  We present sensitive, high angular resolution Jansky Very Large Array
observations made in 2014 at 1.50 GHz toward the field of Tycho's supernova
remnant. We detect a total of 36 compact sources in a field with radius of 13
arcmin. This number is consistent with the expected number of background
sources. We use older observations made with the classic Very Large Array to
compare with the 2014 observations and search for sources showing large proper
motions that could be related to the donor companion of the exploding white
dwarf that produced the supernova in 1572. The comparison of the positions for
the two sets of observations does not show sources with large proper motions
and supports the conclusion that all sources detected are extragalactic and
unrelated to the supernova field.
