PCS Electronics AM xmtr as exciter?

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PCS Electronics AM xmtr as exciter?

Postby W3CRR » Tue Jul 05, 2005 9:35 am

Has anyone used a PCS Electronics AM Max II DSP transmitter http://www.pcs-electronics.com/en/produ ... ansmitters
as an exciter for a Class E amp?

Also, are there any "Class Eers" in the Washngton, DC area?

Many thanks and 73,

Craig
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Postby ke1gf » Tue Jul 05, 2005 11:57 am

I don't know anybody that has. Most people use their 100W rice-box in AM/CW split mode or maybe just as a driver mule. I personally designed my own synth and driver for my rig... Even my 1 Watt PW has it's own VFO too.

Class-E amplifiers in their native state are non-linear amps, so if you want to produce an AM signal you drive the transistors with a sine or trapazoidal waveform into saturation (switch mode) and then high-level modulate the amp with PWM, or some other form of Series or Shunt analog modulator...

I think there is a commerially produced Class-E "linear" amplifier for the ham bands that I saw in the back of QST, it uses (Envelope Elimination and Restoration) EER. It's a single band amp with plug-in modules... This isn't a native class-E amplifier, it has lots of magic wrapped around it to make it act as a linear. Really its more of a machine than a linear in a conventional sense .
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