- Contact Person : Mr. He Yong
- Company Name : Shanghai Grandway Telecom Tech. Co., Ltd.
- Tel : 0086-21-54451260
- Fax : 0086-21-54451266
- Address : Shanghai,Shanghai,6F,Xin'An Building,No.99 Tianzhou Rd.
- Country/Region : China
- Zip : 200233
TV Field Intensity Meter, CATV Tester, TV Power Tester
Detailed Product Description
TV Field Intensity applies to the need of the television and cable television engineering installation and detection, it is the high-performance surveying instrument specially designed for the cable television technical personnel. 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.
Features:
Accurate QAM testing: digital average power,MER, BER
Support multiple DVB mode: 16QAM,32QAM,64QAM,128QAM,256QAM
Single channel/Frequency simulated power levels testing.
Video and audio signal power levels testing
V/A testing. Show the frequency of video and audio,field intensity and power level difference simultaneously.
C/N testing. Slope testing,
QAM View includes BER, MER, and constellation
Applications
Cable modem analysis using Zero Span mode provides accurate, in-service power and C/N measurements.
QAM View option provides complete analysis of digital TV and forward cable modem signals.
Find ingress fast with Field View option. Cable technicians working in the field can see the reverse path at the headend.
Full, in-service, proof-of-performance analyzer.
Fast, sensitive spectrum analyzer.
Digital QAM carrier demodulation includes 16,32,64, 128 and 256 QAM constellation display with zoom, average digital power level, bit error rate (BER), and 22 to 39 dB modulation error rate (MER).
Specifications:
Channel/Frequency Index | ||||
Frequency Range | 46MHz --870MHz, 5MHz--870MHz (Only for type with letter D) | |||
Precision | 50ppm (at 25 +5 Celsius) | |||
Resolution | 50KHz | |||
Resolution Bandwidth | 280KHz | |||
Frequency step | 50KHz, 100KHz,500KHz | |||
Channel type | ||||
Analog TV | TV | |||
Digital TV | 16/32/64/128/256 QAM | |||
Frequency/Channel | SIGL | |||
Analog power level testing | ||||
measuring range | 25dBuV --120 dBuV | |||
Precision | ±1.5dB | |||
Resolution | 0.1 dB | |||
detection method | Peak value detection | |||
input impedance | 75Ω | |||
Digital power level testing | ||||
measuring range | 25dBuV -- 110 dBuV | |||
Precision | ±1.5dB | |||
Resolution | 0.1 dB | |||
detecting method | average power | |||
input impedance | 75Ω | |||
Voltage testing | ||||
input range | 0 --100V AC/DC | |||
precision | ±2V | |||
resolution | 0.1V | |||
Digital Channel | ||||
modulation mode | comply with DVB-C/ITU J83-A | |||
QAM mode | 16/32/64/128/256QAM | |||
Symbol Rate | 1MS/S-7MS/S | |||
Band width | set by user | |||
MER | 22-39 dB | |||
Precision | ±2dB | |||
BER | 1E-4--1E-9 | |||
Carrier-Noise ratio(C/N) | ||||
signal input range | >70dBuV | |||
measuring range | 20dB--50dB | |||
Precision | ±2 dBuV | |||
Resolution | 0.5dB | |||
Spectrum Analysis | ||||
Frequency Range | 5MHz--870MHz | |||
Resolution | 100Hz | |||
Precision | 50ppm | |||
power levels range | 25dBμV--120dBμV | |||
power levels resolution | 0.1dB | |||
power level Precision | ±1.5dB | |||
Dynamic range | 60dB | |||
input impedance | 75Ω | |||
RBW | 300KHz | |||
testing band width | 6MHz,12MHz,62MHz,All range scan | |||
slope testing | ||||
Number of channels | 5 | |||
resolution | ±0.1dB | |||
QAM testing function(Q model) |
Ordering Information:
GD300DQ | 5MHz to 870MHz, with QAM function |