Mode Zero

Hi Max, I think the low amplitude is down to how the hopping code and the scanner work together:
First the transmitter: the NRF code sends a very small packet of a couple of hundred microseconds, every 5ms, so Its utilisation of each channel is under 5% (MU ).
And the scanner: the NRF24 has no facility for RSSI, it can only tell us if the signal on any channel is above or below -64db, so its more of a "carrier/no carrier", yes or no signal. Martins code uses this to detect the amount of time any channel is in use, ie has an active carrier on it - it cant test the carriers signal strength.
So in combination we have a transmitter that transmits for only a tiny fraction of the timeslot, and a scanner that displays the amount of time a channel is occupied. I think this is why the peaks are much lower than say DSM2 or any high MU source like FASST
A high MU is good if you are the only one to have it - its not so good when everyone has high MU gear
Like everyone shouting in a noisy pub! Hence ETSI EN 300 328 V1.8.1. 2

MaxZ wrote: ↑09 Jul 2020, 11:56I made a scanner using a Tstar Tech red board, using the code version that Phil created for it.

just to be fair I didnt create anything, its 100% Martins code I only changed a couple of configuration options - asking for sprinkles doesn't make me a Gelatist
Cheers
Phil

Ummmmmm.... how does that work Martin? How come the two left-most screens display an output without any connection to data or clock? Is that a really good photoshop job, some whacky parasitic crosstalk or some devious cabling under the breadboard?

Phil_G wrote: ↑28 Jan 2023, 10:26 For the photo Martin simply moved the yellow & white clock and data connections along the displays, to save wiring it 3 times
Thats why the 3 DSM2 plots differ slightly, the displays were clocked a few seconds apart after moving the connections and resetting the RF-Nano.
As long as power remains the display retains the screen contents without clock & data, its a static device
Cheers
Phil

Phew!.. thanks for the explanation Phil......I thought I was going to have to re-evaluate my understanding of breadboard construction there......