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    SX126x LoRa modules !

    SNR does not help you much to identify the actual noise level, since it just tells you relationship between the strength of the received signal and the noise level. So unless the received signal level is a known constant ............. There is a command for the SX126X that tells you the...
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    SX126x LoRa modules !

    Using a bandwidth of 20khz should be workable, long packets maybe, but together with SF12 should give you 3 times the range over your current settings. There are no LoRa settings I have found that dont work when properly configured, but at higher than SF11 with bandwidth lower than 125khz...
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    SX126x LoRa modules !

    What LoRa settings are you using, Spreading factor, bandwidth and code rate ?
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    SX126x LoRa modules !

    I can assure you the datasheets for the SX126x and SX127X and SX128X have the correct calculations. You will get RSSI of circa -40dBm for a strong signal and circa -122dBm for a weak one on the very limit of working. RSSI is power relative to 0dBm, so an RSSI of 158 would be...
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    SX126x LoRa modules !

    RSSI is a negative value. As signals get weaker it get more negative. For you application speed would appear not to be a problem, so on long range settings the standard 100mW LoRa module should reach through 5 - 10km of (flat) forest, perhaps more, and with simple wire antennas.
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    SX126x LoRa modules !

    Well RSSI (Received Signal Strength Indicator) reports signal strength and is mentioned as such in the LoRa device datasheets. SNR is a beter indication of how good the signals are when reception is close the the limit, as discussed here...
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    SX126x LoRa modules !

    One benefit of using LoRa radio devices for remote monitoring is appreciated when you realise that most all LoRa devices allow you to reduce the transmitted power level, you dont need to run on 100mW max all the time. An SX1262 running at 1mW transmit power will probably have a longer range...
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    SX126x LoRa modules !

    Read this; This was at 1562bps, the summary is that @ 50mw you should get around 2km, when the TX is lying on the ground in the forest ......
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    SX126x LoRa modules !

    Well the SX1280 is no slouch, high data rates at longish distance and no duty cycle limits. Not keen on the modules that put a UART in front of the device, that Micromo module might provide direct access, but they want you to register to see the datasheet ................ I do have a 'SX1261...
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    SX126x LoRa modules !

    The performance of the TCXO equipped SX1262 is reported on here; In summary, operation out of the box at 7.8khz, even if one device is at +20C and the other is at -20C. Its true that the SX1262 has half the receive current, but the...
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    $osat - Whatever happened to?

    It did have solar power. Expected lifetime, if the Solar power had failed, was around 2 days on the fully charged battery.
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    $osat - Whatever happened to?

    It stopped working after 20 months in Orbit. By looking at all the collected telemetry we surmised that the solar panels had degraded so much that there was not enough power from them to keep the $50SAT going. Its normal to cover the panels with a coating or glass to protect them, we did not...
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    PICAXE not in Space

    $50SAT the PICAXE powered PocketQube satellite has recently returned home, as you can see if you try to track its current location; With a de-orbit window of 2 hours, we have no idea where its remains ended up. It was fun. There are now no PICAXEs in...
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    PICAXE in Space - Again

    The TUPOD launcher came out of the International Space station on Monday as planned and after the required 3 day delay, the Tubesats were ejected and the TUPOD beacon went active. The TUPOD launcher has a PICAXE powered Morse beacon and...
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    Electromagnetic Field - Loseley Park, Guildford, August 5–7 2016.

    If anyone is going to Electromagnetic Field next week, I will be there giving a talk on the Worlds first PICAXE powered Satellite. LoRa will likley get a mention at the end of the talk too, its not been tried in orbit...
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    $50SAT, the PICAXE powered satellite, is Silent.

    Michael Kirkhart, KD8QBA; Tuesday, July 21, 2015 marked the 20 month anniversary of the launch of $50SAT/MO-76/Eagle2, and unfortunately, it appears to have gone silent. The last time I heard it was on Sunday, July 19, 2015, 08:42 UTC from Anton's (ZR6AIC) WebSDR. A screenshot of the WebSDR...
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    CE Marking

    I have been trying to get a definitive answer as to whether you can apply ‘self-certification’ to an electronic product that includes a transmitter. You may have seen my various posts on the LoRa transmitters, and there is potential for a marketable product there. However it’s not clear if...
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    TFT LCD displays - Serial Driven ?

    There are quite few cheap TFT LCD Colour touch screens appearing these days in the 2" - 4" sizes on eBay. No doubt because they are manufactured in such large volumes for modern mobile phones. Does anyone know if there are any that can accept serial (RS232\TTL) input as a means of using these...
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    HABAXE2 - PICAXE and LoRA High Altitude Balloon Tracker

    Well it darn works, ought to after all the testing. You can see where its getting to here; Currently 110km south of Paris at 8000M. The temperature is being reported incorrectly (it has a -128 offset), but the real temperature at altiude in the dark is down to...