You've got a splitter with an open port and your signal's getting bounces back at you. That's the VSWR creeping up. Screw this 75-ohm dummy load straight onto the unused F port and the impedance mismatch disappears. No daisy-chained adapters, no homemade tin-can fix. One small part, one clean termination, and your system stays stable. Takes about five seconds to install
| brand | JAYCAR |
| connector_type | F (F59) |
| impedance | 75 Ω |
| function | Passive dummy load / port termination |
| application | Unused splitter or amplifier ports |
| category | Electronics & Components > Cables & Connectors |