- Phone
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Address
No. 41 Suli Road, Wuzhong District, Suzhou City, Ganglong Caizhi C1313
Suzhou Deji Instrument Co., Ltd
No. 41 Suli Road, Wuzhong District, Suzhou City, Ganglong Caizhi C1313
Tonghui ultra-high frequency digital millivolt power meterTH2281BMeasurement frequency of ultra-high frequency millivolt meter: 9kHz-1200MHz; Measurement voltage: 1mV-10V, basic accuracy: ± 2%; Measurement power range: -47 dBm-33dBm; Equipped with RF probe; VFD display
Tonghui ultra-high frequency digital millivolt power meterTH2281B
Performance characteristics
■Measurement frequency range: 9kHz-3000MHz (coaxial detector)
9kHz-1200MHz(Probe)
■Measurement voltage range: 1mV-10V
■Measurement power range: -47dBm-33dBm, 20nW-2W (50 Ω load)
■Excellent frequency response and voltage standing wave coefficient (VSWR)
■Measurement display function: Clear VFD display with 4 1/2 dual readings
The main display shows one type of reading, and the secondary display can scroll to retrieve other readings
值: mV、V、W、dB、dBV、dBmV、dBμV、Vp-p
Relative values: dB,%, Max/Min, Comp
■Automatic range and manual range conversion function.
■It has automatic zero adjustment function.
■Standard USB_deV interface, optional GPIB and RS232C interfaces
■Software menu settings: Measurement dB,%, Max/Min, Comp reference value settings
Interface function settings: GPIB, RS232C
Introduction
■The TH2281 series ultra-high frequency digital millivolt/power meter covers a testing frequency range of 9kHz~3GHz, thus providing a blank space for measuring the entire range from low frequency to microwave in voltage measurement. The coaxial detectors and probes equipped with it are tools for RF and microwave laboratories, testing departments, and maintenance departments, and therefore have wide applications in factories, research departments, and schools.
application
Technical Specifications
model |
TH2281B |
Input configuration |
RF probe, 50 Ω coaxial tee, NJ type 50 Ω standard load (one) |
interface |
Standard USB_deV interface, optional GPIB and RS232C interfaces |
Basic accuracy |
± 2% of the reading value |
input impedance |
At low frequencies, the probe input impedance is ≥ 100k Ω, and a 50 Ω load coaxial tee is inserted to measure voltage and power. |
Measure voltage and power range |
3.8mV、 38mV、 380mV、3.8V、10V |
-35dBm、 -15dBm、 5dBm、 25dBm、33dBm | |
Overload voltage |
AC≤15Vrms DC≤50V |
Frequency response error |
9kHz-200MHz ±(4% of reading value+0.5% of full scale) 200MHz-800MHz ± (8% of reading value+0.5% of full scale) 800MHz-1000MHz ± (10% of reading value+0.5% of full scale) 1000MHz-1200MHz ± (12% of reading value+0.5% of full scale) |
Standing wave coefficient (VSWR) |
9kHz-200MHz 1.10 200MHz-800MHz 1.30 800MHz-1000MHz 1.35 1000MHz-1200MHz 1.44 |


