![Which antenna on an commercial airline airplane is used for the transponder (SSR)? - Aviation Stack Exchange Which antenna on an commercial airline airplane is used for the transponder (SSR)? - Aviation Stack Exchange](https://i.stack.imgur.com/kcieS.png)
Which antenna on an commercial airline airplane is used for the transponder (SSR)? - Aviation Stack Exchange
Are commercial aircraft still typically equipped with HF radio? If so, what do the antenna systems look like? - Quora
![Which antenna on an commercial airline airplane is used for the transponder (SSR)? - Aviation Stack Exchange Which antenna on an commercial airline airplane is used for the transponder (SSR)? - Aviation Stack Exchange](https://i.stack.imgur.com/nRhPu.jpg)
Which antenna on an commercial airline airplane is used for the transponder (SSR)? - Aviation Stack Exchange
![What radio frequency bands are associated with the long wire antennas, why do some aircraft have them and others don't? - Aviation Stack Exchange What radio frequency bands are associated with the long wire antennas, why do some aircraft have them and others don't? - Aviation Stack Exchange](https://i.stack.imgur.com/N633F.jpg)