diff --git a/tasks/01-bit-error-patterns.pdf b/tasks/01-bit-error-patterns.pdf
new file mode 100644
index 0000000..8f5dc0a
Binary files /dev/null and b/tasks/01-bit-error-patterns.pdf differ
diff --git a/tasks/02-slotted-aloha.pdf b/tasks/02-slotted-aloha.pdf
new file mode 100644
index 0000000..3a10b11
Binary files /dev/null and b/tasks/02-slotted-aloha.pdf differ
diff --git a/tasks/03-sdr-beacons.pdf b/tasks/03-sdr-beacons.pdf
new file mode 100644
index 0000000..a64e1f6
Binary files /dev/null and b/tasks/03-sdr-beacons.pdf differ