  We present recent improvements to the search for the global Cosmic Dawn
signature using the Long Wavelength Array station located on the Sevilleta
National Wildlife Refuge in New Mexico, USA (LWA-SV). These improvements are
both in the methodology of the experiment and the hardware of the station. An
improved observing strategy along with more sophisticated temperature
calibration and foreground modelling schemes have led to improved residual RMS
limits. A large improvement over previous work using LWA-SV is the use of a
novel achromatic beamforming technique which has been developed for LWA-SV. We
present results from an observing campaign which contains 29 days of
observations between March $10^{\rm{th}}$, 2021 and April $10^{\rm{th}}$ 2021.
The reported residual RMS limits are 6 times above the amplitude of the
potential signal reported by the Experiment to Detect the Global EoR Signature
(EDGES) collaboration.
