The GDK-2 is an easy-to-use, plug & play designer kit for the SRO-100/10x (SRO) Rb products. It helps designers deliver fast, low-cost, and integrated GPS timing clock solutions at 30% less than conventional timing module/board cost, while focusing on their core expertise. It comes with a GPS receiver, antenna and related cable accessories, and a smart GPS-disciplined SRO Rb oscillator. The GPS can be from any vendor by feeding the SRO with a 1PPS input reference.