TC1204A Handheld Spectrum Analyzer
Contents
1. 10dBm to output Continuous wave signal as the measured signal Here is the figure about the result of inputting 500MHz IF as a reference The main channel power is 9 22 dBm Under the first adjacent channel channel power is 61 83dBm Frequency Counter Measurement HW 12 32 we N dB Measurement For the first adjacent lanes adjacent channel power 60 77dBm Under the second adjacent channel channel power is 63 70dBm For the second adjacent lanes channel power is 63 06dBm Under the third adjacent channel channel power is 63 47dBm Tosfy Technology Inc Add 2159 SE 55th Ave Hillsboro OR 97123 U S A Email master tosfy com Website www tosfy com tc ty For third adjacent lanes adjacent channel power is 64 62dBm F Channel Power Measurement We use a generator E4421B 500MHz 10dBm to output Continuous wave signal as the measured signal Here is the chart about the result of inputting 500MHz IF as a reference The measured results shows in the upper right corner of the display screen Power channel is 9 81dBm G Bandwidth Measurement We use a generator E4421B 500MHz 10dBm to output Continuous wave signal as the measured signal Here is the chart about the result of inputting 500MHz IF as a reference The measurement results display in the split screen window of the second half window and the bandwidth is 35KHZ H Using Preamplifier for Small Signal Measuring Adja2. J The Third Order Distortion Measurement In the following example We use a generator E4421B 500MHz 10dBm and another generator E4422B 501MHz 10dBm to output Continuous wave signal as the measured signal The two signals through a combiner are connected to RF input end of the spectrum instrument front panel Then we set the parameter input 500MHZ IF SMHZ Sweepwidth 1KHZ Resolution Bandwidth The measured K AM Modulation Signal Measurement Demodulation functions of spectrum analyzer can demodulate AM modulated signal from the carrier signal out and displayed on the screen In the following example we use signal generator Agilent E4421B which outputs a AM modulation signal as the measured signal carrier is 100 MHZ and 10 DBM continuous wave signal modulation frequency of 1 KHZ modulation depth of 100 We also frequency and amplitude difference will display in the cursor area of screen Here is the result MAE 1 kHz MANE 1 kHz Fgh fa 7 500 s The Third Order Distortion Measurement input 1OOMHZ IF O Sweepwidth and 10ms sweep time as a reference The measured period of the modulation signal is 1 233ms here shows below 444 100 MHz FAA fy 10 000 ms AM Modulation Measurement Tosfy Technology Inc Add 2159 SE 55th Ave Hillsboro OR 97123 U S A Email master tosfy com Website www tosfy com tc ty Customers can control remotely TC1204A Hand held Spectrum Analyzer by the
3. which is more than 50 kHz If the resolution bandwidth has been reduced to 1KHZ small signal overwhelmed can be shown and the frequency and the amplitude difference of unequal amplitude signals included C Frequency Counter Measurement In order to measure the signal frequency more accurately TC1204A hand held spectrum analyzer provides a frequency counter function compared to cursor measurement it can measure the signal frequency frequency interval but the two input signals can t be distinguished 30KHZ Resolution Bandwidth Measurement 1KHZ Resolution Bandwidth Measurement more accurately In the following example we use the signal generator Agilent E4421B with output 500MHz 10dBm as a continuous wave signal of the signal We input SOOMHZ IF LOMHZ Sweep width there are 1HZ 10HZ 100HZ 1KHZ can been chosen by users Here shows Tosfy Technology Inc Add 2159 SE 55th Ave Hillsboro OR 97123 U S A Email master tosfy com Website www tosfy com frequency 500 016666 MHz measured accurate to 1 HZ D N dB Bandwidth Measurement Here is the chart about the result of inputting SOOMHZz IF IMHZ Sweep width 30KHZ Resolution bandwidth NdB is open then the default is 3 N if needed press NdB key to change The measurement result is displayed in the active area If the current cursor dropped 3dB bandwidth is 31 666kHz E Adjacent Power Measurement We use a generator E4421B 500MHz
