[evlatests] Strange Tcals and Switched Power behavior
Ken Sowinski
ksowinsk at nrao.edu
Mon Nov 1 14:14:11 EDT 2010
On Mon, 1 Nov 2010, Rob Long wrote:
> I looked at these antennas and don't believe that the LO timing is off by 10
> ms (in the antenna). Did we see this problem before the power outage?
The problem likely lies at the antenna.
I recorded one second of TP data from a T304 at 500 Hz.
The noise tube signature is very obvious at 20 Hz with
a duty cycle of about 30% on and 70% off, instead of the
expected 50-50.
More information about the evlatests
mailing list