Closed Cloolalang closed 3 years ago
I would recommend you read the data sheet E32-433T20DC-成都亿佰特电子科技有限公司
E32-433T20DC-成都亿佰特电子科技有限公司
赛门仕博,www.symansbon.cn
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that unit is 410 mhz to 441 mhz. the channel sets the frequency within that range in 1mhz increments hence 31 different channels
Thanks, Kris Kasprzakkris.kasprzak@yahoo.com
On Monday, July 13, 2020, 12:45:33 PM CDT, Cloolalang <notifications@github.com> wrote:
Hi guys, am I incorrect with my discovery that my E23-TTL-100 433MHz lora Uart radio only does 1MHz channels?! So ISM band is 433.050 to 434.790 MHz where I am, The Bandwidth for Lora Phy at 0.3Kb on-air is 125KHz. That would allow for: 433.000 Channel 1 433.125 Channel 2 - not available on this device. 433.250 Channel 3 - not available on this device. 433.375 Channel 4 - not available on this device. 455.500 Channel 5 -not available on this device.
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Really? only 2 ISM 433 MHz usable frequencies?
Please tell me that these is better firmware for operating a finer frequency selection.
Please! Please! P
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Hi Kris, Thank-you for taking a look! OK so yes, I am correct, I can only legally use: channel 24 (434.000 MHz) assuming I reduce the output power to low enough and keep the duty cycle correct. Also I see that there does not appear to be any CAD mode implemented for the module (this is reduce collisions like "listen-before-transmit"). The other 30 RF channels cannot be used without a license. P
where is it written that the only legal frequency is 434 mhz?
On Tuesday, July 14, 2020, 04:00:46 AM CDT, Cloolalang <notifications@github.com> wrote:
Hi Kris, Thank-you for taking a look! OK so yes, I am correct, I can only legally use: channel 24 (434.000 MHz) assuming I reduce the output power to low enough and keep the duty cycle correct. Also I see that there does not appear to be any CAD mode implemented for the module (this is reduce collisions like "listen-before-transmit"). The other 30 RF channels cannot be used without a license. P
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Reply to this email directly, view it on GitHub, or unsubscribe.
Hi Kris. https://www.ofcom.org.uk/__data/assets/pdf_file/0028/84970/ir-2030.pdf See pages 21 & 22. p
The channel frequencies are based on the chip not much you can do about it
Hi guys, am I incorrect with my discovery that my E23-TTL-100 433MHz lora Uart radio only does 1MHz channels?! So ISM band is 433.050 to 434.790 MHz where I am, The Bandwidth for Lora Phy at 0.3Kb on-air is 125KHz. That would allow for: 433.000 Channel 1 433.125 Channel 2 - not available on this device. 433.250 Channel 3 - not available on this device. 433.375 Channel 4 - not available on this device. 433.500 Channel 5 -not available on this device.
.....
Really? only 2 ISM 433 MHz usable frequencies?
Please tell me that these is better firmware for operating a finer frequency selection.
Please! Please! P