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| Name: | Customs Over The Horizon Enforcement Network (COTHEN) Signabroam ID: US-MIL-COTHEN |
|---|---|
| Operator | United States Customs and Border Protection |
| Frequencies | 5732, 7527, 8983 kHz, and others |
| Status | Active |
| Mode | USB |
| Use | Counter-narcotics operations, maritime and aerial surveillance |
| Description | COTHEN is a US customs HF network that supports law enforcement communications over long distances. Many HF enthusiasts include it in US government-related HF networks. |