Wireless communication test set 300kHz to a maximum of 3GHz (depending on the model)
4945B/4945C ・Ceyear Corporation
It is possible to conduct major performance tests related to the measurement and analysis of functional parameters such as transmission and reception of wireless communication devices, RF, modulation, audio, and digital.
The 4945B / C wireless communication test set is a multifunctional and portable model based on software-defined radio architecture, integrating a rich set of features such as generation and analysis of frequency-hopping signals, generation and demodulation analysis of vector signals, generation and demodulation analysis of analog modulation signals, audio signal generation and analysis, audio oscilloscope, and automated testing. The test set enables key performance testing related to the measurement and analysis of functional parameters of wireless communication equipment, including transmission and reception, RF, modulation, audio, and digital. Its wide range of applications covers research and development, manufacturing, verification, and maintenance. It is suitable for the repair and testing of wireless communication equipment, including shortwave/ultra-shortwave radio stations, data link systems, communication and monitoring satellites, and wireless relay equipment. Military mobile phone companies with wireless communication terminals such as communication vehicles, surveillance vehicles, ships, and external field tests can conveniently use this test set.
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basic information
**Functions and Features** ● Analog Standard Communication Test: AM, FM, and SSB signal generation and demodulation analysis. Graphic display of measurement functions such as demodulated audio, SINAD, SNR, distortion, and modulation rate, along with a built-in speaker that outputs demodulated audio in real-time. The modulation signal generator and modulation source support external audio and microphones. ● Audio Signal Test: Generation and analysis of audio signals can reach a maximum audio input level of 30Vrms (high impedance) and an audio output level of 7Vrms (high impedance). It is capable of measuring frequency, level, SINAD, SNR, and distortion degree. Audio generation supports dual-tone output. Individual adjustments can be made for dual-tone frequency and amplitude, with phase being relatively adjustable. ● Automatic Test Software: Online editing of DUT (Device Under Test) parameters, automated pilot testing, generation of test reports, and other functions. The PTT control interface manages the transmission and reception of the DUT. ● High-power built-in attenuator: Input power can reach up to 150W. ● Supports network interface programming control.
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Applications/Examples of results
The 4945B / C wireless communication test set is widely used due to its powerful features and performance for research and development, repair, maintenance, and testing of communication equipment.
Detailed information
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[Transmitter Test] It can perform simultaneous tests of various performance specifications of the transmitter, such as signal power, frequency error, signal modulation characteristics, and audio demodulation. It can provide the audio signal of the transmitter and allows for the selection of single/double tones. It can simulate pilot signals.
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【Receiver Test】 Can transmit FM, AM, and SSBRF signals. Analyzes the audio demodulation of the receiver. Accurately measures audible frequency, voltage, distortion, SINAD, and SNR.
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【Functions as an RF signal generator】 It can output all types of analog modulation such as FM, AM, and SSB, as well as digital modulation such as BPSK, QPSK, 8PSK, GMSK, and 16QAM. The maximum symbol rate for digital modulation is 5MHz. The test set supports the generation of frequency hopping signals with a transient bandwidth of 60MHz.
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【RF Reception and Demodulation】 The test set is capable of demodulating and analyzing analog modulation such as FM, AM, and SSB, as well as digital modulation signals like BPSK, QPSK, 8PSK, GMSK, and 16QAM. It can output the demodulated parameters and waveforms. The maximum demodulation bandwidth for analog modulation signals is 300 kHz, and it reaches a maximum symbol rate of 5 MHz for digital modulation and signal demodulation. Narrowband power measurement is possible.
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Sweep spectrum analysis has characteristics such as a wide frequency range, high resolution, high sensitivity, and a wide dynamic range.
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[Frequency Hopping Signal Analysis] The maximum bandwidth for transient analysis of frequency hopping signals is 60 MHz. The display types include 3D spectrum graphs, time-frequency graphs, and time-amplitude graphs. The test set can capture, store, and analyze frequency hopping signals. Graphs in the spectrum and modulation domains can be displayed at any time. If measurements in the modulation domain are ongoing, frequency points within any time frame can be accumulated and displayed. Frequency hopping points can be observed directly. Pulse signals and transient signals can also be measured.
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【Generation of Audio Signals】 You can choose between a single tone and a double tone. The maximum output level can reach 7Vrms.
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【Audio Signal Analysis】 Audio filters are optional. The maximum input level is 30Vrms. The test set supports measurements of frequency, level, distortion, SINAD, and SNR, as well as audio waveform display.
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Simultaneous operation in multiple windows Supports simultaneous operation of up to 4 windows, and each window can be enlarged individually.
Line up（2）
| Model number | overview |
|---|---|
| 4945B | 300kHz～1.05GHz |
| 4945C | 300kHz～3GHz |
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Company information
As a company that provides unique and innovative solutions in EMC testing and general measurement, Wavecrest Corporation is active in this field. The increasingly sophisticated electronic and communication environment not only affects the performance of its products but also serves as a social infrastructure that impacts the overall safety of society, requiring high levels of safety and reliability. We aim to provide new products and solutions that the market needs, without being constrained by traditional testing methods and equipment.
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