He wants to establish an Islamic radio station to call people to Allah; what do we advise him to do and to avoid?
Question

                I would like to establish an alternative radio station for Muslims. I also intend to do da'wah to both Muslims and non-Muslims through this station.

My idea so far is to have instrument-free nasheed and programs similar to Alafasy TV, Peace TV, and Huda TV.

Could you please advise me on what I can and cannot do?.
Praise be to Allah.
      Firstly: 

    We praise and thank Allah for enabling some of His slaves to 
    strive to serve and spread Islam, and we praise and thank Him for making 
    these people among Ahl al-Sunnah who follow the guidance of the Prophet 
    (blessings and peace of Allah be upon him), and who seek out what is 
    prescribed so that they may do it and who seek to recognise what is 
    innovated and contrary to Islam so that they may shun it. We ask Allah, may 
    He be exalted, to make our brother who is asking this question one of these 
    people. 

    Secondly: 

    The things that are permissible and prescribed and that may 
    be presented to both Muslims and non-Muslims in the radio station that you 
    want to establish are many. We will mention some of them to you, not as a 
    definitive list but by way of example, such as: 

    A.Programs about the Book of 
    Allah, such as:

    (i)Regular readings of the entire 
    Qur’aan

    (ii)Recitation of Qur’aan by 
    distinguished shaykhs

    (iii)Teaching tajweed in an easy 
    manner

    (iv)Broadcasting simple lessons of 
    tafseer

    B.Programs about the Sunnah of 
    the Prophet (blessings and peace of Allah be upon him), such as:

    (i)Regular readings from saheeh 
    books of Sunnah

    (ii)Simple commentaries on saheeh 
    hadeeths

    (iii)Warning against weak and 
    fabricated hadeeths

    C.Programs for children, such as:

    (i)Interviews with children who 
    have memorised the Qur’aan and Sunnah

    (ii)Welcoming questions from 
    children and giving suitable answers to them

    (iii)Interesting and enjoyable 
    stories

    D.Programs for women, such as

    (i)Teaching them fiqhi rulings 
    that apply to them

    (ii)Discussions about problems in 
    marriage and social life

    (iii)Biographies of female scholars 
    and daa‘iyahs, among the early generation (salaf) and contemporary women

    E.Programs for non-Muslims, such 
    as:

    (i)Stories of how and why people 
    converted to Islam

    (ii)The beauties of Islamic 
    religion, its rulings and teachings

    (iii)The eloquence and miraculous 
    nature of the Qur'aan

    F.There are some general matters 
    that may be appropriate, such as:

    (i)Broadcasts of prayer from the 
    Harams in Makkah and Madeenah

    (ii)Nasheeds, so long as they are 
    free of musical instruments, daffs and sound effects that resemble 
    instruments, and they should not be the main focus; rather they should be 
    used as intermissions or in links between educational programs.

    (iii)Beneficial academic contests

    (iv)Islamic fatwas from trustworthy 
    scholars

    (v)General lectures

    (vi)Structured lessons, such as 
    commentaries on books of fiqh and salafi ‘aqeedah

    (vii)Books and writers, in which 
    beneficial and useful books of Islamic or general knowledge may be 
    introduced, and the authors of those books may also be introduced

    (viii)You can seek the help of 
    trustworthy Islamic websites to publish various audio materials that are 
    already prepared, such as those on the Islam 
    Way website (http://english.islamway.com/). You could also contact channels 
    such as al-Majd, al-Hikmah, al-Shaykh al-‘Uthaymeen and others to supply you 
    with useful material that may be published in audio format. 

    Thirdly: 

    We advise you of things that are not permissible according to 
    Islam, such as the following: 

    1. Do not broadcast music or songs, including musical 
    interludes.

    2. The broadcast studio should be free of haraam mixing, 
    because there is no need for there to be any women in the workplace. If it 
    is thought that a woman is qualified to participate, she may do so by 
    telephone.

    3. You should avoid accepting advertisements for banks and 
    riba-based institutions, or for haraam products. 

    Finally: 

    We advise you to have a sharee‘ah committee composed of 
    specialists in Islamic knowledge who are known for the soundness of their 
    methodology, to advise you on programs and evaluate performance. This will 
    be better for you so that your da‘wah may be successful. We ask Allah to 
    help you and make things easy for you. 

    And Allah knows best.