As said by AdrianHHH, you can find *.network file for each of available network profile at %ProgramFiles%\Microsoft Visual Studio XXX\Common7\IDE\Templates\LoadTest\Networks
e.g.IntracontinentalWAN.network. This file contains all settings for a network file like Latency, Packet Loss, Queue Management etc.
A good description of all properties are available here. There is not problem to edit an existing profile and to create a new one just for your specific
So, the intra-continental connection's properties are
<NetworkEmulationProfile name="Intra-continental WAN 1.5 Mbps" xmlns="http://microsoft.com/schemas/VisualStudio/TeamTest/2010">
<Emulation>
<VirtualChannel name="ICWAN-Channel2">
<FilterList />
<VirtualLink instances="1" name="link1">
<LinkRule dir="upstream">
<Bandwidth>
<Speed unit="kbps">1500</Speed>
<QueueManagement>
<NormalQueue>
<Size>100</Size>
<QueueMode>packet</QueueMode>
<DropType>DropTail</DropType>
</NormalQueue>
</QueueManagement>
</Bandwidth>
<Latency>
<Fixed>
<Time unit="msec">50</Time>
</Fixed>
</Latency>
</LinkRule>
<LinkRule dir="downstream">
<Bandwidth>
<Speed unit="kbps">1500</Speed>
<QueueManagement>
<NormalQueue>
<Size>100</Size>
<QueueMode>packet</QueueMode>
<DropType>DropTail</DropType>
</NormalQueue>
</QueueManagement>
</Bandwidth>
<Latency>
<Fixed>
<Time unit="msec">50</Time>
</Fixed>
</Latency>
</LinkRule>
</VirtualLink>
</VirtualChannel>
</Emulation>
</NetworkEmulationProfile>