• Frequency range: 9kHz to 6.0GHz
• DANL: -166 dBm @1GHz (Sensitivity set to High , RBW normalized to 1Hz)
• RBW: 10Hz to 5MHz
• Multi-screen: maximum 4 windows
• Android operating system: touch screen operation, multitouch, easy-to-use.
• Compact size (191mm×93mm×61mm) and light weight (0.9kg, including the battery)
• 4 hours operating time
• Support interference signal hunting with AoA algorithm. Map service provided by “OpenStreetMap”
• Working as drive test scanner for propagation model tunning. Support a maximum 40km/h driving speed
Spectrum Analysis
Swept-tuned Spectrum Analysis
The swept-tuned spectrum analyzer analyzes the stable and cyclically varying signals and provides signal amplitude and frequency information.
Zero Span
As an instrument for frequency domain measurements, SpecMini can perform time domain measurements in zero span mode.
Waterfall Display
SpecMini provide Waterfall display (also called spectrogram). This function allows user to check spectrum in both frequency and time domain. User can easily find aperiodic target signal in waterfall display.
High Sensitivity
SpecMini provide superior DANL as low as -168dBm/Hz, promising a 10 to 20 dB better performance compare with other handheld spectrum analyzer.
Spectrum Measurement Functions
Occupied Bandwidth(OBW)
With SpecMini OBW measurement function in，Engineers can easily measure signal channel bandwidth which include its 99% power (ratio could be adjusted).
NdB Bandwidth
With SpecMini NdB bandwidth measurement function, instrument can test target signal’ s NdB bandwidth automatically.
Channel Power
Channel power refers to the power and power spectral density within a particular channel bandwidth. SpecMini can automatically test the channel power of a given bandwidth.
Adjacent Channel Power Ratio (ACPR)
Adjacent channel power ratio(ACPR) measurements help check for signal leakage, identify and control sources of interference. SpecMini provides automated adjacent channel power ratio measurement.
RF Field Test
Propagation Model Tuning
The SpecMini has a built-in GPS module for stamping latitude and longitude info on spectrum results. Test result with GPS stamp can be stored as screenshots. It is convenient for engineers to match test data and test sites. Also SpecMini can output .csv file which include signal power and GPS info for the after analysis of propagation model tuning. That is to say, SpecMini can works like a CW drive test scanner. With its powerful Android platform and superior measurement speed, user can drive as fast as 40km/h when doing drive test.
Interference Signal Hunting with AoA Algorithm
With this powerful featured APP and optional high performance directional antenna. SpecMini can be used as a ultra compact interference signal locator (map service provided by “OpenStreetMap”). Steps are as follow:
1. User perform a 360° test, lock the direction which he receive strongest interference and make a vector on digital map.
2. User drive to more test locations and repeat step 1. Finally we should get 3 to 5 vectors on map, which cross with each other and enclose a small area.
3. The estimate location of interference is in that small area. User drive in the small area and find the final location with tone signal indicator.
Transmission System Set up and Maintenance
When using for transmission system set up and maintenance，SpecMini can provide：
1. Evaluate signal quality with spectrum analysis
2. Spectrum analysis for mainstream mobile network signal
3. Perform cable test and wireless test for transmission system
Frequency Check
Frequency check is to test the expected frequency band and estimate the interference of the frequency band before building the wireless network coverage. Spectrum measurement with SpecMini is a means of frequency check. Its spectrum results determines the interference frequency and bandwidth; Waterfall display determines the time characteristics of the interference signal.
Multi-touch Operation
SpecMini is based on android. It support multi-touch operation. User can change reference level and center frequency with 1 finger and zoom the span with 2, just like a smart phone.
Multi-task Measurement
SpecMini can simultaneously open 4 windows for measurement tasks with different setting.
Data Store and Transfer
SpecMini provide 8G internal storage. It can save screenshot/data/setting and transfer them via USB/OTG/WiFi/Bluetooth, even upload to cloud storage.
FM demodulation
This customized application support FM demodulation in relevant channel, and play and record FM content as evidence.
Software customization
Transcom provides SpecMini-based software customizing services. Variety of application and software can be pre- installed or build in SpecMini as users demanded.
Transcom also proactively open the API of SpecMini and encourage distributors make your clients’ requirements into customized features on SpecMini.
• GNSS interference Analysis
This customized application can analyze GNSS (GPS, Beidou) signal quality through CNR Loss and JNR. Spectrum function coordinating with the customized application makes traditional testing more convenient.
