[Elecraft] K3 Roofing filters

[Bruce Beford]

I know many users are happy with the 700 Hz roofing filter you guys have had
custom-made. However, I am wondering just how helpful it actually is,
compared to other, more standard roofing filter BWs. If a 700 Hz bandwidth
is "ideal for scanning", just how is a roofing filter needed when scanning?
By definition, when scanning, one is tuning across a band, looking for a
signal of interest. Is a medium-narrow roofing filter really helpful in this
case? Does it make scanning more productive than say, a 1 KHz filter?

I am not trying to be argumentative, just trying to understand how a roofing
filter of this width may be (more) useful (than other choices) in a radio
like the K3 with continuously variable final DSP filtering.

Thanks for any input,
Bruce
N1RX

>     In addition to the choices available from Elecraft and INRAD, WB2ART
> and I also offer a 700 Hz (wide CW) alternative.  IMHO 700 Hz fits really
> well between the INRAD 1.5 k Hz and 400 Hz filters and it's ideal for
> scanning...