def getRadarProductNames(availableParms):
    """
     Get only the named idetifiers for NEXRAD3 products.

    Args:
            availableParms: Full list of radar parameters

    Returns:
            List of filtered parameters
    """
    productNames = []
    for p in list(availableParms):
        if len(p) > 3:
            productNames.append(p)

    return productNames