[Elecraft] K3 Roofing filters

[Bill Frantz]

I think Paul had gotten the information he was asking about from 
others Bill and Don.

I don't see much use for the 6K filter since you can now use the 
13K FM filter for AM transmit. If you do a lot of AM transmit 
you will have a cleaner signal with the 6K filter. If you only 
do AM receive, you can use the 2.7K or 2.8K filter to receive on 
only one sideband and get usable performance when conditions 
need narrower roofing than provided by the 13K filter. Save your 
filter slots for hard SSB, CW and digital conditions where 
roofing can be a lifesaver.

Cheers - Bill, AE6JV

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