Product overview
Techwin Radio Communications Tester TW8800, which is a multifunctional and portable model based on software radio architecture, integrates plentiful functions, like frequency-hopping signal generation and analysis, vector signal generation and demodulation analysis, analog modulation signal generation and demodulation analysis, audio signal generation and analysis, audio oscilloscope, automatic testing and so on. The tester is capable of major performance testes on transmit and receiving of radio communication equipment, measurement and analysis on feature parameters of RF, modulation, audio, and digit etc. Wide applications of the tester cover R&D, production, verification, maintenance and repair, and testing on radio communication equipment, including short-wave/ultra short-wave radio stations, data link systems, communication and surveillance satellites, radio relay equipment. Military mobile carriers with radio communication terminals like communication vehicles, surveillance vehicles, vessels and ships, as well as external field tests can use this tester conveniently.
Main characteristics
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Multiple RF testing functions：sweep spectrum analysis, broadband and narrow band power measurement, frequency error measurement, RF signal source;
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Analog standard communication testing ： AM, FM, SSB signal generation and demodulation analysis. Equipped with graphic display of demodulation audio, SINAD, SNR, distortion degree, modulation rate and other measurement functions. The built-in
speaker outputs demodulation voice in real-time. Modulation signal generator and modulation source support external audio and microphone;
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Digital standard communication testing (option)：10MHz bandwidth digital vector signal
generation and analysis, bit error rate measurement, with real-time output interface of digital demodulation;
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Frequency-hopping testing (option)：60MHz transient bandwidth frequency-hopping
signal generation and analysis. Frequency-hopping analysis supports measurements types like waterfall chart and frequency-time. Single capture lasts 1.3s at the bandwidth of 60MHz and the time resolution is 10ns;
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Audio signal testing：audio signal generation and analysis, the max. audio input level reaches 30Vrms (high impedance), the max. audio output level reaches 7Vrms (high impedance); capable of measurements on frequency, level, SINAD, SNR and distortion
degree; audio generation supports dual-tone output; individual adjustment is available for dual-tone frequency and amplitude, phase is adjustable relatively;
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Dual-channel oscilloscope (option)：DC～4MHz；
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Auto testing software：on-line editing of DUT (device under testing) parameters, auto pilot testing, yield of testing reports and other functions. The PTT control interface regulates transmit and receiving of DUT;
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Built-in attenuator with high power: the max. input power is as high as 150W; ;
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Portable structure: external dimensions (without handles): W426×H222×D180mm, easy for carry-on and application;
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Diversified power supply modes：the standard configuration supports AC220V or
DC24V, built-in lithium battery is available;
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Support network interface programming control;
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10.4” large screen, resistor touch screen, English/Chinese interface, interface colors are free for your choice;
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Support simultaneous operations on multi-function windows, up to 4 windows can be operated at the same time.
Auto testing functions of radio communication equipment
Can create and edit models, parameters and qualified specification limits of DUT. Choose your DUT and connect testing cable, the comprehensive tester will automatically conduct the testing. It controls transmit and receiving of the DUT by PTT. When the DUT needs setup or the cable needs being changed, the tester will automatically halt the testing and indicate further operation. The testing goes on after the operation is finished. Qualified and unqualified items will be listed directly. Other functions, like storage, viewing, comparison and remote readout, are also available.
Transmitter testing
It can conduct simultaneous tests on various performance specifications of transmitters, like signal power, frequency error, signal modulation characteristics, demodulation audio, and so on. Audio signals of transmitters can be provided and single/double tones are available for your choice. It can simulate pilot signals.
Receiver testing
It’s able to send out FM, AM and SSB RF signals; analyze audio demodulation of the receiver; measures accurately audio frequency, voltage, distortion degree, SINAD and SNR.
Function as a RF signal generator
Analog modulation of FM, AM, SSB etc and digital modulation of BPSK, QPSK, 8PSK, GMSK,16QAM and so on can all be output. The max. symbol rate of digital modulation is 5MHz. The tester upholds generation of 60MHz transient bandwidth frequency-hopping signals.
