[TenTec] Cooling the Orion

Sat May 8 11:59:38 EDT 2004

Thomas,

Maybe this will help some (I hope!):

Push the '80' mtr button,
Enter a freq, such as 3.505; set the mode, set the DSP filter,
Push the '80' mtr button again,
Ender a freq, such as 3.530, set the mode, set the DSP filter,
Push the '80' mtr button again,
Enter a freq, such as 3.875, set the mode, set the DSP filter,
Push the '80' mtr button again,
Enter a freq, such as 3.923, set the mode, set the DSP filter,
Push the '80' mtr button again, but this time the freq, mode and DSP filter
settings will recall the 3.505 information you previously stored. Now each
time you push the '80' mtr button it will recall each of the freq, it turn,
that you had set.

However, lets say you had recalled the 3.530 freq information and you
randomly tune around and stop on, say 3.545, and then decide to go to 20
mtrs, when you finish on 20m and go back to 80mtrs, the rig will return to
the frequency it was at when you QSY'ed to 20 mtrs. In other words,  the
band stacking memories are active and will not keep the four
freq/mode/filter settings permanently. When you leave a band and then come
back to it, the settings that you had when you left that original band is
what has been stored in the top band stack memory.

It's  more complicated to write about than to actually use it.

I disagree with you about the 20khz filter being the 'best choice for weak
signal work'. I think the secret to weak signal work is in the proper
adjustment of the pre-amp, the attenuation, and the RF gain, plus the proper
setting of the Programable AGC. And there is NO one setting that works for
every band, you basically have to tailor those settings depending on the
band and the band conditions. Because of the problems with the 500Hz roofing
filter selection, I just leave my roofing filter set at 1khz for all
operations except for contesting, where I use the 250 Hz filter. I
personally would use the 500 Hz roofing filter for contest work IF it did
not degrade the rcvr so much.

Tom - W4BQF

----- Original Message -----
From: "Thomas Uhlman" <tuhlman at kimbanet.com>
To: <tentec at contesting.com>
Sent: Saturday, May 08, 2004 10:50 AM
Subject: Re: [TenTec] Cooling the Orion

> Press "MENUS" then "FILTER", and then you will see the top line is labeled
> "Xtal Filter"... Turn the Multi Knob to select which filter you want to
> use...  20 is the widest and is supposed to be the one with teh lowest
> insertion loss, thus the best choice for weak signal work...  But as I
have
> learned, the main receiver also receives any signals 14kHz down at the
same
> time....
>
> As far as entering a frequency on the keypad, I haven't noticed any
problems
> except that I still do not understand how the stacking registers work...
>
>
> ----- Original Message -----
> From: "Steve Ellington" <N4LQ at igLou.com>
> To: <tentec at contesting.com>
> Sent: Saturday, May 08, 2004 10:07 AM
> Subject: Re: [TenTec] Cooling the Orion
>
>
> > I didn't even know this had a 20khz filter Tom. Am I missing something?
I
> > did notice that when I enter a freq. on the keypad it doesn't always
> > activate unless I turn the vfo knob. What's with that?
> > Steve
> > N4LQ
> >
> > ----- Original Message -----
> > From: "Thomas Uhlman" <tuhlman at kimbanet.com>
> > To: <tentec at contesting.com>
> > Sent: Saturday, May 08, 2004 12:47 PM
> > Subject: Re: [TenTec] Cooling the Orion
> >
> >
> > > Speaking of Orion irregularities, has anyone noticed this issue:
> > >
> > > Set both receivers to the same band and same antennas....
> > >
> > > Enable the 20 kHz filter...
> > >
> > > Tune in a signal on the sub-receiver....
> > >
> > > Set the main receiver 14 kHz ABOVE the subreceiver frequency.....
> > >
> > > Do you receive the same signal on both receivers??
> > >
> > >
> > >
> > >
> > > ----- Original Message -----
> > > From: "Tommy" <aldermant at alltel.net>
> > > To: <tentec at contesting.com>
> > > Sent: Saturday, May 08, 2004 8:38 AM
> > > Subject: Re: [TenTec] Cooling the Orion
> > >
> > >
> > > > Yes, that seems to be a surprising 'plus' to the extra cooling air
> > > movement.
> > > > Would be interesting to know if Jim/KH7M has noticed the same  thing
> > with
> > > > his Orion.
> > > >
> > > > Tom - W4BQF
> > > >
> > > > ----- Original Message -----
> > > > From: "Thomas Uhlman" <tuhlman at kimbanet.com>
> > > > To: <tentec at contesting.com>
> > > > Sent: Saturday, May 08, 2004 8:15 AM
> > > > Subject: Re: [TenTec] Cooling the Orion
> > > >
> > > >
> > > > > Funny you mentioned the darkening of the left hand side of the
> > > display...
> > > > My
> > > > > Orion's display does that too after about an hour or so of
> power-up...
> > > > >
> > > > >
> > > > >
> > > > >
> > > > > > I'm really not 'pressurizing' anything, mearly generating a
slight
> > air
> > > > > flow
> > > > > > out of the top of the Orion through the speaker grill. The
intake
> > > ports
> > > > > > would be mainly the ports on the bottom of the radio, especially
> the
> > > > ones
> > > > > > under the front panel. With the fan speed cranked down so the
fan
> > > makes
> > > > no
> > > > > > noise, there is just a gently flow of air exhausted out the top.
> > > > > >
> > > > > > One side benefit I have noticed:  the left side of my LCD screen
> had
> > > > > become
> > > > > > slightly darker than the rest of the screen (about an inch wide,
> > > > > > vertically), now that has completely cleared up.
> > > > > >
> > > > > > Tom - W4BQF
> > > > > >
> > > >
> > > > _______________________________________________
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> > > > TenTec at contesting.com
> > > > http://lists.contesting.com/mailman/listinfo/tentec
> > > >
> > > >
> > >
> > >
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> > >
> >
> >
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