It's American Naval frequencies.
2 seconds sound clip from Airwolf (1984) - Shadow of the Hawke (S1.E1) action military drama television series.
You can hear this line at 00:46:39.066 in the Blu-ray version of the TV Series.
Quote context
[...]
- Cute, cuddly, woolly little lambs.
- You know, anyone who would teach a dog to...
- Another fishing boat. 12 o'clock.
- Able to absorb 93 percent of the signal.
- It's American Naval frequencies.
- The radar is emanating from a Knox-class destroyer.
- Bring a Bullpup on the line.
- It's an American destroyer, Moffett.
- Bring a Bullpup on the line. (2)
- For God's sake, Moffett, they're Americans.
[...]