yes, it will depend on physical characteristics of the water and strength of the signal. thus, a large antenna is required. read Prospects and Problems of Wireless Communication for Underwater Sensor Networks, Liu et al, 2008
Attenuation
Attenuation distortion is the distortion of an analog signal that occurs during transmission when the transmission medium does not have a flat frequency response across the bandwidth of the medium.
Attenuation occurs in all copper cable regardless of whether it is twisted or not. This is because the copper atoms actually 'resist" the electrical voltage being applied (a physics principle).
Attenuation
It is the loss of data from the coaxial cable during transmission .
Water affects the travel of radio frequency in terms of attenuation. For example, sea water has high attenuation, causing communication hardly possible.
Breast attenuation in a nuclear stress test refers to the reduced amount of radiation that reaches the heart due to absorption by breast tissue. This can affect the accuracy of the test results by making it difficult to visualize the heart adequately. Techniques such as prone imaging or adjusting camera angles may be used to minimize this effect.
There is no attenuation due to absorption, but attenuation will occur due to divergence (spreading out) of the wave.
Attenuation means the reduction of signal strength during transmission. If one is looking for information about attenuation, it can be found on the Wikipedia website.
The opposite of attenuation is amplification. Amplification involves increasing the strength or intensity of a signal, sound, or electrical current, while attenuation involves decreasing it.
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Water
A good value for dB attenuation depends on the specific application. In general, higher dB attenuation values indicate better noise reduction or signal loss. For example, a dB attenuation value of 20-30 dB is commonly seen in noise-canceling headphones, while 40-60 dB attenuation is typical for industrial ear protection.
what does low attenuation area mean in left kidney
longer cable lengths have greater signal attenuation
Acoustic impedance is the measurement that indicates how much sound pressure the vibration of molecules at a given frequency is generated. Attenuation refers to the gradual loss in intensity through a medium, such as light and sound in water.
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