Know Thy Audience
Emphasizes Need for Diversity” (radioworld.com, keyword
Interesting event. Good
to see positive developments such as low-power DAB trials. A key
issue for community media is measuring and understanding its
audience. Not many do that — both listeners and target audiences.
Developing programming, delivery formats and community-building
activities to remain relevant and indeed even grow its audience
in a fast-evolving media landscape.
Null News Is Good News
In response to “The
FCC Lays Out Its AM Plan,” Dec. 4:
Are there ever cases
where the deep null should be aimed a bit to one side of the
protected station to have the null optimized for where the listeners
are, as opposed to where the station is? The example might have
protected Station 1 with a unidirectional pattern aimed towards their
metro audience. So Station 2’s null should be aimed at the metro
audience, not at Station 1’s transmitter.
Fall River, Nova
Riddle Me This, Fellow
I was just
thinking about AM and how to maintain the “analogue” (using
old-school spelling) and adding a digital signal.
I starting thinking
back to when I had a Hallicrafters receiver next to my bed. My dad,
K0HMZ, had gotten it from my Uncle Kenny, who worked at
Hallicrafters. It wasn’t an SX-99 but the next model up, a silver
Anyway I started
playing around with the upper and lower sideband control on regular
AM stations, and noticed that in the upper mode, I was still
receiving the analog signal.
Could we modulate the
upper sideband analog, with regular programming, and modulate the
lower sideband with 140–160 kbps digital? Would a standard AM
receiver still operate as normal, and our new digital receiver
operate perfectly on the lower sideband alone?
Suppressing the carrier
might not be necessary.
What do you think?
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