Javad TRIUMPH-1 Configuration Example page 9

UHF Base & Rover Configuration Example
Rover Configuration
How to create new/edit receiver style
9. Set the following base UHF modem parameters and than click Next:
• Protocol: Simplex
• Modulation Type: DQPSK
• Output power (dBm/W): 30/1.00
• Frequency (MHz): 406 to 470
• Forward Error Correction
2
• Scrambling : ON
1. Allows the receiving modem to correct burst and single bit errors in the incoming data stream. When enabled, an additional 4
bits per byte of data is transferred over the RF link. This effectively reduces the data throughput in proportion to the overhead
bytes. Leave FEC enabled unless the data throughput requirements make the overhead unacceptable.
2. Enable or disable data scrambling. Select the Scrambling check box if you want data to be scrambled. Otherwise, keep it clear.
For optimal operation of the GMSK modulation, data should be scrambled. When enabled, the radio modem scrambles and
unscrambles the data on transmission or reception via an exclusive-OR operation with a pseudo-random bit stream. Do not
disable scrambling unless the DTD performs data scrambling and produces a data stream with approximately the same number
of 1's and 0's.
9
Figure 2-13. UHF modem settings
1
: ON
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