• Get involved.
    We want your input!
    Apply for Membership and join the conversations about everything related to broadcasting.

    After we receive your registration, a moderator will review it. After your registration is approved, you will be permitted to post.
    If you use a disposable or false email address, your registration will be rejected.

    After your membership is approved, please take a minute to tell us a little bit about yourself.
    https://www.radiodiscussions.com/forums/introduce-yourself.1088/

    Thanks in advance and have fun!
    RadioDiscussions Administrators

What's the farthest from a radio tower you heard "mirroring signals" or harmonics of a FM/AM station?

Like many of the directional antennas authorized before 1941 when they changed frequencies under NARBA, the electrical spacings changed, usually increasing. In this case, the electrical spacing of the second tower went from 200 to 204 degrees. The electrical height of the second tower also increased from 90 to 91.9 degrees. Similar changes happened when the oldest authorized Directional Antennas in Michigan changed frequencies in 1941. WKZO 590 didn't change frequencies, so it was an exception. All the other old DAs were replaced in the late 1990s to 2000s, when they were authorized with high power. The next oldest were authorized after World War II. Others moved from Local Channels to Regional or Clear Channels after World War II.
 
Last edited:
Back
Top Bottom