Our First Weathex WxR301d recovered!

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Weerut Srhidhara

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Aug 11, 2023, 5:33:17 AM8/11/23
to radiosonde_auto_rx
Today, the eastern sonde recovery team has made an attempt to recover the WxR301d sonde. Mission started around 1535h and almost 2 hours to recover the payload due to the terrain (palm oil plantations and crossing a small creek).

This mission will never succeeded without the great help from Hamid 9M2TPT for donating the hardware, Zak 9M2ZAK configuring the hardware and setup, the eastern recovery team member and of cause the RS1729's decoder software from GitHub (so sorry I can't get your details)

To our surprise, the payload still transmitting upon recovery time 1712h, it was launched around 0800h today from Kuantan, which is around 70km away from recovered location.

Looking forward the the Weathex decoder to be implemented soon in Auto_RX (one very fine day)

Congratulation Fikri 9W2FVC and his daughter
WhatsApp Image 2023-08-11 at 17.12.14.jpegWhatsApp Image 2023-08-11 at 17.12.56.jpegMalaysia-map (2).png

Mark Jessop

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Aug 11, 2023, 7:43:55 PM8/11/23
to Weerut Srhidhara, radiosonde_auto_rx
Great to see these being recovered!

Supporting these in auto_rx is not impossible, but may be a little bit challenging. There are a few reasons behind this:
- The Weathex sondes are much wider in bandwidth than other 400 MHz sondes. This means that I'm going to need to add a 'wideband' mode to auto_rx to enable these to be detected. The presence of the two widely-spaced tones may also cause issues with peak detection.
- The preamble for the weathex sondes will need to be added to the detector code. I'm unsure if this will have impacts (e.g. false detections) on other radiosonde types.
- We need to know how to decode the serial number (on the label of the sonde) from what's in the telemetry.

Having one of these sondes as a sample will make supporting it in auto_rx a lot easier.

Are your launch sites using consistent frequencies? It may be possible to set up an 'always_decode' decoder instead of having auto_rx scan as an interim step.

Cheers,
Mark

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