[Elecraft] K3s transmit bandwidth adjustment?

[Michael Blake]

Using normal SSB with the stock 2.7kHz. wide crystal filter is there any way to adjust the lower and upper bandwidth frequency ranges other than the TX EQ?

For example how would I adjust so that my 2.7 kHz. bandwidth was from 200Hz. to 2900Hz.?

It is easy to do on the receiver but I cannot figure out how to do this on the transmitter. 

73 - Mike - K9JRI