The next assembly is mounting the antenna.  For this operation two antenna are used with one radio card.  The radio card has 2 MMCX male slots available. Rather than putting in two identical antenna I using a mixture of  directional antenna and an omni directional antenna.

This give me a unique radiation pattern.  The direction antenna has  65 degree projection and the purpose is to cover a long distance between gateway and it neighbour node. The omni direction is design to mesh with clients and with other nodes with in its radiation pattern.

This principal has been not documented very well; however, it been tried by a number of people who have shown success.  I believe the first person who adopted this principal was a kid that had a link across a lake.  When the wind picked up the lake became choppy and the link was hard to maintain. The kid put a directional antenna on one of the radio cards and left the omni direction as is.  He also did the same on the other side of the lake.

Switching on antenna diversity he placed one direction antenna to listen while the other directional antenna across the lake to send, such TX RX setting. As the story goes he hasn't had a problem. (I just want to thank Lynn for educating me.)

In my scenario the antenna and radio cards can work in diversity mode; however, I will be running them as two antenna on the radio card with out diversity.

This assembly requires to drill three holes, one for the omni directional antenna, one for the directional antenna and the other for the power cord.  Next I screw in the backing plate before threading the pigtail and antenna in.

The omni antenna whole is drilled in the center of the unit. the antenna is placed in and screwed to the pigtail. This holes it in place.  Next seal the antenna on the outside by running clear silicon (waterproof) around the base of the antenna on the outside.  No connection is visible on the outside.

Install the second antenna on the outside of the lid. Measure and Drill four holes as shown. Four machine screws and nuts are used to hold it into place. Seal the edges of the antenna and around the screws.

Next drill a hole for the power cord and for the second pigtail.  This located at the bottom of the ODU. I add a nib around the whole to work as a drip for rain water.  I then thread power cable and pigtail through.  I put a stop on the power cord and mounted inside the box. The Pigtail does not get a stop.  I then seal the opening again with a clear silicon.

Then add a single power plug to the outdoor extension wire and and plug the power cord in. 

Note this unit contains a Ethernet over Power line rather than Power over Ethernet.  The device needs normal electricity as well as an ethernet connection from the motherboard to device.  In the same dwelling another connector is plug into the wall and the ethernet is either connected to LAN or PC.

Then attach the Pigtail to the radio card. Connect the N connectors to the Male to Male N connectors.

The power cable is a outdoor grade unit with industrial plugs.  The power cable is actually a long extension cord.  The idea is that any electrician can install rather than any antenna installer.  Either you can put a plug into or you can mounted to a switch. Nevertheless the options are yours to make!

Don't for get to test your unit out prior to installing it!

The assembly for this device is pretty unique in that it has two antennas on a single 200 mW 802.11b radio card with two antennas. It can act as either a gateway or repeater mode in either wired or wireless mode. 

Lesson learn first if you notice that the white directional antenna has been install upside down.  I forgot to switch that cover around.  Second the regular outdoor power cable is coming out of the side of the unit.  This should have been drilled on the bottom, as rain falls downward.  Also I forgot to tell you to put silicon around the power connection.