RGB Spectrum's technical support team is here to help — troubleshooting, training, firmware, and documentation, with live chat and phone support when you need a person. Reach us using the options below. Fill out the Support Request form on this page or email: tech@rgb. com Call:. A splitter is a device used to split a cable signal between two or more devices. If you need to connect a modem and receiver to the same cable outlet, use the splitter and additional coaxial cable that's included in your Express Connect Kit. Make an appointment at your nearest Spectrum store to get the services and help you need. This usually takes about two to five minutes, but may take up to 20 minutes if our modem needs a firmware update.