[wxsig] One Wire Weather Lockup

[Dave]

Will,

Well it locked up again, Mike KA6DAC has plans to address the heat issue 
with the regulator, he had noticed it was hot.  Do you think that is a 
likely cause of the lockups, and always in the 46 - 48 hour range?  That is 
one thing that makes us wonder where the issue is, its VERY consistant when 
it locks up.

Dave  KD6KHL


----- Original Message ----- 
From: "Will Beals" <will at beals5.com>
To: "'TAPR Weather Station SIG Mailing List'" <wxsig at lists.tapr.org>
Sent: Thursday, July 27, 2006 6:35 PM
Subject: RE: [wxsig] One Wire Weather Lockup


> Dave:
>
> While I don't think firmware is your issue, I would suggest upgrading to 
> the
> latest (1.15.8) release of the firmware as soon as possible. There were a
> number of issues that were addressed from 1.15.4 through 1.15.8.
>
> If it is not RF, one other possibility is the regulator getting too hot. 
> If
> you are feeding the T238+ with a 13.8V supply, that regulator is being
> stressed.  Options include disabling the backlight for normal operation (a
> switch in line with R5), finding a lower voltage (below 12V is usually OK,
> as long as it is above 7.5), or one of the recent suggetions has been to 
> add
> more/bigger heatsinking to the regulator.
>
> will
>
> -----Original Message-----
> From: wxsig-bounces at lists.tapr.org [mailto:wxsig-bounces at lists.tapr.org] 
> On
> Behalf Of Dave
> Sent: Thursday, July 27, 2006 3:29 PM
> To: wxsig at lists.tapr.org
> Subject: [wxsig] One Wire Weather Lockup
>
> Greetings,
>
> Ok, I am very new to APRS and packet, I am working with a friend on 
> putting
> up a APRS weather station in the remote area of Campo, California.  So far
> we have the T238+ and a Kantronics TNC with AAG weather gear.  I can get
> more specific if needed, but I don't have too much info with me.
>
> Basically everything runs well for about 48 hours and then the weather
> station seems to lock up.  The digi still operates and reports, but the
> screen on the T238 stops updating and the "heartbeat" that the person who
> built this put on stops functioning, and he said that is only related to 
> the
> weather side of things.
>
> The firmware version is  rev 1.15.4r.
>
> You can view the station readings at
>
> http://www.findu.com/cgi-bin/wxpage.cgi?call=KA6DAC-11&last=120
>
> Any help would be greatly appreciated.  Some thoughts Mike had was that 
> the
> antenna was too close to the weather gear and was corrupting the data, we
> raised the mast and got the antenna farther away, no change.  The last
> lockup was yesterday, and was reset last night about 8pm.  Mike thought
> maybe he should put a real time clock in this to keep the time consistent,
> no idea if this will help.  Mike is pretty knowledgeable about radio gear,
> he is a radio tech by trade, and has been into Ham a long time, but has 
> been
> out of packet for several  years.
>
> Well any help would be greatly appreciated.
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>
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