  We present a protocol to achieve double quantum magnetometry at large static
magnetic fields. This is a regime where sensitive sample parameters, such as
the chemical shift, get enhanced facilitating their characterization. In
particular, our method delivers two-tone stroboscopic radiation patterns with
modulated Rabi frequencies to achieve larger spectral signals. Furthermore, it
does not introduce inhomogeneous broadening in the sample spectrum preventing
signal misinterpretation. Moreover, our protocol is designed to work under
realistic conditions such as the presence of moderate microwave power and
errors on the radiation fields. Albeit we particularise to nitrogen vacancy
centers, our protocol is general, thus applicable to distinct quantum sensors.