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Key Functions |
|
|
Measurement |
ACPR，CH Power, OBW, Phase Noise, and N |
|
Demodulation |
Digital signal, FM and LTE |
|
Trace |
3 Traces: A, B and C Trace operation: Clear/Write, Maxhold, Minhold, Average, View, Hide |
|
Sweep |
Continuous/single |
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Trigger |
Free Video (zero span) |
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Marker |
8 maximum, support 1 reference with 7 Delta Markers Peak Search, Marker Delta, Marker+, Marker- |
|
Span |
T8260: 0Hz, 100Hz to 6.0GHz Frequency Slip, Span Zoom (1-2-5-10 series, 4GHz, 6GHz) |
|
Scale |
Log/Lin Log: 0.1 to 1, 0.1 step Lin: 1 to 10, 1 step |
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Unit |
dBm, dBuV, dBV, W, mW, uW, pW, V, mV, uV |
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Sensitivity |
Low, Medium and High |
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Detector |
Positive, Negative, Sample, Average, RMS |
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Reference Level Offset |
-50dB to 50dB |
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Multi-screen |
4 maximum |
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Frequency |
|
|
Frequency Range |
T8260: 9kHz to 6.0GHz |
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Frequency Reference |
Aging Rate: ±1ppm |
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Frequency Readout Accuracy |
±( (Readout Frequency + 1GHz) x Frequency Reference + Frequency Span |
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Frequency Span Accuracy |
±1% |
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Sweep Time |
1.2ms to 1600s 2.69ms to 1600s, zero span |
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Resolution Bandwidth |
|
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RBW Range |
10Hz to 5MHz (1-2-3-5-10 Series) |
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RBW Accuracy |
RBW≥1MHz, ±10% RBW＜1MHz, ±2% |
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Amplitude |
|
|
Measuring Range |
Display Average Noise Level to +20dBm |
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Input Attenuator Range |
0 to 30dB, 1dB Step |
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Maximum Safe Input Level |
Sensitivity (Low): +30dBm Sensitivity (Medium): 0dBm Sensitivity (High): -20dBm |
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Reference Level Range |
-140dBm to +20dBm -440dBm to +220dBm (Reference level offset: ON) |
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Amplitude Accuracy |
ATT set to 0 dB, input signal: -5 to -30dBm; detector set to Positive, ±1.5dB |
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RBW Switching Uncertainty |
±0.3dB |
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Input Attenuator Uncertainty |
±0.6dB |
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Accuracy of Reference Level |
Reference level ≥-60dBm, ±0.8dB |
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Display Average Noise Level (DANL) |
T8260: Input Terminated,Detector set to Positive,Trace Average set to 1000, 5MHz center frequency: Sensitivity Low: -129dBm/Hz (typically -131dBm/Hz) Sensitivity Medium: -129dBm/Hz (typically -131dBm/Hz) Sensitivity High: -149dBm/Hz (typically -150dBm/Hz) 1GHz center frequency: Sensitivity Low: -131dBm/Hz (typically -133dBm/Hz) Sensitivity Medium: -149dBm/Hz (typically -151dBm/Hz) Sensitivity High: -166dBm/Hz (typically -168dBm/Hz) |
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Residual Response |
-75dBm |
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Input-related Response |
T8260: |
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Second Harmonic Distortion |
1.6GHz -70dBc |
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Third-order Intercept (TOI) |
-10dBm tones, 1MHz apart, Sensitivity set to low, Ref set to -10dBm +15dBm |
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P1dB |
+5dBm (nominal) |
|
Phase Noise @1GHz |
T8260: |
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General |
|
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System settings |
Reset, Save, Recall, Screen Copy, Print, Language, Service, About |
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Connectors |
RF input: N-type, female, 50Ω USB: USB type C Power interface: DC12v/4.5A |
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Display |
5.5-inch, 720p |
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Operating System |
Android |
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Battery |
Type: Lithium-ion Operating time: 5hours Charging time: 6hours Charging temperature: 0°C to +35°C, Must be in power of state |
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Operating Environment |
Operating temperature: 0°C to 50°C Storage temperature: -20°C to 70°C |
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Dimension |
197mm*93mm*61mm |
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Weight |
0.9kg |
Technical specifications
This technical specifications include the influence of probability distribution, measurement uncertainty and environmental factors on the instrument performance. It guarantee the performance under the following conditions.
• The instrument is ON and warmed up for 30min.
• The instrument internal reference signal is applied.
Testing temperature is 23±5 ºC, unless other specific condition applied.
Typical value
Additional description does not cover all performance information of the product guarantee. Unless otherwise specified, the typical value refers to the indicator or technical specification with which more than 80% of products comply under 23 ± 5 ºC. The measurement uncertainty is excluded. SpecMini should be within the calibration period.
