On 1/11/20 10:31 am, Liz wrote:
On Fri, 30 Oct 2020 08:26:41 -0500
Steven Morrison <morrison.monah...@sbcglobal.net> wrote:
Can you explain how you do this?
On 10/30/2020 4:17 AM, Liz wrote:
On Fri, 30 Oct 2020 00:07:19 -0500
Steven Morrison <morrison.monah...@sbcglobal.net> wrote:
Another approach would be to read the new weather entries sent
to APRS-IS for my callsign and transmit them from that report.
I'm still doing that. When I'm driving and see my weather displayed
I know that everything in the chain is working, and that includes my
internet ;)
Liz
VK2XSE
OK
I filter the incoming available data from APRS-IS for local data.
weeWx has sent out my data to APRS-IS, and I collect it along with
other items of local interest (bushfires, storm warnings) and broadcast
them all. This also collects packets from HF APRS users in the
district, or those sending data to APRS-IS through the phone system.
There is a weeWx extension which is able to produce a wxnow.txt file.
Because my weeWx and APRS are on different hardware it became too much
effort to sort out as the existing system worked most of the time.
Liz
VK2XSE
Be aware that the weewx extension cwxn-0.4 provides for three digits of
humidity while the APRS Spec calls for just two digits. It's easy enough
to change the Python script (/usr/share/weewx/users/cwxn.py at around
line 135) to change the 3 for a 2. If used without that change for APRS
the last digit for humidity is chopped off so, e.g., 020% appears on
APRS as 02%. For APRS 100% appears as 00% with the correct (for APRS)
two digit format.
if data['outHumidity'] < 0 or 100 <= data['outHumidity']:
data['outHumidity'] = 0
fields.append("h%03d" % int(data['outHumidity'])) <<<<<< The 3
in this line should be replaced with a 2 as per the following line.
fields.append("h%02d" % int(data['outHumidity']))"
I use rsync to get wxnow.txt from the wx server to feed to xastir using
the xastir_udp_client. I do it that way because some data I receive is
in metric format and first needs to be massaged to meet the APRS spec.
My combination shell script and perl isn't very pretty but it works!
Ray vk2tv
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