On Thu, Mar 6, 2008 at 9:37 AM, kenw2dtc <[EMAIL PROTECTED]> wrote: > "BTW, I tuned the amp for exactly 1500 watts output, then reduced the drive > to exactly 25 watts without re-tuning the amplifier" > > Actually the best way is to tune for 1500 watts out and reduce the drive > until the output is 375 watts under carrier conditions. Also if you have > one of those male voices that that will peak more in one direction than the > other (if the audio is phased correctly) you must also de-rate the output > power even more. Naturally, a scope and an audio generator is the preferred > way to tune up a linear under AM conditions. > 73, > Ken W2DTC
You're right Ken. I think I used 25 watts as a good figure, however 544 watts of carrier should modulate to over 2100 watts with a pure sine wave. I may try it again later and reduce the drive level to the point where the carrier output reaches 375 to see the difference. I suspect if anything the eff. will drop even more... Thanks. Brian / wa5am ______________________________________________________________ Our Main Website: http://www.amfone.net AMRadio mailing list Searchable Archives: http://www.mail-archive.com/[email protected]/ List Rules (must read!): http://w5ami.net/amradiofaq.html List Home: http://mailman.qth.net/mailman/listinfo/amradio Help: http://mailman.qth.net/mmfaq.html Post: mailto:[email protected] To unsubscribe, send an email to [EMAIL PROTECTED] with the word unsubscribe in the message body.
