The ZZ409 base antenna is a directional antenna designed for the UHF band 420-470 MHz. The antenna is welded from aluminum alloy and protected by varnish. The antenna gain is 9 dBd, which corresponds to 11 dBi. For lightning protection, it is protected by a galvanic connection to the mast. ZZ403 is resistant to icing and wind up to 150 km / h. The coaxial cable is connected with an N-type connector. The ZZ series antennas are durable and reliable and used in hundreds of applications.
Antenna ZZ409 technical parameters
| Frequency band (MHz) | 420-470 |
| Gain (dBd) | 9 |
| Radiation angle in the H – plane | 45 ° |
| Radiation angle in the E – plane | 35 ° |
| Anteroposterior ratio | 20 dB |
| Standing wave voltage factor | <1,5 |
| Nominal impedance | 50 Ohm |
| Polarization | vertical |
| Maximum performance | 1000 W |
| Dimensions | 920 x 760 x 80 mm |
| Connector | N |
| Mass | 1.4 kg |
| Wind resistance | 150 km / h |





