Radiosonde dont recive Data

[Patrick]

I has go few days ago to search a Baloon near my Home. I was in the Landing Area where i turned on my TTGO and i have Conect my Mobile.
When i was near the Baloon i recive the Sound with my Radio but my TTGO do not recive Any Data to Decode.

Anyone has a solucion for that ?

[IZ4PNN]

Hi Patrick,
the causes can be many.

Maybe your ttgo is not perfectly centered in frequency.
To solve this problem you can perform a calibration or widen the rx band in the settings.
For example for the RS41 you can set 6300.
We await your reply ...

[Patrick]

How can i make the Clabiration ??
I will look the Settings of my TTGO in few Minutes so i can give you better Information

[Patrick]

SDA 21
SCL 22
RST 16
BUZ 0

RS41 3100
M10 12500
M20 12500
PIL 12500
DFM 10400
NAM SERIAL
Offset 0

This are my Settings on my TTGO

[IZ4PNN]

Hi,
you can set RS41 to 6300 (if you want to receive an RS41) or you can set the Offset.
To set the Offset you can use the calibration button (next to the Offset) but you need a reference signal or you can set it manually.

[Patrick]

Yesterday i Set the RS41 to 6300 and the last Night i goes to look if i can catch a Baloon and i recive the Signal with my Mobil Antenna conected to the TTGO 60km Away from my Home so its work. Now its time to wait at the next Landing and try to catch.
Thank you for the Answer to Set RS41 to 6300 i think this was the problem

[IZ4PNN]

Ok, this is because with the wider band the frequency shift of your TTGO is within.
If you calibrate your TTGO you can tighten the band to 3100.
This guarantees greater sensitivity (nothing miraculous but better).

[tecnatron]

Same problem on my MySondyGo.
updated SW & FW to last release: working fine! TNX to Mirko IZ4PNN

aggiornato il MySondyGo ora va come una spada! Grazie a Mirko, IZ4PNN!

Aki - IU0EUF