Weather
announcements contain weather information that is distributed to all users
connected on the network. By being
connected into a DX Cluster you will get weather announcements in real-time as
they are spotted. You can also query the
database for past weather announcements.
Additionally, you can post weather announcements to the network.
As
soon as you connect into a DX Cluster you will automatically start receiving weather
announcements as they are posted. The
display of real-time announcements can be controlled with the following
commands.
Examples:
set/nowx_announcements
set/wx_announcements
You can list previous weather announcements in the
standard format with the SHOW/WX command. The default listing is the last five
announcements.
Example:
show/wx
If you want to see more weather announcements than
this you can also add an optional number to the end of the command as in SHOW/WX/nn. This will allow you to display the last 20 or
30 weather announcements.
Examples:
show/wx /20
show/wx /30
AR-Cluster also
allows the user to program his own WX spot queries using SQL. SQL queries are very powerful and allow you
to build custom commands to query the WX spot database. With some simple examples, is not too hard
to pick up some SQL basics. The SH/WX
query commands can be ran against any of the fields in the WX spot database.
Examples:
sh/wx where FROMCALL = 'K1TTT'
sh/wx where FROMNODE = 'N1EW'
sh/wx where SpotterCty
= 'K'
sh/wx where SpotterSubCty
= 'TX'
sh/wx where SpotterSubCty
= 'TX' OR SpotterSubCty = 'OK'
You can also use
the LIKE operator and the wildcard character "%" to do
partial matches.
Example:
sh/wx where ANN LIKE '%TEMP%'
sh/wx/30 where ANN LIKE '%SEVERE%'
The database
fields that are available for Advanced WX Spot Queries are:
|
FromCall |
Callsign that
originated the spot |
|
ToFlag |
Field indicating
who the spot is directed to |
|
Ann |
Weather
Announcement message |
|
SysopFlag |
Flag indicating
a sysop announcment |
|
FromNode |
Node that
originated the announce spot |
|
SrcStation |
Node that we
received the spot from |
|
DTS |
Date-Time-Stamp |
|
SpotterCty |
Country of the
spotter – follows ARRL.CTY file |
|
SpotterSubCty |
State/Province
of the spotter |
The WX command is used to make a general broadcast
of weather conditions. To make an
announcement to users on the DX cluster you are connected to.
Example:
wx Tornado alert for travis county
To make an announcement to users across the whole
network use the FULL operator.
Example:
wx/full Three inch hail reported in travis county
Certain nodes may have the capability of displaying data
from an optional weather station. This
data can be polled with the SH/WXSTATION command. The wind chill will be displayed if it is
less that 4 degrees lower that the current temperature. Optional values for humidity, barometric
pressure and rainfall will be shown if available.
Example:
Show/wxstation ab5k
Example Output: