ETSI EN 300 394-1 Terrestrial Trunked Radio, TETRA, Radio Testing
EN 300 394 wireless testing applies to voice plus data, base stations, mobile stations, and direct mode operation equipment. As a leader in RF regulatory compliance testing, Keystone Compliance recognizes the requirements needed for wireless radio manufacturers. Meeting the ETSI, FCC, and other wireless testing specifications can be challenging. Not only do we understand the challenges, but we help guide companies through the process.
Keystone’s radio testing engineers streamline the process and assist companies to achieve the compliance they require. We have a reputation for helping customers achieve their wireless product certifications. Keystone Compliance tailors each test plan to individual customer needs minimizing unnecessary costs and over-testing.
Summary of TETRA Radio Testing Device Testing
The purpose of this wireless EN compliance standard is to provide compliance to radio transmission and reception for equipment. Furthermore, the equipment operates in a Terrestrial Trunked Radio (TETRA) system. The regulatory compliance requirements also assist in minimizing harmful interference to other equipment.
TETRA specifications are applicable to systems operating in the frequencies in the range of 300 MHz to 1 GHz. The test defines radio test configurations, signals, modes, and conditions in order to comply with wireless technology standards.
Equipment submitted for TETRA testing must comply with this standard on all channels over which it is intended to operate. ETSI EN 300 113 is referenced in this standard and may be used for more detailed information.
Scope of Wireless TETRA Radio Testing
Prior to the marketing and selling of the devices, the equipment is marked must and meet all regulatory requirements. The manufacturer must provide the following information to the test laboratory in order to complete testing and certification:
- At least one antenna connector as a test point;
- Coupling and/or terminating devices so that tests can be performed via a single antenna connector;
- TETRA equipment such as radio packet modem modules, which may not have an antenna connector;
- Specified test modes;
- A test connector which provides decoded data output;
- Power class of equipment;
- Receiver class A, B, E;
- Other capabilities and options implemented in equipment;
- Description how to use the equipment in specific test modes and test connector interface details;
- Information of power source used in the equipment.
The interpretation of the results recorded in the test report for the measurement are described in this standard. This includes the measured value related to the corresponding limit.
This procedure for using maximum acceptable uncertainty values is valid until superseded by an ETSI publication. The use of measured value has been chosen because there is currently no definitive standard allowing for measurement of uncertainty.
ETSI EN 300 394 Intentional Radiator Wireless Device Testing
During testing, tests will generally be made under normal test conditions. However, testing under extreme conditions is not unlikely. The power source of the equipment is replaced by a test power source. The test power source is capable of producing normal and extreme test voltages.
The voltage of the power source is measured at the input terminals of the equipment. IF the equipment is permanently connected to the power source, the test is measured at the voltage of the input terminals.
Normal Test Conditions: The normal conditions are to be tested at any combination of temperature and humidity within the following range:
- Temperature: +15 C to +35 C
- Relative humidity: 5% to 75%
- Intended operational humidity range of the IUT
When it is impracriable to carry out the conditions above, the actual temperature and relative humidity is recorded. The normal test voltage for equipment is connected to the mains and is considered the nominal mains voltage. The frequency of the test power source is between 49 Hz and 51 Hz.
Extreme Test Conditions: For tests on equipment at extreme ambient temperatures, measurements are at an upper and lower temperature. The lower temperature is -20 C except for BS equipment. The upper temperature is at +55 C.
The extreme humidity conditions are the same as the normal humidity levels specified above. The extreme test voltages for equipment connected to an AC mains source is the nominal mains voltage of 10%.
Expert Wireless Wireless ETSI EN Laboratory Testing
Our team strives to give our customers more time and energy on product development instead of testing. Keystone has a full lab of test equipment which permits us to provide short lead times on scheduling. In addition to ETSI EN wireless testing, Keystone has a full scope of expertise including licensed radios, and multiple transmitters.