RSS-119 Testing of Land Mobile and Fixed Equipment
RSS-119 evaluates land mobile and fixed equipment operating in the 27.41 – 960 frequency range. 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 Compliance assists companies in RF testing daily. We are continually developing partnerships in GMA and RF exposure testing. These strategic partnerships allow us to meet customer needs beyond our scope of accreditation. We tailor each test plan to individual customer needs minimizing unnecessary costs and over-testing.
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Summary of Intentional Radiator RSS-119 Compliance Testing
RSS-119 determines the requirements for land mobile and fixed equipment. Additionally, this equipment must operate within the frequency range of 27.41 – 960 MHz. Within this standard wireless test method, equipment used for land mobile services operating must be certified if it is also able to meet the equivalent of one voice channel in a 12.5 kHz bandwidth.
The wireless RSS 119 test equipment covered by this standard is classified as Category I equipment. Either a technical acceptance certificate issued by the Certification and Engineering Bureau or a certificate issued by a certification body is required.
RSS-119 is used in conjunction with RSS-Gen, General Requirements for Compliance of Radio Apparatus. The RSS general standard complies with specifications and information relevant to the equipment covered by this standard.
Scope of Wireless Land Mobile and Fixed Equipment Testing
Radio interferences are caused by end-user transmissions on unauthorized frequencies. To prevent these harmful interferences, transmitters with external frequency selection controls must conform to the following:
- Transmitters must operate only on authorized channels which have been preset by the manufacturer, equipment supplier, service technician, or maintenance personnel.
- Transmitters with frequency programming capabilities must have at least one of the following design characteristics. These must prevent the user from altering the preset frequencies.
- Transmitters with external controls can be only modified to place the equipment in the programmable mode.
- Transmitters are programmed for frequencies through controls that are inaccessible to the user.
- Transmitters are programmed for frequencies through the use of external devices. They are also specifically programmed modules that are available only to service technicians or maintenance personnel.
- Transmitters are programmed through cloning using devices and procedures that are only available to the service technician or maintenance personnel.
Transmitters are operated at the manufacturer’s rated power. The transmitters are also tested by the measurement method described in RSS-Gen. If the audio input signal is voice and the transmitter is RF, the modulator is modulated higher than that required to produce 50% of the maximum frequency deviation. For all other transmitters, a signal representative of those encountered in a real system operation is used.
Expert RSS-119 Intentional Radiator Laboratory Testing
Keystone has a full lab of test equipment which permits us to provide short lead times on scheduling. Our team strives to give our customers more time and energy on product development instead of testing.