Hello nick, great question! Yes, this cable is compatible with Comcast cable.
The product description states 'indoor use'
Hello nick, Great question and Thank you for your interest in our 50 ft. Black RG6 Ground Coaxial Cable. This Ground Coaxial Cable is Not designed to be used in-wall, 73284 does not have a Fire Jacket on it. However we suggest our Pro Series Quad Shield line, 50ft. Cable is item number is 33532 or 87667. The Pro Series Quad Shield line is offered in 6ft., 15ft., 25ft., 50ft., and 100ft. Note: This product is backed by a limited lifetime warranty. If you have any further questions, we encourage you to respond or contact our Customer Support through phone or email. Thank you, Jasco Products Tech Support (Manufacturer)
Hello Newdisher, We would recommend the 87667 GE Quad Shield Coax Cable. The Quad Shield Coax maximizes transfer speeds 3Ghz digital cable, and the additional shielding protects against interference. If you have any further questions, please feel free to respond or contact us through phone or email. Thank you, Jasco Products Tech Support (Manufacturer)
Barry, the cable can send the signal no matter the length, the part that really matters is the signal strength. If the device that is sending the signal doesn’t send a strong enough signal then you will need to add boosters to keep the signal strength up. Jasco Products Tech Support(Manufacturer)
Thank you for your recent inquiry with The Home Depot. Because this item is only available in select Home Depot stores, I believe the best advice would be to talk to one of our specialty department professionals at your local Home Depot store. For any other questions, please visit your nearest local Home Depot store or call us at HomeDepot.com Customer Service 800-430-3376. Thank you for shopping Home Depot.
Hi Ken, Thank you for your question. This is available on our website,you can locate the 100 FT equivalent (GE Model 73286) using the following information in your search products box at the top of the page: Model # 73286 Internet # 202698963 Store SKU # 281345”