The only good filter is a cw one by Yaesu
The Yaesu SSB filter is a bit better. qRP ARCI has an article on them and the graph showed some tighter skirts but I found it wasn't worth $279 Canadian for it
The 2.7 Chinese one is too wide and I found it be useless on the 817 that had it
Maybe not the greatest contest radio but it's a great radio and I use mine everyday
John VE3IPS?
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John VE3IPS
Radio is a Lifestyle not a Hobby
Oprah added the ARRL Handbook to her list
John