The ZZ81 base antenna is an omnidirectional antenna designed for the 70-84 MHz band. The antenna is welded from aluminum alloy and protected by varnish. The antenna gain is 2 dBd, which corresponds to 4.15 dBi. For lightning protection, it is protected by a galvanic connection to the mast. The beam angle in the H plane is 180 °, the beam angle in the plane E is 100 °. ZZ series antennas are durable, reliable and used in hundreds of applications.
Antenna ZZ81 technical parameters
| Frequency band (MHz) | 70 – 84 MHz |
| Gain (dBd) | 2 |
| Radiation angle in the H – plane | 180 ° |
| Radiation angle in the E – plane | 10 ° |
| Anteroposterior ratio | 5 dB |
| Standing wave voltage factor | <1,5 |
| Nominal impedance | 50 Ohm |
| Polarization | vertical |
| Maximum performance | 1000 W |
| Dimensions | 1950 x 1300 x 80 mm |
| Connector | N |
| Weight2.3 | 4 kg |
| Wind resistance | 150 km / h |
Radiation diagrams of antenna ZZ81
