| Number | Title | Status | Office | Date |
|---|---|---|---|---|
| 90-50D |
Requirements for 760-Channel VHF Radio for Aeronautical Operations
Encourages aircraft owners to upgrade their air-ground radio communication systems. Describes and upgrades civil air traffic control frequencies in the very high frequency (118.000 to 136.975 MHz) band. |
Active | ASR-520 | 1992-04-09 |
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