[TenTec] Orion II Sweep and Tuning Rates - a small experiment

[Douglas Shock]

Hey Grant...while on the discussion of nits-in-bits, this is what I
discovered with CW and the NR. Pretty simple and seems to be a great combo.

Be light on the RF gain, like notning below 90...

make use of the 3 step attn instead

nice copy of weak CW signals with little to no distortion now.


On 3/12/06, Grant Youngman <nq5t at comcast.net> wrote:
>
> After all of the gnashing of teeth about the sweep not updating during
> tuning and whether it's useful or not, etc. etc., I decided to try and
> figure out when it worked, and when it didn't.  Ok, it you "spin" the
> knob,
> the sweep will freeze, period.  But ...
>
> What I found was that whether the sweep is "sticky" and stops updating is
> dependent on rotational speed of the tuning knob (obviously) and whether
> the
> Encoder Rate in the menus is set to Slow or Fast.  It appears to be
> independent of STEP size.
>
> I've always kept Enc Rate set to FAST by default, and so what I saw -- and
> verified tonight -- is that a knob rotational speed of about 3-4 sec per
> revolution is about as fast as you can tune and have the sweep continue to
> run well enough to follow a signal.  That's why my comments have always
> been
> along the lines of "when you tune, the sweep stops updating", because 4
> seconds for one knob revolution is slow.
>
> However, having yet another "slap myself in the forehead" epiphany, I
> reset
> the Encoder Rate to SLOW.  In that position, at anything I'd consider a
> normal tuning/scanning rate -- in the slightly under 1 sec per revolution
> range -- the sweep just kept right on trucking, and I could easily follow
> a
> signal up or down the band on the sweep display.  Even at somewhat faster
> roational speeds the sweep updates often enough to allow reasonable
> tracking.
>
> May not solve YOUR problem, but if you're seeing the sweep just stop
> altogether you might want to check your encoder rate setting.
>
> Grant/NQ5T
>
>
>
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