Let?s say you need an inflight weather update to complete your trip with confidence. You may want to contact the nearest FSS. The communications box containing the Pontiac VOR frequency and Morse code identifier also tells you how to reach the controlling flight service station. Above the box is the frequency 122.1 followed by the letter R. The R stands for receive only, meaning that the appropriate flight service station can receive your transmission over 122.1 MHz but can?t respond on that same frequency. The FSS will respond to you on the frequency for the VOR, in this case 109.6 MHz. In brackets below the box is the word Kankakee, which tells you that when you transmit on 122.1, you will be talking to the Kankakee FSS.
To call the FSS, transmit on 122.1 MHz, saying who you are calling, identifying your aircraft, and telling the listener how you are receiving. ?Kankakee Radio, Cessna Three-One-Six-Zero-Foxtrot, receiving Pontiac VOR, 109.6. Over.? This tells the FSS specialists that they need to transmit to you on the Pontiac VOR frequency.
Make sure that before making the initial call, you?ve configured the audio control panel so that the navigation receiver tuned to the Kankakee VOR frequency is channeled to the speaker or headphones, and the volume is turned up so that you?ll hear the FSS.