Til-Tek TA-4904-14-90 is a vertically polarized 90 degree sectoral antenna. The antenna consists of a printed dipole array enclosed in an aluminum base with a UV stabilized radome for superior weatherability. The antenna is at DC ground to aid in lightning protection. |
Specifications:
|
Electrical |
|
Frequency Range |
4940 - 4990 MHz |
|
Gain |
15.5 dBi typ. |
|
VSWR |
2:1 max |
|
Front to Back Ratio |
25 dB min. |
|
Polarization |
Vertical |
|
Power Rating |
5 Watts |
|
H-Plane Beamwidth |
90 degrees |
|
E-Plane Beamwidth |
5 degrees |
|
Cross Pol. Discrimination |
20 dB min |
|
Impedance |
50 ohms nominal |
|
Termination |
N-Female |
|
Mechanical |
|
Length |
26.5 in. (673 mm) |
|
Width |
6.25 in. (159 mm) |
|
Depth |
2.0 in. (51 mm) |
|
Weight (incl Clamps) |
6 lb. (2.72 kg) |
|
Rated Wind Velocity |
125 mph (200 km/h) |
|
Hor. Thrust at rated wind |
72 lb. (32.6 kg) |
|
Mechanical Tilt |
0+/-16 degrees |
|
Mounting (O.D.) |
0.75 - 2.0 in. (19 - 51 mm) |
|
Materials |
|
Radiating Elements |
Plated copper on PCB |
|
Reflector |
Irridited aluminum |
|
Radome |
Gray UV stabilized ASA |
|
Clamps |
Aluminum and HDG steel |
Radiation Patterns
| H-Plane |
E-Plane |
 |
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