# Adsb\_callsign\_1

**URL:** <https://discuss.px4.io/t/adsb-callsign-1/49357>\
**Category:** QGroundControl\
**Created:** [August 12, 2026, 5:43am UTC](https://discuss.px4.io/t/adsb-callsign-1/49357 "2026-08-12T05:43:27Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![CHAFF](https://discuss.px4.io/user_avatar/discuss.px4.io/chaff/32/10982_2.png) [@CHAFF](https://discuss.px4.io/u/CHAFF)\
**Post date:** [August 12, 2026, 5:43am UTC](https://discuss.px4.io/t/adsb-callsign-1/49357/1 "2026-08-12T05:43:28Z")

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Hello everyone,

Can anyone tell me how 1347957792 is derived from “PX4” in this example?

Thanks

 ![image](https://discuss.px4.io/uploads/default/original/3X/1/2/122bd0f0b7b078581fc3d58d02a4bd909c3f653f.png)

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<div class="post-metadata">

**Author:** ![CHAFF](https://discuss.px4.io/user_avatar/discuss.px4.io/chaff/32/10982_2.png) [@CHAFF](https://discuss.px4.io/u/CHAFF)\
**Post date:** [August 15, 2026, 2:30am UTC](https://discuss.px4.io/t/adsb-callsign-1/49357/2 "2026-08-15T02:30:17Z")

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OK I get it now. It’s an int32, BCD, ASCII/UTF-8 encoding so "PX4 " ----\> P=01010000 X=01011000 4=00110100 ’ '=00100000

[DEC]1347957792 = [HEX]0x50583420 = [BIN/BCD]01010000 01011000 00110100 00100000 = "PX4 "

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<div class="post-metadata">

**Author:** ![system](https://discuss.px4.io/uploads/default/original/3X/7/3/73ce918bdcd64854de904f0c8d9ab70ca9723f2a.png) [@system](https://discuss.px4.io/u/system)\
**Post date:** [August 22, 2026, 2:30am UTC](https://discuss.px4.io/t/adsb-callsign-1/49357/3 "2026-08-22T02:30:31Z")

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