Somebody else is using my call sign in aprs.fi. What should I do? Is there somewhere I can report it to?

[Alex B]

Hi

Somebody else is using my call sign in aprs.fi. 

What should I do? 

Thank you 

AlexB 

[Don Rolph]

What call sign?

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73,

AB1PH

Don Rolph

[David W Mitchell]

Use APRS.FI to locate them, fix & hound to pin point them, then report them to the authorities?

TP their home?

Leave a flaming FCC in their lawn in the middle of the night?

LoL....

The last two I was just kidding...

David "O-B-1" Mitchell

14018 NE 70th St

Vancouver, WA 98682-4632

564.208.5389

"Live for today, but love like there is no tomorrow"

1 Corinthians 13

To view this discussion visit https://groups.google.com/d/msgid/aprsfi/CAKpxnB0qq%2BY5jTD-a4oMer4tEPBC3784xDJGbj12CpZneyobxQ%40mail.gmail.com.

[Alex B]

YO3ABC

Alexandru Barbu

Position recorded on 11.01.2026 15:48:36

It isn't me :-)

I attach a print screen 

Maybe it's a mistake 😔 

It is possible to make APRSdroid app 

to request login to aprs.fi to upload the data 

Thank you very much 

Best wishes 

Alex

To view this discussion visit https://groups.google.com/d/msgid/aprsfi/CAKpxnB0qq%2BY5jTD-a4oMer4tEPBC3784xDJGbj12CpZneyobxQ%40mail.gmail.com.

[Alex B]

Thanks 😊 

Nice ideas 

To view this discussion visit https://groups.google.com/d/msgid/aprsfi/CA%2BSR7Q8%2BTRW4XNG1mihcZeWL8zdHkse%2B4Rx7sA%3DUwQFca1YTVQ%40mail.gmail.com.

[Tom Crawford]

Alex,
This is a very old issue with APRS.
The only effective solution is for YOU to use the exact call sign and SSID yourself. If you can set up a radio or app to send out a position every x minutes. They will have to try to figure out what the problem is. Use a fixed position in the mountains or any ridiculous place.

Best of luck to you,
Tom, W3TMC

[Alex B]

Thanks 

I think I have to install a permanent APRS station :-)

Anyway I m very greatful for what APRS.fi is doing 

Many thanks to those who created and maintain the system 

Best of luck to you too Tom

AlexB, YO2ABC

Bucharest 

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[Tom Crawford]

FYI:

There is the app called APRS.fi that runs on iOS devices that will becon at a preset interval

👍

On Feb 11, 2026, at 4:23 PM, Alex B <alex...@gmail.com> wrote:



To view this discussion visit https://groups.google.com/d/msgid/aprsfi/CAOC5QtVr%3D75i5%3DtxOHQohuEAcBTLBJLHOpi2owmBoEWX%3D84G%3Dg%40mail.gmail.com.

[Heikki Hannikainen]

Right, quite often these have been mistakes, where some mistypes their
callsign (one character off, or such), and if you can figure out who it
is, based on their broadcasted location (assuming it is correct), you can
perhaps nicely ask them to use their own callsign.

If asking nicely does not help, it's more difficult.

If they're doing it on the RF side, it could be reported to the local
authorities, who could perhaps care about it as it'd be a violation of
local regulations (in some places, they might not care).

In this case it's done on the Internet, and it's more difficult. I could
perhaps block it on aprs.fi, but the packets are actually sent on the
APRS-IS, and they're visible on a bunch of other sites and databases too,
and to all APRS-IS clients directly connected to the network.

Using your own callsign on APRS will at least interfere with those
operations and might get them to reconfigure. And perhaps pick someone
else's callsign, who will then be upset :(

The basic underlying problem is that there's no method for you to prove to
the software on a a web site or service that you, as an Internet service
user, are the legitimate holder of a callsign (without someone doing
manual work to decipher foreign ID and license documents, which would be
too much work).

On Fri, 6 Feb 2026, Alex B wrote:

>
> YO3ABC
> Alexandru Barbu
>
>
> Position recorded on 11.01.2026 15:48:36
> It isn't me :-)
> I attach a print screen 
>
> Maybe it's a mistake 😔 
>
> It is possible to make APRSdroid app 
> to request login to aprs.fi to upload the data 
>
> Thank you very much 
> Best wishes 
> Alex
>
>

> [IMAGE]

>
>
>
>
> On Fri, Feb 6, 2026, 14:54 Don Rolph <don....@gmail.com> wrote:
> What call sign?
>
> On Fri, Feb 6, 2026 at 7:53 AM Alex B <alex...@gmail.com> wrote:
> Hi
> Somebody else is using my call sign in aprs.fi. 
> What should I do? 
>
> Thank you 
> AlexB 
>
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>
>
>
> --
>
> 73,AB1PH
> Don Rolph
>
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>
>

- Hessu

[Alex B]

My ideea was to tied Call Sign to a email address when they use APRSdroid 

so if it is a mistake you can contact user by email and ask nicely to correct it

This works for people of good faith :-)

Best wishes from Bucharest 

AlexB

YO3ABC

To view this discussion visit https://groups.google.com/d/msgid/aprsfi/47aa47df-ebf8-0f5-d624-dc331b427fdc%40hes.iki.fi.