[BC] Trapezoidal modulation display (was "Re: [BC] Inovonics model 520")

[DG19075@aol.com]

The Washington signal was WEAM 1390 Arlington VA. It usedf to roar into RI  
at night after semi-local WPLM Plymouth MA switched to night pattern. And on a  
related note, the BC5H I had at WBSM 1420 New Bedford MA in '83 would not 
track  the modulator plate voltage  down at night when going from 5 kW daytime to 
 1 kW night. I easily got  125%+ positive peaks. 2500 watts of audio on a  
kilowatt of carrier can be loud indeed.
 
Dave Gardiner  

WVCH 740/WNWR 1540

Philadelphia