FWIW, I just put in a new main tuning encoder I
received from Ten-Tec, and my Omni 6 (opt 3) exhibits
all the "problem" symptoms. Incidentally, they don't
bother me at all.
Swapping cables with the RIT encoder isn't going to
prove much since I doubt you'll be able to spin the
RIT knob in the same manner and see whether that
encoder is any better.
73,
Barry N1EU
--- Robert <bigmack@nortexinfo.net> wrote:
>
> Call TT, and ask them to ship you another encoder
> for the main tuning knob.
> I had them do that for my 301 kit when I got a bad
> encoder, and the entire
> problem vanished.. If you are out of warranty, it
> will cost you about $50
> for the part...
>
> At 08:53 AM 11/13/99 , you wrote:
>
> >I have a Omni 6+ that has rather annoying problem
> and I wonder if others
> >might have noticed it too. The problem is not
> affecting the operation of
> >the radio, it is Just DAMN annoying..... expecially
> with a price tag of
> >2600 bucks.
> >When tuning the radio down in frequency (Turning
> the knob CCW) at a rate
> >of about 2 revs per second, the KHZ digit will
> very quickly jump to
> >another digit, then back again.
> >You might see the digits change say from 8, 7, 6,
> 7, 6, 5, 4, 3, 2, 1,
> >2, 1, 0 etc.
> >What acutally is happening is that the processor is
> causing the PLL to
> >jump up in frequency by about 1Khz or so. The
> amount of jump is
> >dependent upon the tuning rate settings. i.e., the
> slower the tuning
> >rate the smaller the amount of jump.
> >I have found that with a 5KHZ setting, the jump is
> about 1khz. This
> >malady is not a function of the encoder as that
> would cause smaller,
> >minute jumps.
> >Another test that will mimick the above and skitz
> out the CPU big time,
> >is to run the PLL to the LOWEST frequency it will
> tune (any band), go to
> >the FM mode, then turn the knob in the CCW
> direction at a rate of about
> >2-3 revs per second. If your radio is ok, you will
> not see anything
> >happen. If your radio has this problem like mine,
> you will see the lower
> >4 digits quickly change to other digits. If you
> stop quick enough, you
> >will notice the display is above where it should
> be. In other words, it
> >jumped up in frequency.
> >Another test is to zero the display to 7.000.00.
> with the finger index
> >at a particular point, turn the knob in the cw
> direction 6-7 turns, note
> >the frequecy you end up at. Then reverse direction
> and move the same
> >amount of turns in the CCW direction. You should
> end up at the same
> >frequency you started at (7.000.00) or very close
> to it.
> >
> >This radio has been back for repair twice. Each
> time it comes back not
> >fixed. TT said they can not duplicate the problem,
> AND that all Omni 6's
> >will do the same thing with the tuning knob test.
> >Has anyone else experieced this same problem and
> what was the fix. Also,
> >I would be interested if some of you guys would do
> this test with your
> >radios and let me know if you see the same thing.
> >Thanks.
> >
> >
> >--
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>
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