Calculation of the Specific Attenuation in Satellite Bands Due to the Rain in the City of Cartagena and its Importance in the Naval Field

  • Lorenzo Cardona Universidad Tecnológica de Bolívar, Cartagena, Colombia
  • William Cuadrado Escuela Naval de Cadetes “Almirante Padilla”, Cartagena, Colombia
Keywords: Rain attenuation, rain rate, satellite communications


This work studies the attenuation by rain that occurs in the Caribbean region, specifically, in high frequency bands, considering that modern communication systems make greater use of satellite bands. In this sense, the methodology of the recommendation ITU 838 was used to calculate the radio attenuation by rain in the city of Cartagena (Colombia), for the range of 1-100 GHz, and the data provided by the Center of Oceanographic and Hydrographic Research - CIOH were used as atmospheric information sources. As a result, the attenuation for the first quarter of the analyzed years was observed to be low (2.0x10-2 dB/km), growing in the following months until October (1.0x10-1 dB/km), when it decreases again. This information is particularly useful in the naval field, especially, in relation to the use of these frequencies for information exchange.


Download data is not yet available.

Author Biographies

Lorenzo Cardona, Universidad Tecnológica de Bolívar, Cartagena, Colombia

Facultad de Ingeniería Electrónica, Universidad Tecnológica de Bolívar. Cartagena, Colombia.

William Cuadrado, Escuela Naval de Cadetes “Almirante Padilla”, Cartagena, Colombia

Facultad de Ingeniería Naval, Escuela Naval de Cadetes “Almirante Padilla”. Cartagena, Colombia.


SALOUS, S. Radio propagation measurement and channel modelling, Chichester-England, John Wiley & Sons, 2013. 424 p. ISBN 1118502329, 9781118502327.

ZUBAIR, M., HAIDER, M., KHAN, S.A. & NASSIR, J. 2011. Atmospheric influences on satellite communications. Przeglad Elektrotechniczny 87 (5), 261-264.

GARVIN, M. B. Launching Latin America: International and Domestic Factors in National Space Programs. !esis of master's degree. Naval Postgraduate School. Monterey, California, 2014-12.

MANDEEP, J. S., Slant path rain attenuation comparison of prediction models for satellite applications in Malaysia, Journal of Geophysical Research. 2009, Vol. 114, pp.1-12.

NANADRA, A., GOVIL, J. y KAUR, H., Optimization of satellite link design, IEEE SoutheastCon 2008, Huntsville, AL, 2008, pp. 147-152.

HENRIQUEZ, L. O., DURANTE, C., 2007. Parámetro de radio atenuación troposférica por lluvia para el Estado Zulia en el rango de frecuencias de 0.4 Ghz y 60 Ghz, Télématique, Vol. 6, No. 1, pp.1-16.

KESTWAL, M. Ch., JOSHI, S., GARIA, L. S., Prediction of Rain Attenuation, and Impact of Rain in Wave Propagation at Microwave Frequency for Tropical Region. International Journal of Microwave Science and Technology, 2014, Vol. 2014, pp. 1-6.

OROZCO, I., DURANTE, C., 2012. Tropospheric radioattenuation forecast for different angles of elevation in the city of Mérida between 2011 and 2014. Télématique, Vol. 11, No. 1, pp.1-15.

PIMIENTA, C., DURANTE, C., 2006. Niveles de atenuación troposférica en el departamento de la Guajira, Télématique, Vol. 5, No. 2, 2006, pp. 95-109.UIT

Unión Internacional de Telecomunicaciones - UIT. Recomendación UIT-R P.838-3. Modelo de la atenuación específica debida a la lluvia para los métodos de predicción. 1992-1999- 2003-2005.

OZUOMBA, S., Kalu, C. & ONONIWU, G. 2015. Determination of the dominant fading and the effective fading for the rain zones in the ITU-R P.838-3 recommendation. European Journal of Mathematics and Computer Science. 2015, Vol. 2

CIOH. CIOH - OCEANOGRAFIA OPERACIONAL. 2020. [on line]. Available: [Accessed:January 12, 2018]

ALONGE, A. A. & AFULLO, T. J. Rainfall microstructures for microwave and millimeter wave link budget at tropical and subtropical sites, 2013 Africon, Pointe-Aux-Piments, 2013, pp. 1-5, doi: 10.1109/AFRCON.2013.6757852.

AJEWOLE, M. O., KOLAWOLE, L. B. & AJAYI, G. O., !eoretical study of the effect of different types of tropical rainfall on microwave and millimeter-wave propagation, in Radio Science, vol. 34, no. 5, pp. 1103-1124, Sept.- Oct. 1999, doi: 10.1029/1999RS900063.

CARDAMA, A., Antenas, 3rd ed. Barcelona: Universidad Politécnica de Cataluña, 2009, pp. 54-55.

How to Cite
Cardona, L., & Cuadrado, W. (2020). Calculation of the Specific Attenuation in Satellite Bands Due to the Rain in the City of Cartagena and its Importance in the Naval Field. Ciencia Y tecnología De Buques, 14(27), 39-53.
Scientific and Technological Research Articles