Jerry,
Uhm, that's high pass.? We are trying to kill a spur at 16-17mhz give or take
for 10M band and for 21mhz its a 24mhz spur.? I'll leave out 12M for the moment.
I ran one using ELSIE (tonne software free version) for 7th order high pass with
26mhz cutoff and its marginal.? Double tuned band pass with bandwidth of 1.5mhz
for 10m link input and output worked well.? Problem is can we tolerate 2-3db
insertion loss between the 4 pole low pass and the input to Q90.
Allison
