MFJ MFJ-1800 User Manual

INTRODUCTION

The MFJ-1800 is a 2.4 GHz 15dBi antenna that is perfect for strengthening 802.11b/g or
"WiFi" signals. This antenna will turn that wireless signal you can barely find into a
strong useful signal. The MFJ-1800 comes with three different sets of mounting holes:
one bottom threaded screw hole for mounting to a tripod, and two sets of mounting holes
so you can mount it onto a horizontal or vertical surface. Our WiFi antenna has 15 dBi of
gain and uses standard 'N' connectors.

MFJ-1800

2.4 GHz WiFi 15dBi Yagi Antenna

INSTALLATION

1. You will need a cable that fits your individual application. Since some wireless

network manufacturers do not use standard external antenna connectors, we have
provided a standard ‘N’ connector on the antenna in order for you to easily fit a cable to
your computer.

2. The MFJ-1800 WiFi Yagi Antenna is intended for applications protected from the
elements – out of the weather. It can be made weatherproof by mounting inside a 3-inch
PVC pipe.

3. Mount to a tripod using the ¼”-20 threaded hole provided. You could also mount to other
horizontal or vertical surfaces with mounting screws using the holes provided.

4. Connect the MFJ-1800 WiFi Yagi Antenna to your wireless card, and follow the wireless
card manufacturer’s instructions. You may need to adjust the position of the antenna to
achieve the maximum signal.