At 02:26 PM 10/14/2004 -0400, you wrote: > >Ok, So you can make some kind of filters by placing a "T" in line with a piece of equipment and cut the Coax for 1/4 wavelength at the desired frequency.
<---As the others pointed out about 1/4 wavelengths lines (or odd multiples), they "invert". Don't forget 2 things however. 1/4 wavelength ELECTRICALLY, so you need to take velocity factor into account. Secondly, 1/4 stubs aren't particularly high-Q and you will probably end up with only around 30 to 40 Db notch, using a single one. You can, of course, combine several to deepen the notch but they will still not be very high-Q. Ken ------------------------------------------------------------------------------ President and CTO - Arcom Communications Makers of state-of-the-art repeater controllers and accessories. http://www.ah6le.net/arcom/index.html We now offer complete Kenwood TKR repeater packages! AH6LE/R - IRLP Node 3000 http://www.irlp.net Yahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ <*> To unsubscribe from this group, send an email to: [EMAIL PROTECTED] <*> Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
