Radio Silverback 6290 Khz Radio Silverback is on 6290 KHz at 1630 Utcwith SINPO 24333. Email-address radiosilverback@hotmail.com. Share this: Click to share on X (Opens in new window) X Click to share on Facebook (Opens in new window) Facebook Click to email a link to a friend (Opens in new window) Email Click to print (Opens in new window) Print Related