From: <Chris.Phillips_at_email.protected>
Date: Fri, 27 Aug 2010 08:40:35 +1000

FYI

I removed the attachments - I can send them directly if you want to see them

Cheers
Chris

------------------------------------------------------------
Chris Phillips
CSIRO ATNF eVLBI project scientist
Office: (+61) (0)2 93724608 Mobile: (+61) (0)439487601

Begin forwarded message:

>From: Bob Campbell <campbell_at_jive.<!--nospam-->nl>
>Date: 26 August 2010 11:48:20 PM AEST
>To: "evntech_at_jb.<!--nospam-->man.ac.uk" <evntech_at_jb.<!--nospam-->man.ac.uk>
>Subject: EVNtech: real-time e-VLBI fringes to Hartebeesthoek at 896 Mbps
>
>Hello everyone --
>
>Today was the first scheduled e-EVN day after the summer, and it included
>a real-time e-VBLI fringe test for Hartebeesthoek. We are very pleased
>to announce that we have obtained good fringes over a total data rate of
>896 Mbps in a 1024 Mbps observing mode, using the channel-dropping method
>employed regularly for other EVN stations. The attached plots show about
>4 minutes of data from a scan of 1156+295 on baselines formed from
>Medicina--Onsala--Torun--Hart:
>hh896.al.gif -- amplitude vs. lag
>hh896.af.gif -- amplitude vs. freq
>hh896.pf.gif -- phase vs. freq
>All plots were made after setting the stations' clock offsets and rates.
>Polarizations are color-coded: red=RR blue=LL. The 896 Mbps transmitted
>corresponds to the lower 7 dual-pol, 2-bit sampled, 16MHz channels.
>The frequency range in this L-band 1024 Mbps mode range from 1600.49--1728.49
>(the lower response in the first Mc subband is expected due to RFI
>countermeasures at the station).
>
>Today's observations are the first fringes we've had from Hart since
>their polar-mount bearing casualty, and the highest-rate real-time
>e-VLBI fringes we've ever had from Hart -- excellent news on both fronts.
>Inclusion of Hartebeesthoek in 1024 Mbps observations should significantly
>improve the performance of the e-EVN for low-declination sources.
>
>Congratulations to the Hart team for their successful repairs to the
>antenna and their much higher data-rate connection.
>
>
>thanks,
>bob
>
>
>
>------------------------------------o------------------------------------
>Bob Campbell Head, Science Operations & Support
>EVN MkIV Correlator at JIVE
>
>Joint Institute for VLBI in Europe campbell_at_jive.<!--nospam-->nl
>Radiosterrenwacht Dwingeloo +31 (0)521-596-534
>Oude Hoogeveensedijk 4 +31 (0)521-596-500 (switchboard)
>7991 PD Dwingeloo +31 (0)6-2501-8058 (mobile)
>the Netherlands +31 (0)521-596-539 (fax)
Received on 2010-08-27 08:41:05