[Boatanchors] Modern AM Modulation techniques

[Sheldon Daitch]

I don't think there is a modern AM MW transmitter in the broadcast world that uses the typical Class B audio modulator with a Class C RF amplifier anymore, well, not many produced in the last 10-15 years or so were built that way.

Most of the modern MW broadcast band transmitters are solid state and even at the higher powers found in HF broadcasting, even with the tube RF amplifiers, many of those transmitters now have solid state modulation sections.  

The PEP to carrier power ratio still applies, just the way the transmitters work are different.

73
Sheldon




-----Original Message-----
From: boatanchors-bounces at mailman.qth.net [mailto:boatanchors-bounces at mailman.qth.net] On Behalf Of D C _Mac_ Macdonald
Sent: Thursday, October 01, 2015 11:05 PM
To: boatanchors at mailman.qth.net
Subject: Re: [Boatanchors] 813 grid to filament short

If you are talking about full carrier, AM modulated transmitters, remember that the modulating power (generated in a separate audio amplifier with its own power supply) is in addition to the "carrier" power.  
 
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* 73 - Mac, K2GKK/5 *
* (Since 30 Nov 53) *
* k2gkk hotmail com *
* Oklahoma City, OK *
* USAF & FAA (Ret.) *
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