1. ATCA Wideband Continuum Operation
Few-GHz bandwidth interferometry

2. Wide bandwidths available from the new high frequency receivers.
Up to 8GHz bandwidth at 12mm and 3.5mm.
New single mode optical fibres provide means to transfer wideband signals.
Analogue optical links up to ~20GHz.
Wideband analogue correlator development.
AMiBA collaboration.

3. ATCA Wideband Continuum System Signal Path

4. Analogue Lag Correlator

5. Prototype Analogue Lag Correlator

6. Lag Correlator - CW Measurements

7. Frequency Response - Amplitude

8. Phase Response - Assumes tap spacing =
l/4
at 4GHz

9. Phase Response - Assumes tap spacing =
l/4
at 3.86GHz

10. Lag Correlator - Noise Measurements