Citation II S2/Bravo (C550)
Flight Crew Commercial; Flight Crew Instrument; Flight Crew Multiengine
Flight Crew Last 90 Days 300; Flight Crew Total 1150; Flight Crew Type 200
Aircraft Equipment Problem Less Severe
Air Traffic Control Provided Assistance; General Maintenance Action
Aircraft
Upon taxi out the aircraft radios were working fine. I; (pilot not flying) spoke to Ground and Tower very clear and concise. We received clearance for takeoff and proceeded to 5;000 FT as assigned. When Tower told us to contact Departure; I tuned in the frequency to check in with Departure; and received no response. The Captain and I then tried numerous combinations between our Comm 1 and Comm 2. We tried talking back to Tower and a few other area frequencies that we looked up. After using CRM we both came to the conclusion to squawk 7600 on our transponder. While the Captain focused on flying the appropriate departure route as assigned; I continued to work with the radios and check all plugs and potential electrical issues. I was able to hear a vague voice clear us to 11;000 FT and direct our destination and that we were to respond with an IDENT. We picked up approach for a very short conversation that we were cleared to land through them on the Runway 13 at our destination but when Approach told us to try the Tower; we lost two way communications again. After we landed we proceeded to taxi via light gun signals to our FBO. After the aircraft was secured; the Captain and I reported the squawks regarding the two way radio failure to the aircraft manager. We then proceeded to call the Tower voluntarily and make sure everything was ok and that we were not trying to be contacted by Center; Approach; or anyone else.
CE550 First Officer experiences radio failure when attempting to contact Departure Control after takeoff. This was planned as a short flight and the crew elects to squawk 7600 and continue to destination.