| TDD | TT | N | FFFF | BW | CHS | XXXX |
| Dielectric Diplexer | Type BP = Bandpass BR = Band Reject (Notch) | Poles (sections) per channel | Center Frequency [MHz] | Bandwidth [MHz] | Channel Spacing [MHz] | Specific Code |
| Example: | TDD-BP-3-1933-35-80-C220 |
| T-CERAM dielectric diplexer BP = Band Pass 2 x 3 poles Center frequency = 1933 MHz Bandwidth = 35 MHz Channel spacing = 80 MHz C220 - individual product code |