21–25 Sept 2026
Talley Student Union
America/New_York timezone
GRCon26 Call for Participation is Now Open

How to share clocks for phase coherency that suits your needs

24 Sept 2026, 10:15
30m
Mountain Ballroom (Talley Student Union)

Mountain Ballroom

Talley Student Union

Talk Massive MIMO and synchronization Main Track

Speaker

Jan Schirok (Emerson)

Description

Building multi antenna systems with many RF channels is a challenge that includes multiple aspects - apart from the RF frontend, cabling, the SDR itself, it usually requires sharing clocks between SDRs.

There are many ways to do that - from only using internal references, distributing 1 PPS (1 Hz) signals, sharing 10 MHz references, all the way to sharing multi GHz Local Oscillator clocks between devices. It could even include additional synchronization signals being shared.

This talk will explain the various ways and complexities of sharing clocks and LOs as well as showing actually measured accuracies that can be achieved using some recent SDRs. It will also map those accuracies back to a few real world examples. That way - users can pick the best suitable approach and trade accuracy and clock distribution complexity.

Talk Length 30 Minutes
Acknowledge Acknowledge In-Person

Author

Jan Schirok (Emerson)

Presentation materials

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