The DSP code in the firmware is doing all the changing to accomplish this.
Very little is happeining electronically.
Carl Moreschi N4PY
121 Little Bell Drive
Bell Mountain
Hays, NC 28635
----- Original Message -----
From: "mcelmer1" <mcelmer1@netecin.net>
To: "Carl Moreschi" <n4py@arrl.net>; "Discussion of Ten-Tec Equipment"
<tentec@contesting.com>
Sent: Monday, January 22, 2007 10:50 PM
Subject: Re: [TenTec] ORION Display (horizontal line??)
> I opened up the BW to 6K then switched to PBT and adjusted that through
it's
> range. I can see and hear what is happening; however, what is happening
> eletronically?
> ----- Original Message -----
> From: "Carl Moreschi" <n4py@arrl.net>
> To: "Discussion of Ten-Tec Equipment" <tentec@contesting.com>
> Sent: Monday, January 22, 2007 8:19 PM
> Subject: Re: [TenTec] ORION Display (horizontal line??)
>
>
> > The horizontal lines just represent the maximum range the bandwidth
> > rectangles can move. The break in the line is just to separate the line
> > for
> > the main receiver side and the sub receiver side. If you move the band
> > width to 6000 hertz and then move PBT through its entire range, you will
> > see
> > what I mean.
> >
> > Carl Moreschi N4PY
> > 121 Little Bell Drive
> > Bell Mountain
> > Hays, NC 28635
> > ----- Original Message -----
> > From: "Richard Williams" <richardw@mho.com>
> > To: <w1ael@arrl.net>; "Discussion of Ten-Tec Equipment"
> > <tentec@contesting.com>
> > Sent: Monday, January 22, 2007 8:47 PM
> > Subject: Re: [TenTec] ORION Display (horizontal line??)
> >
> >
> >> Allen,
> >>
> >> The way I read Bernie's question, he is asking about the thicker solid
> > line
> >> that is directly above the spectrum display. There is a "break" (it
> >> becomes a thin line) in it just between the "0" and the next number
(.6,
> >> 1.2, 2.5, 5, or 10 - depending on the sweep range) to the left.
> >>
> >> I read it this way because Bernie says: "Immediately above the
spectrum
> >> sweep scope is a horizontal line on which the rectangles representing
the
> >> bandpasses for the main (left) and sub (right) receivers rest". The
> >> rectangles don't "rest" on the the horizontal line(s) above the filter
> >> bandwidth graphic; which you correctly defined in your response.
> >>
> >> Personally, I don't know what the break in the bar represents;
> > interesting
> >> question, do you happen to know the answer?
> >>
> >> Dick K8ZTT
> >>
> >>
> >> ----- Original Message -----
> >> From: "Allan H. Kaplan" <w1ael@arrl.net>
> >> To: <tentec@contesting.com>
> >> Sent: Monday, January 22, 2007 6:14 PM
> >> Subject: Re: [TenTec] ORION Display
> >>
> >>
> >> > The horizontal line above the filter bandwidth graphic represents the
> >> > bandwidth of the roofing filter in use at 9 MHz. The filter
bandwidth
> >> > graphically represents the ultimate selectivity implemented by the
> >> > BANDWIDTH control in the DSP IF and the (wider) roofing filter gets
> >> > selected automatically based on the BW control. Hope this helps. 73,
> >> > Allan, W1AEL in Sevierville, TN.
> >> >
> >> > ----- Original Message -----
> >> > From: <K5XS@aol.com>
> >> > To: <tentec@contesting.com>
> >> > Sent: Saturday, January 20, 2007 8:14 AM
> >> > Subject: [TenTec] O-2 Screen Lines
> >> >
> >> >
> >> >
> >> >> > This is truly fun. I am figuring out the radio and trying to
> > discover
> >> >> > every
> >> >> > little nook and cranny on it.
> >> >> >
> >> >> > One thing has me puzzled, and I can't find it in the manual.
> >> >> >
> >> >> > Immediately above the spectrum sweep scope is a horizontal line on
> >> >> > which
> >> >> > the
> >> >> > rectangles representing the bandpasses for the main (left) and sub
> >> >> > (right)
> >> >> > receivers rest. The line has a break in it, and it is decidedly
off
> >> >> > center
> >> >> > (to the lest a bit).
> >> >> >
> >> >> > Does that line represent something? Does the break represent
> >> >> > something?
> >> >> >
> >> >> > Thanks
> >> >> >
> >> >> > Bernie K5XS
> >> >
> >> > _______________________________________________
> >> > TenTec mailing list
> >> > TenTec@contesting.com
> >> > http://lists.contesting.com/mailman/listinfo/tentec
> >> >
> >>
> >>
> >> _______________________________________________
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> >
> > _______________________________________________
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> >
>
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