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com:jdrf900p [2019/05/07 11:48]
metro
com:jdrf900p [2019/05/07 12:00]
metro
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 Product link: http://​store.jdrones.com/​jD_RD900Plus_Telemetry_Bundle_p/​rf900set02.htm Product link: http://​store.jdrones.com/​jD_RD900Plus_Telemetry_Bundle_p/​rf900set02.htm
  
-=== 1 KEY FEATURES === +==== 1 KEY FEATURES ​==== 
  
 jD-RF900 provides compact and yet powerful data communication. The key features are: jD-RF900 provides compact and yet powerful data communication. The key features are:
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 jD-RF900 sets is designed to be compliant to AS4268:​2012,​ and FCC 15.247 jD-RF900 sets is designed to be compliant to AS4268:​2012,​ and FCC 15.247
  
-=== 2 SPECIFICATIONS ===+---- 
 + 
 +==== 2 SPECIFICATIONS ​====
  
  
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 ^Receive Current |~60mA| ​ ^Receive Current |~60mA| ​
  
-=== 3 SOFTWARE / GCS SUPPORT ===+---- 
 + 
 +==== 3 SOFTWARE / GCS SUPPORT ​====
  
 The software solution (see Useful Links) is an open source development which is also compatible with jD-RF900 Modem Tools (see Useful Links) and the 3DR Radio Config (see Useful Links) from 3D Robotics. It is called “SiK” and was created by Mike Smith and improved on by Andrew Tridgell and RFDesign. ​ The software solution (see Useful Links) is an open source development which is also compatible with jD-RF900 Modem Tools (see Useful Links) and the 3DR Radio Config (see Useful Links) from 3D Robotics. It is called “SiK” and was created by Mike Smith and improved on by Andrew Tridgell and RFDesign. ​
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 ● Automatic antenna diversity switching on a packet basis in realtime • Automatic duty cycle throttling based  on radio temperature in order to avoid overheating ● Automatic antenna diversity switching on a packet basis in realtime • Automatic duty cycle throttling based  on radio temperature in order to avoid overheating
  
-=== 4 ANTENNA CONNECTIVITY ===+----
  
-== 4.1 Diversity ==+==== 4 ANTENNA CONNECTIVITY ==== 
 + 
 + 
 +=== 4.1 Diversity ​===
  
  
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-== 4.2 Types of Antennas ==+=== 4.2 Types of Antennas ==
  
 Below are some examples of the antennas that can be used with jD-RF900 modems Below are some examples of the antennas that can be used with jD-RF900 modems
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 The half wave Dipole antenna has approx 3dBi gain with an omnidirectional radiation pattern. It is suited for ground station, or large airborne applications. ​ The half wave Dipole antenna has approx 3dBi gain with an omnidirectional radiation pattern. It is suited for ground station, or large airborne applications. ​
  
-=== 5 AT COMMANDS ===+---- 
 + 
 +==== 5 AT COMMANDS ​====
  
 The jD-RF900 modem can support the Hayes ‘AT’ modem command set for configuration. The AT command mode can be entered by using the ‘+++’ sequence. When doing this, you have to wait for 1 second before and after entering the command mode in order to prevent data being interpreted as data. When you are successfully in the AT command mode, an ‘OK’ prompt will be displayed on the screen and the jD-RF900 modem will stop displaying information from the other modem. Whilst in AT mode, you can use the AT commands to control the local jD-RF900 modem or the RT commands to control the remote modem. ​ The jD-RF900 modem can support the Hayes ‘AT’ modem command set for configuration. The AT command mode can be entered by using the ‘+++’ sequence. When doing this, you have to wait for 1 second before and after entering the command mode in order to prevent data being interpreted as data. When you are successfully in the AT command mode, an ‘OK’ prompt will be displayed on the screen and the jD-RF900 modem will stop displaying information from the other modem. Whilst in AT mode, you can use the AT commands to control the local jD-RF900 modem or the RT commands to control the remote modem. ​
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 |RT&​T[,​x]| Disables debugging report|  ​ |RT&​T[,​x]| Disables debugging report|  ​
  
 +----
  
-=== 6 AIR DATA RATE ===+==== 6 AIR DATA RATE ====
  
 An air speed of 64kps will give a range of about 40km depending on antenna. If the air speed is set to be lower, the range of the wireless link increases but the amount of data that you can send will be limited. Therefore one has to compromise between range and data rate. The data rates that you can choose are only limited to 2, 4, 8, 16, 19, 24, 32, 48, 64, 96, 128, 192 and 250.  An air speed of 64kps will give a range of about 40km depending on antenna. If the air speed is set to be lower, the range of the wireless link increases but the amount of data that you can send will be limited. Therefore one has to compromise between range and data rate. The data rates that you can choose are only limited to 2, 4, 8, 16, 19, 24, 32, 48, 64, 96, 128, 192 and 250. 
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 ● whether you have APM firmware with adaptive flow control ​ ● whether you have APM firmware with adaptive flow control ​
  
-=== 7 NETWORK OPTIONS ===+---- 
 + 
 +==== 7 NETWORK OPTIONS ​====
  
 jD-RF900 can be implemented in either simple pair (V1.x, V2.x) or multipoint (V2.x Only). jD-RF900 can be implemented in either simple pair (V1.x, V2.x) or multipoint (V2.x Only).
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 ●       More nodes will reduce the bandwidth. ​ ●       More nodes will reduce the bandwidth. ​
  
-=== 8 USEFUL LINKS ===+---- 
 + 
 +==== 8 USEFUL LINKS ====
  
 RFD900 Modem module Firmware:\\ RFD900 Modem module Firmware:\\
com/jdrf900p.txt · Last modified: 2019/05/07 12:00 by metro