Hi Gary,
RF Explorer can work with certain versions of Microsoft Surface. Unfortunately, the Surface 3 is a GO model with a limited Windows in S mode, which is very restrictive and does not allow the installation of normal applications or drivers.
You can use a Microsoft Surface Pro, or you can opt for any other Windows tablet with unrestricted Windows. For instance, CHUWI provides reliable, low-cost Windows tablets that work well with RF Explorer and cost a fraction of a Microsoft Surface tablet.
Additionally, you may want to consider using the new RF Explorer Pro, recently introduced to the market, which is a tablet itself and does not require any extra device. It is the most compact and cost-effective solution:
https://www.emrss.com/collections/rf-explorer/products/rf-explorer-pro-touch-screen-spectrum-analyzerThis new model also includes software options for Frequency Coordination, which are usually essential for musicians with wireless audio devices.
Regards,
RF Explorer Team