. How is the performance of this product? Next we will be from the user experience, novelty, UI, as well as quality, reliability, longevity, performance and other aspects of the cell phone objective and professional evaluation, for the majority of consumers in the choice of machine to provide reference.
Package (click here for a larger version
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The Qiji i6c features a QVGA screen with a resolution of 320?240 pixels, with good color performance. As the main model of QIQI, because of its stylish appearance and comply with the current trend of smart phones with large screen and no keyboard, so the CDMA system phone is also used in the form of i6. The i6c is powered by Windows Mobile 6.1 Professional and has a 624MHz processor with 256MB of ROM and 128MB of RAM.
Front view (click here to see a larger image
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This time, Chickie has chosen the i6c, a CDMA smartphone that is still relatively rare on the market, as its review product, and we will provide you with an unprecedentedly informative review meal.
I. Interference test on other devices
Test purpose: to verify the performance and indicators of cell phone spurious
Test significance: When the cell phone is working, there will be RF signals generated. Different systems of cell phones should work in its fixed frequency range. If the cell phone's spurious performance is not good, there will be interference signals outside of its operating frequency range (most interference occurs in the frequency of its operating frequency multiplier), which will produce RF interference to other equipment. This can cause RF interference to other equipment, such as medical equipment, automobile electronic systems, cash dispensers, hearing aids, other communications equipment, and so on. In severe cases, this interference will have an impact on personal safety or property security.
Testing Instruments: All-wave darkroom, R&S EMI test system, R&S CMU200 synthesizer
Reference Standards: GB19484.1-2004ETS 300 607-1 (1997-1) YD 1032-2000
Testing Methods:
Firstly, calibration test Space attenuation between the antenna and the object under test (including the gain of the test antenna); Calibrate the loss of the cable between the rear cabinet and the test antenna. ; calibrate the loss of the path between the receiver and the rear cabinet.
The test handset is tested in a dedicated mode with the handset placed in a vertical manner. Measurements were taken every 300 rotations of the turntable.
The handset is turned on, a call is established with the base station, and the base station settings are adjusted (setting the power control mode to All Up and the channel setting to 283) so that the handset's output power is maximum.
Test Data:
TEMP Spurious CDMA800 Tx 1G-3G TEMP Spurious CDMA800 Tx 3G-6G
Test Conclusion: Pass
The test verified that the samples do not generate RF signals that may cause interference to other devices in the frequency range of 1G-6GHz.
Additionally, Beacon said that another brand of cell phone they had evaluated showed significant stray power at all octaves of the main frequency, and in particular, the radiated power at the 4-octave point (3.33GHz) exceeded the national mandatory specification. This will lead to the cell phone radiation power can affect the range, may have an impact on the work of its frequency points of other devices, and therefore has a security risk. Therefore, we must be more careful when shopping for cell phones.
From this point of view, it seems that Chikki i6C passes the test and is a responsible cell phone for users.
Second, anti-static test ( ESD Test)
Test purpose: test prototype anti-static interference performance
Test significance: in the dry climate of the season, the friction caused by the human body activities, it is very easy to generate static electricity, so that the person becomes a charged body. Static electricity can not be seen and touched, attached to the surface of the object, and other objects interact with each other before releasing energy.
The static electricity on the human body can reach several thousand volts. When you see the discharge sparks, the body of static electricity has more than 3,000 volts, when the finger will have a pinprick-like pain; when you hear the discharge of ? Chopping? sound, the body's static electricity has been as high as 7000-8000 volts.
When the electrically charged human body touches the cell phone, it discharges the phone. Static electricity will pass through the metal parts and gaps of the cell phone, into the interior of the cell phone, through the cell phone's circuitry conduction to the various components, so that it is damaged or disabled. It can be said that static electricity is the invisible killer of all kinds of chips and electronic devices, so cell phones must have the ability to prevent static electricity damage.
