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High Precision Low Frequency Spectrum Analyzer Full - Band Preamplifier

Wuhan Huajin Co., Ltd.
Wuhan Huajin Co., Ltd.
City: Wuhan
Province/State: Hubei
Country/Region: China
Tel: 86-27-86659761
Contact Person:
Miss Budlet

High Precision Low Frequency Spectrum Analyzer Full - Band Preamplifier

Brand Name : CETC 41ST
Model Number : AV4051
Place of Origin : SHANDONG
Price : Negotiable
Payment Terms : L/C, T/T
Supply Ability : 100 Sets A Weeks
Delivery Time : 5-8 WORK DAYS
Packaging Details : Conventional Packaging
Certification : CE
Major Characteristics : 10MHz standard analysis bandwidth (40MHz/200MHz, options)
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AV4051 series spectrum analyzer


AV4051 series spectrum analyzer has the advantages of broad bandwidth, high solution, high dynamic range, high precision, low phase noise and fast measurement speed.

AV4051 can provide the high performance services such as high sensitivity spectrum analysis, power analysis, analog demodulation test, multi-domain analysis, pulse parameter analysis, audio analysis, phase noise testing, millimeter wave frequency extension, noise figure testing and USB power meter.

AV4051 has a wide range of applications as follows: aviation, aerospace, communication, radar and navigation.

Broad frequency bandwidth range

(1) 3Hz—50GHz frequency bandwidth range;

(2) 9 kinds of Optional configuration of frequency bands;

(3) low frequency (<4GHz) or full-band preamplifier;

(4) Frequency extension up to 325GHz (options).

200MHz analysis bandwidth

(1) Flexible Bandwidth to choose from 10Hz to 200MHz;

(2) 10MHz standard analysis bandwidth (40MHz/200MHz, options);

(3) 64M sample memory depth (256M, options);

(4) Seamless capture time can be up to a few hours from 1.28 seconds.

Excellent testing performance

(1) The best measurement sensitivity: -152dBm/Hz;

(2) Measurement sensitivity at 50Hz: -127dBm/Hz;

(3) Phase noise: -115dBc/Hz carrier 1GHz @ 10kHz offset;

(4) All digital IF design.





Frequency range



Precise frequency reference

Frequency accuracy: ±(last calibration data× aging rate+temperature stability+calibration accuracy)
Aging rate: ± 1´10-9/day ,± 1´10-7/year
Temperature stability: ± 1´10-8(20°C ~ 30°C) ± 5´10-8(0°C ~ 55°C)
Calibration accuracy: ± 7 ´10-8

Frequency readout accuracy (sweep)

±(readout× frequency reference error+0.25% span+5% resolution bandwidth+2Hz+0.5 horizontal resolution)
*:horizontal resolution = span/(sweep points -1)

counting accuracy

±(Frequency read out× frequency reference error+0.1Hz)


Range:0Hz, 10Hz~4GHz/8GHz/13.2GHz/18GHz/26.5GHz/45GHz/50GHz
Accuracy:±(0.2%×span+span/(sweep point number-1))

Sweep time

(Bandwidth ≥10Hz): 1ms~4000s
(Bandwidth =0Hz): 1us~6000s

Resolution bandwidth

Range: 1Hz~3MHz (10% step),4,5,6,8MHz
Conversion Uncertainty: £ ± 0.5dB

Video bandwidth

1Hz~3MHz (10% step),4,5,6,8MHz

Signal analysis Bandwidth


Memory depth

64MSamples(extend 256MSamples)


Free, power, video, external level (front panel), external level (rear panel), burst power

Detection type

Normal, positive peak, negative peak, sampling, average, root mean square

Average type

Video average, Power average, Voltage average

Sideband noise

< -91dBc/Hz 100Hz
< -105dBc/Hz 1kHz
< -115dBc/Hz 10kHz
< -117dBc/Hz 100kHz

Residual FM

< 1Hz ×N(N is harmonic number)

Average noise level

-140dBm/Hz 10MHz~200MHz
-152dBm/Hz 200MHz~1GHz
-150dBm/Hz 1GHz~3GHz
-147dBm/Hz 3GHz~4GHz
-144dBm/Hz 4GHz~9GHz
-140dBm/Hz 9GHz~18GHz
-138dBm/Hz 18GHz~26.5GHz
-130dBm/Hz 26.5GHz~40GHz
-127dBm/Hz 40GHz~50GHz

Frequency response and absolute amplitude accuracy(10dB attenuation,
20°C ~ 30°C)

Frequency response:
< ±1.0dB 3Hz~4GHz
< ±2.0dB 4~9GHz
< ±2.0dB 9~18GHz
< ±3.0dB 18~26.5GHz
< ±3.5dB 26.5~50GHz
absolute amplitude accuracy:
±0.3dB 300MHz
±(0.3dB+frequency response)

1dB gain compression point
(mixer input level)

0dBm 20MHz~4GHz
3dBm 4GHz~9GHz
0dBm 9GHz~50GHz

TOI distortion
(mixer level -30dBm)

< -84dBc 10MHz ~ 4GHz
< -89dBc 4GHz ~ 9GHz
< -84dBc 9GHz ~ 50GHz

Remaining response

< -90dBm 1MHz~50GHz

Test speed

Local measurement update rate:90 times/sec
Center frequency tuning and conversion rates:
50ms 20Hz~4GHz
85ms 4GHz~26.5GHz
120ms 26.5GHz~50GHz


width× height× depth= 498mm×192mm×532mm (Including handles, feet, foot)
width× height× depth= 426mm×177mm×460mm(Including handles, feet, foot)


About 25kg

Input connector

AV4051/AV4051F/AV4051G:2.4mm(male),impedance 50ohm;
AV4051A/AV4051B/AV4051C/AV4051D/AV4051E:N:type(female),impedance 50ohm

Multi-domain analysis and signal playback

(1) Display multi-domain parameter of spectrum, instantaneous frequency / amplitude / phase, chromatograms;

(2) Chromatogram display for the analysis of signal change with time;

(3) Instantaneous parameter display for the analysis of pulse modulation;

(4) signal parameters;

(5) Seamless capture data storage up to 2GB;

(6) Support CSV, DAT storage file format;

(7) Support file playback signal analysis at different time;

(8) Support communication signal modulation recognition (Option).

Product Tags:

low frequency spectrum analyzer


microwave spectrum analyzer

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