  We have carried out spatially resolved thermal/nonthermal separation on two
edge-on galaxies, NGC~3044 and NGC~5775, using only radio data. Narrow-band
imaging within a frequency band that is almost contiguous from 1.25 to 7.02 GHz
(L-band, S-band and C-band) has allowed us to fit spectra and construct
thermal, nonthermal, and nonthermal spectral index maps. This method does not
require any ancillary H$\alpha$ and infrared data, or reliance on dust
corrections that are challenging in edge-on galaxies. For NGC~3044, at 15
arcsec resolution, we find a median thermal fraction of $\sim\, 13$\% with an
estimated uncertainty in this fraction of $\sim\, 50$\% at 4.13 GHz. This
compares well with the H$\alpha$ mixture method results. We uncovered evidence
for a vertical outflow feature reaching at least $z\,\sim\,3.5$ kpc in
projection above the plane, reminiscent of M82's starburst wind. For the higher
SFR galaxy, NGC~5775 at 12 arcsec resolution, we find a median thermal fraction
of 44\% at 4.13 GHz with an estimated error on this fraction of 17\%. Both
galaxies show a change of slope (flattening) in L-band. These results suggest
that a radio-only method for separating thermal from nonthermal emission is not
only feasible, but able to reveal new features that might otherwise be obscured
in edge-on disks.
