nrf905: When using the auto-retransmit function, does the nrf905 also check the CD (carrier detect line) before sending?

Question

The nrf905 has a CD (carrier detect) pin that is pulled high if the nrf905 detects another device communicating on the same channel. This can be used on the MCU for collision avoidance. But what happens if you use the auto-retransmit function of the nrf905? 
 Does the nrf905 auto check the CD line or does it propagate the tx-package regardless of whether the CD line is pulled high or not? 
 thanks!

ovrebekk · Accepted Answer

Hi 
 The CD line does not affect the transmission in any way, it's just provided as a convenience to the application in case you want to use it. 
 If you have configured a certain number of retransmits it will not be affected by the CD bit. 
 It's important to remember that it's fully possible to transmit even if something else is present on the channel, it only means there is a larger risk that the packet will be lost due to interference. 
 Best regards
Torbjørn

nrf905: When using the auto-retransmit function, does the nrf905 also check the CD (carrier detect line) before sending?

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