Page 8 of 10 TN-1114-AN
© Tait Electronics Limited 21 December 2005
4. Select one of the Extended bypass check boxes. This selects the
other Extended bypass check box as well. (You cannot configure
extended bypass separately for the transmit and receive paths.)
7 Performance Specifications
Extended bypass has been tested with external modems as follows:
The performance figures given in these specifications are typical, and are
supplied only as a guide to the expected performance. The actual
performance achieved by your system will depend on the specific external
modem used, and the interface levels into the TB8100.
narrow bandwidth C4FM 9600bps
external modem based on a CML FX919 chipset
narrow bandwidth GMSK BT=0.5, 4800bps
external modem based on a CML FX489 chipset
wide bandwidth GMSK BT=0.5, 9600bps
external modem based on a CML FX489 chipset
NB C4FM NB GMSK WB GMSK
Minimum Receiver RF Level for a Robust Link ––
a
–109dBm
(0.79µV)
–109dBm
(0.79µV)
Strong Signal Packet Error Rate (PER)*
*for RF levels of 0dBm
<10
-4
<10
-4
<10
-4
Signal Displacement Bandwidth >1kHz >1kHz >2kHz
Selectivity ––
a
71dB 79dB
Modulation Fidelity*
*measured as Error Vector Magnitude, through combined
receive and transmit paths
3.5% 6% 6%
a. Unavailable at time of publication.
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