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10Hz~18GHz Frequency Counter
Features:●Measure frequency up to 22GHz ●Dynamic and wide measure range ●High accuracy and high performance ●Advanced design, compact and plastic die-casting ●Reliability MTBF>8000h ●3.5 QVGA color LCD and soft keys ●Automatic and manual frequency, period measurement ●USB interface and GPIB optional  |
Input Characteristics | Frequency measurement range | 10Hz~18GHz | ||
Channel A | Frequency range | 10Hz~80MHz | ||
Resolution | 1Hz,10Hz,100Hz,1KHz,10KHz,9-digit high resolution is selectable | |||
Input sensitivity | 25mVrms(-20dBm) | |||
Maximum input level | 1Vrms(+13dBm) | |||
Burn-out level | 3Vrms(+23dBm) | |||
Input impedance | 1MΩ | |||
Low pass filter | The cut-off frequency is about 100kHz, selectable. | |||
Coupled mode | AC | |||
Frequency range | 60MHz~3.2GHz(the typical value of upper frequency limit can reach 3.8GHz, however, there is no technique data provided) | |||
Resolution | 1Hz,10Hz,100Hz,1KHz and 10KHz are selectable. | |||
Input sensitivity | 25mVrms(-20dBm)≤3GHz | |||
40mVrms(-15dBm)>3GHz | ||||
Maximum input level | 1Vrms(+13dBm) | |||
Burn-out level | 3Vrms(+23dBm) | |||
Input impedance | 50Ω | |||
Channel B | Frequency range | 2GHz~18GHz | ||
Resolution | 1Hz,10Hz,100Hz,1KHz,10KHz are selectable. | |||
Input sensitivity | ≤ -25dBm 2~12.4GHz | |||
≤-15dBm 12.4~18GHz(-20dBm Typical value) | ||||
≤-10dBm 18~22GHz(-15dBm Typical value) | ||||
Maximum input level | +7dBm(that less than 3GHz are typical values) | |||
Burn-out level | +20dBm | |||
Input impedance | 50Ω | |||
Standing-wave ratio | <3:1(Typical value) | |||
Time Base | Internal crystal oscillator | Nominal frequency | 10MHz | |
Daily aging rate | 1×10-8/day(Standard) | |||
5×10-9/day(Option I) | ||||
3×10-9/day(Option II) | ||||
External time base input | Frequency | 5MHz or 10MHz | ||
Amplitude | ≥1Vp-p | |||
Internal time base input | Frequency | 10MHz sinusoidal wave | ||
Amplitude | ≥1Vp-p | |||
Other Characteristics | Save and Recall Functions | 9 measuring modes for recalling | ||
Remote Control Interface | RS232 general serial interface,IEEE488 general interface(Option III) and USB general serial interface(Option IV). | |||
IEEE488 General Interface Function | SH1(complete source hook function) | |||
AH1(complete recipient hook function) | ||||
T4(complete speck function besides only speak) | ||||
L4(complete listen function besides only listen) | ||||
SR1(complete service request function) | ||||
RL1(complete remote control/local function) | ||||
DC1(complete device clearance function) | ||||
RS232 General Serial Interface | Pin No. | Symbol | ||
2 | RXD | |||
3 | TXD | |||
5 | GND | |||
Dimension | 270mm×370mm×110mm(W×D×H) | |||
Weights | About 2.5kg. | |||
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