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  #1  
Old 04-19-2001
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Raytheon ST-60 instruments

I''m disappointed with one component in my beautiful Raytheon ST-60 system.
I have found the ST-60 speed/log impossible to calibrate and it provide erratic calculations. Anyone here that have experience from this type of nav-products?
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Old 04-20-2001
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Raytheon ST-60 instruments

Check its installation. Is it installed near the centerline and foreward of the keel? If it is on the side of the keel it will be affected by heel angle and turbulance eratically. Also how do you know it is reading eratically and not reflecting you actual speed through the water? Also check you averaging function which if it is set to average not frequently enough can give very bizarre readings.
Good luck
Jeff
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Old 04-20-2001
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Raytheon ST-60 instruments

Question: How good are the ST-60 components? We have the ST-50 stuff on board and our wind meter self-destructed due to its tendency to absorb water. Are the ST-60''s sealed better?
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Old 04-20-2001
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Raytheon ST-60 instruments

Hi Constantin,

We have used ST-50 for the last 9 yrs. and still are dry, despite longly exposed.

As far as I understand, main differences between 50 & 60 are more related to the display and numbers size than to software or hardware stuff.

However I did found that quartz display, even if properly covered, tend to difuse and to loose clearness, brightnes and clarity over time. Is quite difficult to find a replacement for theses displays.

Regards
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Old 04-20-2001
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Raytheon ST-60 instruments

Vitamin,

I think you should first check wether the erratic (calculations?) response out from your instrument is a matter of hardware (the wheel down your hull) , or an instalation issue.

First test can be carried out by lifting the speed sensor, (don''t forget to cover the through hull) and checking the readout of the instrument while somebody blows or moves the wheel of the sensor. (Ask this buddy specifically not to blow or move erratically the wheel, if not you will be in square one again )

If this is a brand new equipment, it is hardly to believe you are having a hardware problem. Probably as Jeff suggests, you may have a instalation or configuration problem. Following the manual instructions very close, is easy to check the configuration out. I am an absolute asle in this fied, and was able to fix all of the problems arising from an ST 50 Raytheon system.

In addition I wonder whether the 12 v supply of your system is affected by its routing or any other equipment in the same line.

Lastly, if nothing said here provides a solution to your problem, which is something I do regret to expect, you may post your question in this electronic forum. (I thought it was sponsored by Raytheon)

<a href="http://www.yachtingmagazine.com/forums/electronics.html"> http://www.yachtingmagazine.com/forums/electronics.html</a>

Don''t give up. An american guy, step the moon 30 years ago, so your issue is a piece of cake.

Regards

Fernando
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Old 04-20-2001
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Raytheon ST-60 instruments

WE HAVE A LOT OF ST60 AND RAYTHEON EQUIPMENT ON BOARD.WE RUN INTO PROBLEMS WITH SEATALK EQUIPMENT IF OTHER INSTRUMENTS HAVE DIFFERENT VALUES SET FOR EXAMPLE ONE INSTRUMENT IS IN NAUTICAL MILES AND ONE IS IN STATUTE MILES. MAKE SURE ALL ARE SET TO THE SAME VALUES. THEN DO A MASTER RESET.IF THIS DOESNT WORK CALL RAY MARINE THEY WILL TALK YOU THROUGH THE FIX
ERIC
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Old 04-20-2001
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Raytheon ST-60 instruments

Fer@fer,

The design of the ST-60 is somewaht different in how they seal the units. While the ST50 depended on snap-fits to keep the water out, the ST 60s are hermetically sealed but have a gore-tex patch to allow the unit to breathe without allowing water in.

Our ST50s are installed on a 45 degree incline, a condition I am sure will aggrevate any problems. Another Prout Escale owner got so discouraged that he put a perspex cover over the ST50s to keep rainfall from hitting them.

Ours cloud over and were repaired a number of times at Ray Marine in New Hampshire. The first time we replaced the displays was not because of condensation - the digits dissappreared when the back light was turned on! Not something you want to discover while pulling into a new anchorage at night. Each display cost us $50 plus labor (ouch!)

I actually considered ripping all the Autohelm stuff out as I consider the Raymarine warranty to be a joke. But the costs and hassles of replacing everything will probably incline me to replace the ST50 display units over time.
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Old 04-21-2001
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Raytheon ST-60 instruments

Thank you all. I have in all seven Raytheon instruments on my boat and four are ST-60. I have had little "problems" axcept with the speed/logs performance, so I am very pleased to see these comments. After all, who givs a rats-ass if you have 46 or 48 meter meter under your keel, but if you are jiggling that genoa sheet and the speed display is going up/down 1.50 knots for no darn reason, then you go balistic like me..

I also think the ST-5000 Autopilot could be a bit more "acute" despite being on responce 1 and nine in rudder gain. It sort-of "wobbles" but don''t really wack the rudder hard over, even if we are drifting out of course when becalmed. Most of the time when we go in a straight line at a decent turn of speed it works OK.
Right mates, your knowlage flowing, please!
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Old 04-21-2001
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Raytheon ST-60 instruments

You note a master reset for equipment linked through SeaTalk. Where can you find the information to do a "Master Reset", I do not recall seeing this discussed in the owners manual.

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Raytheon ST-60 instruments

I BELIEVE IT''S CALLED RESET TO FACTORY DEFAULTS.
UNFORTUNATELY MY BOOKS ARE ON THE BOAT IN STT.
ERIC
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