  Following from the results of the first systematic modern low frequency
Search for Extraterrestrial Intelligence (SETI) using the Murchison Widefield
Array (MWA), which was directed toward a Galactic Center field, we report a
second survey toward a Galactic Anticenter field. Using the MWA in the
frequency range of 99 to 122 MHz over a three hour period, a 625 sq. deg. field
centered on Orion KL (in the general direction of the Galactic Anticenter) was
observed with a frequency resolution of 10 kHz. Within this field, 22
exoplanets are known. At the positions of these exoplanets, we searched for
narrow band signals consistent with radio transmissions from intelligent
civilisations. No such signals were found with a 5-sigma detection threshold.
Our sample is significantly different to the 45 exoplanets previously studied
with the MWA toward the Galactic Center Tingay et al.(2016), since the Galactic
Center sample is dominated by exoplanets detected using microlensing, hence at
much larger distances compared to the exoplants toward the Anticenter, found
via radial velocity and transit detection methods. Our average effective
sensitivity to extraterrestrial transmiter power is therefore much improved for
the Anticenter sample. Added to this, our data processing techniques have
improved, reducing our observational errors, leading to our best detection
limit being reduced by approximately a factor of four compared to our
previously published results.
