| Loại | Manufacturer |
|---|---|
| Trang web | https://www.arrl.org/ |
| Số điện thoại | +1 860-594-0200 |
| Địa chỉ | 225 Main Street Newington, CT 06111-1494 USA |
ARRL is the national membership association for Amateur Radio operators.The seed for Amateur Radio was planted in the 1890s when Guglielmo Marconi began his experiments in wireless telegraphy.