  The primary challenge of GOLF-NG (Global Oscillations at Low Frequency New
Generation) is the detection of the low-frequency solar gravity and acoustic
modes, as well as the possibility to measure the high-frequency chromospheric
modes. On June 8th 2008, the first sunlight observations with the multichannel
resonant GOLF-NG prototype spectrometer were obtained at the Observatorio del
Teide (Tenerife). The instrument performs integrated (Sun-as-a-star), Doppler
velocity measurements, simultaneously at eight different heights in the D1
sodium line profile, corresponding to photospheric and chromospheric layers of
the solar atmosphere. In order to study its performances, to validate the
conceived strategy, and to estimate the necessary improvements, this prototype
has been running on a daily basis over the whole summer of 2008 at the
Observatorio del Teide. We present here the results of the first GOLF-NG
observations, clearly showing the characteristics of the 5-minute oscillatory
signal at different heights in the solar atmosphere. We compare these signals
with simultaneous observations from GOLF/SOHO and from the Mark-I instrument --
a node of the BiSON network, operating at the same site.
