I've created a Nano-based project that uses a DHT11 to measure temp and an HC-SR04 to measure level in a container. Every 5 seconds it transmits that data over LoRa (RYLR 896 / 890) to a "repeater" RYLR radio, which transmits every 5 seconds to a third RYLR attached to my phone. To weather-proof, the assembly needs to be kept under and enclosure. Am I able to improve the transmission by just attaching a plain wire to the spiral antenna, to extend outside the enclosure? Or, if the enclosure is metal, can I just connect the antenna to the enlosure?
Why do you need to 'improve the transmission' ?
What LoRa settings are you using ?
Dont do that, you can destroy the LoRa device.
Hi, srnet - I'd like to extend the range of the radios, because they will be about 1 km apart from each other. Regarding the settings, I will start with the factory defaults. If necessary, I'll extend the range using the long range settings from Reyax's website. Thanks for letting me know that connecting to the metal enclosure was a bad idea. - Margaret
This will probably only work with a clear line of sight.
Take a search engine of your choice and ask the WWW for "LoRa propagation ".
They are likley to be Spreading Factor 7 and bandwidth 125Khz.
Long range settings would give you around 8 times the distance of those above.
And if the 1km is with TX and RX at say shoulder level in an urban area, you probably wont get 1km even with Long Range settings.
Typically the differance in range\propagation at 434Mhz between what you get with true and good line of sight, say ground to high altitude balloon, versus what you get in an Urban area for handheld stuff is more than 1000:1