Wire radio problem

I was building a giant billboard with numbers using 7 Segment Display, and i made 10 radios, each one outputting 7 values corresponding to their channel (channels were 0 to 9), and 4 (i used four 7 segment displays) more radios that serve purpose as receivers. Unluckily, when more than one radio was using the same channel, the numbers just didn’t work and weren’t displayed at all. Is there any possibility to fix this, or maybe something else to result in same effect (i could change number on display with just up and down button)?

Okay, no more help needed. I discovered “7 segment decoder” that removed the need for tons of equipment and that many values.

You tried wiring a 7 seg display without a decoder?