The foundation of a reliable radio network is the RF Site Survey. The EST Customer Support engineer performs on-site measurements and analysis to determine factors needed to design the RF data communications system including RF signal levels between all nodes, co-channel emitter frequencies, their signal strengths, and RF data quality. Additional design input is given on antenna selection and location, feedline requirements, and lightning/power protection for each node, as well as specific installation requirements as dictated by the customer's application. After completion of the analysis, a formal Site Survey Report is prepared to document the above findings and the installation/hardware requirements for the site.

Listed below are the major action items on site:
1. Upon arrival at the customer's site, EST will perform a preliminary site walk-down with site engineer.

2. EST will perform preliminary frequency checks to determine if other RF emitters or noise sources are present to determine operating frequency for the survey.

3. EST will configure an ESTeem as a reference point and perform a site survey of all areas. This will be repeated as necessary with repeaters to ascertain total RF coverage needed.

4. EST will perform field strength measurements of selected site locations before finalizing ESTeem placement and antenna placement.

5. EST will setup and conduct an on-site Polling Diagnostic.

6. EST will present preliminary findings to management prior to leaving customer site.

EST site engineer will submit to the customer a Site Survey Report and detailed Equipment List within five working days from return to EST. For more information on what will be completed during an ESTeem Site Survey, please refer to the Site Survey Technical Bulletin or Site Survey Engineering Report E94006.