Hello,
We've been working on establishing an interface between GNU Radio and a Flex-6500 radio where ideally GNU Radio would send IQ samples to the Flex-6500 to transmit. We've found a file called TXAudio Stream written by Flex Radio (https://github.com/cjam/FlexlibMono/blob/caa5c3c94212b725bceeac705ad3dbc51718f8c1/src/FlexLib/TXAudi...) where it seems that we can pipe samples into a TXAudio stream object to be sent to the Flex-6500 for transmitting. After looking at this file,https://community.flexradio.com/flexradio/topics/new/add_details?post_flow=true&topic%5Bsubject%5D=Using+TXAudio+class+to+send+IQ+samples+to+Flex-6500+to+transmit we have some questions:
- The class formats the audio as a stream of floats into a VITA-49 packet. Once this stream is sent, how does the Flex utilize it? Does it send it as is or does it perform some additional processing on the samples?
- Could this class be used to send IQ samples instead of audio samples? If so, what additional changes would be required? We haven't seen anyone try to send IQ samples to a flex radio for transmission. Are there are any specific hardware limitations preventing this? Does the Flex-6500 even allow external IQ samples to be sent to it for transmission?
- Our final question is regarding this line of code, of which a screenshot is attached : _txDataEndPoint = new IPEndPoint(_radio.IP, 4991); It seems that 4991 represents a specific port number. If we wanted to transmit IQ samples instead of audio samples, would a different port number be required?
Thanks,
Noel Teku
We've been working on establishing an interface between GNU Radio and a Flex-6500 radio where ideally GNU Radio would send IQ samples to the Flex-6500 to transmit. We've found a file called TXAudio Stream written by Flex Radio (https://github.com/cjam/FlexlibMono/blob/caa5c3c94212b725bceeac705ad3dbc51718f8c1/src/FlexLib/TXAudi...) where it seems that we can pipe samples into a TXAudio stream object to be sent to the Flex-6500 for transmitting. After looking at this file,https://community.flexradio.com/flexradio/topics/new/add_details?post_flow=true&topic%5Bsubject%5D=Using+TXAudio+class+to+send+IQ+samples+to+Flex-6500+to+transmit we have some questions:
- The class formats the audio as a stream of floats into a VITA-49 packet. Once this stream is sent, how does the Flex utilize it? Does it send it as is or does it perform some additional processing on the samples?
- Could this class be used to send IQ samples instead of audio samples? If so, what additional changes would be required? We haven't seen anyone try to send IQ samples to a flex radio for transmission. Are there are any specific hardware limitations preventing this? Does the Flex-6500 even allow external IQ samples to be sent to it for transmission?
- Our final question is regarding this line of code, of which a screenshot is attached : _txDataEndPoint = new IPEndPoint(_radio.IP, 4991); It seems that 4991 represents a specific port number. If we wanted to transmit IQ samples instead of audio samples, would a different port number be required?
Thanks,
Noel Teku
Posted 1 month ago
