How to set them up when multiple sets of MARS 400S are used at the same location? Hollyland Tech July 20, 2021 09:59 Updated Up to three sets can be used in the same location Choose different frequency channels with the number difference between each two channels bigger than 2 Place each RX at least 0.5m away from the other Place all RX 1.7m above the ground Related articles How to set them up when multiple sets of MARS 300 PRO are used at the same location ? How to fast and easily identify the channels with interference? what kinds of MARS series products support 1 transmitters to 2 receiver? How to avoid the Fan noise? Why there is no video output when recording 4K ? Comments 0 comments Article is closed for comments.