  A 63Cu NMR study of Pb-doped Bi:2201 system, Bi1.6Pb0.4Sr2.05CuOy, is
presented. Temperature dependencies of the NMR peak shift and the nuclear
spin-lattice relaxation rate revealed the pseudogap that opens at T* = 20 - 60
K, way above the Tc ~ 9K measured for the orientation (H//c) and value (7 T) of
the NMR experiment field. The noticeable discrepancy between Tc and T* and the
behavior of Cu SLR at T > T* imply the underdoped state of the studied system.
The magnetic field has a relatively weak effect on the superconductivity in the
studied system, as evidenced from small (7-8 K) shift of the zero-field Tc =
16+/- 1K under the applied 7 T field. This fact suggests a high value of the
upper critical field, unusual for a compound with such low Tc.