RF receiving and demodulation
Techwin Radio Communications Tester TW8800, is capable of demodulation and analysis of analog modulation like FM, AM, SSB etc and that of digital modulation signals including BPSK, QPSK, 8PSK, GMSK and 16QAM. Demodulation parameters and waveforms can be output. The max. demodulation bandwidth of analog modulation signals reaches 300kHz and the max. symbol rate of digital modulation and signal demodulation is 5MHz. Narrow band power measurement is available.
Sweep spectrum analysis
It enjoys wide frequency band, high resolution, high sensitivity, big dynamic range and other characteristics.
Frequency-hopping signal analysis
The max. transient analysis bandwidth of frequency-hopping signals is 60MHz. The display types are three-dimensional spectrum graph, time-frequency graph and time-amplitude graph. The tester can capture, store and analyze frequency-hopping signals. You can view spectrum and modulation domain graphs at any time. When modulation domain measurement is in progress, it is capable of accumulation and display of frequency points within any timeframes. Frequency-hopping points can be observed directly. Pulse signals and transient signals can also be measured.
Audio signal generation
Single and double tones are available for your choice. The max. output level reaches 7Vrms.
Audio signal analysis
Audio filter is optional. The max. input level is up to 30Vrms. The tester supports measurements on frequency, level, distortion degree, SINAD and SNR, as well as audio waveform display.
Simultaneous operation on multiple windows
Support simultaneous operation of 4 windows at most, each window can be enlarged individually.
Typical applications
Techwin Radio Communications Tester TW8800 is extensively employed due to the powerful functions and performances, which is used for R&D, repair, maintenance and testing of communication equipment.
Technical specifications:
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Name
|
Specifications
|
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RF single generation
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Freq. range
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1MHz～1.05GHz(TW8800A)，
1MHz～3GHz(TW8800B)
|
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Freq. resolution
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1Hz
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Output level range
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GEN：-120dBm～+5dBm(max. modulation 0dBm)
T/R interface：-130dBm～-35dBm
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Level resolution
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0.1dB
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Level accuracy
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±1.5dB(≥-110dBm)，±2.0dB(＜-110dBm)
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Single sideband
phase noise
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-93dBc/Hz@20kHz(≤1.05GHz)，-90dBc/Hz@20kHz(＞1.05GHz)
|
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Harmonic
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Better than -25dBc(＞1MHz，≤0dBm)
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Non-harmonic
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Better than -35dBc(＞1MHz，+5dBm output)
|
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Internal analog
modulation source
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Sine, square wave, triangle, saw-tooth, dual-tone(analog pilot)
|
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Internal FM
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Max. frequency offset：150kHz Accuracy：±5%(frequency offset 5kHz～150kHz)
Modulation rate：20Hz～20kHz
|
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Internal AM
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Modulation range：0～100% Accuracy：±5%(relative value，depth 10%～90%)
Modulation rate：20Hz～20kHz
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Internal SSB
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Modulation options：USB、LSB
Modulation rate：300Hz～5kHz
|
|
|
|
|
|
Name
|
Specifications
|
|
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External
FM/AM/SSB
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Modulation rate：20Hz～15kHz（FM，AM），300Hz～3kHz（SSB
|
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Vector signal generation (option)
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Modulation type：2ASK, 2FSK, GMSK, BPSK, QPSK, 8PSK, 16QAM
Max. modulation bandwidth：10MHz Max. symbol rate：5MHz
Digit source：PRBS, whole 0, whole 1, 0 and 1 alternation, external digital filter: RC, RRC, GAUSS
EVM：≤2%rms（symbol rate≤1MHz），≤3%rms（symbol rate＞1MHz
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Frequency-hopping
signal generation
（option）
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Max. frequency-hopping transient bandwidth：60MHz Max. non-repetitive hopping graphic length：4000 Frequency agility time：＜10μs
Max. hopping rate：100,000 times/sec
Hopping type：internal stepping repetition, external frequency control
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Broadband power measurement
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Frequency range
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400kHz～1.05GHz(4945B)，400kHz～3GHz(4945C)
|
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Measurement range
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0.1mW～100mW (ANT interface)，100mW～150W(T/R interface，＞ 40W，continuous input for a single time should not be longer than 1 min, interval between two consecutive input should not be shorter than
2 min.)
