I'm not sure what the SCAF-1 is, but I have an original SuperScaf filter
here that I haven't used since the advent of DSP. I thought it was
excellent. It allows you to set both the high and low frequency limits
of the passed audio to create a bandpass filter. It worked
exceptionally well on CW. I was going to use it on my 736R, but have
decided to go with xverters on my Orion and get rid of the 736R.
73, Joe
Chuck Guenther wrote:
For a great all-purpose audio filter, the MFJ-784B tunable DSP filter is hard
to beat. This one can be tuned for very narrow (down to 30 Hz) bandwidths,
which can be centered around your favorite CW offset (pitch) frequency. It has
ten memories. I have five each CW filter bandwidths saved for 550 and 600 Hz
offsets, respectively. I use it with my Omni VI/Opt. 1. It can also be used
for SSB and data signals, and it has a variable noise reduction feature as
well. Since the filters are FIR (finite impulse response) there is no phase
distortion.
The drawback is that it costs more than the SCAF filter. It's worth
considering.
73 de Chuck NI0C
_______________________________________________
TenTec mailing list
TenTec@contesting.com
http://lists.contesting.com/mailman/listinfo/tentec
|