The Orion comes with a standard 2400 hertz roofing filter for SSB and a
standard 1000 hertz roofing filter for CW.
Carl Moreschi N4PY
121 Little Bell Drive
Hays, NC 28635
www.n4py.com
----- Original Message -----
From: <Rsoifer@aol.com>
To: <tentec@contesting.com>
Sent: Monday, November 22, 2010 2:06 PM
Subject: Re: [TenTec] Re 02 2.0444A questions
> Barry,
>
> Most of the time I'd agree with you, but as Jack described his situation,
> a
> roofing filter narrower than 6 kHz (be it 2.4 or 1.8) might help. For CW,
> I generally use 300 Hz, except on 160 where a wide roofing filter helps
> the DSP NR (as long as there isn't too much strong local activity).
>
> 73 Ray W2RS
>
>
>
>
> In a message dated 11/22/2010 6:57:48 P.M. GMT Standard Time,
> barry.n1eu@gmail.com writes:
>
> For ssb, the dsp filtering will be sufficient 99% of the time. If you're
> a
> somewhat serious ssb contester, pop a 1.8Khz filter in - otherwise, don't
> bother. Narrow roofing filters potentially help much more with cw.
>
> Barry N1EU
>
> On Mon, Nov 22, 2010 at 6:32 PM, John Molenda
> <cdistflatfoot@gmail.com>wrote:
>
>> Hi Ray , I have no optional roofing filters in my Orion II but have
>> sometimes wished for them . what filter would be my first and 2nd
>> choice to load up on ssb . I work ssb 75 percent of the time and am
>> just looking to narrow things up when needed . thanks John
>>
>> On 11/22/2010 1:10 PM, Rsoifer@aol.com wrote:
>> > Jack,
>> >
>> > I'm not sure these are the best settings either, but here's what I
> do.
>> To
>> > me, AGC Slope works best at 1:10 so I leave it there. On SSB, my
> front
>> > panel AGC button is set to Prog, which translates to Hang 0, Decay 10
>> dB/s
>> > and Threshold 1.00 uV. On the Filtr menu, all of the optional
>> > roofing
>> > filters (I have them all too) are enabled and Xtal filter is set to
> Auto.
>> With
>> > the DSP filter set to 2750, that would auto-select the 6 kHz roofing
>> filter,
>> > which may be your problem. If you set the DSP filter to 2400, that
>> should
>> > auto-select the 2.4 kHz roofing filter instead.
>> >
>> > I generally use the 6 kHz roofing filter for 160-meter CW (tnx, Bob
> K8IA,
>> > for that tip) but 2.4 kHz for SSB.
>> >
>> > Hope this helps.
>> >
>> > 73 Ray
>> >
>> >
>> > In a message dated 11/22/2010 5:52:19 P.M. GMT Standard Time,
>> > Thomas.Emerson.Jr@morganstanleysmithbarney.com writes:
>> >
>> >
>> >
>> > Hey Ray,
>> > Not sure how well this is going to work. I'm at work now, just
> checking
>> > for replies via the archives on this work station.
>> > OK, here's your answers. I have all the filters installed. It does
>> > not
>> do
>> > it on cw. It mostly occurs on 75m, at night, when lots of strong
> signals
>> > and QRM are around. And it's not like it's happening constantly, just
>> > occasional popping in the audio, if very strong signals are on
> frequency
>> or nearby.
>> > I usually keep the filter on ssb set at 2750 hz. I'm thinking maybe
>> > I
>> need
>> > to cut it below 2400, and let that roofing filter kick in. Will try it
>> > tonight.
>> > And the hardware nb is off. Using nr helps, and moving the agc slope
>> from
>> > flat to one of the other 2 settings eliminates it. But I prefer to
> keep
>> > agc slope at the flat setting, so I'm hoping someone else has
>> experienced
>> > this and found a solution other than the agc slope adjustment.
>> > I would think that adjusting the agc menu settings (decay, hang,
>> > threshold) would do it, but I haven't found the right combo yet.
>> > Jack W4TJE
>> >
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