5 SYSTEM ACCEPTANCE TEST (field acceptance test or functional testing)
This test is performed in the field once all associated sites are
installed, site acceptance tests are complete, and backhaul
connectivity is stable and available to all associated system
locations. The purpose of this test is to demonstrate system
features, functions and failure scenarios in the final system
configuration. Dispatch consoles and subscriber radios must
be configured with their final templates and programming.
Subsystems integrated into the radio systems must also tested.
In particular, network performance – including bandwidth
availability and microwave fades – affects the radio
communications system. Performance should be verified, tested
and recorded prior to starting a system acceptance test to
ensure the radio system network requirements have been met
and any problems arising during the test are not due to backhaul
or bandwidth issues.
6 FINAL ACCEPTANCE TEST (final sign-off or 30-day test or burn-in period)
This kicks off a designated period of time for the customer to
use the system and identify issues. Issues are identified as either
major or minor and are recorded in a final acceptance punch list.
Depending on the contract provisions, major punch list items
may cause a restart of the test time period.
Once the final acceptance test completes its time frame with
no major punch list items identified, the customer signs for final
acceptance and the system then moves into the warranty phase.
PSC, Susan Ronning, PE (CA), has experience as a vendor,
consultant and customer and has been involved in all
aspects and phases of a project, from inception to final
acceptance. She holds a BSEE and MBA and is an
active member of IEEE, APCO International, and leads a
Portland Oregon Neighborhood Emergency Team (NET).
Ms Ronning is a Senior Systems Engineer for Tait Radio
4 COVERAGE VERIFICATION TEST (coverage acceptance test or simply coverage testing)
The coverage verification test is performed once all sites are fully
installed with final RF systems and their site acceptance testing
completed. The purpose is to capture the actual RF transmission
performance and analyze it against the predicated area
performance and coverage guarantees in the negotiated contract.
Propagation characteristics of a radio system are based on each
site’s individual contribution to the system, so any changes to a
site, such as types or locations of antennas, can directly impact
on the whole system performance. Changes that affect the
system can affect system performance and coverage, although
coverage changes may not affect the coverage guaranty,
depending on the contract. All parties need to be aware of
requested or required change and its effect.
Coverage verification is specific to each radio system’s
modulation. Recorded data may be delivered audio quality
(DAQ), received signal strength (RSSI), bit error rate (BER)
or any combination of the three.