[Central-Electronics] 200V transmit bandwidth

[Kihwal Lee]

Hi,
I finally managed to restore and align my 200V.  The unwanted sideband suppression is better than 40dB consistently, but I noticed that the transmit bandwidth is at least 4kc.  Is it normal?  The manual says 200-3500kc. Has anyone tweaked the filter module to make it narrower?  Although it is wide, I see the response is rather steep. I just want the cut-off frequency to be bit lower, like 3kHz.
73Kihwal, K9SUL