Re: AP1200 PE/PEMPro Query

Richard Kinsey

Hi Ray, one question please. Having checked all the settings in
PEMPro and the ASCOM settings, I discovered that the "PEM Playback"
check-box in the ASCOM settings was checked. Would this setting
override the PEC enable/disable options in PEMPro and the PEC
settings within the AP hand-controller? I have downloaded the PEC
data from the mount, which provides a PE curve of 2.2 arc secs peak
to peak. What I still cannot understand is why the PE was higher with
PEC enabled. I think that I will wait for a very steady night and
record it again.
Thanks, Richard
--- In ap-gto@..., "Ray Gralak" <rgr@...> wrote:

Hi Richard,

Just to be clear... you are using PEMPro only to measure the PE,

If so, it may just be that was loaded into the mount needs to be
Just use PEMPro to download the original curve and save it to a
file for
future reference. Then while still in PEMPro invert the curve you
downloaded from the mount and upload it back to the mount. Then
measure the
PE again with PEM on.


-----Original Message-----
From: ap-gto@... [mailto:ap-gto@...]
On Behalf Of Richard Kinsey
Sent: Thursday, October 18, 2007 2:39 PM
To: ap-gto@...
Subject: [ap-gto] AP1200 PE/PEMPro Query

I have recently taken delivery of a new AP1200 and just run
PEMPro to
have a look at the PE curve. I have run PEMPro several times with
disabled and recorded between 4 and 6 worm cycles each time. The
results have produced PE curves showing 1.37, 1.6 and 1.1 arc
secs peak
to peak. On the basis that PEC is pre-programmed on the
AP1200, I then
ran PEMPro with PEC enabled and obtained a curve showing 3.2 arc
peak to peak. Obviously the results look as they should be the
way around and I am wondering whether the pre-programmed PEC
with PEC turned off? If not, with PE of just over 1 arc sec
PEC, I must have the best mount on the planet!

Thanks in advance, Richard

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