Different frequencies modules, question.

Projects General Guidance
1

Hi,

I have a project which I should compare the speed and distances of many freq. (modules) or single module tx/rx, the main goal of this project is to be able sending data thru a exact freq and comparing the data in a table with other freq. sending the same amount of data at same distance.

What I'm trying to find right now is different module at different freq. transceivers and as well being at the same power (mW).

I need from 400mhz ~ 2Ghz.
I know about nRF which is at 2.4Ghz and xBee which is at 433Mhz ~ 900Mhz but I need as well lower or higher and "compatible" with arduino, examples..etc Ofc cheap price if possible ~5$ per module.
If you know any info that would help me a lot.

D.60

2

Your question makes no sense .
The frequency plays no part in the speed of transmission.
The technology used by the radio, particularily the modulation type and the bandwidth and signal to noise ratio of the receiver are what determine the data rate.
Can you explain a little better what you are trying to do?

3

The specifications published by the transceiver equipment manufacturers tell you everything you need to know.

Doing your own measurements will require thousands of dollars of RF test equipment.