> I have enough of a time keeping the BEASTs reined in at 1500W PEP. If I > set the microphone resting current at the specified in the TM at 40ma, > the darn thing WILL hit 2500W PEP. > > > Bob - N0DGN
Bob, what are you using to measure your PEP? All the stock BC-610's I ever worked on back in the 60's and 70's would just about make 100% on positive modulation peaks before flat-topping. This is inherent to the factory design because of the modulation transformer step-down turns ratio. If the 610 is run according to the TM's instructions (also saving the 250TH from premature failure), you run 2000v on the final at 250 milliamps for 500 watts DC input. This optimistically gives about 350 watts carrier out, based on the (optimistic) assumption of 70% efficiency. No way that stock BC-610 could even make 1500 watts peak power, let alone 2500 watts. That's why the FeeCee deleted the requirement that hams have "accurate instruments" to measure power when they changed over to the p.e.p. bullshi'ite. As stated in their own Report and Order, they knew it would be unrealistic to expect the average hammy hambone to be able to accurately measure power output with commonly-used instruments and typical hammy technical knowledge (and remember, that was during the era when the average amateur radio operator was still expected to actually know something about what was inside his "box" and how it worked). >From what I constantly hear over the air, to-day's hams seem about equally obsessed with two things: peak power and SWR. Both are way overblown beyond their actual significance. I suspect a lot of hams have an inflated idea of how much power they are actually running, using a typical el-cheapo hammy hambone wattmeter, combined with grand delusions of "Strap". Don k4kyv _______________________________________________________________ This message was typed using the DVORAK keyboard layout. http://www.mwbrooks.com/dvorak/ http://gigliwood.com/abcd/ ______________________________________________________________ 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 Post: [email protected] To unsubscribe, send an email to [email protected] with the word unsubscribe in the message body. This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
