ST-128/128Q Signal level meter

Handhold Design Limit test and Auto test Channel spectrum scanning spectrum analysis PC Toolbox Software(option)Support USB device and RS-232 connection Analog, Digital,FM and Dual channel measurement Support QAM 32 64 128/ITU-TJ.83 Annex A/B/C Channel Power, MER, BER Constel

Specifications：

ST-128/128Q Signal level meter 

 
ST-128/128Q Signal level meter  The instrument adopts the all-number display, the readings on the measuring instrument are clear and precise, and owing to the introduction of the micro processing unit, therefore, it makes its functions stronger, the precision higher, operation more flexible and convenient. The large screen figure monitor is very convenient to measure the main technical targets of CATV system. It has the functions such as the single-channel, multi-channel, all-band scanning, difference-carrying measurement, signal-to-noise ratio (SNR, S/N) measurement and spectrum analysis frequency analysis etc.

Tuning range:from 5M~870MHz
Tuning mode:by channels or by frequency

Level measurement
Analogue channels Measurement
IF bandwidth:280kHz+50kHz
Input impedance:75ohm
Measuring range:from 25 to 120 dBuv
Accuracy:+2dB (from 0 to 400C)

Digital channels Measurement
MER (modulation error ratio) measurement range:19~35dB for 64 QAM
Accuracy :+2dB
BER (bit error rate) measured before RS decoding measurement range:10E-2 to 10E-8
Symbol rate:1MS/S-7MS/S
Modulations type:16/32/64/128/256QAM DVB-C/ITU-TJ.83-AnnexA
Bandwidth:8MHz
Frequency tuner:100 KHz
Measuring range:from 40 to 120 dBuv
Accuracy:+3dB (from 0 to 400C)
MODEL NO
Frequency
Range
Constellation
 diagram
Features
Main Indexes
LCD
ST-128
46~870MHz
No
＊Handhold Design
＊Level and V/A
＊Tilt and C/N measure
＊Channel spectrum scanning
＊Spectrum analysis
＊Trunk Voltage
＊Channel and single frequency  mode
＊Signal Level Measurement  
   Range   30dBμV ~ 120dBμV  
   Level Precision                  1.5dB 
＊Spectrum Analysis  
   Span      4.5MHz,9MHz,18MHz 
                 36MHz,128MHz   
＊Frequency 
   46MHz~870MHz(GQ-S200)  
   5MHz~870MHz (GQ-S200D)  
＊Digital Channel Power  
   Bandwidth        0.28MHz~9.99MHz
128 * 128 LCD
 
ST-128Q
5~870MHz
 
MODEL NO
Frequency
Range
Constellation
 diagram
Features
Main Indexes
LCD
ST-1128
46~870MHz
No
＊Handhold Design
＊Channel spectrum scanning
＊spectrum analysis
＊Limit test and Auto test
＊PC Toolbox Software(option)
＊Support USB device and RS-232  connection
＊Analog, Digital,FM and Dual channel measurement
＊Support QAM 32 64 128/ITU-TJ.83  Annex  A/B/C
＊Channel Power, MER, BER
＊Constellation Diagram (option)
＊Signal Level Measurement  
   Range              30dBμV ~ 120dBμV  
   Level Precision                   ±1.5dB 
＊Spectrum Analysis  
   Span      4.5MHz,9MHz,18MHz 
                 36MHz,128MHz  
＊Frequency 
   46MHz~870MHz(GQ-S200)  
   5MHz~870MHz (GQ-S200D)  
＊Digital Channel Power  
   Bandwidth        0.28MHz~9.99MHz
128 * 128 LCD
 
ST-1128Q
5~870MHz
ST-1129
46~870MHz
Yes
ST-1129Q
5~870MHz