You want to avoid the 250/500hz slots in the Orion because of the
extra preamp stage and measurably higher IMD. That's why many of us
in the know use the 1000hz slot for our narrow Orion cw roofing
filter.
Barry N1EU
On Wed, May 16, 2012 at 10:40 AM, Martin Sole <hs0zed@csloxinfo.com> wrote:
> Does it make a difference on the Orion 565 which slot you plug a filter in?
> I mean you can fix the crystal filter in the menu so you could have any
> fitted filter in all the time if you wanted. I guess the Omni VII doesn't
> have that menu choice.
>
> Martin, HS0ZED
>
>
> -----Original Message-----
> From: tentec-bounces@contesting.com [mailto:tentec-bounces@contesting.com]
> On Behalf Of Rick - DJ0IP / NJ0IP
> Sent: 16 May 2012 17:35
> To: 'Discussion of Ten-Tec Equipment'
> Subject: Re: [TenTec] CW Filters ???
>
> I won't take you up on that Barry, because you would win!
>
> Remember what we did with the original Orion (1)?
> We inserted a 600 Hz INRAD roofing filter in place of the 1kHz filter, and
> it worked just fine with the DSP from 600 Hz, all the way down to 50.
>
> James is already into serious contesting, but so far only on SSB.
> He is part of a BIG M2 contesting team in Michigan.
> He will soon be needing that 300 Hz filter!
>
> 73
> Rick, DJ0IP
>
>
> -----Original Message-----
> From: tentec-bounces@contesting.com [mailto:tentec-bounces@contesting.com]
> On Behalf Of Barry N1EU
> Sent: Wednesday, May 16, 2012 12:21 PM
> To: Discussion of Ten-Tec Equipment
> Subject: Re: [TenTec] CW Filters ???
>
> On Wed, May 16, 2012 at 5:53 AM, Rick - DJ0IP / NJ0IP <Rick@dj0ip.de> wrote:
>> Just an idea, but maybe you could plug it into the 500 Hz slot or tell the
> software that it is 500 Hz. That way it would be in the circuit as soon as
> the DSP is adjusted to 500 Hz or below.
>>
>
> Yes, that's exactly what you do - install the 300hz filter as if it's a
> 500hz filter, and it kicks in when dsp selectivity is set to 500hz.
> I'm willing to bet that the combination of 300hz filter and dsp at 400-500hz
> would yield outstanding results.
>
> Barry N1EU
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