# Blue

> A 13 kHz mobile channel from the North Atlantic (MACE'10), recorded over a 3-7 km range with a moving transmitter and a 12-element vertical array.

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LLMS index: [llms.txt](/llms.txt)

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* Experiment:
  * Location: 40.2N, 70.5W
  * Date recorded: June 2010
  * Center frequency: f<sub>c</sub> = 13 kHz
  * Bandwidth: B = 5 kHz
  * Symbol rate: R = 10<sup>7</sup>/2048 sym/s (approximately 4.9 ksym/s)
  * Distance: d = 3-7 km
  * Tx/Rx/water depth: d<sub>T</sub>/d<sub>R</sub>/d<sub>w</sub> = 30-60 m/50 m/100 m
  * Mobility: mobile (relative speed up to 1.5 m/s)
  * Receiving array: vertical, M = 12 elements, &#8467; = 12 cm spacing (numbered top to bottom)
* Parameters:
  * Sampling rate in delay: f<sub>s</sub> = 2R
  * Total delay coverage: up to 30 ms
  * Sampling rate in time: R/100 for the channel response, 2R for the phase/delay
  * Total time coverage: 1 minute