What direct sampling digital receivers can offer are optimized bandpass
filtering ahead of the ADC. These are somewhat analogous to roofing filters.
The IC7300 lacks "dual watch" or multiple virtual receivers on the same
band. The low priced ANAN SDRs offer this feature ("Multi RX")
73, Barry N1EU
On Wed, Apr 27, 2016 at 7:21 AM, rick@dj0ip.de <Rick@dj0ip.de> wrote:
> Hi Gunner,
>
> Like the other Direct Conversion SDR radios, the 7300 does not have an
> Intermediate Frequency (IF).
> Roofing filters are inserted in the first IF... but when there is no IF,
> there is no place to use a roofing filter. That's why the missing roofing
> filter.
> None of the other SDR radios have roofing filters either.
>
> You won't find 2 receivers in any radio costing just $1300.
>
> 73 - Rick, DJ0IP
> (Nr. Frankfurt, Germany)
>
>
>
> -----Original Message-----
> From: TenTec [mailto:tentec-bounces@contesting.com] On Behalf Of
> gunnerjuulnyholm@me.com
> Sent: Wednesday, April 27, 2016 12:54 PM
> To: Discussion of Ten-Tec Equipment
> Subject: Re: [TenTec] IC7300
>
> Maybe I missed it, but the IC7300 lacks at least some roofing filters and
> a full size second receiver like the RS366. What a blessing it is to be
> able to operate on two frequencies on a busy band or at a pile-up!
> 🙏
>
> Gunner
> -----------------------------------------------
> Gunner Juul-Nyholm OZ6NF-5P5S
> Maglegårds Allé 93 B
> DK-2860 Søborg
>
> 40130044
>
> www.godepenge.dk
> www.positivemoney.org
>
>
>
>
>
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