| Model | Max. Range | Abilities | Notes |
| Pike Jaw (1960s/MG-200 Arktika) | 2 | Sub Search, Range Information, Bearing Information | Active/Passive sonar |
| Quad Loop RDF | 600 | Surface Search, Air Search, Bearing Information | Passive RWR/ESM/SIGINT |
| Snoop Plate | 65 | Surface Search, Range Information, Bearing Information | Radar |
| Stop Light | 100 | Surface Search, Air Search, Bearing Information, Classification | Passive RWR/ESM/SIGINT |
| Trout Cheek (19##/MG-15 Fenriks) | 6 | Sub Search, Bearing Information | Passive sonar |