SATELLINE-M3-TR3,
–
TR4 and -R4
Integration Guide, Version 3.4
39
All radio modems of a system must have identical FEC (ON or OFF) and Scrambling (ON or OFF)
settings.
The implementation of Radio compatibility options is based on the reference measurements
and the available public data of the following radio modems manufactured by Pacific Crest
Corporation: ADL, RFM96W, PDL HPB, PDL LPB. TRIMTALK is a trademark of Trimble Navigation
Ltd.
9.15.1 Settings in compatibility modes
In order to use the Pacific Crest/TRIMTALK modes implemented in SATELLINE radios:
PACIFIC CREST modems must have:
•
Protocol Mode
•
Transparent w/EOT Timeout (when using Pacific Crest modulations)
•
TrimTalk 450s (when using TRIMTALK GMSK modulation)
•
Modulation Type depends on the system
•
GMSK (default, always selected when using TRIMTALK 450s mode)
•
4-Level-FSK
•
FEC = ON/OFF
•
Scrambling = ON/OFF
•
Data Security Code set to = 0 (=not used)
•
Local Address= 0…254 (0 by default)
Pacific Crest modems receive messages from SATELLINE modems that have their TX1
address matching the Local Address.
Remote address=0…255 (255
by default, that is the broadcast address to be received by all).
SATELLINE modems receive the message from a Pacific Crest radio, provided their RX1 address
matches the Remote Address of a Pacific Crest transmitter (or if the message has the broadcast
address 255).
SATELLINE modems must have the following key settings:
•
FEC OFF (because the FEC here means SATEL 3AS FEC, not Pacific Crest/TRIMTALK FEC)
•
Error check OFF
•
Error Check mode OFF
•
Radio Compatibility Option according to the list (setting dependent)
When TX address is selected ON, then TX1 address is used like PDL Remote address that is the
destination address for the transmitted messages. Default value is 0x00FF (=255) (note the
hexadecimal format of the setting).
When RX Address is selected ON, then RX1 address is used like PDL Local address. Default value
is 0x0000 (=0) (note the hexadecimal format of the setting).
Addresses are NOT applicable in TRIMTALK 450s mode so SATELLINE modems must have their
RX/TX addresses OFF with Option3.