Reference Manual
Table Of Contents
- Preface
- 1. Introduction
- 2. Basic Radio Programming and Setup
- 2.1. Setting the Radio's Role in the Network and the Network Type
- 2.2. Establishing Communication with Instrumentation and Computers
- 2.3. Establishing Communication with Other Radios in the Network
- 2.4. Designate the RF Transmission Characteristics
- 2.4.1. 900MHz Channel Select Parameters
- 2.4.2. 900MHz Frequency Key (Golden Setting)
- 2.4.3. 900MHz Frequency Zones
- 2.4.4. High Noise
- 2.4.5. 900MHz Hop Frequency Offset
- 2.4.6. 900MHz Hop Table Size
- 2.4.7. 900MHz Hop Table Version
- 2.4.8. Max Packet Size and Min Packet Size (Golden Setting)
- 2.4.9. MCU Speed
- 2.4.10. Remote LED
- 2.4.11. Retry Time Out
- 2.4.12. RF Data Rate (Golden Setting)
- 2.4.13. RTS to CTS
- 2.4.14. Slave Security
- 2.4.15. Transmit Power
- 2.4.16. Transmit Rate
- 3. Configuring Point-to-MultiPoint Networks
- 3.1. Point to MultiPoint Network Characteristics
- 3.2. Point-to-MultiPoint Network Quick Start
- 3.3. Point-to-MultiPoint Operation LEDs
- 3.4. Overlapping MultiPoint Networks
- 3.5. Establishing Communication with Other Radios in a MultiPoint Network
- 3.6. Routing Communications through the Network
- 3.7. Setting Other MultiPoint Parameters
- 3.7.1. 1 PPS Enable Delay
- 3.7.2. Diagnostics
- 3.7.3. DTR Connect
- 3.7.4. Local Mode
- 3.7.5. Master Packet Repeat
- 3.7.6. Master Packet Repeat in MultiPoint Networks with Repeaters
- 3.7.7. Max Slave Retry
- 3.7.8. Radio ID
- 3.7.9. Radio Name
- 3.7.10. Repeaters
- 3.7.11. Repeater Frequency
- 3.7.12. Retry Odds
- 3.7.13. Slave / Repeater
- 3.8. Conserving Power
- 3.9. Reading Diagnostics in Tool Suite
- 4. Configuring Point-to-Point Networks
- 5. Advanced Programming
- 6. Viewing Radio Statistics
- 7. Approved Antennas
- 8. FGR3 Wireless Data Radios Pinouts
- 9. Troubleshooting
- 10. FGR3 Release Notes
- Appendix A: FGR3 Technical Specifications
- Appendix B: FGR3 Board Level Mechanical Drawing
- Appendix C: 900MHz Factory Default Settings
- Appendix D: 900MHz Channel Frequency IDs
- Appendix E: FreeWave Legal Information
2. Basic Radio Programming and Setup
FGR3
User-Reference Manual
LUM0110AA Rev Jan-2019 Page 54 of 143 Copyright © 2019FreeWave
This document is subject to change without notice. This document is the property of FreeWave Technologies, Inc.
and contains proprietary information owned by FreeWave. This document cannot be reproduced in whole or in
part by any means without written permission from FreeWave Technologies, Inc.
2.4.8. Max Packet Size and Min Packet Size (Golden Setting)
Note: In MultiPoint networks, the Max Packet Size and Min Packet Size must be set identically in
all radios.
In Point-to-Point networks the Master radio's settings take precedence over the Slave radio.
Max Packet Size and Min Packet Size (Golden Setting)
Setting Description
Default Setting l Max Packet Size = 8
l Min Packet Size = 9
Options Any number between 0 and 9.
Terminal Menu (3) Edit TransmissionCharacteristics > (1) Max Packet Size and (2) Min
Packet Size
Description: The Max and Min Packet Size parameter settings and the RF Data Rate
parameter determine the number of bytes in the packets.
l Throughput can be enhanced when packet sizes are optimized.
l In Point-to-Point mode, the Max and Min Packet Size settings do not have
material impact on throughput unless 115.2 kbps is desired.
l However, this may have an impact on latency.
Example: If small amounts of data are sent and large packet sizes are
selected, a certain amount of time wasted between each packet would be
seen.
l In each over-the-air frame, both the Master and Slave are guaranteed the
number of bytes specified in the Minimum Packet Size parameter.
l In the Master, this is used for maintaining the RF link whether the Gateway
has data to transmit or not.
l The Maximum Packet Size parameter is used to allocate the maximum
number of bytes for each Master transmission.
l The Minimum Packet Size parameter is used to allocate the minimum
number of bytes for each Slave transmission.
l If the Master does not use all the bytes allocated in the Maximum Packet
Size setting minus the Minimum Packet Size setting, then the remaining
bytes are available for the Slave.
2.4.9. MCU Speed
MCU Speed
Setting Description
Default Setting (0) Normal