Nominal value
The nominal value refers to the characteristic description or design range. It is not tested or covered by the product. SpecMini should be within the calibration period.
|
Model |
|
| T8260 |
SpecMini handheld spectrum analyzer (9kHz to 6GHz) |
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Accessories Model |
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SPM-AS001 |
Power adapter (20V/4.5A output) |
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SPM-AS002-I |
Power cable (China standard) |
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SPM-AS002-B |
Power cable (US standard) |
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SPM-AS002-G |
Power cable (UK standard) |
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SPM-AS002-F |
Power cable (EU standard) |
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SPM-AS004 |
USB data cable |
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SPM-AS005 |
USB OTG cable |
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SPM-AS006 |
Capacitive pen |
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SPM-AS007 |
Portable box |
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SPM-AS018 |
Portable soft bag |
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SPM-AS019 |
USB disk |
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SPM-S003 |
FM demodulation |
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SPM-S005 |
Waterfall display |
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Options |
|
|
SPR-S006 |
AoA locate |
|
Replacement options |
|
|
SPM-AS021 |
Replacement battery |
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Manufacturer |
Transcom SpecMini T8260 |
Keysight, N9340B |
Anritsu/ MS2712E/ MS2713E |
|
Frequency Range |
9kHz – 6.0GHz |
100 kHz – 3 GHz |
MS2712E: 9 KHz – 4 GHz; MS2713E: 9 kHz – 6 GHz |
|
Frequency Reference |
± 1 ppm |
± 1 ppm |
± 1.5 ppm < ± 50 ppb + GPS(optional) |
|
Measurements |
Occupied Bandwidth, Channel Power, ACPR, Phase Noise |
Spectrum Emission Mask, Field Strength, High Accuracy Power, Channel Power, OBW, ACPR |
Occupied Bandwidth, Channel Power, ACPR, C/I |
|
Interference Analyzer |
Spectrogram, Mapping(optional) |
Spectrogram |
Spectrogram, Signal Strength, RSSI, Mapping |
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DANL |
< -168 dBm @ 1 GHz |
<-144 dBm @ 1 GHz |
<-162 dBm in 1 Hz RBW |
|
Phase Noise |
-96dBc/Hz,@1GHz (10kHz offset) |
-89 dBc/Hz @ 1 GHz (30 kHz offset) |
-100 dBc/Hz max @ 10 kHz offset at 1 GHz |
|
Size |
197mm*93mm*61mm |
318mm*207mm*69mm |
273mm*199mm*91mm |
|
Weight |
0.9kg |
3.5kg |
3.45 kg |
|
Operating Time |
4 hours |
4 hours |
3 hours |
|
Operation |
Android Touch Screen |
Keyboard |
Keyboard + Touch Screen |
Case 1 – operator interference search
SpecMini handheld spectrum analyzer was chose by China Telecom Dongguan branch, using for interference locating.
On April 10, 2017, China Telecom Dongguan Branch, through backend statistics, found that a certain cell has interference in the upstream frequency band of frequency point No. 201 (ie, 831.03 MHz), which has affected the use of large areas of the network. It needs to pass the test. Find sources of interference and eliminate interference.
During the test, three buildings in the area were selected, then engineer used directional antenna on the roof to determine the direction of the interference. A three-point positioning test method was used to reduce the possible location range of the interference source. Therefore, a proximity-type interference test was conducted near the test area. As the interference source was approached, the reception level gradually increased and eventually the interference source was found in a store.
Case 2 – FCC base station brief check case
State Radio Spectrum Management Center is responsible for frequency attribution check. When operator plan to setup a new base station, spectrum management center need to check if the spectrum is clean and ready to use.
In 2015, a China Mobile branch reported that a new base station using 2590MHz to 2610MHz band needs to be build in an industrial park. In accordance with regulations, manage center shall verify the usage of the corresponding frequency band in the area before the base station is installed. In the park, 3 location, including the roof to install base station, a location near roof and a location far from roof were selected for verification. Through the frequency band attribution automatic inquiry function, SpecMini automatically shows that the frequency band to be measured belongs to China Mobile’s TD-LTE frequency band. Test result shows the band is clean and ready to use.
Case 3 – Spectrum Detection
In November 2017, our engineer cooperated with Red Square in spectrum investigation during the training of electronic countermeasure of an armed police detachment in Xinjiang. Using SpecMini and omnidirectional antenna, we found that there was a strong signal with a bandwidth of about 25 kHz and a level intensity of about – 40 dBm in a certain frequency band. Through confirmation, the frequency point was not the frequency used by Red Square communication, and it was suspected to be the Blue Square communication frequency. According to the level judgment, the communication frequency points are close to the red square. Specmini is used to coordinate with directional antenna and AOA function to determine the direction of the signal. The direction of the signal is about 70 degrees in the northeast. The direction of the signal is confirmed to be the azimuth of the blue side combat movement through combat communication.
During the actual training, SpecMini was also used to test the signal of bomb detonation and the signal of map transmission of individual armed police, and the application effect was good.
