AH-521, is a halo antenna of small size but high performance. Supports an RF level between 140 and 210 W. Covers bands used between 12 and 30 Mhz. le  20, 117, 15, 12 and 10 meters. With remote continuous tuning in a very short time, less than a second. Its high selectivity makes it behave as a filter for reception and transmission.
Price: 363.00€        Â
| Features | |
| Frequency range | Continuously 13800-30000 Mhz. |
| S.W.R. | Better than 1.5:1 |
| Power Max. | Among 140W to 210 W Freq |
| Gain | From -0.9 to -5.7 dBi as band |
| mechanical | |
| Measurements of loop | 79×63 cms |
| Total Measures | 98×63 cms |
| Gewicht | 4,5 kg |
| Wind resistance | 120 Km/h |
| Materials | Aluminum, copper, iron and PVC plastic |
| Diameter of the support | 40 mm |
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