3. Step-by-step GuideThe following chapters will guide you step by step through preparation, installation and activation ofthe RAy3 link:• Pre-installation check out• Installation (Chapter 4.)• Advanced configuration (Chapter 5.)• Troubleshooting (Chapter 8.)Pre-installation ChecklistDefault settings for L and U units are chosen to allow delivered units to automatically establish a linkwithout unpacking RAy3 units from the box. It is enough to open the boxes and power both RAy unitsup (by PoE or DC power supplies). It allows users to comfortably set up basic parameters necessaryfor the installation in the lab and thus shorten the time on the tower or roof to a minimum. Followingtext provides a guide how to optimally arrange the workplace, how to setup the link and which parametersare good to be set up before the installation outside.Default factory settings define the initial link to be established on the most narrow channel, strongestmodulation and lowest available Tx power (in RAy3 case those are 3.5 MHz channel, QPSK_S modu-lation and Tx power = -30 dBm). Complete default settings are described in section 10 Technicalparameters.NoteRAy3 default factory settings allow to install both units on the mast and establish the shortlink without prior manual configuration. Just the distance has to be very short due to Txpower set to the minimum for the unit (-30 dBm on Ray3-17 and Ray3-24). Typically, Txpower has to be increased to a reasonable level (or even to a maximum) before link align-ment.41© RACOM s.r.o. – RAy3 Microwave LinkStep-by-step Guide
