  The Gukov-Manolescu series, denoted by $F_K$, is a conjectural invariant of
knot complements that, in a sense, analytically continues the colored Jones
polynomials. In this paper we use the large color $R$-matrix to study $F_K$ for
some simple links. Specifically, we give a definition of $F_K$ for positive
braid knots, and compute $F_K$ for various knots and links. As a corollary, we
present a class of `strange identities' for positive braid knots.
