|
Electrical specifications |
1857-1450D15BT3 |
|
Frequency range (MHz) |
1447-1467 |
|
Polarization |
¡À45¡ã |
|
Electrical Downtilt (¡ã) |
3 |
|
Down-tilt Precision(¡ã) |
¡À1 |
|
V.S.W.R. |
¡Ü1.5 |
|
Isolation between Co-polarization Ports(dB) |
¡Ý25 |
|
Isolation between Cross-polarization Ports(dB) |
¡Ý28 |
|
Transmission from Any Column¡¯s Port to Calibration Port(dB) |
-26¡À2 |
|
Max.Altitude Difference between Calibration Port and Each Radiation Port (dB) |
¡Ü0.7 |
|
Max.Phase Difference between Calibration Port and Each Radiation Port (¡ã) |
¡Ü5 |
|
Single Column |
Horizontal -3dB Beamwidth (¡ã) |
105¡À15 |
|
Gain(dBi) |
¡Ý14.5 |
|
Cross Polar Radio (dB) |
¡Ý18£¬(¡À60¡ã¡Ý10) |
|
Front-to-back Ratio(dB) |
¡Ý25 |
|
Broadcasting
Pattern |
Horizontal Beamwidth(¡ã) |
65¡À5 |
|
Vertical Beamwidth(¡ã) |
¡Ý7 |
|
Gain(dBi) |
¡Ý15.5 |
|
Edge level at ¡À60¡ã(dB) |
12¡À2 |
|
Cross Polar Radio (dB) |
¡Ý22£¬(¡À60¡ã¡Ý10) |
|
Front-to-back Ratio(dB) |
¡Ý28 |
|
First Upper Side Lobe Suppression (dB) |
¡Ü-15 |
|
First zero level(dB) |
¡Ý-18 |
|
Traffic Beam Pattern |
Gain for Operation Pattern at 0¡ã Direction (dBi) |
¡Ý19.5 |
|
Horizontal Beamwidth for Operation Pattern at 0¡ã Direction (¡ã) |
¡Ü29 |
|
Horizontal Minor Electric Level for Operation Pattern at 0¡ã Direction (dB) |
¡Ü-12 |
|
¡À60¡ã Direction Gain(dBi) |
¡Ý18.5 |
|
Horizontal Beamwidth for Operation Pattern at ¡À60¡ã Direction (¡ã) |
¡Ü34 |
|
Horizontal Minor Electric Level for Operation Pattern at ¡À60¡ã Direction (dB) |
¡Ü-5 |
|
Cross Polar Radio for Operation Pattern at 0¡ã Direction (Main-direction) |
¡Ý22 |
|
Front-to-back Ratio for Operation Pattern at 0¡ã Direction (dB) |
¡Ý28 |
