-----Original Message-----
From: ap-gto@... [mailto:ap-gto@...] On Behalf Of frodil620206
Sent: Tuesday, May 04, 2010 8:32 PM
To: ap-gto@...
Subject: [ap-gto] Re: Pulse Guide not running w/AP driver



Today i downloaded and installed MaximDL 5.09. I tried again and the behavior was completely the same. I tried all the

available in the telescope setup (Mount type, side of pier), i changed the pier flip indicator in the guider window,

BUT then i decided to try again (i had try it without success) connecting the guider to the mount through "ASCOM

worked".

Now, what i don´t know is if this guiding settings uses PulseGuiding that is what i want to do, how can i know?

I´ll appreciate any help on this.

Clear skies, Florencio

--- In ap-gto@... <mailto:ap-gto%40yahoogroups.com> , Florencio Rodil <frodil620206@...> wrote:

I have followed this thread from the beginning because I have the same concern that Jim. Jim's description of the

exactly the same behavior I get from my AP1200GTO/CP3. I guide with a DMk21AF04 camera. If I guide with PHD using

through "Mount V2 GTO" the result is great, but i want to be guide with MaximDL so i can use dither.

Please forgive my poor english.

Florencio



________________________________
From: Jim Collins <jimstar11gps@...>
To: ap-gto@... <mailto:ap-gto%40yahoogroups.com>
Sent: Mon, May 3, 2010 2:48:06 PM
Subject: [ap-gto] Re: Pulse Guide not running w/AP driver


Hi Ray, Here is the initial feedback from Maxim:
The "Control Via" setting depends on what autoguider you are using. If you autoguider has built in relays, it should

Relays", if it doesn't have relays, the typical setting is "Telescope".

What guider are you using?

Sincerely,
Tim Beese
Diffraction Ltd.
------------ --------- --------- -----
Tim Beese

My Response:
Hi Tim,
Correct. But I'm trying to use pulseguide via the "telescope" setting. This is suppose to eliminate the guider cable

reports the pulseguiding method seems to be better. Other AP mounts (ie: Ray Gralak)report no problems with this

....Mine will not work. The PulseGuide method calibrates ok, but when tracking the guide star, it drifts completely

immediately.

Ray G. has tried to troubleshoot my issue, and so far has not found the problem. He, asked me to let Maxim know

issue....just in case it might be a Maxim setting or problem. Ray said, that he tried his AP1200GTO/CP3 with

pulseguiding method worked on his setup.

MY GUIDER: Lodestar

So Ray, Do you think my Guider (Lodestar) could be the problem?

JIM C







[Non-text portions of this message have been removed]

I have followed this thread from the beginning because I have the same concern that Jim. Jim's description of the problem has exactly the same behavior I get from my AP1200GTO/CP3. I guide with a DMk21AF04 camera. If I guide with PHD using ASCOM through "Mount V2 GTO" the result is great, but i want to be guide with MaximDL so i can use dither.

Please forgive my poor english.

Florencio



________________________________
From: Jim Collins <jimstar11gps@...>
To: ap-gto@...
Sent: Mon, May 3, 2010 2:48:06 PM
Subject: [ap-gto] Re: Pulse Guide not running w/AP driver


Hi Ray, Here is the initial feedback from Maxim:
The "Control Via" setting depends on what autoguider you are using. If you autoguider has built in relays, it should be set to "Guider Relays", if it doesn't have relays, the typical setting is "Telescope".

What guider are you using?

Sincerely,
Tim Beese
Diffraction Ltd.
------------ --------- --------- -----
Tim Beese

My Response:
Hi Tim,
Correct. But I'm trying to use pulseguide via the "telescope" setting. This is suppose to eliminate the guider cable and from other reports the pulseguiding method seems to be better. Other AP mounts (ie: Ray Gralak)report no problems with this method...... ....Mine will not work. The PulseGuide method calibrates ok, but when tracking the guide star, it drifts completely off almost immediately.

Ray G. has tried to troubleshoot my issue, and so far has not found the problem. He, asked me to let Maxim know about the issue....just in case it might be a Maxim setting or problem. Ray said, that he tried his AP1200GTO/CP3 with MaximV4.71 and the pulseguiding method worked on his setup.

MY GUIDER: Lodestar

So Ray, Do you think my Guider (Lodestar) could be the problem?

