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Re: Ovision upgrade Losmandy Mount question


Aug 16, 2009

 


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#43683 Aug 16, 2009

Looking for some feedback regarding how to best interpret my phd logs.



Prior to adding the Ovision worm I appeared to be getting 10-12 PE and the infamous 76.2 error message and felt it was worth the additional funds to upgrade.

I did the upgrade yesterday however I'm not sure if the curve I'm seeing is correct.



What I'm reading on the PEA graph in PecPrep is under 5.3 peak to peak however it looks funny as opposed to a nice up and down symetrical curve.

Also the PEC tab shows 3-3 peaks however still not observing what I've seen others show.



The data was gathered with PHD using the guiding solution however I had the guide commands output disabled.

So the results are not guided.



Lost the guide star during the last five minutes so maybe this is the result I'm seeing.



Any input or feedback would be greatly appreciated.



Thanks in advance.

Troy



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#43688 Aug 16, 2009

You will not see a perfectly smooth undulating curve due to the atmospheric disturbance and noise from the gearbox and other items. You will see spikes and dips and such things, bt the reduction to 5.2" is not bad at all. On a better night with steady air, the PE may show a better curve and the 5.3" may be reduced as well.

Also, adjustment of the worm lash will result in the best possible PE and curve, so you may want to play with this adjustment to see if you can improve things.

Floyd --- In Losmandy_users@yahoogroups.com, "Troy" sere_team@...> wrote:

>

> Looking for some feedback regarding how to best interpret my phd logs.

>

> Prior to adding the Ovision worm I appeared to be getting 10-12 PE and the infamous 76.2 error message and felt it was worth the additional funds to upgrade.

> I did the upgrade yesterday however I'm not sure if the curve I'm seeing is correct.

>

> What I'm reading on the PEA graph in PecPrep is under 5.3 peak to peak however it looks funny as opposed to a nice up and down symetrical curve.

> Also the PEC tab shows 3-3 peaks however still not observing what I've seen others show.

>

> The data was gathered with PHD using the guiding solution however I had the guide commands output disabled.

> So the results are not guided.

>

> Lost the guide star during the last five minutes so maybe this is the result I'm seeing.

>

> Any input or feedback would be greatly appreciated.

>

> Thanks in advance.

> Troy

>



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#43692 Aug 17, 2009

Hi Floyd



Last night the conditions were very poor so that explains it.



When reading the install instructions there was a comment amount having 1-2 mm of play in RA when its secure and grabbing the DEC shaft to test movement.



I'm assuming this is referencing the lash your mentioning?

As of now no play at all in RA which was also the case prior to the upgrade of the worm.



Troy



--- In Losmandy_users@yahoogroups.com, "Floyd Blue" fblue@...> wrote:

>

> You will not see a perfectly smooth undulating curve due to the atmospheric disturbance and noise from the gearbox and other items. You will see spikes and dips and such things, bt the reduction to 5.2" is not bad at all. On a better night with steady air, the PE may show a better curve and the 5.3" may be reduced as well.

> Also, adjustment of the worm lash will result in the best possible PE and curve, so you may want to play with this adjustment to see if you can improve things.

> Floyd

> --- In Losmandy_users@yahoogroups.com, "Troy" sere_team@> wrote:

> >

> > Looking for some feedback regarding how to best interpret my phd logs.

> >

> > Prior to adding the Ovision worm I appeared to be getting 10-12 PE and the infamous 76.2 error message and felt it was worth the additional funds to upgrade.

> > I did the upgrade yesterday however I'm not sure if the curve I'm seeing is correct.

> >

> > What I'm reading on the PEA graph in PecPrep is under 5.3 peak to peak however it looks funny as opposed to a nice up and down symetrical curve.

> > Also the PEC tab shows 3-3 peaks however still not observing what I've seen others show.

> >

> > The data was gathered with PHD using the guiding solution however I had the guide commands output disabled.

> > So the results are not guided.

> >

> > Lost the guide star during the last five minutes so maybe this is the result I'm seeing.

> >

> > Any input or feedback would be greatly appreciated.

> >

> > Thanks in advance.

> > Troy

> >

>



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