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Measurement
accuracy
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15％（≤120W，CW or frequency modulation）
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Narrow band power measurement
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Frequency range
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300kHz ～ 1.05GHz(4945B, low frequency depends on small IF bandwidth)
300kHz～3GHz(4945C, low frequency depends on small IF bandwidth)
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Measurement range
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+51dBm～-40dBm(T/R interface, low frequency depends on small IF bandwidth)
+10dBm～-80dBm(ANT interface, low frequency depends on small IF
bandwidth)
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Measurement
accuracy
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±2dB
|
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Receiving
bandwidth
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6.25, 8.33, 10, 12.5, 25, 30, 100, 300kHz
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Frequency error meter
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Frequency range
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300kHz ～ 1.05GHz(4945B, low frequency depends on small IF bandwidth)
300kHz～3GHz(4945C, low frequency depends on small IF bandwidth)
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Accuracy
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Frequency standards±1Hz
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=Audio signal generation
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Waveform
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Sine, square wave, triangle, saw-tooth
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Signal type
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Single-tone, dual-tone
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Frequency
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20Hz～20kHz(sine)，20Hz～4kHz(square wave, triangle, saw-tooth)
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Frequency
resolution
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0.1Hz
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Level range
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1mV～7Vrms（10kΩ load）
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Level accuracy
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±5%（10kΩ load≥10mVrms）
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）
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Name
|
Specifications
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Audio signal analysis
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Input impedance
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150Ω, 600Ω, high impedance
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Max. input level
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30Vrms（high impedance）
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Audio filter
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Low-pass：300Hz, 5kHz, 15kHz, 20kHz
Band-pass：0.3～3.4kHz, 0.3～5kHz, 0.3～15kHz, 0.3～20kHz
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Frequency meter
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Frequency range：20Hz～20kHz Input level：20mV～30Vrms Resolution：0.1Hz
Precision：1Hz
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Level meter
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Frequency range：20Hz～20kHz Input level：1mV～30Vrms Unit：V, dBV, dBm
Precision：±5%（High impedance, ≥10mVrms）
|
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SINAD meter
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Measurement range：3～60dB Precision：±1.0dB（SINAD＞3dB，≤40dB，5kHz low-pass） Frequency range：300Hz～5kHz
Input level：0.1～30Vrms
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Distortion meter
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Measurement range：0～90% Precision：＜±0.5%（distortion degree＜10%），＜±1.0% Frequency range：300Hz～5kHz
Input level：0.1～30Vrms
|
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SNR meter
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Measurement range：3～60dB Precision：±1.0dB（SNR＞20dB，≤40dB） Frequency range：300Hz～5kHz
Input level：0.1～30Vrms
|
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Sweep spectrum analyzer
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Frequency range
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100kHz～1.05GHz(4945B)，100kHz～3GHz(4945C)
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Sweep width
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0Hz～whole frequency bands
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Level precision
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±1.5dB
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Min. average
noise level displayed
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Better than-125dBm（ANT interface），-75dBm(T/R interface)
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Resolution
bandwidth
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30Hz～3MHz(1-3 stepping)
|
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Demodulation and analysis of analog modulation signals
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Frequency range
