These wideband broadcast antennas for Circular Polarization FM are very resistant and entirely made of Aluminium treated Surtec650 with PTFE insulator, they are demountable in several parts for facilitating the shipping. All the metal parts are electrically grounded to prevent possible problems arising from lightnings.
For a correct working they must be mounted on a support pole not too big and if possible without other antennas or metal structures nearby. This antenna is particularly suitable for city installations where multiple reflections (multipath) are an issue and circular polarization it drastically reduces the negative effects. To increase the gain and therefore make it more directive is available a rear reflector, and it also can be installed at a later time.
| AKG/77F | AKG/77S | |
|---|---|---|
| FREQ. RANGE (MHz) | 87.5 – 108 | 87.5 – 108 |
| IMPEDANCE (Ohm) | 50 | 50 |
| V.S.W.R. | < 1.25:1 | < 1.25:1 |
| GAIN (dBd) | — 1.5 | — 1.5 |
| CONNECTOR | 7/8 | 1+5/8 |
| MAX POWER (KW) | 5 | 8 |
| POLARIZATION | Circular | Circular |
| WEIGHT (Kg) | 13 | 13 |
| DIMENSIONS (cm) | 152×124×115 | 152×124×115 |
