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Old 05-02-2010, 09:31 PM
Arthur Alchin (Arthur Alchin)
Honey based Meade

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Wireless Meade Autostar 497??

The astrophiles are quite resourceful so i pose a question, not a stupid one but maybe one that is out there (nearly).

I have a meade S/N 8" on the standard base (GEM) running Autostar 497 with a "leaded" controller box. I am aware that you can purchase a wireless remote for the Autostar 2 (LX200's etc) but can anyone suggest a way of making the 497 "wireless", I am all ears.
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Old 06-02-2010, 07:32 AM
AndrewJ
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Gday Arthur

Quote:
anyone suggest a way of making the 497 "wireless"
Get bloody quick wireless
ref
http://www.astrogene1000.com/DIY/497...alized_497.htm

It works on the bench, but is very susceptible to speeds as the comms arent "std"

Andrew
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Old 07-02-2010, 08:58 AM
Arthur Alchin (Arthur Alchin)
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thankyou Andrew

Thanks for that Andrew3, boy it looks rather complex, maybe i should think about something using Infra red like modifying a TV remote and receiver unit out of an old tv, they look multi channel
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Old 07-02-2010, 12:23 PM
AndrewJ
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Gday Arthur

Its not "physically complex", its just a mess on his testbench.
( as are all good breadboard jobs )
You have no hope of doing it with IR remotes etc due to timings
and reqt for line of sight.
Remember, the system is multiplexing 3 clock lines and 2 data lines,
using proprietary SPI, not simple serial.
The prototype uses a PIC at each end to do this multiplexing
but it requires a very high rate for the rf transmission.
Thats the killer at present.

Andrew
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Old 08-02-2010, 08:32 PM
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5ash (Philip)
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Hi arthur why not just get an extension lead for the handbox i got one frrom the uk for my lx90 and it worked fine.
regards philip
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Old 10-02-2010, 10:39 PM
Arthur Alchin (Arthur Alchin)
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thankyou

sounds good, might look at it as a much cheaper option, any idea where from in the uk??
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  #7  
Old 11-02-2010, 06:47 AM
AndrewJ
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Gday Arthur

If you want to make an extension cable for a 497,
The simplest and cheapest way is to use a cat5 patch cable with a joiner to connect it to your coiled cable.
They make two types of joiner, crossover 1-1 or straight through 1-8.
you need to get the right one ( its a crossover 1-1 IIRC ).
Doing this allows you to keep the pin polarity correct

Andrew
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