<div dir="ltr"><div>Has anyone here tried 900MHz Wifi (aka HaLow)?</div><div><br></div><div>In certain conditions some people have managed kilometers and pretty good data throughput up to hundreds of metres.</div></div><br><div class="gmail_quote gmail_quote_container"><div dir="ltr" class="gmail_attr">On Wed, May 14, 2025 at 8:26 AM Mark Atherton <<a href="mailto:markaren1@xtra.co.nz">markaren1@xtra.co.nz</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">I think that line-of-sight is the issue.<br>
<br>
2.4GHz can easily be attenuated by walls, windows, & bananas.<br>
<br>
433MHz is much more able to penetrate same...<br>
<br>
<br>
On 14-May-25 7:49 AM, Charles Manning wrote:<br>
> It isn't clear how much data you want to move.<br>
> <br>
> Bluetooth LE using a coded PHY can get to around 1km line of sight with <br>
> just a trace antenna and that's a full 2-way solution.<br>
> <br>
> <a href="https://blog.nordicsemi.com/getconnected/tested-by-nordic-bluetooth-long-range" rel="noreferrer" target="_blank">https://blog.nordicsemi.com/getconnected/tested-by-nordic-bluetooth-long-range</a> <<a href="https://blog.nordicsemi.com/getconnected/tested-by-nordic-bluetooth-long-range" rel="noreferrer" target="_blank">https://blog.nordicsemi.com/getconnected/tested-by-nordic-bluetooth-long-range</a>><br>
> <br>
> <br>
> <br>
> On Tue, May 13, 2025 at 9:27 PM Robin Gilks <<a href="mailto:gb7ipd@gmail.com" target="_blank">gb7ipd@gmail.com</a> <br>
> <mailto:<a href="mailto:gb7ipd@gmail.com" target="_blank">gb7ipd@gmail.com</a>>> wrote:<br>
> <br>
> I'll try and address a few points<br>
> <br>
> * sx1278 maxes out at 500MHz so no LoRaWan as that's 915MHz here in NZ<br>
> * Bowtie antenna at 433MHz would be a bit big!! I've used them on<br>
> 2.4GHz though when I had the wind turbine on the other side of a<br>
> paddock with a WIFI Link<br>
> * 433MHz using $1 OOK radios (used on my weather station) if OK<br>
> for single 18650 cell power and a 1w 6v solar panel but only<br>
> reaches about 30m and then only with the receiver in the window<br>
> * Looking to update an old project that used NRF24L01 link from my<br>
> tunnel house back to either the workshop or the house. I'll be<br>
> sending LCD screen data updates one way and button presses the<br>
> other for full remote control<br>
> * Remote power is a 12v 120AHr car battery from the wreckers with<br>
> a 10w solar panel keeping in on float so 120mA TX current on<br>
> LoRa won't be a problem (I'm hoping to run without the PA turned<br>
> right up)<br>
> <br>
> The modules haven't arrived yet but a modded tunnel house window<br>
> controller PCB is modified and most of the code is ready to run once<br>
> I have something to connect up<br>
> <br>
> I see that they also do OOK - I wonder if they would make a better<br>
> receiver than the $1 ones on the weather station or if it's more<br>
> sophisticated OOK ;)<br>
> <br>
> <br>
> On Tue, May 13, 2025 at 5:22 PM Richard Jones<br>
> <<a href="mailto:richardandjanenz@gmail.com" target="_blank">richardandjanenz@gmail.com</a> <mailto:<a href="mailto:richardandjanenz@gmail.com" target="_blank">richardandjanenz@gmail.com</a>>> wrote:<br>
> <br>
> In the early days of wifi I had good success with wifi over 4km<br>
> from Diamond Harbour to Lyttelton using a bow tie antenna<br>
> similar to this one:<br>
> <a href="https://nz.pinterest.com/pin/759630662129071602/" rel="noreferrer" target="_blank">https://nz.pinterest.com/pin/759630662129071602/</a><br>
> <<a href="https://nz.pinterest.com/pin/759630662129071602/" rel="noreferrer" target="_blank">https://nz.pinterest.com/pin/759630662129071602/</a>><br>
> <br>
> Richard<br>
> <br>
> On Tue, May 13, 2025 at 5:08 PM Daniel Powell<br>
> <<a href="mailto:danielvieway@hotmail.com" target="_blank">danielvieway@hotmail.com</a> <mailto:<a href="mailto:danielvieway@hotmail.com" target="_blank">danielvieway@hotmail.com</a>>> wrote:<br>
> <br>
> ESPNow, or WiFi LR, both Expressive protocols. Wifi LR does<br>
> 1km line of sight or more with good antennas. ESPNow does<br>
> 500m line of sight, but again more with a reasonable<br>
> external antenna. ____<br>
> <br>
> __ __<br>
> <br>
> Daniel. ____<br>
> <br>
> __ __<br>
> <br>
> *From:*Chchrobotics <<a href="mailto:chchrobotics-bounces@lists.ourshack.com" target="_blank">chchrobotics-bounces@lists.ourshack.com</a><br>
> <mailto:<a href="mailto:chchrobotics-bounces@lists.ourshack.com" target="_blank">chchrobotics-bounces@lists.ourshack.com</a>>> *On Behalf<br>
> Of *Mark Beckett<br>
> *Sent:* Tuesday, 13 May 2025 4:53 pm<br>
> *To:* <a href="mailto:chchrobotics@lists.ourshack.com" target="_blank">chchrobotics@lists.ourshack.com</a><br>
> <mailto:<a href="mailto:chchrobotics@lists.ourshack.com" target="_blank">chchrobotics@lists.ourshack.com</a>><br>
> *Subject:* Re: [chbot] LoRa peer to peer____<br>
> <br>
> __ __<br>
> <br>
> I've played with NRF24L01 and easily done 400m.____<br>
> <br>
> On eissue is with the high power versions you need a bit of<br>
> physical seperation otherwise it seems to overwhelm the<br>
> front end.____<br>
> <br>
> __ __<br>
> <br>
> There is a lot of discussion on LoRa and hardware on the<br>
> discord<br>
> <a href="https://discord.com/channels/1215950134874210334/1218106537403220018" rel="noreferrer" target="_blank">https://discord.com/channels/1215950134874210334/1218106537403220018</a> <<a href="https://discord.com/channels/1215950134874210334/1218106537403220018" rel="noreferrer" target="_blank">https://discord.com/channels/1215950134874210334/1218106537403220018</a>>____<br>
> <br>
> They mainly use 915 Mhz.____<br>
> <br>
> __ __<br>
> <br>
> Mark____<br>
> <br>
> On 13/05/25 14:59, Robin Gilks wrote:____<br>
> <br>
> I'm looking for a radio link that has a bit better range<br>
> than an NRF24L01 which I have found doesn't really make<br>
> 100m reliably. Got some sx1278 modules (for use on<br>
> 433MHz) on order so I'll be able to experiment but any<br>
> pointers or experiences in other than LoRaWAN ?____<br>
> <br>
> __ __<br>
> <br>
> Cheers____<br>
> <br>
> <br>
> -- ____<br>
> <br>
> Robin Gilks ____<br>
> <br>
> __ __<br>
> <br>
> <br>
> <br>
> ____<br>
> <br>
> ___________________________________________________<br>
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