# No ADS-B messages showing up in readsb

**URL:** <https://adsbx.discourse.group/t/no-ads-b-messages-showing-up-in-readsb/1078>\
**Category:** Technical Support\
**Created:** [May 27, 2025, 3:18pm UTC](https://adsbx.discourse.group/t/no-ads-b-messages-showing-up-in-readsb/1078 "2025-05-27T15:18:31Z")\
**Posts on this page:** 3\
**Page:** 1

<div class="post-metadata">

**Author:** ![thekilt](https://yyz1.discourse-cdn.com/flex027/user_avatar/adsbx.discourse.group/thekilt/32/396_2.png) [@thekilt](https://adsbx.discourse.group/u/thekilt)\
**Post date:** [May 27, 2025, 3:18pm UTC](https://adsbx.discourse.group/t/no-ads-b-messages-showing-up-in-readsb/1078/1 "2025-05-27T15:18:31Z")

</div>

Hi - I just set up a new receiver and it’s not showing any messages in readsb, even though I know I’m receiving some.

Base station: Latest ADSBx on a RPI 3B+ with an RTL-SDRv4  
Antenna: cantenna mounted ~15 feet off the ground (atop lamp post on deck)  
Siting: I live in the flight path for three major airports plus a local municipal airport, and there are regularly planes flying directly over my house

The problem: No ADS-B messages are showing up in readsb. Installation of ADSBx went fine, and no errors are reported in the system/service logs. I do have the RDL-SDR assigned to readsb.

If I turn off readsb and run rtl\_adsb, I do see messages which I can decode with pyModeS. For example:

> pms.tell(“8dfbf34db0d3c4a9f027536c7121”)  
> Message: 8dfbf34db0d3c4a9f027536c7121  
> ICAO address: fbf34d  
> Downlink Format: 17  
> Protocol: Mode-S Extended Squitter (ADS-B)  
> Type: Airborne position (with GNSS altitude)  
> CPR format: Odd  
> CPR Latitude: 0.16595458984375  
> CPR Longitude: 0.07680511474609375  
> Altitude: 11115.48592 feet

So, I’m receiving messages, but they’re not showing up in readsb. Any idea what I’m doing wrong here, or things to look into to fix?

---

<div class="post-metadata">

**Author:** ![dseven](https://avatars.discourse-cdn.com/v4/letter/d/d07c76/32.png) [@dseven](https://adsbx.discourse.group/u/dseven)\
**Post date:** [May 27, 2025, 3:32pm UTC](https://adsbx.discourse.group/t/no-ads-b-messages-showing-up-in-readsb/1078/2 "2025-05-27T15:32:53Z")

</div>

The “blog” v4 requires drivers to be installed - did you do that? [RTL-SDR Blog V4 Users Guide](https://www.rtl-sdr.com/v4/) I would have expected it to be needed for rtl\_adsb too, though. What does `journalctl --no-pager -u readsb` look like when it’s not working?

---

<div class="post-metadata">

**Author:** ![thekilt](https://yyz1.discourse-cdn.com/flex027/user_avatar/adsbx.discourse.group/thekilt/32/396_2.png) [@thekilt](https://adsbx.discourse.group/u/thekilt)\
**Post date:** [May 27, 2025, 3:53pm UTC](https://adsbx.discourse.group/t/no-ads-b-messages-showing-up-in-readsb/1078/3 "2025-05-27T15:53:00Z")

</div>

Installing the right drivers fixed it.

Thanks!