![]() However, when flying over the oceans, VHF comms are not really an option. VHF radios are great when flying over areas where there are regular radio towers to send and receive signals. Read more: How pilots operate cargo flights on passenger aircraft HF radios How it works When ready to talk on the frequency, we press one of the three push-to-talk buttons in our seat area and this transmits what we say. All we need to do is hit the XFR button and we will be back on the previous frequency. Instead of trying to remember the frequency on which we were talking to the previous ATC unit, the TCP has already saved it for us. This is particularly useful in the event that we are unable to make contact with the new ATC unit - a fairly common event. ![]() However, instead of the previous frequency (123.45 in the photo) disappearing from view, it flips across to the SBY column. For example, if ATC (on VHF-L) asks us to change to another ATC frequency on 133.65 MHz, we'd type "13365" on the number keys and press the first key-select button on the left-hand side.įirstly, the active VHF-L frequency changes to 133.65 as requested. To tune one of the radios to the desired frequency, we simply type in the numerical part of the frequency using the number keys and hit the key-select button adjacent to where we want the frequency to go. The tuning and control panel on the 787 Dreamliner. The TCP gives us two options for each radio - "active" for the frequency we wish to receive and transmit on and "standby" for a frequency that we would like to have ready to use at the push of a single button. VHF-L is used primarily for communications with the active ATC frequency, VHF-C for our datalink and VHF-R to keep a listening watch on the emergency frequency, 12.5. On the 787, the three VHF radios are identified as "VHF left," "VHF center" and "VHF right." The tuning and control panel (TCP) is - unsurprisingly - used to tune and control all three VHF radios. Not only does this give us backups in case of a failure, but it also allows us to use to a number of different frequencies at the same time. ![]() Most commercial aircraft will have three separate VHF radios. Read more: The challenges for pilots when landing at hot and high airports How pilots use it The Points Guy will not share or sell your email. I would like to subscribe to The Points Guy newsletters and special email promotions.
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