The FCC has greatly streamlined the approval process in recent years. The entire process can now be completed in less than 30 days. In fact, receivers no longer require certification — just a quick test at an approved lab through the Declaration of Conformity (DOC) process. Transmitter certification is almost as painless since many labs that are TCB certified are now allowed to issue certifications on behalf of the FCC. Linx maintains a close working relationship with Compatible Electronics Compatible Electronics, which extends excellent service and special pricing to Linx customers.