Spectra Precision ADLCONF User Guide - Manual (Page 15)

15 ADLCONF User Guide
percentage of received data packets drops under 90%.
Link Rate
This is the rate at which data bits are transmitted or received by the radio modem. The
radio must both receive and transmit at the same rate. The default link rate for all ADL
radios is 9600. You can select a different rate from the list:
Modulation Type
This enables you to configure your radio for either Gaussian Minimum-Shift Keying
(GMSK ) modulation or 4-Level Frequency-Shift Keying (4FSK ) modulation. The default is
GMSK because GMSK is generally less sensitive to interference from environmental noise.
However, 4FSK modulation supports approximately twice the data throughput of GMSK.
When you are using a link rate above 9600, the general recommendation is to use 4FSK
modulation. To switch to 4FSK modulation, select it from the list:
Not all data protocols support 4FSK modulation. If you try to program the radio after
selecting a protocol type on the Serial Interface tab that is incompatible with the selected
modulation type, the following message appears: