On Wed, 26 Oct 2011 13:59:08 -0700 (PDT), Ron wrote: >Not exactly sure about the dummy load, but the TR7 (actually all Drakes) put >out surprisingly low average power. On a W4 with a "peak hold" adapter, my >TR7 puts out about 160-180 watts. On averages it looks like about 40 watts.
That's because the ALC in the TR-7 is more like that of tube rigs, there is no compression. It's strictly peak limiting, so the average power reading pretty much depends on your voice characteristics when the radio is properly operated. It's also one reason why the TX audio tends to sound so GOOD. More recent rigs have taken to using the ALC as a form of speech compression, which is NOT a good thing. http://www.sm5bsz.com/dynrange/alc.htm 73 -Jim -- Ham Radio NU0C Lincoln, Nebraska, U.S.S.A. TR7/RV7/R7A/L7, TR6/RV6, T4XC/R4C/L4B, NCL2000, SB104A, R390A, GT550A/RV550A, HyGain 3750, IBM PS/2 - all vintage, all the time! "Give a man a URL, and he will learn for an hour; teach him to Google, and he will learn for a lifetime." HyGain 3750 User's Group - http://groups.yahoo.com/group/HyGain_3750/ http://incolor.inetnebr.com/jshorney http://www.nebraskaghosts.org _______________________________________________ Drakelist mailing list [email protected] http://mailman.zerobeat.net/mailman/listinfo/drakelist