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300kHz ～ 1.05GHz (4945B, low frequency depends on small IF bandwidth)
300kHz～3GHz(4945C, low frequency depends on small IF bandwidth)
|
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Signal format
|
FM, AM, SSB
|
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Demodulation
bandwidth
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6.25、8.33、10、12.5、25、30、100、300kHz
|
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Demodulation
audio filter
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Low-pass：300Hz, 5kHz, 15kHz, 20kHz，
Band-pass：0.3～3.4kHz, 0.3～5kHz, 0.3～15kHz, 0.3～20kHz
|
|
Name
|
Specifications
|
|
|
Frequency range
of demodulation counter
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20Hz～20kHz
|
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Demodulation
counter resolution
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0.1Hz
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FM
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Frequency offset range：0～150kHz
Precision：±5%（frequency offset range 5～150kHz，modulation rate 1kHz）
Modulation rate：20Hz～20kHz
|
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AM
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AM depth range：0～100%
Precision： ±5% （ relative value， modulation range 30% ～ 90%， modulation rate 1kHz）
Modulation rate：20Hz～20kHz
|
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Sensitivity
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≤-100dBm（10dB SINAD，ANT interface）
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Demodulation and analysis of vector signals (option)
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Frequency range
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300kHz ～ 1.05GHz (4945B, low frequency depends on small IF bandwidth)，
300kHz ～ 3GHz (4945C, low frequency depends on small IF
bandwidth)
|
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Signal format
|
GMSK, BPSK, QPSK, 8PSK, 16QAM
|
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Demodulation
bandwidth
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10kHz～10MHz
|
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Max. symbol rate
|
5MHz
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Filter
|
RC, RRC, GAUSS
|
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Frequency-ho pping signal analysis(optio n)
|
Transient
bandwidth
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60MHz, 30MHz, 15MHz, 7.5MHz, 3.75MHz, 1.875MHz
|
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Capture storage
depth
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8Gb
|
|
Analysis domain
|
Time-frequency（modulation domain）, time-amplitude, time-spectrum
（waterfall chart）, spectrum at random time
|
|
Min. time
resolution
|
10ns
|
|
Dual-channel oscilloscope
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Frequency range
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DC～4MHz
|
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Vertical scale
|
10mV～10V/mark（1, 2, 5 stepping）
|
|
Horizontal scale
|
1us～1s/mark(1, 2, 5 stepping)
|
|
Coupling type
|
DC, AC
|
|
Input impedance
|
1MΩ
|
|
Digital sequence generation and bit error rate measurement
(option)
|
Digit format
|
PN3, PN5, PN9, PN11
|
|
Baud rate
|
300bps～1Mbps (BPSK, GMSK, 2FSK, 2ASK)
|
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Bit error rate measurement range
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0.1～0.000001
|
|
Name
|
Specifications
|
|
Internal
time-base
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Frequency：10MHz；aging rate：1×10-7/year；temperature stability：±0.05ppm(0～50℃)
|
|
Working
temperature
|
0℃～+50℃
|
|
Storage
temperature
|
-40℃～+70℃
|
|
Dimensions
|
External dimensions（without handles and auxiliaries）：W×H×D=426×222×180mm
|
|
Weight
|
Not more than 12kg
|
|
Power
|
Internal AC： 220V±10% ， frequency 50Hz±5 ％； external DC： 24V±2V （ 16V is acceptable）；
Built-in and rechargeable battery：≥11000mAh（option）
|
|
Consumption
|
＜100W
|
|
Cooling type
|
Internal air cooling
|
|
Interface
|
RF：GEN interface(TNC), T/R interface(type N), ANT interface(TNC) BNC：audio input, audio output, oscilloscope input etc
Others：network port（support remote control）, 26-core testing bus interface, USB-host
interface etc
|
Ordering information
Main equipment：
Radio Communication Tester TW8800A（300kHz～1.05GHz）
Radio Communication Tester TW8800B（300kHz～3GHz）
Standards configuration
|
No.
|
Name
|
Remarks
|
|
1
|
User’s Manual（with Programming Manual）
|
1 pc
|
|
2
|
Tri-core 220VAC power cord
|
1 pc
|
|
3
|
N-BNC adapter
|
1 pc
|
|
4
|
N-SMA adapter
|
1 pc
|
|
5
|
TNC-SMA adapter
|
1 pc
|
Options:
|
Serial No.
|
Name
|
Remarks
|
|
TW8800-H01
|
Built-in lithium battery
|
Capacity 11000mAh
|
|
TW8800-S01
|
Software for vector signal generation and bit error rate
measurement
|
See details in “Technical
specifications”
|
|
TW8800-S02
|
Software for vector signal demodulation and analysis
|
See details in “Technical
specifications”
|
|
TW8800-S03
|
Software for frequency-hopping signal generation
|
See details in “Technical
specifications”
|
|
TW8800-S04
|
Software for frequency-hopping signal analysis
|
See details in “Technical
specifications”
|
|
TW8800-S05
|
Software for dual-channel oscilloscope
|
See details in “Technical
specifications”
|
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