JIM C







[Non-text portions of this message have been removed]

Hi John,

in the Camera setup you can define the priority!

Konstantin


Konstantin v. Poschinger

Hammerichstr. 5
22605 Hamburg
040/8805747
0171 1983476

Am 02.05.2010 um 20:28 schrieb Joseph Zeglinski:

John,

I haven't checked, but isn't there a way to give the camera driver a top
priority, so nothing affects a download? At the very least, perhaps S.B. &
SBIG could split their drive in two parts, with the brief download section
being "uninterruptible" by anything in Windoze.
Also, might it make image downloads less vulnerable, and the image less
likely to show banding perhaps, if the download is done to a USB thumb drive
(or a secondary data store), rather than the common system drive? That way,
there is no contention or disk access. Perhaps that isn't a significant
load, but given enough stuff possibly going on with use of an imaging &
control laptop, it might.

As for cable noise, even if USB had a robust comms protocol, any errors
will require a packet retransmit, and if there are enough, that could affect
image quality, as the camera processor holds further sensor line scan, until
the current line is retransmitted - if that is how the firmware actually
works. Perhaps it would have been nice if CCD cameras had a USB thumb drive
slot, to avoid long cable runs, noise, and hard drive contention.

Joe

----- Original Message -----
From: "john_and_hong" <john_and_hong@...>
To: <ap-gto@...>
Sent: Sunday, May 02, 2010 12:13 PM
Subject: [ap-gto] Re: Problem solved? Cable Zip

It is actually called Cable Zip (I called it cable wrap by mistake).

Yes, there are lots of things to consider in an imaging system. I am not
too concerned though, because USB is a digital system, so it is very
resilient to electronic interference. However, I do not use a dew heater -
I imagine that these can cause problems with power supplies as they turn
on and off.

A more common cause of noise is caused by using the PC (e.g. a bit of
processing!) during a download. On some (or even most) CCD cameras, if the
download is interrupted (e.g. has to wait in order to access the disk),
you will get visible artifacts. Some newer CCD cameras store the image in
memory before downloading the image. This solves the problem.

John

[Non-text portions of this message have been removed]

Hi Group,

Sometimes you go looking through some old data and find an image which
you never got around to finalising the processing of. This is one such
image. There was a recent discussion about seeing on this group so I
might mention that the FWHM averaged at 1.6" on the night I took the
luminance.

Here's the link to the image.

http://www.webtreatz.com/gallery/displayimage.php?pid=88&fullsize=1 <http://www.webtreatz.com/gallery/displayimage.php?pid=88&fullsize=1>

Equipment:
C14 @ f/5.0 (with Optec Nextgen Focal Reducer)
AP1200 GTO CP3
SBIG ST8 and CFW9
Astronomik LRGB

Processing:
Images Plus v3.75
Photoshop CS2
Color was calibrated using a nearby G2V star.

Clear Skies,

Dave.
--
*Dave Grennan
*Raheny Observatory (MPC J41) - Dublin Ireland
E-Mail: dave[nospam]-at-webtreatz dot com
www.webtreatz.com

It is actually called Cable Zip (I called it cable wrap by mistake).

Yes, there are lots of things to consider in an imaging system. I am not too concerned though, because USB is a digital system, so it is very resilient to electronic interference. However, I do not use a dew heater - I imagine that these can cause problems with power supplies as they turn on and off.

A more common cause of noise is caused by using the PC (e.g. a bit of processing!) during a download. On some (or even most) CCD cameras, if the download is interrupted (e.g. has to wait in order to access the disk), you will get visible artifacts. Some newer CCD cameras store the image in memory before downloading the image. This solves the problem.

John

Hi Anthony,

Congrats on this observation. It is remarkable the steepness of the
fall and rise at ingress and egress. I hadn't noticed such a sharp fall
and rise on your previous work. Is this a feature of this exoplanet?

Dave.
On 02/05/2010 04:26, Anthony Ayiomamitis wrote:

Dear group,

A very productive evening came to a successful conclusion an hour ago
with the work involving the exoplanet WASP-14b in Bootes 570 light-years
away and which was announced in mid-2008.

This exoplanet has a whopping mass 7.75 times that of Jupiter and is one
of the densest exoplanets discovered so far. WASP-14b requires a mere 54
hours to complete one orbit around its host star. When in transit across
its sun, the event lasts 183.6 minutes at a depth of 10.2 mmag (ie.
0.0102 mag).

