An outdoor antenna is ALWAYS better than an indoor antenna. Better coaxial cable is better than cheap stuff with minimal shield braid. Fewer connectors present less loss than lots of connectors and adapters. It all adds up.
There are many sources of computer-generated RF noise inside, not just your computer and Ethernet switch/router. Any TV or monitor has a CPU that emits RF noise. Your Roku box is a linux computer. Probably your modern refrigerator and range/oven, too. The list goes on and on.
If you get an SDR dongle and run SDRsharp you can see all the crapola that is polluting your local RF spectrum. A higher noise floor means any receiver will have trouble picking up weak signals, it doesn't matter how good the receiver is. Stack all the cards in your favor and you'll hear more.
There are many sources of computer-generated RF noise inside, not just your computer and Ethernet switch/router. Any TV or monitor has a CPU that emits RF noise. Your Roku box is a linux computer. Probably your modern refrigerator and range/oven, too. The list goes on and on.
If you get an SDR dongle and run SDRsharp you can see all the crapola that is polluting your local RF spectrum. A higher noise floor means any receiver will have trouble picking up weak signals, it doesn't matter how good the receiver is. Stack all the cards in your favor and you'll hear more.