rf amplifier

rf amplifier

Wilson Facts About Amplifier Performance

Wilson Facts About Amplifier Performance
– UnwiredSignal.com
Understanding how the cell amplifier is extremely important to research different amplifiers on the market. In Wilson, we stand by our claim that our amplifiers perform better than any of our competitors, because the design and engineer to work better than our competitors. After testing by our own engineers, we have an outside, accredited, independent testing laboratory to verify the cellular industry our results test with their own tests.

There are three performance specifications that constitute the main basis for benchmarking: the specification first performance is receiver sensitivity, which is the ability of Wilson transponder or receiver to take a weak signal from the cell site of a company. Screening should be done with the right criteria and methodology using equipment specifically for testing cell phones. Wilson Electronics has the ability to do these tests in our engineering facility where we have a site and a cell simulator electrically isolated dual radio frequency (RF) enclosure.

Once the test internally, then we have our testing results independently verified by an external laboratory that performs tests of the major carriers and handset manufacturers.

The performance standard that the evidence against the CDMA performance standard. This Standard is the most comprehensive and preferred, since the evidence for the weakest signal that still provide a useful, quality data and voice output device control with a rate of 0.5% frame error (FER) or less. In other words, an amplifier with higher receiver sensitivity can detect a weaker signal that allows the cell site to communicate with the mobile phone to a greater distance. The Wilson amplifier surpasses all competition in the CDMA standards of performance.

By using the CDMA performance standard as a baseline, the comparison can be made between cell phones and the performance of the amplifier. A phone typical cell and a sensitivity of -104 dBm or more. The greater the number of dBm Gets a test device, the signal is weaker than he can receive and pass the test. (For example, a -110 dBm level can pick up a signal 6 dB weaker than -104 dBm). A 6 dB improvement in sensitivity of receptors allows an amplifier for receiving the signal, even at twice the distance from cell site. 1. Using the same parameters CDMA standard, Wilson Dual-Band Direct Connection Amplifier 1900 MHZ receiver has a sensitivity of -109.3 dBm, then Digital Antenna DA4000 Amplifier has a sensitivity of only -104.2 DBm. That means the Wilson amplifier can receive a signal 79% farther than the flat digital amplifier.

Sensitivity are misleading used by our competitors, so they've tested their products against ours. Digital Antenna claims their direct connect amplifier receiver has a sensitivity of -123 dBm. This high number is meaningless because whenever higher by reducing the received bandwidth during testing. Measurement should be done with the bandwidth of the system stack that the reference set and then be compared with other amplifiers using the benchmarks in the same test site cellular CDMA. This is the method we use in Wilson and the standard tests used by all other accredited comparison. The quality of Wilson action.

2. The performance specification is the passage of the second test, which includes open loop power, power, closed loop testing minimum and maximum power for CDMA to ensure the amplifier meets CDMA specifications and does not interfere with cell sites the Carrier. Some of these amplifiers-1900 Richardson Electronics B800-1 even in a position to meet the minimum requirements for cellular phone testing.

3. The third is performance specification the test of quality and safety. Wilson Electronics uses automatic test stations sophisticated computer that handle at least 40 different test runs in each amplifier before being sent to our products distributors. This ensures consistency of each amplifier Wilson and Wilson relay system has been tested for performance and compliance with our quality control criteria before being sent.

Our approach at Wilson Electronics is follow these three performance specifications in determining the performance of our amplifiers. We publish the results of the tests and comparisons with our competitors available to dealers and customers make an informed decision which product to buy. We are the test results show that the Wilson amplifier products beat the competition!

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About Amplifier MOSFET and transistor?

1. In coupled amplifiers (transistor coupled), how can I reduce the interference RF (production of "Blast" noise during operation of the switch AC / AC devices like light pipe)? Is the pain the problem directly with such amplifiers. 2. Is the problem above may persist in the error amplifier IC? 3. Today in the Darling Range are highly preferable the transistor common PN junction? Can you give the pros and cons of Darlington transistors?

1)> AC filters in the main cable bridge.Also power rectifier and a good amp RF Shield and son of the signal down. 2)> The type of transistor is not the problem! 3)> I do not know!

01A RF Amplifier