Пользователь:
"...Results of test of new version of the Radiocrafts tranceiver are worse. Usual probability of single connection is 0,7..0,85. It is funny this probability does not depend from power and distance!...
what changes have been implemented in firmware version 3.00 in comparison with version 2.20?"

Radiocrafts:
"The module version you are referring to (2.20 and 3.00) are hardware revisions. Functionally these versions are equal.
...can you also provide us with schematic and layout files (Gerber or PDF format) for further analysis.
Have you compared your test results with our development kit? Note also that the development kit can be used to test your hardware design. "

тут еще много переписки с пересылкой конфигураций, герберов и так далее.

Пользователь:
"We have found reason of the problem. 1 stop bit can be used with handshaking only. "

Radiocraft:
"Maybe you have old documentation. The latest documentation on our web site claim that you shuld use 2 stop bits if CTS is enabled."

Пользователь:
"I would like to forget about this history, but your words about last documentation make me nervious again.
Good practice in this matter is that if manufacture can't provide basic parameters of the product and new modification of the product is not compatible with the old version, name of product must be changed. As minimum, manufacture and distibuters have to inform customers about loss of compatibility.

And what is more, my direct question was : what change has been implemented in ver 3.00 - No answer from Radiocrafts."