The shortest RDM (Random Digit Message) message depends on the specific system used, but it would likely be a single digit, such as "1" or "0". These are the absolute minimums, as any shorter message wouldn't convey information. Keep in mind that the purpose of an RDM is not to convey a meaningful message, but rather to transmit a randomly selected digit for security or other technical applications. Therefore, meaningful brevity isn't a primary concern.
what is the shortest rdm message
less than a minute read
20-08-2025
