ultra fast and low delay wireless transceiver module

[nixmd]

I am looking for a low delay wireless module which can send and receive data in a very short time.
Data length is just a few bytes generated by a microcontroller connected by UART/SPI interface.
The application requires repetitive send and receive of data in less than 10ms, which means time required to send data and receiving the reply from the second device must not exceed 10ms (repetitively)
I had used RXQ2 wireless module which was a really awesome, but for some reasons I have to find another module which can provide me this requirement.
Do you have any experience in this field? can you suggest me a replacement for RXQ2 with this requirement?

P.S: I have test these modules and none of the could handle this requirement:

    nrf24l01
    amplified nrf24l01
    DRF7020d20
    HMTRP
    ESP8266MOD (transceiving time was lesser than 10ms but amount of time required by module to be able to accept new buffer of data was much more than 200ms)

[hcglitte]

Hi,

Have you looked into the cc series from TI? There is a lot more to consider when making specs for a wireless link.
Range? Compactness - low frequency gives you longer range (6 dB more per frequency halfing), but the antenna must be larger to achieve good antenna efficiency.
So, in practice a higher frequency may yield longer range.

The smaller the receiver bandwidth, the lower the noise floor and hence the better receiver sensitivity. But this is at the expense of lower datarate to achieve lower occupied transmission bandwidth to fit the RX bandwidth.

Every packet for a normal FSK/GFSK based modem consist of a preamble, sync word, payload and CRC. Some require only a couple of preamble bits.
You could use 16 bits sync, but this would lead to a lot of false packets. So there are many trade-offs to consider.

I would read up on the basics. I use CC112X from TI. Read all the literature available on their site, and the e2e forum as a starter.