In a message dated 07/08/2002 7:36:50 PM Central Daylight Time,
AL7FS@arrl.net writes:
> Pete Burbank wrote:
> > An article by WB3JZO in Nov 1986 QST states that the filter CF was
> > actually 9.0015.
>
> 217 218 219 220
> Center Freq 9.000750 9.00150 9.000750 9.00150
> 6 db BW 500 1800 250 2400
> No. of poles 8 8 6 8
> Shape factor 2:1 1.8:1 2.4:1 1.7:1
> Ult Rej dB 90+ 90+ 85+ 90+
> Zin-Zout ohms 200 200 200 200
> Insertion loss 7.5 2.0 10.0 2.2
>
> per Ten-Tec Instruction Sheet Pt. No. 74089
>
> 73, Jim
> --
> Jim Larsen, AL7FS, Anchorage, Alaska
> (BP51cc) - 61.101 North, 149.824 West
> ex-WA0LPK AK-QRP#003 SOC#003 10-X-#12094
> mailto:al7fs@arrl.net - http://www.qsl.net/al7fs/
>
Bill K5BDZ
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