Motorola, GE, Vega and many others have been doing it rather well for many years.
73 Gary K4FMX > -----Original Message----- > From: [email protected] [mailto:Repeater- > [EMAIL PROTECTED] On Behalf Of [EMAIL PROTECTED] > Sent: Tuesday, April 03, 2007 1:26 PM > To: [email protected] > Subject: Re: [Repeater-Builder] Re: Tone filter > > Hi Skipp, > > What's your satisfaction level with the Norcom notch? A spec of +/-0.1% > BW means only 3.5 Hz of BW at the -40 dB points at 1750 Hz. And that's > for a tunable product, so you'd have to tune it dead on to get just 40 > dB of notch. The users' generators would also have to be very accurate > to be in the center of the notch. > > 73, > Bob > ________________________________________________________________________ > AOL now offers free email to everyone. Find out more about what's free > from AOL at AOL.com. > > > > > > Yahoo! Groups Links > > >
