[product introduction]
TLD1728 series of digital / analog field strength meter is mainly used for analog and digital TV network construction and maintenance, fast digital average power and enhanced spectrum scanning function can easily achieve fault diagnosis of network analysis, network security in normal operation. More suitable for digital, analog hybrid network measurement and two-way network measurement. TLD1728 series of measurable slope (option 5 channel), C / N, the mains voltage, V / A, user self selected channel, user self correction, automatic scanning, real spectrum measurement, convenient numeric keys directly input channel frequency value and storage storage up to 24 groups of scan data (n = 100), can be transferred out of the storage data browsing, undervoltage is automatically with automatic shutdown protection function, TLD1728 for large screen LCD display, dot matrix LCD 128 * 128, comes with high-end equipment backpack, has the advantages of small volume, light weight, appearance. TLD1728 also has strong Chinese menu setting function: automatic shutdown time setting, unit conversion level, frequency step setting, set the slope channel, channel error correction, scan audio settings, set the channel mode selection, channel ordering, the instrument also can accurately measure the average power of DVB-C digital signal (TLD1728 Series), particularly suitable for current analog digital hybrid network testing, installation and other work.
[main function]
U accuracy of QAM performance index detection and analysis -- average power, MER, BER
U supports a variety of DVB modes: 16QAM, 32QAM, 128QAM, 256QAM, 64QAM
U wide rate setting: 7MS/S - 1MS/S
QPSK COFDM u power detection
U positive and reverse system detection function
U simple spectrum analysis function, can truly reflect the actual channel of the spectrum
U full automatic simulation, digital channels create features, for any network detection
U comprehensive analog TV target detection - level, C/N, V/A, slope, automatic detection, etc.
U fast charge, ultra long working time, is suitable for all kinds of measurement needs
U with constellation function (TLD1728X)
[key technical indicators]
Digital DVB measurement index
U frequency range: (5) 47MHz ~ 870MHz
U demodulation form: J.83-Annex A DVB-C/ITU-T
U support: 16/32/64/128/256QAM
U digital average power: 40 dB V ~ 110 dB V
U accuracy: 2.5 Db
U bandwidth: can be set
U symbol rate: 1MS/S ~ 7MS/S
U modulation error rate 20dB 40dB ~ MER:
U accuracy: 2dB
U bit error rate R S - BER: before 10-3 ~ 10-9
Level measurement
U frequency range: 5MHz ~ 870MHz
U resolution bandwidth: 280KHz + 50KHz
U channel range: China standard channel 1CH ~ 56CH China addition channel Z43 ~ Z01
U range: 30dBuV ~ 120dBuV
The accuracy of U: 1.5dBuV (20 C 10)
U input impedance: 75
U detection: peak detection
Automatic scan measurement
U Scan Channel: up to 125 channels
U scan range: (5) all the selected channels within the range of 47 ~ 870MHz
U scan speed: 30 channels / points
The number of u memory cell: image and audio level up to 125 channels, the value of voltage measurement
U measurement range: 0 ~ 100V exchange
U measurement accuracy: + 2.5V
U resolution: 0.1V
Noise ratio measurement (measurement results for reference only)
U signal range: 80 dBuV ~ 105dBuV
Other [other]
U dimensions: 210mm x 95mm x 48mm
U weight: 1.2 kg
U working temperature: -10 to 45
U monitor: imported dot matrix LCD
Power Supply
U DC supply: DC7.2V/1.45AH nickel metal hydride battery
U exchange supply: AC220V/50Hz 10%
U battery working hours: continuous working time is more than 3 hours
U battery charge time: 12-14 hours
Random accessories
U: 1 charger for charging power supply
U RF input connector: F type 1, TAC type 1
U instruction: 1
[series product function comparison]
Model
Display
Constellation chart
Function contrast
TLD1728
TFT LCD screen
No
Digital TV intensity meter, advanced spectrum, automatic spectrum scanning, average power, A/V, C/N, threshold, alarm statistics.
TLD1728M
No
Digital TV intensity meter, advanced spectrum, automatic spectrum scanning, average power, A/V, C/N, MER, BER, threshold, alarm statistics.
TLD1728X
Yes