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 Post subject: synscan
PostPosted: Fri Jan 01, 2016 11:43 am 
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Joined: Fri Oct 10, 2014 8:12 am
Posts: 121
Location: earby lancs
Hi I've upgraded to the synscn with GPS mouse work brilliant in the house till last night did a 3 star alignment it picked stars from south to north back to south without needing much 're lining the said alignment successfully then a warning message came up but not about porla alignment I then went to m42 and it ended up pointing in the wrong direction I tried to reset the alignment again but it wouldent pick up GPS signal then the clouds came ove and dumped its guts on me have I done something wrong any help would be greatfull. Sorry to have gone on a bit

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Skywatcher 200p explorer EQ5 mount synscan upgrade kit
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 Post subject: Re: synscan
PostPosted: Fri Jan 01, 2016 6:17 pm 
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Joined: Fri Dec 03, 2004 9:58 pm
Posts: 3628
Location: Wellingborough
Well, only guessing as I don't have experience of this setup, but what you describe is possible if there are "problems" with the power supply to the mounting. Last night was quite cold, and this may have reduced the output of any battery power supply to below a critical level.

This might explain why the system performed well indoors but had problems when out in the cold.

Just a thought,

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Brian
52.3N 0.6W
Wellingborough UK.

254mm LX90 on Superwedge, WO ZS66SD, Helios 102mm f5 on EQ1, Hunter 11x80, Pentax 10x50
ASI120MC Toucam Pros 740k/840k/900nc mono, Pentax K110D
Ro-Ro roof shed


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 Post subject: Re: synscan
PostPosted: Fri Jan 01, 2016 6:40 pm 
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Joined: Fri Oct 10, 2014 8:12 am
Posts: 121
Location: earby lancs
Yea I can see that could happen the power tank dosent show a drop in power I'll try and flatning the power tank and recharging it as it is new and its a skywatcher powered tank as well

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Skywatcher 200p explorer EQ5 mount synscan upgrade kit
Nikon D3100


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 Post subject: Re: synscan
PostPosted: Fri Jan 01, 2016 8:21 pm 
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Joined: Fri Dec 03, 2004 9:58 pm
Posts: 3628
Location: Wellingborough
I'm sure I read somewhere that the mounting will draw 2amps. At that rate the 7AH powertank might be expected to last 3.5hrs but in fact the voltage output is found to drop off as the battery discharges and if it gets down to about 11volts (I think) the electronics will play up just the same.

Hopefully someone more qualified can come in and confirm or deny this :)

Regards,

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Brian
52.3N 0.6W
Wellingborough UK.

254mm LX90 on Superwedge, WO ZS66SD, Helios 102mm f5 on EQ1, Hunter 11x80, Pentax 10x50
ASI120MC Toucam Pros 740k/840k/900nc mono, Pentax K110D
Ro-Ro roof shed


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 Post subject: Re: synscan
PostPosted: Tue Mar 08, 2016 9:04 pm 
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Joined: Fri Oct 10, 2014 8:12 am
Posts: 121
Location: earby lancs
think I have found the problem I didn't line each object in to the center of the eyepiece as I did that the mount seams to get better on each object as I found M51 for the first time cant wait to find more objects if the sky ever clears

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Skywatcher 200p explorer EQ5 mount synscan upgrade kit
Nikon D3100


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 Post subject: Re: synscan
PostPosted: Wed Mar 09, 2016 6:31 pm 
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Joined: Fri Dec 03, 2004 9:58 pm
Posts: 3628
Location: Wellingborough
Hi speedy. Good to hear you've got your mounting behaving itself now :D

Do you use an eyepiece with crosswires for centring? One centring trick I read about is to defocus the target star in the normal eyepiece so it becomes a disk a little smaller that the field of view. Then it's quite easy to centre this disk by making sure it's the same distance all-round from the edge of the eyepiece field. Of course this needs a fairly bright star but most of the mount set-up routines select bright stars anyway. Cheaper than buying a special eyepiece anyway :)

Regards,

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Brian
52.3N 0.6W
Wellingborough UK.

254mm LX90 on Superwedge, WO ZS66SD, Helios 102mm f5 on EQ1, Hunter 11x80, Pentax 10x50
ASI120MC Toucam Pros 740k/840k/900nc mono, Pentax K110D
Ro-Ro roof shed


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 Post subject: Re: synscan
PostPosted: Wed Mar 09, 2016 7:02 pm 
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Joined: Fri Oct 10, 2014 8:12 am
Posts: 121
Location: earby lancs
No I don't have one of them I've managed to get my finder scope cross wire set to what is in the center of the cross wire is in the center of my eyepiece and has seamd to have helped but will try refocusing a star and see how that works if this weather ever sorts it's self out

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Skywatcher 200p explorer EQ5 mount synscan upgrade kit
Nikon D3100


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