Reply by Jim, WD5JKO: John, and Group,
Your PEP definition agrees with references from other sources. My math is a little weak, but doesn't this suggest that the 375 watt carrier limit we arbitrarily impose on ourselves is a low ball value, and with the definition below can't we run more carrier at 100% modulation and still meet the 1500 watt PEP output limitation? I seem to recall that Don, K4KYV had some pretty persuasive arguments countering the presumption we adopted years ago. This was back when the 1000W DC input "Grandfather Rule" was expiring for AM. http://www.its.bldrdoc.gov/fs-1037/dir-027/_3903.htm peak envelope power (of a radio transmitter) [PEP, pX, PX]: The average power supplied to the antenna transmission line by a transmitter during one radio frequency cycle at the crest of the modulation envelope taken under normal operating conditions. [NTIA] [RR] (188) http://www.vk1od.net/VSWR/W4.htm Peak Envelope Power 'pX' (s1.157) means the average power supplied to the antenna transmission line by a transmitter during one radiofrequency cycle at the crest of the modulation envelope taken under normal operating conditions. John, WA5BXO said: For PEP it should read: "Well, PEP is defined as the AVERAGE power over at least one RF cycle at the most powerful point of the envelope." 73, Jim WD5JKO ______________________________________________________________ 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.
