[Xastir] does CWOP filter get new DW stations?
Gerry Creager
gerry.creager at tamu.edu
Thu Feb 28 07:57:49 EST 2008
One thing we're looking to reduce/eliminate is the "Sea Of Blue effect
when folks start putting all CWOP data back out on RF. javAPRSSrvr has
modified over time to do that. CWOP non-hams are not validated
connections and thus shouldn't go out save when we're looking at
compelling need: emergencies like chemical release, severe weather, etc.
Using cwop.tamu.edu as an aggregator of all three CWOP servers allows
this.
A second instance of javaAPRSSrvr is pretty straightforward. That'd be
my recommendation but pose this to Pete on the javAPRSSrvr list and see
what he recommends.
gerry
Eric Germann wrote:
> ok, feeling dumber yet answering my own question.
>
> Is the logical answer to deploy a second instance of the APRS server SW
> here, take the firehose from CWOP's servers, then allow the internal
> clients to filter it to the region of interest? Running it on linux, a
> second instance running on the same box shouldn't be an issue should it?
>
> You can definitely tell the CWOP feed on the Xastir status line. It's
> the one with the red arrow lit all the time :) Sure makes the station
> names zing by also on the status line.
>
>
> EKG
>
>
> Eric Germann wrote:
>> Here's sort of a (dumb) question:
>>
>> I use javaAPRSSrvr locally to aggregate all my APRS traffic from a
>> 144.390 digi, a weather digi and two Telpac's for Winlink, as well as
>> Xastir. This server then establishes ONE bidirectional connection to
>> the *.aprs.net servers. If I wanted to bring in a feed from the CWOP
>> servers, how do I configure a readonly simultaneous upstream to go
>> along with the aprs ones? Basically, I want to aggregate it in the
>> local instance, so I can filter, db it, etc, but NOT gate CWOP servers
>> back to APRS-IS?
>>
>> Thoughts?
>>
>> 73 de N1ICS
>>
>>
>> Gerry Creager wrote:
>>> Two topics covered here. Thanks for the opening.
>>>
>>> Matt Werner wrote:
>>>> To make the program more...universal...shouldn't it check for more
>>>> than the prefix (or maybe it does)? CW and DW are both prefixes that
>>>> are also used by foreign countries and could be (or maybe already are)
>>>> on APRS.
>>>>
>>>> At a minimum a CW station should be required to be wx and the last
>>>> four characters should be numeric I would think.
>>>
>>> Correct. I'd also recommend that we look explicitly for APnnn,
>>> ARnnn, ASnnn and that we consider making this a user-configurable
>>> area that gets updated periodically by developers or maintainers to
>>> be "the default list"
>>>
>>> *TOPIC 2*
>>> Please consider connecting to cwop.tamu.eduport 30001 for gathering
>>> your CWOP data. That provides a full (nope, no filters) feed for all
>>> CWOP data including APRS-Wx (ham: not CW/DW) stations.
>>>
>>> There are 3 CWOP-dedicated servers. These are for the CW/DW
>>> stations. Hams should continue to use the APRS-IS servers _unless_
>>> you don't want your data pointed to RF.
>>>
>>> Questions will be entertained. We're trying to get CWOP covered with
>>> its own servers to improve CWOP *and* APRS performance.
>>>
>>> gerry
>>>
>>>> 73 - Matt
>>>> KB0KQA
>>>>
>>>> On Wed, Feb 27, 2008 at 10:50 AM, Tom Russo <russo at bogodyn.org> wrote:
>>>>> On Wed, Feb 27, 2008 at 10:32:22AM -0600, we recorded a
>>>>> bogon-computron collision of the <kg4wsv at gmail.com> flavor,
>>>>> containing:
>>>>>
>>>>>> According to http://www.wxqa.com/news.html :
>>>>> >
>>>>> > "Feb 24, 2008 - We have started issuing CWOP IDs that start with DW
>>>>> > followed by 4 numbers. We have run through 10,000 IDs that start
>>>>> with
>>>>> > CW, so we have changed to DW and you can see the list of DW
>>>>> stations
>>>>> > that have sent packets."
>>>>> >
>>>>> >
>>>>> > Does the xastir CWOP display filter on packet type, or does it
>>>>> look at
>>>>> > the callsign?
>>>>> >
>>>>> > Yeah, I could eventually figure this out on my own, but my
>>>>> xastir box
>>>>> > is at home, and besides that I'm lazy.
>>>>>
>>>>> >From db.c:
>>>>>
>>>>> // Check whether it is a citizen's weather station
>>>>> if (strncasecmp(p_station->call_sign,"CW",2) == 0) {
>>>>> return(Select_.weather_stations &&
>>>>> Select_.CWOP_wx_stations);
>>>>> }
>>>>>
>>>>> So no, it won't recognized DW's. Yet.
>>>>>
>>>>> --
>>>>> Tom Russo KM5VY SAR502 DM64ux
>>>>> http://www.swcp.com/~russo/
>>>>> Tijeras, NM QRPL#1592 K2#398 SOC#236 AHTB#1
>>>>> http://kevan.org/brain.cgi?DDTNM
>>>>> "And, isn't sanity really just a one-trick pony anyway? I mean all
>>>>> you get is
>>>>> one trick, rational thinking, but when you're good and crazy,
>>>>> oooh, oooh,
>>>>> oooh, the sky is the limit!" --- The Tick
>>>>>
>>>>>
>>>>> _______________________________________________
>>>>> Xastir mailing list
>>>>> Xastir at xastir.org
>>>>> http://lists.xastir.org/cgi-bin/mailman/listinfo/xastir
>>>>>
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>>>
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--
Gerry Creager -- gerry.creager at tamu.edu
Texas Mesonet -- AATLT, Texas A&M University
Cell: 979.229.5301 Office: 979.862.3982 FAX: 979.862.3983
Office: 1700 Research Parkway Ste 160, TAMU, College Station, TX 77843
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