A repeatable channel plan starts with actual frequencies and enough separation for every transmitter at the site.

Choosing analog FPV channels: bands, channels and interference

Two analog FPV transmitters can interfere even when their channel names differ. A band is a group of assignments; the useful planning value is the actual center frequency and occupied spectrum of each signal.

Read the frequency table

Use the table for the specific transmitter and receiver. The same letter or number may denote a different frequency on another device. Check that the antenna supports the selected frequency and that its use follows applicable local rules.

Leave usable separation

Analog video occupies more than a single mathematical frequency. Nearby signals, harmonics, receiver overload and high-power equipment can affect other channels. Necessary spacing depends on filters, modulation, power, antenna isolation and local RF noise. For a group of aircraft, label channel assignments before powering all transmitters.

The number of selectable channel names does not equal the number of simultaneous links a site can support. Nominally different channels can overlap in practice, especially near high-power transmitters.

Verify at the site

Scan the band where the system will operate. Test one transmitter at a time and then the group. If a picture degrades, check actual frequencies, antennas and physical isolation before increasing power. Log the arrangement and observations so it can be reproduced.

A channel plan is a site-specific compatibility check, not merely a list of unused names.