Matt The low band equipment that has noise blankers receive on a nearby frequency and use the impulse noise that it sees to reduce the noise on the channel if interest. They invert the signal from the nearbuy frequency and apply it to the channel of interest. This would apply to broadband noise only. It works somewhat to remove impulse noise such as ignition noise, lightning strike generated impulse noise, arcs from the power line and the like.
It might prove somewhat useful in your situation. I would not pent a lot of money on one. I would get the service manual for a low band radio that has a noise blanker and build one. 73 Glenn WB4UIV At 05:41 PM 05/05/05, you wrote: >My 50MHz repeater is troubled by a high noise level on the site its >operating from - my noise floor is around -100dBm!! > >The source of the noise is all the digital equipment in the other buildings >on the site. I have approached the owners of this equipment to try to get >them to screen their cabling but they aren't interested sadly. > >Has anyone ever used one of the MFJ-1025 noise cancelling type devices in >their receive path to get rid of this type of noise? > >I know the unit is only spec'ed up to 30MHz but I figured a mod to extend >that to 50MHz would not be too hard. > >Any thoughts or experience would be much appreciated before I part with my >£130 and find it's no good! > >Thanks in advance, > >Matt >G4RKY > > >__________________________________________________ >Do You Yahoo!? >Everything you'll ever need on one web page >from News and Sport to Email and Music Charts >http://uk.my.yahoo.com > > > > > >Yahoo! Groups Links > > > > 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/
