User's Manual

1. Description

The AMP2440P is a bi-directional amplifier designed for extending the range of 2.4 GHz

wireless LAN cards. The Model AMP2440P amplifier is intended only for use with the YDI

Model WL2400-PCM and the WL2400-ISA 2.4 GHz Direct Sequence Spread Spectrum

Wireless LAN cards. The units provide transmit power amplification as well as receive signal

gain. The amplifier is installed right at the antenna’s feed point, providing maximum

effectiveness of transmit power. This has the effect of compensating for signal loss in the

transmitter cable to the antenna. Likewise, the Low Noise Amplifier (LNA) in the AMP2440P

boosts the receive signal right at the antenna prior to experiencing the loss in the transmission

cable to the radio. This gain also overcomes the losses in the transmission cable between the

amplifier and the radio. In fact, use of the amp will actually increase the receiver sensitivity by

a few dB! The ultimate result is the best possible noise figure and maximum receiver

sensitivity.

The amplifier is completely weatherproof and can be bolted to the antenna mast or tower leg

using the U-bolt included. The connectors face down so that gravity will drain all water away

from the amplifier enclosure. This will prevent water from settling on the face of the unit.

Likewise, since the LEDs are also facing downward they can be checked for operation from

the bottom of the mast.

DC Power to the amplifier is supplied through the transmission cable, using an indoor power

supply and DC Injector. The amplifier unit also contains its own integral lightning protection

and DC surge protection. Likewise, the DC Power Injector connected to the WLAN card offers

built-in lightening if properly grounded.

Full output power of 250 mW is achieved with only 20 mW (+10 dBm) input to the amplifier.

2. Amplifier Features

• Transmit input levels from 3mW to 100mW

• Up to 15dB transmitter power gain

• 18dB receive gain

• Low Noise Preamp

• Weatherproof Cast Aluminum Case that is Mast Mountable

• Mounting hardware that will accommodate mast diameters from 3/4” thru 3”

• Polyurethane gasket for watertight seal on amplifier

• DC Power carried up through the transmission cable

• Power and Transmit LEDs on both the amp and the DC power injector

• Built-in Lightening and DC Surge Protection

• Heavy Duty “N” Connectors

• One Year Warranty

• Made in the U.S.A.