Hi Z,I'm also using 0023.I made a clean install on netbook and copied your RF22 library (from your post above) into the clean libraries folder.Copied the code (from above) and made a new pde called 'rf22_specan_simple' and veried it.It compiled OK.Ran up your RF22SpecScan.exe and it runs fine.I'll try some more later on my main PC and Laptop as this is where I want to mostly use it.Nigel.
if you look at the picture with only the RF22 switched on that is working as the receiver it would appear that there is a very high signal detected in the UHF range where i stay ? or am I seing it wrong ?also the labeling of the dBs on the left hand side would it not make more sence if it started form -120 at the top and -20 at the bottom? I arleady made the mistake at looking at the spike but in reality if i understand it correct is actually the lowest detected frequency that im looking at , can it be swapped ?
thanx for confirming that . so for example if the RF22 radio max output is 17-20dBs then if i transmit next the the analyzer i will see a 20 dB jump in the graph but so if it was -120 it will be -100 or around there.
regarding the Antenna issue , all i really wanna test with these unit is if RF equipments is working or not. for example if i have a 433mhz remote i just want to Tx next to it and see a jump in the graph so Accuracy is not that big of a problem. what i think i would do is make a small Antenna relay board with antenna's made for 900mhz, 433mhz and 600mhz and when i switch between them the reply will latch to the correct antenna Automatically i know its not the best but i think it will be best this setup can do. are you planning on upgrading the Pc app with more functions ?like to see if you can set a start line on the average incoming signal and the app will update the max output line at the top of the graph and under the setting just show a tab that updates the dB difference between the two lines.
This is and excellent project! I really want to try it out in my FPV quads.Does anyone has PCB's to sell? Unfortunately I have no way to make them. (well I could but I'd probably ended up sleeping in the balcony)Thanks!
Basically what Devonian said. If you want one or two boards that work right out of the box, you are better off getting the openlrs. I only have the bare pcbs.
Hi zitron,Where did you get your RFM22B? The only that I can find seem to have the emitting power locked and can't do the 100mW.Thanks
I know about Flytron gear I actually bought some other parts from them, but yes my intention is to get bare PCB's.I have all the remaining parts just the PCB that is missing.I got some time ago some similar RFM boards (RFM21 I believe) to do a telemetry project but got sidetracked and ended going for BlueTooth and developing an app for it. And the the boards are still here getting dust.But what you share here is on a another level (special in what concerns range) and rather interests me, so I eager to try it and put my hands on the code as well.
My first board works just fine as a spec analyser.I've yet to build my other boards.I'm a bit like you, no big motivation for UHF at the moment (I have OpenLRS for UHF R/C), plus I have a couple other projects - including weather monitoring, maybe with an RFM22B and an Arduino
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