Testing equipment: EM Test Dito ESD Simulator, R&S CMU200 synthesizer
Reference standards: IEC 61000-4-2:2001, GB/T 17626.2-1998
Testing method: the prototype will be placed on the insulating mat of the static test bench, and connected to the charger to make the phone in charging state. charger to keep the cell phone in charging state. Connect the cell phone with the synthesizer, adjust the discharge mode, select +/-4kV (contact discharge), +/-8kV (air discharge), discharge the specified part of the cell phone 10 times, every test, while the cell phone discharges to the ground once. After doing a part of the test, check the function, signal and sensitivity of the cell phone, and observe whether the cell phone is dead, communication link interruption, LCD display abnormality, automatic shutdown and other anomalies during the test.
Definition of prototype discharge point: +/-4KV (contact discharge) only for the prototype of metal parts, metal decorative parts, metal materials or metal properties of the coating, Lens, etc., +/-8kV (air discharge) for the prototype is often in direct contact with the crevice places, such as: keys, side keys, antennae, the rotating shaft.
Determination criteria: During and after the discharge process, the phone's functions, electrical properties, structure, etc., should not have any abnormality
Test conclusion: Pass
Test data: +/-4kV (contact discharge): During and after the test, the sample has no abnormality
+/-8kV (air discharge): During and after the test, the sample has no abnormality
+/-8kV (air discharge): During and after the test, the sample has no abnormality
+/-8kV (air discharge): During and after the test, the sample has no abnormality. After the end of the test, the sample has no abnormality
Three: Acoustic Test
Test Purpose: To test whether the cell phone's audio indicator meets the standard
Test Significance: The most basic function of a cell phone is to make a phone call, so the quality of the phone's call quality is the most important and basic indicator to evaluate the quality of the cell phone. In terms of call quality, the most intuitive feeling we have is the size of the voice, whether it is clear, etc. The evaluation of the effect of this voice is also the evaluation of the effectiveness of the voice. The evaluation of this voice effect is also known as the audio test. The audio test is conducted in a professional anechoic chamber, in order to avoid the influence of environmental noise on the assessment of the conditions of the phone's sound transmission and reception of the loudness, noise, sensitivity and other indicators for evaluation. If a cell phone does not pass the audio test, it may not be loud enough, have background noise in the call, or have an unclear voice.
Testing equipment: Acoustic Test System, R&S CMU200 synthesizer
Determination criteria: Each test item meets the standard reference value
Test conclusion: Pass
Test data:
Discharging test (Evaluation)
Discharge testing (Discharging)
Discharge testing (Discharging)
Discharge testing (Evaluation)
This is the first time that a mobile phone has been tested by a computer for the first time. Evaluation)
Test Purpose: To check the battery capacity
Test Meaning: ? My battery is 2500mAh, how can it still die so quickly? We can see a lot of high-capacity batteries on the market, but the actual battery life is not dramatically improved, why is this? We pay for the large capacity, but why don't we get the results? This is because although these batteries claim to have a very large capacity, the actual capacity is not so much. All the work on a cell phone is powered by the battery, and the battery is the equivalent of its life for the phone. That's why it's important to check whether the battery's actual capacity is up to its nominal value.
Testing Instrument: Bs9300R Secondary Battery Performance Testing Device
Reference Standard: GB-T 18287-2000
Testing Methods: Correctly connect the battery to be tested with the channels of the testing instrument, and set up two discharge modes. Steps are as follows:
* 1C discharge: constant current charging (1C5A) of the battery to be tested, upper limit voltage 4.2V; constant voltage charging upper limit voltage 4.2V, limiting current 1C5A /100.
Set aside for 30 minutes, constant current 1C5A discharge, lower limit voltage 3.0V, end
* 0.2C discharge:
Constant current charging (1C5A) of the battery to be tested, upper limit voltage 4.2V, limiting current 1C5A /100. Charging (1C5A), upper limit voltage 4.2V; constant voltage charging upper limit voltage 4.2V, limit current 1C5A /100
Shelved for 30 minutes, constant current 0.2C5A discharge, lower limit voltage 3.0V, end
Determination criteria: constant current to 0.2C5A discharge, discharge time greater than 5 hours is qualified; constant current to 1C5A discharge,
Discharge time greater than 51 hours.
Discharge time greater than 51 minutes is qualified; the average internal resistance of the battery should be less than 150 mOhm during the whole testing process if there is no special requirement
Test conclusion: Pass
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