The 4400 with its EVDO options provides the lowest total test cost per device for cell phone manufacturers and service centers.
The 4400 with the 1xEV-DO Non-Call Mode Option forms a fast, accurate and reliable test system for wireless devices such as mobile phones, wireless PDAs and PC cards conforming to 1xEV-DO Rev 0 and Rev A standards. With its fast power measurements, production sites can use it to precisely align the phone’s transmitter within very little time, increasing the production throughput and the quality of the devices. With its outstanding performance and price, the 4400 provides vendors with extremely low total test cost per wireless device. As all major cellular standards are available on the 4400 series, it drastically reduces production downtime because one system can easily switch from one technology to another.
Service centres and the repair loop within manufacturing sites use the 4400 with 1xEV-DO to check the overall quality of wireless devices. These checks are based on measurements of the modulation quality, the transmit power quality and the radio frequency spectrum. A built-in signal generator can be used to stimulate the device under test and test the received signal strength indicator of the phone. Non-call mode tests are typically performed with the phone being in a manufacturer-specific service mode.
4453 1xEV-DO Call Mode Option
The call mode option features the call processing functions necessary to set up a connection between the tester and the EVDO phone (includes Revision A of the standard). This mode resembles a real-life situation and allows both transmitter measurements and receiver measurements. It is usually applied during incoming inspection and final testing of mobile phones in service centres. As Rev.A networks are being rolled out, it is important to be able to test the new generation of Rev.A-capable cell phones.
Transmitter measurements with the 4453 1xEV-DO Call Mode Option test:
- the transmit power quality (including min/max power, closed loop power and access probe power),
- the modulation quality (including waveform quality and code domain measurements) and
- the radio frequency spectrum.
As opposed to the non-call mode option, the call mode option also includes receiver measurements. Receiver performance tests consist of receiver sensitivity and dynamic range measurements using the PER (Packet Error Rate) feature.
Prerequisites
Both 1xEV-DO options require the 4479 Baseband Processing Hardware which is also a prerequisite for other 3G and 3.5G technologies on the 4400 platform.
The 1xEV-DO options do not require the CDMA2000 System Option. This may, however, be useful for tests of the 1xRTT modulation parameters.
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