Had these antenna on my WAP54G, but recently gave the WAP to a friend. They work as advertised.

The Linksys High Gain Antenna Kit saves wiring costs and helps to build corporate wireless infrastructure by driving stronger signals into distant corners and hard-to-reach areas. And it's perfect for covering large areas in warehouse environments, public spaces, wireless hotspots, and outdoor venues -- anywhere you need extra coverage for your wireless network.

Increase your range:Attach these high gain antennas to your Linksys Wireless Broadband Router or Access Point, and increase both the effective strength of the outgoing signals, and the receive sensitivity for incoming signals.

Improve reliability:The added signal strength and sensitivity also improves close-range communication reliability because every packet comes through "loud and clear", reducing retransmissions due to weak signal reception errors.

Easy installation:To install, just unscrew your current antennas, and attach the High Gain antennas in their place. There are no drivers to install, and no modifications to your setup are necessary.

Compatibility:This antenna kit is designed to work with the following Linksys Wireless-B and Wireless-G devices: WRT54GS, WRT54G, WAP54G, BEFW11S4 and WAP11.

Specifications:

Model Number: HGA7T.
Peak Gain: 7 dBi.
FrequencyRange: 2.4GHz ~ 2.5GHz.
Voltage Standing Wave Ratio (VSWR): 1.92 Max.
Polarization: Linear Vertical.
Direction: Omni-directional.
Impedance: 50 Ohms Nominal.
Connector: Reverse TNC.
Dimensions (W x H x D): 11.22" x 0.55" (285 mm x 14 mm).
Unit Weight: 1.48 oz. (0.04 kg).
Operating Temp.: -4oF to 149oF (-20oC to 65oC).
Storage Temp.: -22oF to 167oF (-30oC to 75oC).
Operating Humidity: 0% to 85% Non-Condensing.

Items included:

Two High Gain Antennas for TNC Connectors
One Antenna Stabilizer