[Elecraft] Filter installing question

[DK5EW]

Hi all,
I have a small understanding problem in using filters.

I installed a additional SSB filter 2.1KHz/8pol on row 3. (1. is FM and 
2. is 2.7KHz).
I configured new 2.1KHz filter FL3_BW and set it with number 3 to 2.10, 
FL3_Freq to 0.00, FL3_GN to 0db, FL3_ON to YES

_What I do not understand:_
On menu FL_TX_SB is now FL2 so I TX now with FL2(2.7KHz) ? Do I have to 
switch there on FL3 to transmit with FL3 (2.1KHz) ?
Can I switch between filters in operating ? Is it then only in RX 
between 2.1KHz and 2.7KHz filter ?
And TX filter is always that one I configured in FLTX_SB menu ?

Thanks for reading !

-- 
best regards
Erwin/DK5EW




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