How does Flex 6700 manage 165Mhz RX

Amos Sobel

Hi

Flex 6700 does receive up to 165MHz using 2x ADC of 123Ms/Sec. This can't be direct sampling. Is there a Transverter inside or some special trick using 2x ADC's?

Amos 4X4MF

Bob K8RC

The sample rate you quote is that of a 6300/6400.

The 6700 has 2x 245.76 msps ADCs.

Amos Sobel

Bob

Please see:

Will I notice the difference between ADC Sampling Rate of 122.88 vs 245.76 Msps (6400 vs 6600)? — FlexRadio Community

Amos 4X4MF

Bob K8RC

Your citation is not relevant to your original question.

Have a nice day.

Lasse SM5GLC

I guess they are using harmonic sampling... As the spectrum folds around fs, one can use the 2:d Nyquist zone between fs/2 and fs with proper frontend filtering. All depending on the analog part of the A/D

https://www.analog.com/media/en/training-seminars/tutorials/MT-002.pdf

Tim - W4TME

We use multiple Nyquist zones. See the response from Steve N5AC in this community post.

https://community.flexradio.com/discussion/6609839/how-about-covering-monitoring-fm-aero-bands