[5] 3C 346 also contains a jetted double radio source when observed in X-rays[6] and a bright hotspot region showing strong emission in ultraviolet, mainly caused by synchrotron radiation.

However, when observed by the Advanced Satellite for Cosmology and Astrophysics (ASCA) two years later, the emission presents a different spectral slope of αx = 0.73+0.17-0.23 with a lower flux level of 7.4 x 10−13 erg cm−2 s−1.

[9] Reaching at high radio frequencies, the jet of 3C 346 contains individual bright knots located at different positions with increased distances from the core region.

[4] According to the jet being detected using Hubble Space Telescope optical polarimetry, Very Large Array polarimetry at 14.9 and 22.5 GHz and data from Chandra X-ray observatory, it shows similarities between optical and radio morphology.

However the X-ray emission is found offset by 0.80 ± 0.17 kiloparsecs from both optical and radio peak positions.