From: ZOOM (email@example.com)
That is good to know. I didn't realize the DaTong was that effective.
----- Original Message -----
From: "James R. Duffey" <firstname.lastname@example.org>
To: "Low Power Amateur Radio Discussion" <qrp-l@Lehigh.EDU>
Sent: Wednesday, January 09, 2002 11:34 PM
Subject: Re: Audio Filters
> Zoom - Actually the DaTong is a very good analog filter that can hold its
> own against the new DSPs. It is a 5th order elliptic filter. The cut off
> slopes are steep, but not as steep as the DSPs. The stop band attentuation
> can be greater than the DSPs, at least at the notch frequencies.
> The DaTong has an automatic notch filter. That is an analog automatic
> filter. It appears to the ear as fast as the best DSP's notch filter. It
> only handles one carrier, but it still is good competition to the DSP.
> Don't sell the old analog technology short. In some cases, like the DaTong
> it is competitive to the DSPs. - Duffey
> James R. Duffey KK6MC/5
> Cedar Crest, NM DM65
Search QRP-L Archives
QRP-L Archive |
[ 1993 | 1994 | 1995 | 1996 | 1997 | 1998 | 1999 | 2000 | 2001 | 2002 ]
This archive was generated by hypermail 2b29 on Thu Feb 07 2002 - 08:03:45 CST