User 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.