At 8/10/2009 09:07, you wrote: >Was just curious as to if folks have >gotten Notch cavities to work ok with a 600khz >split. Have 4 in Rx leg & 4 in TX leg. According >to the analyzer, each bank has a >90dB notch.
The big question is, what is the loss 600 kHz away from the notch? There are some notch-only duplexers like the DB-4048 that are made for 600 kHz spacing. Spec'd notch depth is only 80 dB which can be a bit short, especially for solid-state multiplied source TXs (as opposed to tube-type or PLL-sourced). Bob NO6B
