Al, Having to cover that band you should Notch out the paging transmitters. All preamps that I know of are broad band devices and that is likely why you got over loading. I would suggest a Notch cavity for each paging frequency in series with between your antenna line and the preamp/splitter. I really think that you don't want the headaches of having a preamp at the antenna. Good luck and MERRY CHRISTMAS AC0Y
--- In [email protected], "Al Wolfe" <[EMAIL PROTECTED]> wrote: > > Speaking of UHF preamps, does anyone have any experience/recommendations > for tower mounted preamps? I have a receiving only site at 425 feet AGL, > DB420 antenna, 7/8 line, that feeds five receivers at present. Tried an ARR > on the ground before the splitter but it seemed to overload from UHF paging > transmitters a mile away. The frequecies I need to receive cover 449 to 455 > mhz. with the pagers at 452 and 453. Also, 50 kw FM station on tower at > receive site. > In ages past I used a home-brew gasfet and just a 1/4 wave stub in front > of the gasfet and it worked very well. Then came the pagers. Have had some > luck with notch filters on the pagers. > I'm curious as to whether an Angle Linear or another preamp would > servive this kind of service. How do they fare with lightning? PITA to > change something 400 feet up in the air. Coaxial bypass? > > Merry Christmas, > Al, K9SI > 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/
