If I have multiple dongles (networks) I'd only be able to test the network where I had my wireless Tx attached, or the network where I plugged the cat5 into... right?
I've got a lot to read up on regarding the DLA wireless solution.
For wireless, the tester has a universe selector (universes 1,2,3). For wired, simply disconnect the cable from your dongle and plug in the tester. One of the important points about making this device portable is it allows you to go outside and plug it directly into your controllers with a short cord. Or for wireless mode, turn off your normal transmitter and walk around the yard completely wireless and test the different channels (or all channels at once) on any of the three universes.
This device is also excellent for bench testing new builds as well. Or even physical animation projects with the new servo controller. Tons of uses.
Might be a good idea to spend a little time reading through this thread. All the features are sprinkled throughout. I will make an effort very soon to list the features and the different ways this can be used depending on your layout.
Dave