This banded antenna is for intercepting of wireless communications. It is mounted on an N-type male connector base, with a spring for shock absorption and flexibility. A glass-fibre tube contains the antenna RF board. The array covers the GSM900, PCS, UMTS/3G and WLAN bands. Full specification coverage starts at 850 MHz, but there will be reduced performance down to 500 MHz. A 2-stack array of multiband dipoles is used to provide gain at these frequencies, with a small down tilt to improve close-in coverage The lowest feed point is elevated about 500 mm from the base of the antenna, allowing the signal to be radiated over the user’s head. This reduces absorbed power and increases field strength at the target.
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Frequency range: Band A | 850 - 960 MHz |
Frequency range: Band B | 1700 - 2500 MHz |
Gain | 3 - 4 dBi typical (in band) |
Azimuth pattern | Omni |
Elevation pattern | Narrow beam |
Polarisation | Vertical |
Nominal input impedance | 50 O |
VSWR | < 2.5:1 |
Power handling | 100W CW |
Connector | N-type male at base |
Groundplane requirements | Groundplane independent |
Dimensions (l x d) | 650 mm x 35 mm |
Total mass | 0.4 kg |
Mounting | On N-type connector at base |
Colour | Black |