[evlatests] Ant-02

Donna Field dfield at nrao.edu
Mon Dec 3 15:30:33 EST 2012


Vivek,

The jumper is now installed on the 128Mhz Ref line to the L302-4 in
Antenna 2 as requested.


Donna


Vivek Dhawan wrote:
> 
> The fix needed to be  - and still needs to be - done on L302-4.
> 
> The 'fix' to L302-3 does not seem to have hurt it. But I am Not
> sure whether to unfix it or leave it as it is now.
> 
> Vivek.
> 
> 
> On Mon, December 3, 2012 08:19, Ken Sowinski wrote:
> | On Thu, 29 Nov 2012, Jerry Langevin wrote:
> |
> |>
> |>
> |> Today we installed a RF jumper in the 128Mhz reference line of Ant-02 L302-3
> |> to stop the phase jumping, requested by Rob Long.
> |
> | I don't remember the original report, but there is still a report
> | over the weekend of phase jumps at scan boundaries on ea02-B2D2 which
> | correpsonds to the L302-4.  Either the wrong cable was tweaked or
> | there were two problems.
> |
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