Ken, thanks for the input. So if I were to adjust the band pass can to have 3 db loss (it's at 0.5 db right now) and steeper skirts, it would raise the noise figure about 2.5 db as well.
That seemed like a good trick at first, but still raises the noise figure. Obviously lower noise figure is better, but is there some place where the trade off would be worth it? Maybe I'm not asking the question properly. > > >The question is how much trouble will be getting into by putting the > >6db attenuator on the input side of the preamp? Would it still be > >better to put it after the preamp even though it would add two > >adapters? > > <---You'd be much better placing the attentuator in the OUTPUT of the > preamp (between it and the receiver). Remember that every dB of loss > you place ahead of the preamp adds 1 dB of noise figure to the > receiver. So you'd be adding 6 dB to your overall receiving system if > you place the attentuator between the preamp and the duplexer > > Ken > -------------------------------------------------------------------- ---------- > President and CTO - Arcom Communications > Makers of the world famous RC210 Repeater Controller and accessories. > http://www.arcomcontrollers.com/ > Coming soon - the most advanced repeater controller EVER. > Authorized Dealers for Kenwood and Telewave and > we offer complete repeater packages! > AH6LE/R - IRLP Node 3000 > http://www.irlp.net >
