| 8619 |
| Keysight | 85027A | Directional Bridges | Directional Bridge, 10 MHz to 18 GHz |
| 8620 |
| Keysight | 85027B | Directional Bridges | Directional Bridge, 10 MHz to 26.5 GHz |
| 8621 |
| Keysight | 85027C | Directional Bridges | Directional Bridge, 10 MHz to 18 GHz |
| 8622 |
| Keysight | 85027D | Directional Bridges | Directional Bridge, 10 MHz to 50 GHz |
| 8623 |
| Keysight | 85027E | Directional Bridges | Directional Bridge, 10 MHz to 26.5 GHz |
| 8630 |
| Keysight | 86207A | Directional Bridges | RF Bridge, 75 Ohm, 300 kHz to 3 GHz |