  We report new limits on the kinetic mixing strength of the dark photon
spanning the mass range 0.21 -- 1.24 $\mu$eV corresponding to a frequency span
of 50 -- 300 MHz. The Dark E-Field Radio experiment is a wide-band search for
dark photon dark matter. In this paper we detail changes in calibration and
upgrades since our proof-of-concept pilot run. Our detector employs a wide
bandwidth E-field antenna moved to multiple positions in a shielded room, a low
noise amplifier, wideband ADC, followed by a $2^{24}$-point FFT. An optimal
filter searches for signals with Q $\approx10^6$. In nine days of integration,
this system is capable of detecting dark photon signals corresponding to
$\epsilon$ several orders of magnitude lower than previous limits. We find a
95% exclusion limit on $\epsilon$ over this mass range between $6\times
10^{-15}$ and $6\times 10^{-13}$, tracking the complex resonant mode structure
in the shielded room.
