Deek wrote:

Heising is inefficient shunt modulation.

Very good, now you've learned what Heising modulation is and how it's
done (what components are used, etc.). Yes, Heising is inefficient, but
it has two huge pluses as well: 1) it can be "added" to almost any
transmitter with little modification (which can then be easily removed);
and 2) it can provide excellent fidelity. So while it may be
inefficient - it remains a very popular way to add AM to transmitters.

best regards...
--
randy guttery

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