That is true for me as well PJ, But, the design or tuning of an AM rig is still more that taking a CW rig and plate modulating it, which is what I once thought in my younger days. The RF section must modulate linearly. If Plate modulation is used then basically the RF Voltage output should follow the Plate voltage and typically the plate current should follow the plate voltage. The plate efficiency should be the same value for all plate voltages within the modulation voltage range.
I'm just throwing some stuff around to get a discussion going. John, WA5BXO -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Patrick Jankowiak Sent: Monday, May 23, 2005 7:03 PM To: [email protected] Subject: [AMRadio] sweeping the audio on TX test The EQ for sale made me think of this: How many of us, when we tweek ye olde voice transmitter, sweep the entire audio spectrum (or as much as will fit through the iron) to check flatness of frequency response and audio distortion? To me, the audio part of the hobby is as important as the RF part. PJ ______________________________________________________________ AMRadio mailing list Home: http://mailman.qth.net/mailman/listinfo/amradio Help: http://mailman.qth.net/mmfaq.html Post: mailto:[email protected]
