The hicut and locut you are describing is exactly how hicut and locut have
to work. What you describe is not a bug. When you tune with hicut, only
the filter needs to change since the lowpass frequency of all the filters is
fixed at 200 hertz. When you tune with locut, the hi freq cutoff must
remain constant so the only way to do this is to change filters and move PBT
to hold the hi cut fixed and just move the low cutoff frequency. So locut
should change both the filter and PBT setting. Hicut should only change the
filter. I implented this in both my N4PY pegasus control program and N4PY
Orion control program so I had to figure it out just like tentec did.
Carl Moreschi N4PY
Franklinton, NC
----- Original Message -----
From: "w4tje" <w4tje@mindspring.com>
To: <tentec@contesting.com>
Sent: Friday, May 21, 2004 2:42 AM
Subject: [TenTec] Orion Notes, High/Low Cut
> Just a couple notes after using my Orion since November 2003.
> First off, it is by far the best rig I have ever had in 27 years as a ham.
> A big thank-you to the men and women at TenTec for this rig. I only wish i
> had looked into Ten Tec earlier. ---My loss. If that now makes me a member
> of the cult, I am happy to be included.
> The anomalies that I have found are what i would call quirks, so no
nervous
> breakdowns or demands from me to Ten Tec to fix anything.
> HIGH/LOW CUT
> On my Orion, I have learned to love the high/low cut filtering, but I
think
> there is still a bug that needs to be addressed. I was hoping v1.370 wud
> address this, but it did not.
> It is hard to explain, but I will try.
> When on an upper mode (usb, ucw), the low cut filter moves the passband
> when it is adjusted. I must then reset the passband after adjusting the
low
> cut filter.
> When on a lower mode (lsb, lcw), the high cut filter moves my passband
when
> it is adjusted. I must then reset the passband after adjusting the high
cut
> filter.
> I hope that description makes sense to everyone. If anyone has found a way
> around this, pse enlighten me.
> But a really wonderful feature that I have discovered is the push button
> effect of the high/low cut filters. If this is in the manual, or if it has
> been previously discussed, I missed it.
> example-- I am on 21217, usb, when qrm comes on above my freq. I tighten
up
> the high cut filter, and then push the knob, holding it down for several
> seconds. The action created by pushing in and holding the knob is much
more
> dramatic and effective than by only turning to tighten the filter.
> Likewise, if qrm comes on below me, I tighten the low cut filter, (and
> re-adjust the passband), then push and hold the low cut knob in, and the
> action is more dramatic and effective than the action created by merely
> tightening the low cut filter.
> When I want to open it back up, I turn the knob, then push and hold, and
> the receiver opens back up agn.
> I hope I have described this in a way that can be followed by everyone.
> I first noticed this action this past winter. but I haven't seen it
> mentioned. Maybe it has been covered earlier. Either way, just thought I
> would pass it along. The effect is far greater at reducing qrm es
> maintaining intelligibility than what I have found in any rig----ever.
> 73 de jack w4tje
>
>
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