Berkeley/Caltech could plan to come to Green Bank the WEEK OF MARCH 5 to work with NRAO on testing and integration, before the galactic center observations. Probably 3-4 people
March Testing Status
Mode 1 working and tested at high clock rate
Up to 357 MHz clock rate (2.85 GSamples/sec - 1.42 GHz bandwidth) with switching signals and logic. Good packets and spectrum. Changes will be documented on wiki this week. Binaries can be downloaded. The next incremental increase easier on R2 and mode 13 next
filter 1400 for mode #1
Computers for test
looking into using 8 computers for tests - if NICs can be found machines may be available between NRAO and UC-B - report next week.
waiting for IF PCBs - in process, expected this week
Anish will do some tests w/synth this week and send around plots
Reviewed the checklist that Jason built for the hardware items for the March test.
There is a strong preference for the overall configuration to mimic the final configuration. Plan for eight Valons for the test at this point.
NRAO Modification Request (MR) status: Noted as'VEGAS'in NRAO Plan of Record
Software integration tasks
Integrated testing of VEGAS manager with other GBT software and checking the data with GBTIDL.
Blocked by a firmware bug - access to new binaries will help
Testing the VEGAS Manager along with GBTIDL to see whether the state integration is done correctly.
Need a FITS file, new CASPER code, switching details, this weeks version should wotk
Testing VEGAS configuration for mode 1 (and 13) using config tool.
with CCC fo approval, Changes can be scheduled upon approval.
Data writing speed is waiting for a new host (coming with UC-B) before test is executed *Other status:
15 Roach 2 prototypes are built. 11 work and they are looking at the broken ones. The problems are very distinct between the 4 that don't work so the problems are presumed to be from manufacture, not design. The plan is to update design to eliminate the blue wire changes and move forward with next run.
The mezzanine board would be useful but is not required for VEGAS. It is not working yet, but expected to be working soon.
Jason created a list transceivers, switches, and fibers. Orders sgould be placed for three (3) Netgear switches and three (3) tranceivers. The rest of the order can wait until the final Roach 2 and ADC order.