For further details as well as the transit itself from a few hours ago,
please see

http://www.perseus.gr/Astro-Photometry-WASP-14-20100501.htm <http://www.perseus.gr/Astro-Photometry-WASP-14-20100501.htm> .

Anthony.
.


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--
*Dave Grennan
*Raheny Observatory (MPC J41) - Dublin Ireland
E-Mail: dave@... <mailto:dave%40webtreatz.com>
Phone: +353+1+8310786
www.webtreatz.com

Hi,

The only concern I would have about "cable wrap", or even much worse,
"cable ties", is cross talk between signals in the shared bundle of lines.
Most cables should be shielded, if they are any good at all, and of course,
each shield properly grounded at one end. The power cable isn't, and every
time any equipment relay operates, power line noise results - that may only
be a concern for large relays, though, (speaking from a bad experience
decades ago, on that issue). I assume all other cables in the tightly
coupled, shared bundle, are twisted pair, shielded jacket. With the high
data rates and frequencies involved, it is something else to consider in an
imaging system.

Joe

----- Original Message -----
From: "john_and_hong" <john_and_hong@...>
To: <ap-gto@...>
Sent: Sunday, May 02, 2010 8:13 AM
Subject: [ap-gto] Re: Problem solved?

Yes, I use a very similar product. All I wanted was something that was
light and effectively increased the DEC cables diameter to about half an
inch. With the increased diameter of the cable, it can not get snagged by
the clutch knobs. It works perfectly. It was described as cable wrap here
in the UK.

I also use the same product to keep all the cables going to the CCD camera
together to prevent cable tangle - CCD Power, USB, focuser cable. No
autoguider cable - I now use pulseguide :)

John Murphy

--- In ap-gto@..., "oldultimacat" <oef3@> wrote:

Has anyone else tried 3/8" split wire loom to solve the DEC wire snag
problem. I've found that the loom has just enough spring and stiffness
to keep the wire lifted over the clutch nob and out of entanglement from
the dovetail adjusting nobs. Wire loom is also slippery so that it slides
off all those nobs.

Otis

------------------------------------

To UNSUBSCRIBE, or for general information on the ap-gto list
see http://groups.yahoo.com/group/ap-gtoYahoo! Groups Links

Dear group,

A very productive evening came to a successful conclusion an hour ago
with the work involving the exoplanet WASP-14b in Bootes 570 light-years
away and which was announced in mid-2008.

This exoplanet has a whopping mass 7.75 times that of Jupiter and is one
of the densest exoplanets discovered so far. WASP-14b requires a mere 54
hours to complete one orbit around its host star. When in transit across
its sun, the event lasts 183.6 minutes at a depth of 10.2 mmag (ie.
0.0102 mag).

For further details as well as the transit itself from a few hours ago,
please see http://www.perseus.gr/Astro-Photometry-WASP-14-20100501.htm .

Anthony.
.


------------------------------------

To UNSUBSCRIBE, or for general information on the ap-gto list
see http://groups.yahoo.com/group/ap-gtoYahoo! Groups Links

Yes, I use a very similar product. All I wanted was something that was light and effectively increased the DEC cables diameter to about half an inch. With the increased diameter of the cable, it can not get snagged by the clutch knobs. It works perfectly. It was described as cable wrap here in the UK.

I also use the same product to keep all the cables going to the CCD camera together to prevent cable tangle - CCD Power, USB, focuser cable. No autoguider cable - I now use pulseguide :)

John Murphy

--- In ap-gto@..., "oldultimacat" <oef3@...> wrote:

Has anyone else tried 3/8" split wire loom to solve the DEC wire snag problem. I've found that the loom has just enough spring and stiffness to keep the wire lifted over the clutch nob and out of entanglement from the dovetail adjusting nobs. Wire loom is also slippery so that it slides off all those nobs.

Otis

------------------------------------

To UNSUBSCRIBE, or for general information on the ap-gto list
see http://groups.yahoo.com/group/ap-gtoYahoo! Groups Links

Has anyone else tried 3/8" split wire loom to solve the DEC wire snag problem. I've found that the loom has just enough spring and stiffness to keep the wire lifted over the clutch nob and out of entanglement from the dovetail adjusting nobs. Wire loom is also slippery so that it slides off all those nobs.

Otis