Electrical specifications |
KDA4-1826D12BT6 |
Frequency range (MHz) |
1880-1920 |
2010-2025 |
2555-2635 |
Polarization |
±45° |
Electrical Downtilt (°) |
6 |
Down-tilt Precision(°) |
±1 |
V.S.W.R. |
≤1.5 |
Isolation between Co-polarization Ports(dB) |
≥28 |
Isolation between Cross-polarization Ports(dB) |
≥30 |
Transmission from Any Column’s Port to Calibration Port(dB) |
-26±2 |
Max.Altitude Difference between Calibration Port and Each Radiation Port (dB) |
≤0.7 |
Max.Phase Difference between Calibration Port and Each Radiation Port (°) |
≤5 |
Single Column |
Horizontal -3dB Beamwidth (°) |
100±15 |
90±15 |
65±15 |
Gain(dBi) |
≥12 |
≥13 |
≥14.5 |
Cross Polar Radio (dB) |
≥18,(±60°≥10) |
Front-to-back Ratio(dB) |
≥23 |
≥25 |
Broadcasting
Pattern |
Horizontal Beamwidth(°) |
65±5 |
Vertical Beamwidth(°) |
≥12 |
≥11 |
≥9 |
Gain(dBi) |
≥12 |
≥13 |
≥14 |
Edge level at ±60°(dB) |
12±2 |
Cross Polar Radio (dB) |
≥22,(±60°≥10) |
Front-to-back Ratio(dB) |
≥28 |
First Upper Side Lobe Suppression (dB) |
≤-16 |
First zero level(dB) |
≥-18 |
Traffic Beam Pattern |
Gain for Operation Pattern at 0° Direction (dBi) |
≥18 |
≥19 |
≥20 |
Horizontal Beamwidth for Operation Pattern at 0° Direction (°) |
≤29 |
≤26 |
≤25 |
Horizontal Minor Electric Level for Operation Pattern at 0° Direction (dB) |
≤-12 |
±60° Direction Gain(dBi) |
≥15.5 |
≥16.5 |
Horizontal Beamwidth for Operation Pattern at ±60° Direction (°) |
≤32 |
≤23 |
Horizontal Minor Electric Level for Operation Pattern at ±60° Direction (dB) |
≤-5 |
≤-4 |
Cross Polar Radio for Operation Pattern at 0° Direction (Main-direction) |
≥22 |
Front-to-back Ratio for Operation Pattern at 0° Direction (dB) |
≥28 |