We present the results from both the timing and spectroscopic analysis of the transient X–ray pulsar GS 1843+00 observed by the BeppoSAX satellite on 1997 April 4 , when the source was at a luminosity of \sim 10 ^ { 37 } erg s ^ { -1 } .
GS 1843+00 shows a very hard spectrum that is well fitted by an absorbed power law ( N _ { H } \sim 2.3 \times 10 ^ { 22 } cm ^ { -2 } ) modified by a high energy cut–off above 6 keV .
The source shows a small pulse amplitude in the whole energy band .
The pulse profile evolves with energy from a double–peaked to single–peaked shape .
The barycentric pulse period is 29.477 \pm 0.001 s .