Lockheed Martin Marietta Plant
Cobb, Georgia
How we verified this
As of August 2026 RadioReference lists exactly one encrypted talkgroup on the Lockheed Martin Marietta UHF P25 system, the security primary channel, while assembly, engineering, ramp operations, checkpoint and alarm talkgroups are all in the clear.
Encryption Details
Cobb County Context
Cobb County is a mixed picture: 1 of 2 agencies we track here are fully encrypted (50%), which means some neighboring departments are still audible on a scanner.
See every agency we track in Cobb County → County encryption overview →
What This Means
Coverage here is uneven — parts of the system are locked and parts are open, so a scanner gives you an incomplete rather than an empty picture.
Frequently Asked Questions
Is Lockheed Martin Marietta Plant radio encrypted?
Yes. Lockheed Martin Marietta Plant uses P25 AES-256 encryption. Coverage here is uneven — parts of the system are locked and parts are open, so a scanner gives you an incomplete rather than an empty picture.
Can I listen to Lockheed Martin Marietta Plant on a police scanner?
Partially. Lockheed Martin Marietta Plant encrypts some of its talkgroups while leaving others open, so some channels may still be accessible. Check RadioReference for specific talkgroup status.
Why did Lockheed Martin Marietta Plant encrypt their radio?
The reasons offered are almost always the same two: officer safety and operational security. Whether either was tested against a real Cobb County incident is rarely part of the public record, whereas the consequences are easy to observe — no real-time accountability, and neighbouring agencies still in the clear left working around the gap.
Can Cobb County reverse the encryption decision?
Yes — nothing about the underlying radio technology forces this. It's a decision Cobb County officials made and can revisit, and other communities have pushed departments back toward open channels through sustained council pressure and coalition-building.
What can I do about Lockheed Martin Marietta Plant encryption?
File a FOIA request for Lockheed Martin Marietta Plant's radio recordings and encryption-decision paperwork, then show up to speak at a council or commission meeting. Find other residents or journalists in Cobb County who want the same access — state legislation requiring public radio access is the longer-term fix, but organized local pressure is what usually moves the needle first.