[TenTec] When is a filter roofing?

[Marijan Miletic, S56A]

>I guess that makes a filter in the audio out circuit a basement filter!

>Pat- K4BEH

On Fri, 6 Aug 2004 21:54:23 +0200 "Marijan Miletic, S56A" <s56a at bit.si>
writes:
> 5B4AGN> When is a roofing filter not a roofing filter?
>
> Roof should stand ABOVE the house (1,8 - 29,7 MHz).
>
> W4ZV> Orion is simply a modern version of the R4C design...
>
> With DSP (and DDS) added.Audio (0.02 - 20 kHz) lives in smaller house with
flat (LPF) roof while HF needs Inv. Vee shaped one!73 de Mario, S56A, N1YU