RF Transmission Model Suggestions for ISM Bands?

Thread Starter

Mark Hughes

Joined Jun 14, 2016
409
Does anyone have experience modeling propagation loss over a real geographic area? (Longley-Rice, Okumura-Hata, SUI, COST231-Hata, etc...). I'd like to estimate the signal strength around a small geographic area (say <5 km radius) and then go out and physically measure it at a variety of points to test correlation.

The results may appear in a future AAC article series. Target frequencies in the ISM band from say 0.1-10 GHz (168 MHz, 433 Mhz, 900 Mhz, 2.4 GHz, 5.9 GHz)

1) Is there any free/paid software that you can recommend?
2) Is there a mathematical model that you believe is better than others (that I would then have to implement via matlab or mathematica)?
3) Is there a website or a person that you can recommend where I can begin my research?

I've found that it's pretty easy to go down a rabbit hole with this topic -- so I'd prefer people with first-hand knowledge to help guide my way.
Thanks,
Mark
 
Last edited:

BR-549

Joined Sep 22, 2013
4,938
My only experience was about 20 yrs ago. It cost a fortune and was suppose to eliminate site RF surveys.

It was a complete failure and cost the company greatly. Even on flat prairie.

Maybe it has improved by now. I stayed away from it.

Will be interested in your results. Good luck.
 

Thread Starter

Mark Hughes

Joined Jun 14, 2016
409
Well that's not encouraging. But it correlates with some of the first-order estimations I came up with today (that varied by 100 dB between models).
 

BR-549

Joined Sep 22, 2013
4,938
I didn't make a career of RF. There are RF experts on here. Maybe they could use drones for surveys now.

Stick around.
 
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