dl9rdz
commented
1 year ago Hi,
The ttgo will not look at other frequencies. Unlike the RTL-SDR, which can scan a 2 MHz wide band simultaneously, the TTGO is limited to receive a single frequency. You can define a list of frequencies it iterates over. It also cannot decode multiple sonde types in parallel, each type needs a separate entry in the list (except for very similar decoders, like DFM6/DFM9, or M10/M20, these can select the exact type automatically)
There is one feature which allows automated updates of frequencies over the Internet using sondehub (or other services with same API). This does not enable the detection of completely new signals, but if someone else is receiving a signal at a location close to you and uploading that to sondehub. the corresponding frequency can automatically be added to your list on the TTGO.
Cheers, Hansi, dl9rdz
On 18 Nov 2022, at 19:25, lelun @.***> wrote:
Hi i have just reviced my ttgo and managed to flash it, i normaly use a RTL-SDR for ballon opservations but i hope the ttgo will automate ballon opservations for me and allow me to better judge if i want to go on a hike or not.
will the ttgo look at other frequencys then the ones defined in the QRG? my local launch site have a habbit of randomly changing frequencys and there is no good way to make a QRG for this station. so during todays test run i manualy defined the frequency after checking with my rtl-sdr, is it able to look for a strong signal on its own and start decoding on its own without a defined QRG entry?
also there is the plaucebility of 2 types of sondes operating in my area will it be able to switch from the M20 / RS41 on its own with out a QRG or do i have to set up 2 sets of QRG for both sonde types?
i was unable to find answers to thise questions on the wiki, but i have found simular topics discussed before.
otherwise i want to say i really like this software and it looks like it. it was really relieble during todays test run after i connected it to my rtl/sdr antenna and manualy defined the freq via the QRF. todays opservation https://sondehub.org/208-2-00292 device is a TTGO LORA v2.1_1.6 software version is rdzTTGOsonde-master_v0.9.2
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lelun
Hi i have just reviced my ttgo and managed to flash it, i normaly use a RTL-SDR for ballon opservations but i hope the ttgo will automate ballon opservations for me and allow me to better judge if i want to go on a hike or not.
will the ttgo look at other frequencys then the ones defined in the QRG? my local launch site have a habbit of randomly changing frequencys and there is no good way to make a QRG for this station. so during todays test run i manualy defined the frequency after checking with my rtl-sdr, is it able to look for a strong signal on its own and start decoding on its own without a defined QRG entry?
also there is the plaucebility of 2 types of sondes operating in my area will it be able to switch from the M20 / RS41 on its own with out a QRG or do i have to set up 2 sets of QRG for both sonde types?
i was unable to find answers to thise questions on the wiki, but i have found simular topics discussed before.
otherwise i want to say i really like this software and it looks like it. it was really relieble during todays test run after i connected it to my rtl/sdr antenna and manualy defined the freq via the QRF. todays opservation
device is a TTGO LORA v2.1_1.6 software version is rdzTTGOsonde-master_v0.9.2