Functionality is ensured by two tests:
- Adjacent Frequency Band Selectivity test
- Spurious emission test
ETSI has issued a standard EN303-413 for end user equipment having GNSS (GPS/GLONASS/BEIDOU) functionality. This standard has become a CE RED requirement. Verkotan provides GNSS testing according to the ETSI EN303-413 standard.
Purpose of this test is to ensure GNSS functionality fulfills the minimum requirements for interference tolerance. Typical sources of interference are the radios operating at the adjacent frequency bands.
Over The Air (OTA) Assisted-GNSS Testing
Our Spirent test system supports GPS assistance data over 2G, 3G and 4G. It can be used also for tailored A-GNNS tests. We can also provide testing services for GLONASS and BEIDOU satellite systems
GPS Antenna Pattern Test
Our OTA test system provides an accurate 3D picture of the GNSS antenna pattern using feed-through method. In addition, we can measure antenna pattern without any cabling using Carrier-to-noise-density-ratio (CNO). Measurements are usually done in Free Space, but we can also use hand, head and body phantoms or even real people to see how your product performs in realistic, different use cases.
Unique GPS Air Performance Test
Test your device’s full GPS performance with the antenna in a controlled laboratory environment. We have developed a completely new way to test your devices’ full GPS performance with the antenna. Our unique GPS Air Performance test lets you test your device’s GPS air performance in any environment you want – for example on the streets of Barcelona, on your favorite jogging route in the park or even in Grand Canyon.
In cooperation with University of Oulu, we studied GNSS signal behavior in urban city. Reflections from buildings make accurate positioning hard for GNSS receivers.
We have visualized satellite signals in the video. White spots with the numbers are simulated satellites. Green colors are Right-Hand Circular Polarization and Red colors Left-Hand Circular Polarization. Yellow colors are mixture of RHCP and LHCP. The size of the spots represents signal strength.
Want to know more?
We are happy to hear your needs and see if we can help you with them.
Certification & Approval
Audio Quality Testing in Harsh Wireless Radio Environments Provided by Verkotan
Verkotan is a testing laboratory operating in the wireless industry. We provide our customers the fastest and the most accurate wireless solutions, always striving for the best results. Read more
MIMO OTA
Co-Channel Interference Measurement from Verkotan
Co-channel radio interference occurs when multiple base stations share frequencies at the same time. Today’s dense and heavily congested networks are one of the main factors of limiting network performance. The same problem appears in LTE, WCDMA, and even in GSM networks. Read more
GPS
GPS Performance Testing at Verkotan
The GPS Air Performance test is a field test method, by using which we can recreate any radio environment customer needs and test the wearable device e.g. smart watch in the laboratory conditions. Read more
MIMO OTA
MIMO OTA Testing at Verkotan
Using MIMO (multiple input – multiple output) system e.g. in modern smartphone, can increase the maximum data throughput from SISO (single input – single output) system operating in the same bandwidth: 4×2 MIMO is able to double the maximum data throughput and 4×4 MIMO system can pump up the throughput four times higher compared to SISO system. Read more