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Radio Knowledge Center

Practical commercial two-way radio guides.

Plain-language information for Oklahoma organizations trying to understand radio programming, licensing, repeaters, compatibility, coverage and system design.

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Start with the question you are trying to answer

These guides are intended to explain the practical side of commercial land-mobile radio systems without turning every question into a sales pitch.

FCC Licensing

What is an FCC Part 90 license?

Frequencies, station classes, emission designators and why the authorization matters.

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System Design

Repeater vs. simplex

Direct radio-to-radio communication compared with repeater-assisted coverage.

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Technology

Analog vs. digital radio

Compatibility, features and planning a practical migration.

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More guides coming

Future topics can include CTCSS and DCS, SWR, narrowbanding, radio coverage, NXDN, DMR, encryption, repeater maintenance, and what information a service shop needs before programming a fleet.