4. standard SCPI Standard Commands for Programmable Instruments and USB Connect the spectrum analyzer with USB interface automatically equipped to the PC correctly and turn on Update wizard dialog box of PC hardware will pop up please follow the wizard prompted to install driver USBDEVICE Resources searched will appear in the NI VISA USB Devices directory as well as USB interface information as shown below WI VISA USB Devic cS uzb drawer TC1204A can be used to communication test Double click to open USB control side of the remote control of PC software SARemoteControl Through the view gt SCPI command open the remote command control panel you can send commands and read data through the panel As shown in the figure below SCRIBES idn v ik ac WE Company EN As well as to be controlled via LAN Double click to open LAN control side of the remote control of PC software SARemoteControl open the remote command control panel you can send commands and read data through the panel In addition excellent guidance to troubleshooting and maintenance fault diagnosis and troubleshooting and repair of TC1204A can be offered according to customers requirement Tosfy Technology Inc Add 2159 SE 55th Ave Hillsboro OR 97123 U S A Email master tosfy com Website www tosfy com tc ty Ordering Information Standard Configuration TC1204A Hand held Spectrum analyzer Host 9kHz to 3 6G
5. Hz Spectrum Analyzer CD ROM User s Manual Programming Manual AC DC adapter AC 9 V output input TC1204A TG 100 KHZ to 1 5 GHz tracking signal source TC1204A RBW 1 HZ resolution bandwidth TC1204A AMA Audio demodulation AM measurement FM ieee measurements high fidelity headphones Tosfy Technology Inc Add 2159 SE 55th Ave Hillsboro OR 97123 U S A Email master tosfy com Website www tosfy com
6. Signals Resolution bandwidth Description Signal resolution is determined by the bandwidth of the IF filter namely the resolution bandwidth When there is a signal through the IF filter soectrum instrument scans out of the shape of IF filter bandpass Thus when the frequency of two equal amplitude signals comes in close proximity which will lead to the top of any one of the signal waveforms scanning a bandpass that covers almost all the other signals which looks like a signal If the two signals range but with close frequency the small signal may be overwhelmed by the large signal response Appropriate resolution bandwidth function is used to measure Intermediate frequency bandwidth we take the 3 db bandwidth of the filter as its resolution bandwidth to describe how to select the suitable one Tosfy Technology Inc Add 2159 SE 55th Ave Hillsboro OR 97123 U S A Email master tosfy com Website www tosfy com tc ty Distinguish Between Two Equal Amplitude Signals Typically to distinguish between the two signals of equal amplitude the bandwidth must be less than or equal to two signal frequency interval For example to distinguish two 1 KHZ continuous signal 1 KHZ or smaller resolution bandwidth should be selected Here is the chart about the result of inputting 1800 5MHz If now the resolution band width RBW has been reduced to 100HZ there will appear two signals if you continue to reduce RBW they will be more clearly show
7. Tosfy Technology Inc TC1204A Hand held Spectrum Analyzer TC1204A handheld spectrum analyzer adapts high resolution of large 6 5 inch screen with an impressive and delicate performance The unit is small and light weight which is easy to carry with a 6000 mAH large capacity rechargeable battery it can continuously work up to 4 hours and equipped with man machine interface of a similar desktop spectrum analyzer it possesses much advanced technical index which is superior to those from mainstream portable spectrum analyzer for applications of indoor and outdoor tests It can also be connected to PC by which it can display test images by controlling remotely Universal USB and LAN communication interface make it more convenient to user friendly measurement with the standard complete SCPI command set which can build and upgrade the integrated test system quickly Features Provided most handheld spectrum analyzer test function with superior technical index Frequency range 9kHz 3 6GHz Optimum sensitivity 148dBm Resolution bandwidth 10Hz 3MHz Tosfy Technology Inc Add 2159 SE 55th Ave Hillsboro OR 97123 U S A Email master tosfy com Website www tosfy com tc ty AM FM demodulation frequency count 100kHz 1 5GHz tracking generator 6 5 inch highlight TFT color LCD 6000mAH li ion battery up to 4 hours durable used Structure Size 288x182x142mm PC control software easy to save and manage test data Weight
8. cent Power Measurement Bandwidth Measurement We use a generator E4421B 500MHz 80dBm to output Continuous wave Tosfy Technology Inc Add 2159 SE 55th Ave Hillsboro OR 97123 U S A Email master tosfy com Website www tosfy com tc ty signal as the measured signal Here is the chart about the result of inputting 5OOMH2z IF LOMHZ Sweep width 20dBm Reference level as a reference I Harmonic Distortion Measurement We use a generator E4421B 300MHz 10dBm to output Continuous wave signal as the measured signal Input 200MHZ as its starting frequency and1GHZ as its ending frequency the fundamental then the second harmonic signal and the three can be displayed clearly on the screen you can also select Peak and Marker as a test Press Peak button then it marks fundamental frequency of 300MHZ amplitude of 10DBM On the second harmonic you can read the measurement result frequency offset is 300MHz the magnitude of the Using Preamplifier for Small Signal Measuring difference is 26 55dB On the third harmonic you can read the measurement result frequency offset is 601 333334GHz the magnitude of the difference is 38 00dB Then Here formed the testing output of graphics of the Fundamental and harmonic signal of soectrum analyzer Harmonic Distortion Measurement Tosfy Technology Inc Add 2159 SE 55th Ave Hillsboro OR 97123 U S A Email master tosfy com Website www tosfy com tc ty
