[OZAPRS] FW: VK3CV-1 site monitoring with Site Alert

[Richard Hoskin]

Hi Chris,

Ya cant be too careful these days. :)

The original inspiration for Site Alert was when we were running the
VK3KAW-1 on a solar site where power was limited.

The circuit will be available when the prototype trials have been
successful and we don't think there are any major changes required.

Cheers
Richard
VK3JFK

-----Original Message-----
From: Chris Hill [mailto:chris.hill at crhtelnet.com.au] 
Sent: Wednesday, 4 February 2004 11:35 PM
To: vk3jfk at amsat.org; ozaprs at marconi.ics.mq.edu.au
Subject: RE: [OZAPRS] FW: VK3CV-1 site monitoring with Site Alert

Hi All,

I note that "The developer takes no responsibility holy or implied" for
Site
Alert.
http://www.aprs.net.au/Site%20Alert%203%20Web_2.htm

Does this mean that Site Alert is "Plug and Pray"?  :-)

Seriously though, this looks like a great addition to any site.  It
would be
interesting to use the same circuitry to disable other transmitters at a
solar site, such as a 2m voice repeater, etc.  Any chance of a circuit
diagram?

73 Chris vk6kch




-----Original Message-----
From: ozaprs-bounces at marconi.ics.mq.edu.au
[mailto:ozaprs-bounces at marconi.ics.mq.edu.au]On Behalf Of Richard Hoskin
Sent: Wednesday, 4 February 2004 3:08 PM
To: ozaprs at marconi.ics.mq.edu.au
Subject: [OZAPRS] FW: VK3CV-1 site monitoring with Site Alert




Hi All,

Last weekend I installed a prototype of Warren's (VK3BYD) Site Alert at
VK3CV-1. (We are currently testing and proving the units.)

Site Alert monitors several parameters at remote (digi) repeater sites
such as "in shack" temperature, backup battery voltage, digipeater
transmissions and mains power failure alerts. If there is a mains power
failure then Site Alert will notify the site owner via APRS Messaging
and
place an alert icon on the map. If the backup batteries voltage falls
below a preset level Site Alert will disable the Digipeaters transmitter
until the voltage increases to an operational level.

Data from the monitored Site Alert items is fed in to the APRS network
using the TLM format (see APRS spec for more details) and can be logged
using the UI-History/Telemetry utility that comes with UI-View32 ver
1.80
or later, or via FindU using the following URLS:

Temperature;
http://www.findu.com/cgi-bin/tele1.cgi?call=vk3cv-
1&last=96&param=1&b=0.5&label=Site%20Temperature&units=Celcius&autorange
=1

Transmissions;
http://www.findu.com/cgi-bin/tele1.cgi?call=vk3cv-1&last=96&param=3&labe
l=Radio%20Transmissions%20per%201/2%20Hour&units=Cou
nt&autorange=1

Battery;
http://www.findu.com/cgi-bin/tele1.cgi?call=vk3cv-1&last=96&param=2&b=0.
1&label=1/2%20Hour%20Average%20Battery%20Voltage&uni
ts=Volts&autorange=1

Note you need to remove the word wrap from the URLs above.


For more details on Site Alert see
http://www.aprs.net.au/Site%20Alert%203%20Web_2.htm

Cheers
Richard
VK3JFK


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