[ARC5] Off subject, BFO / sideband understanding help.

[Waldo Magnuson]

   Besides maintaining the NDB at Deer Park, WA airport I at times “chase” NDBs just for entertainment and occasionally compete in contests.  I have in the past used my HRO-W and BC-453.  More recently a friend set me up with an iCom R-75 (1 Hz tuning steps) with a narrow band filter (7 Hz).  It works great but to use it one has to tune to either the USB or LSB where the ID exists. On the HRO I simply tune to the center of the carrier, turn on the BFO and read the ID.  I read and understand the ID information is contained in the sidebands.  I guess if the R-75 had a BFO I  could get the ID without tuning to the side bands (usually about +/- 1000 Hz or +/- 400 Hz (Canada)).  
   If someone could give me a short tutorial to better my understanding I would appreciate it.  Thanks.
Skip Magnuson 
Spokane, WA
<magnuson at mac.com>