This 3rd paper in the CHANG-ES series shows the first results from our regular data taken with the Karl G. Jansky Very Large Array ( JVLA ) .
The edge-on galaxy , UGC 10288 , has been observed in the B , C , and D configurations at L-band ( 1.5 GHz ) and in the C and D configurations at C-band ( 6 GHz ) in all polarization products .
We show the first spatially resolved images of this galaxy in these bands , the first polarization images , and the first composed image at an intermediate frequency ( 4.1 GHz ) which has been formed from a combination of all data sets .

A surprising new result is the presence of a strong , polarized , double-lobed extragalactic radio source ( CHANG-ES A ) almost immediately behind the galaxy and perpendicular to its disk .
The core of CHANG-ES A has an optical counterpart ( SDSS J161423.28-001211.8 ) at a photometric redshift of z _ { phot } = 0.39 ; the southern radio lobe is behind the disk of UGC 10288 and the northern lobe is behind the halo region .
This background ‘ probe ’ has allowed us to do a preliminary Faraday Rotation analysis of the foreground galaxy , putting limits on the regular magnetic field and electron density in the halo of UGC 10288 in regions in which there is no direct detection of a radio continuum halo .

We have revised the flux densities of the two sources individually as well as the star formation rate ( SFR ) for UGC 10288 .
The SFR is low ( 0.4 to 0.5 M _ { \odot } yr ^ { -1 } ) and the galaxy has a high thermal fraction ( 44 % at 6 GHz ) , as estimated using both the thermal and non-thermal SFR calibrations of ( 34 ) .
UGC 10288 would have fallen well below the CHANG-ES flux density cutoff , had it been considered without the brighter contribution of the background source .

UGC 10288 shows discrete high-latitude radio continuum features , but it does not have a global radio continuum halo ( exponential scales heights are typically \approx 1 kpc averaged over regions with and without extensions ) .
One prominent feature appears to form a large arc to the north of the galaxy on its east side , extending to 3.5 kpc above the plane .
The total minimum magnetic field strength at a sample position in the arc is \sim 10 \mu G. Thus , this galaxy still appears to be able to form substantial high latitude , localized features in spite of its relatively low SFR .