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Packet filtering question

 



I'm sure this is simple - but if the filter returns "true" why does it look like I'm still transmitting?
Lynn Deffenbaugh
 

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I'm guessing here, but in APRS, the filter is used to select packets from the stream, not to remove them.?? So true would mean that the packet matched the filter and should be acted upon?

Lynn (D) - KJ4ERJ - Author of APRSISCE for Windows Mobile and Win32


On 3/6/2024 12:07 PM, Benson via groups.io wrote:



I'm sure this is simple - but if the filter returns "true" why does it look like I'm still transmitting?


 

Oh, OK.? I was trying to avoid putting this one out on RF.
Lynn Deffenbaugh
 

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That would be a -b/W4SNA-4, I think.?? But I'm really not sure about Direwolf's filtering rules in the configuration file.

Lynn (D) - KJ4ERJ - Author of APRSISCE for Windows Mobile and Win32



On 3/6/2024 12:37 PM, Benson via groups.io wrote:

Oh, OK.? I was trying to avoid putting this one out on RF.


 

-b was worth a shot, but alas no workie.
 

Use an exclamation mark (!) for not.

FILTER? 0? 0? ! b/W4SNA-4

It's explained in the User Guide.

9.8.2.3 Budlist Filter
²ú/³¦²¹±ô±ô1/³¦²¹±ô±ô2¡­
Allow all packets from the specified calls. These must be exact matches including the SSID. Wildcarding
is allowed.
When combined with the ¡°!¡± (not) operator, it can be used to reject packets from specified callsigns.

73,
John WB2OSZ
 

Thank you John. No matter how much I pour over that guide, I always miss things.
 

Benson, one could also filter by data type and/or station symbol depending on the need (in case you hadn't considered).

by station symbol (WEATHER Station):
FILTER 0 0 ! s:/_

by data type (Weather Report):
FILTER 0 0 ! t:w

everything mentioned here & by John, strung together with "&" should you need to use the budlist, type, and symbol filters all at once:
FILTER? 0? 0 ! b/call-ssid & ! s:/_ & ! t:w

I have frequent aircraft activity and have been in areas before w/ routine balloons, so I filter for those symbols too (! s:/' & ! s:/0).? The filter feature is pretty powerful and flexible, just takes a little experimentation & reading to see everything possible (thanks John!).

Jon
 

Yeah I really need to do this for one local in my area that has his trailer set to broadcast every 5min and isn't comfortable changing his Tiny track setting's/ letting me change them

I want to either Not broadcast over RF maybe Internet as well or I read we can do a rule changing the 2-1 to stop the rebroadcast.?
 

Noah - the filter in WB2OSZ's post works for me, but you can also use data types and symbols to filter by, as Jon pointed out.

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