For the bright z = 3.02 radio-quiet quasar, HS 1946+7658, we have obta
ined radio to X-ray data within the past year: 5 GHz and 1415 MHz data
from the VLA; IR photometry at J, H, K, L' (3.4 mu m) and N; IR spect
roscopy; UBVRI photometry; optical spectrophotometry and high-resoluti
on spectra; and an X-ray spectrum from the ROSAT PSPC. The spectral en
ergy distribution (SEC) constructed from these data is compared to the
mean SED for a set of low-redshift quasars, and while they appear gen
erally similar, there are several differences. In relation to the low-
redshift mean, the SED of HS 1946+7658 shows (1) only an upper limit a
t 10 mu m (a rest wavelength of 2.5 mu m) indicating that HS 1946+7658
does not have a strong near-IR excess such as hot dust would produce;
(2) relatively weak Fe II and Balmer continuum emission at similar to
3000 Angstrom; and (3) a steeper turndown shortward of Ly alpha, even
after correction for the Ly alpha forest absorption lines.