An ultrasonic apparatus including a plurality of channels, each includes a transmission channel configured to generate and output a transmission signal based on a synchronization signal; a transducer element configured to convert the transmission signal output from the transmission channel into an ultrasonic signal and output the ultrasonic signal; a transceiver switching circuit configured to attenuate and output the transmission signal output from the transmission channel, and to output a reception signal that returns after the ultrasonic signal is transmitted to an object and is reflected from the object; and a reception channel configured to receive the attenuated output transmission signal and the output reception signal, and to detect transmission waveform information based on the attenuated transmission signal. The ultrasonic apparatus may further include a controller configured to store reference waveform information according to a transmission condition, and to compare the detected transmission waveform information with the reference waveform information.