systems (FoS) which replaced the legacy Counter Radio Controlled Improvised Explosive Device (RCIED) Electronic Warfare (EW) or CREW, system in FY 2018. MFEW added significant additional force protection including Counter-Unmanned Aircraft System (CUAS) and rudimentary offensive EW capabilities that will support operations through FY 2030. The future operational solution will be fulfilled by MEGFoS, a critical Force Design program that enables the Expeditionary Advanced Base Operations (EABO) construct by facilitating ground-based EW. MEGFoS is the future of Marine Corps ground electromagnetic warfare and is being developed to replace the current capability provided by MFEW which provides counter Radio Controlled Improvised Explosive Device (C-RCIED) and counter UAS capabilities. MEGFoS will provide Marine Corps Forces the ability to maneuver effectively in the electromagnetic spectrum (EMS) in a peer-to-peer environment. MEGFoS will employ artificial intelligence (AI) to identify signals of interest (SOI) and provides a networked EW capability equipped with low probability of intercept (LPI) and low probability of detection (LPD) antennas enabling the ability to sense and make sense of the EMS throughout the area of operations. MEGFoS provides electromagnetic warfare operators the ability to conduct electromagnetic fires on site, remotely attack targets identified via systems employed by incidental operators, conduct coordinated techniques across multiple systems, or pass target data to other systems to attack with kinetic fires. MEGFoS provides state of the art electromagnetic attack (EA), electromagnetic support (ES), and electromagnetic protection (EP) capabilities throughout the EMS. MEGFoS enables an exquisite ability to deny, disrupt, and degrade adversary communications, navigation, RADAR, and other systems operating in the EMS. The ability for instantaneous sensing, identification, exploitation, and disruption of enemy capabilities using non-traditional attack vectors and techniques to defeat sources of intentional and unintentional radiated electromagnetic energy ensures a technological edge for the Marine Corps in a peer-to-peer environment. MEGFoS detects and protects friendly spectrum access; senses and identifies spectrum usage; and disrupts the adversary's decision cycle. MEGFoS is being developed using the Command, Control, Computers, Communications, Cyber, Intelligence, Surveillance, and Reconnaissance(C5ISR)/EW Modular Open Suite of Standards (CMOSS) and Sensor Open Systems Architecture (SOSA) standards, in coordination with the Army, Navy, and Air Force. This will provide an open architecture of non-proprietary hardware and software platforms that will eliminate some proprietary equipment Marines currently carry, which will lower the weight and power requirements, reduce training burdens, lower procurement costs, and reduce sustainment costs. MEGFoS will be employed throughout the Fleet Marine Force and provide coordinated EW in support of Fires and Maneuver, Force Protection, Spectrum Management, and Battlespace Awareness. Prior to FY 2024, MEGFoS was funded in Budget Line Item 6520 EOD Systems.
Justification
Justification — Electro Magnetic Spectrum Operations (EMSO)
FY 2026 Base Appropriation Request: $35.396M MEGFoS: Funding supports the procurement of 95 Dismounted Backpack systems and Ancillary Components & Spares. The increase from FY2025 to FY2026 reflects the procurement of Dismounted Backpack systems.
Budget line items(workbook-cited)
P-1/R-1 workbook Total Obligation Authority basis (USD thousands) · PB2026.
Exhibit P-1
| Account | Org | Type | Amount |
|---|---|---|---|
| Procurement, Marine Corps | N | FY24 Actuals | $133.1M |
| Procurement, Marine Corps | N | FY26 Disc. Request | $35.4M |
| Procurement, Marine Corps | N | FY26 Total | $35.4M |
Budget Details(R-2/P-40 facts)
J-book detail basis (R-2/P-40, USD millions) · PB2026 — a different accounting basis from the P-1/R-1 workbook TOA above; where the two disagree, the reconciliation strip under Budget figures shows both.
Wider than this screen — swipe the table sideways for the remaining fiscal-year columns.
| Project | All Prior Years | FY24 Actuals | FY25 Total | FY26 Base | FY26 Request |
|---|---|---|---|---|---|
| Program Element | $0 | $133.1M | $0 | $35.4M | $35.4M |
Follow the dollar
No follow-the-dollar view — this program's awards haven't been crosswalked at high confidence (flows cover 312 of 1,938 programs). why coverage is partial? →
Awards
No awards are linked to this program element at high or medium confidence — the budget→award crosswalk only asserts links it can defend, and this line has none yet.
Lobbying mentions
No Senate LDA lobbying filing in the tracked data mentions this program element by code or alias.
Oversight
Department-level designation (not specific to this program)
GAO lists 5 high-risk areas for DOD as a whole. That designation covers the department, not Electro Magnetic Spectrum Operations (EMSO). No program-specific GAO finding for this line is in the ingested data. See the DOD oversight record.
Program dossier
No research dossier for this program — dossiers cover 50 of 1,938 programs, the largest fully J-book-detailed lines by FY2026 requested dollars. why no dossier here? →
Primary sources
Open any budget figure for its exact receipt. Verified line items lead with the highlighted government PDF; original spreadsheets download with their budget edition and exhibit in the filename.
Budget totals · TOA sources
FY2026 Department of Defense Budget: Procurement Programs (P-1) · comptroller.war.gov
Exhibit P-1 · O801
Complete workbook · unchanged saved copy. Saves as PB2026_DoD_P-1_Procurement.xlsx.
FY2024 Department of Defense Budget: Procurement Programs (P-1) · comptroller.war.gov
Exhibit P-1 · O773
Complete workbook · unchanged saved copy. Saves as PB2024_DoD_P-1_Procurement.xlsx.
FY2025 Department of Defense Budget: Procurement Programs (P-1) · comptroller.war.gov
Exhibit P-1 · Q816
Complete workbook · unchanged saved copy. Saves as PB2025_DoD_P-1_Procurement.xlsx.
Detailed budget justification
The related TOA spreadsheets above use a different accounting basis from R-2/P-40 detail. Their amounts are not assumed to match these detailed sources.