122

Direttiva 1 elem. VHF

Features:
Base station antenna, Directional
Wide band, Low-gain
Highly symmetrical radiation pattern in both planes (E and H)
Protection from static discharges DC-ground
Made of anodized aluminium alloy
Stacked and bayed array for more gain
P/N 2113301/140    WD 140-N
P/N 2113301/155    WD 155-N
 
Electrical Data
Type: Half wave dipole
Frequency range:
 WD 140-N: 140-160 MHz
 WD 155-N: 155-175 MHz
Impedance: 50Ω unbalanced
Radiation (H-plane): beamwidth at -3 dB =
 WD 140-N: 245° at center freq.
 WD 155-N: 245° at center freq.
Radiation (E-plane): beamwidth at -3 dB =
 WD 140-N: 80° at center freq.
 WD 155-N: 85° at center freq.
Radiation angle: 0°
Front to back ratio: ≥ 5 dB
Polarization: linear vertical
Gain: 4 dBi
SWR in bandwidth: ≤ 1.5:1
Max. power: 200 Watts (CW) at 30° C
Feed system / position: RG303 teflon coax with balun / inside boom
Connector: N-female with rubber protection cap
   
Mechanical Data
Materials: Anodized 6063-T5 Aluminium, EPDM rubber, thermoplastic UV stabilized, Chromed brass
Wind load / resistance: 77 N at 150 Km/h / 200 Km/h
Wind surface: 0.059 m²
Dimensions (approx.):
 WD 140-N: 730 x 915 mm
 WD 155-N: 730 x 835 mm
Weight (approx.):
 WD 140-N: 1390 gr
 WD 155-N: 1340 gr
Tourning radius: 600 mm
Operating temperature: -40° C to +60° C
Mounting mast: Ø 35-52 mm