2M low-pass filter

 I'm putting together a 2m Fox (for Fox Hunting), and I needed a 2m low-pass filter.  I copied what was done here.

Measuring 

-.69dB at 145MHz.

-3.7dB at 174.2MHz

Knocking down the spikes

Before:

25.2@145MHz

-13db@292MHz

12db@433

-9.8@586MHz

2.3db @733MHz

-7@879MHz

After:

25.2@145MHz

-20db@433MHz

-20db @733MHz