Antennas are crafted using iron and Redstone, while transmitter blocks are crafted using antennas and Redstone blocks.
When an antenna receives a Redstone signal, all antennas that are in range and have the same name also receive the signal.
This is ideal for large circuits and automatic mob farms. They are also good for multiplayer servers.
Range:
Antennas normally send signals up to 10 blocks away.
This range can be increased by putting them on pyramids made of transmitter blocks, similar to a beacon.
Depending on the layers of the pyramid, the range becomes 100, 1000, 10000, or even 100000 blocks away. Antennas in unloaded chunks are updated when the chunk is loaded.
Name:
Only antennas with identical names can transmit signals to each other.
Antennas are renamed using anvils.
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