diff --git a/doc/manual/figures/emulated-channel.dia b/doc/manual/figures/emulated-channel.dia
index 28bd3676d..29925344f 100644
Binary files a/doc/manual/figures/emulated-channel.dia and b/doc/manual/figures/emulated-channel.dia differ
diff --git a/doc/manual/figures/testbed.dia b/doc/manual/figures/testbed.dia
index f612cc5a7..9a85f14de 100644
Binary files a/doc/manual/figures/testbed.dia and b/doc/manual/figures/testbed.dia differ