When "Inverted logic" is used, then there is no RF carrier when the data line
is idle. Note that the inverted logic is not a must, but if you don't use it, the
code will be more complicated and you will have to use an I/O pin of the PIC
in order to control the PDN line of the transmitter.
When i trying to send in inverted mode whit SERIN (N2400 insted of T2400) the reciver doest work very well it misses many numbers.

If we look on the BS2 sample they using this
SEROUT TransmitterPIN, 84, [ "!", x.HIGHBYTE, x.LOWBYTE, y.HIGHBYTE, y.LOWBYTE ]
Shold i try to use SERIN2 insted like this?
SEROUT2 TransmitterPIN, 16468, ["!", x.HIGHBYTE, x.LOWBYTE, y.HIGHBYTE, y.LOWBYTE]