# ads-b filter

**URL:** <https://discussions.flightaware.com/t/ads-b-filter/17855>\
**Category:** ADS-B Flight Tracking\
**Created:** [January 7, 2016, 6:38pm UTC](https://discussions.flightaware.com/t/ads-b-filter/17855 "2016-01-07T18:38:29Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![sergiomaria](https://avatars.discourse-cdn.com/v4/letter/s/d26b3c/32.png) [@sergiomaria](https://discussions.flightaware.com/u/sergiomaria)\
**Post date:** [January 7, 2016, 6:38pm UTC](https://discussions.flightaware.com/t/ads-b-filter/17855/1 "2016-01-07T18:38:29Z")

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Good evening Group,  
I bought a Flightaware ads-b filter(from Amazon),I would know best solution:  
near antenna or near the receiver?  
thanking in advance,best regards  
and Happy new Year!!!

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**Author:** ![TomMuc](https://sea1.discourse-cdn.com/flex019/user_avatar/discussions.flightaware.com/tommuc/32/113358_2.png) [@TomMuc](https://discussions.flightaware.com/u/TomMuc)\
**Post date:** [January 7, 2016, 7:59pm UTC](https://discussions.flightaware.com/t/ads-b-filter/17855/2 "2016-01-07T19:59:12Z")

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> [@sergiomaria](#):
>
> Good evening Group,  
> I bought a Flightaware ads-b filter(from Amazon),I would know best solution:  
> near antenna or near the receiver?  
> thanking in advance,best regards  
> and Happy new Year!!!

in front of receiver is better (when using an amplifier: antenna-\>amp-\>cable-\>filter-\>dongle). the amplifier should always placed near antenna. be aware that the filter reduces 1090mhz signal too. so - it’s only useful if you have strong signals on other frequencies. in addition the flightaware filter is nearly worthless at european gsm 920-960mhz.

kind regards  
tom

p.s. saw that your site is located in sicily - did you know that the inventor of dump1090 (the software that mostly drives all this ads-b stuff) is from sicily too 🙂

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<div class="post-metadata">

**Author:** ![sergiomaria](https://avatars.discourse-cdn.com/v4/letter/s/d26b3c/32.png) [@sergiomaria](https://discussions.flightaware.com/u/sergiomaria)\
**Post date:** [January 7, 2016, 9:50pm UTC](https://discussions.flightaware.com/t/ads-b-filter/17855/3 "2016-01-07T21:50:28Z")

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> [@TomMuc](#):
>
> > [@sergiomaria](#):
> >
> > Good evening Group,  
> > I bought a Flightaware ads-b filter(from Amazon),I would know best solution:  
> > near antenna or near the receiver?  
> > thanking in advance,best regards  
> > and Happy new Year!!!
> 
> in front of receiver is better (when using an amplifier: antenna-\>amp-\>cable-\>filter-\>dongle). the amplifier should always placed near antenna. be aware that the filter reduces 1090mhz signal too. so - it’s only useful if you have strong signals on other frequencies. in addition the flightaware filter is nearly worthless at european gsm 920-960mhz.
> 
> kind regards  
> tom
> 
> p.s. saw that your site is located in sicily - did you know that the inventor of dump1090 (the software that mostly drives all this ads-b stuff) is from sicily too 🙂

Hi Tom,  
thank for reply and suggestion…  
no I did not know author of Dump 1090 was from my country,have you his email address??  
thank again  
best wishes

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<div class="post-metadata">

**Author:** ![TomMuc](https://sea1.discourse-cdn.com/flex019/user_avatar/discussions.flightaware.com/tommuc/32/113358_2.png) [@TomMuc](https://discussions.flightaware.com/u/TomMuc)\
**Post date:** [January 7, 2016, 10:02pm UTC](https://discussions.flightaware.com/t/ads-b-filter/17855/4 "2016-01-07T22:02:29Z")

</div>

> [@sergiomaria](#):
>
> > [@TomMuc](#):
> >
> > > [@sergiomaria](#):
> > >
> > > Good evening Group,  
> > > I bought a Flightaware ads-b filter(from Amazon),I would know best solution:  
> > > near antenna or near the receiver?  
> > > thanking in advance,best regards  
> > > and Happy new Year!!!
> 
> in front of receiver is better (when using an amplifier: antenna-\>amp-\>cable-\>filter-\>dongle). the amplifier should always placed near antenna. be aware that the filter reduces 1090mhz signal too. so - it’s only useful if you have strong signals on other frequencies. in addition the flightaware filter is nearly worthless at european gsm 920-960mhz.
> 
> kind regards  
> tom
> 
> p.s. saw that your site is located in sicily - did you know that the inventor of dump1090 (the software that mostly drives all this ads-b stuff) is from sicily too 🙂
> 
> Hi Tom,  
> thank for reply and suggestion…  
> no I did not know author of Dump 1090 was from my country,have you his email address??  
> thank again  
> best wishes

salvatore sanfilippo - campobello di licata - [antirez@gmail.com](mailto:antirez@gmail.com)  
cheers  
tom