9. ge 100kHz 1 5GHz Output flatness 3dB Common parameter Radio frequency input output USB LAN Output power m 30dBm OdBm 1dBstepping SMA female 500 USB 1 1 equipment side 10 100 Base T RJ 45connector AM FM modulation Benchmark input out 10MHz BNC female Input power OdBm put 10dBm output OdBm 2dB 288x182x142mm Less than 3kg 0 C 40 C 40 C 70 C 7 4V 6000mAh input 100V 240V 50 60Hz 1 5A 9V 4000mA Power consumption 13W Inside data storage 128MB Upper computer USB LAN Pc display test software Maximum size weight Operating temperature Storage temperature battery ower p adapter output Tosfy Technology Inc Add 2159 SE 55th Ave Hillsboro OR 97123 U S A Email master tosfy com Website www tosfy com Some Power Measurements Here we can see some test results according to different examples Firstly we can input Frequency 300MHz Amplitude 10dBm as a test TC1204A spectrum analyzer measurements FIN fe 20 000 ms A Continuous Wave Signal Measurement One of the most common measurement tasks about spectrum analyzer is to measure the frequency and amplitude of the signal In the following example we use a generator E4421B 300MHz 10dBm to output Continuous wave signal as the measuring signal Here is the chart Measurement of Sine Signal about the result of inputting 300MHz 9 44dBm B Application of the Resolution Bandwidth to Distinguish Closely Spaced
10. less than 3kg Technical index Frequency range 9kHz 3 6GHz Frequency resolution Frequency readout frequency marker countxfrequency benchmark accuracy precision 1 xsweep width 10 xRBW 0 5x sweep width sweep point 1 1Hz Internal standard lt 1ppm year 10MHz Temperature lt O 5ppm 15 C 35 C stability Resolution bandwidth a 10Hz 500kHz from 1 to 10 serial stepping IMHz 3MHz 60dB 3dB RBW lt 500kHz lt 5 _ typical value Video bandwidth 10Hz 3MHz VBW Displayed average noise level 10Hz Resolution bandwidth radio frequency attenuator OdB 138dBm Tosfy Technology Inc Add 2159 SE 55th Ave Hillsboro OR 97123 U S A Email master tosfy com Website www tosfy com Frequency offset 10kHz 80dBc Hz Frequency offset 30kHz 90dBc Hz Frequency offset IMHz 115dBc Hz Sweep width 10ms 3000s tonccsrancacte Osweep width sf ams 30005 o Sweep mode Serial single resolution 1Hz 10Hz 100Hz 1kHz Uncertainly angle Frequency countxfrequency benchmark accuracy counter resolution frequency 90 OdBm 50dBm permissible input esos oOo direct current voltage Input attenuator O 39dB 3dBstepping EE compression SHI cos 80d Input related stray ee lt 60dBc Tosfy Technology Inc Add 2159 SE 55th Ave Hillsboro OR 97123 U S A Email master tosfy com Website www tosfy com singe oo o G O residual response lt 85dBm Tracing source Frequency ran
11. n on the screen like this Distinguish Between Two Unequal Amplitude Signals In this case to distinguish two unequal amplitude signals with a frequency deviation of 50kHz and the magnitude gap of 40dB To distinguish between the two unequal amplitude signals resolution bandwidth must be less than the frequency interval of the two signals the same as the resolution of two equal amplitude signals however the maximum frequency resolution bandwidth of two unequal amplitude IF SOKHZ Sweepwidth 1 KHZ Resoluti on bandwidth ths 1 Sik FIRR fe 75 000 ms KHZ Resolution Bandwidth Measurement 100HZ Resolution Bandwidth Measurement signals is mainly decided by the rectangular coefficient of IF filter rather than 3dB bandwidth It is defined as the bandwidth ratio of 60dB and 3dB bandwidth of the IF filter t a 60dB DS l l 1 iy ay l I l I 60dB LF wv We ofa Coefficient Between Bandwidth and Rectangular Tosfy Technology Inc Add 2159 SE 55th Ave Hillsboro OR 97123 U S A Email master tosfy com Website www tosfy com Here is the chart about the result of inputting 1800 025MHz IF 500KHZ Sweep width 30KHZ Resolution bandwidth In addition rectangular coefficient of TC1204A spectrum analyzer of resolution bandwidth of the filter is about 5 to 1 If the resolution bandwidth is for 30 kHz 60 db point is 115 kHz half the bandwidth is 57 5 kHz
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