[Elecraft] Roofing Filters, Data Modes, TXCO

[Simon Brown (HB9DRV)]

Am I right in thinking that I can run the radio in SSB (data mode), engage the 6 kHz roofing filter and have about 5 kHz of flat(-ish) response? This being so I assume I need a 6 kHz roofing filter for the main *and* the sub receiver?

My office come shack is well ventilated and the temperature sort of stable. Why would one buy the TXCO - what amateur operation would benefit from this other than a portable expedition to Death Valley?

Simon Brown, HB9DRV