Moneer  Ali Lilo, Abidulkarim  K.I. Yasari, 
    Empirically Approach for Determining the Appropriate of
Antenna Heights in Greenhouse Environments,
    Journal of Engineering and Applied Sciences,
    Volume 13,Issue 18,
    2018,
    Pages 7555-7559,
    ISSN 1816-949x,
    jeasci.2018.7555.7559,
    (https://makhillpublications.co/view-article.php?doi=jeasci.2018.7555.7559)
    Abstract: This research shows the best heights of transceivers antenna based on empirical measurements
carryout in mango greenhouse environment. In contrast to the theory which states that the path loss decreases
with increasing the height of the antennas, real environments containing many of the terrain and objects that
impede signal path. Parts of trees have significant effects on the signal strength. Therefore, this study shows
the effect of each tree parts (such as trunk, foliage and tree canopy) on the signal to be choosing the
appropriate part to put antennas at it.
    Keywords: Transceivers;antenna;empirical measurements;signal strength;significant effects;trunk