1.8 GHz Spectrum Analyzer

Model

GSP-818

Frequency

Range

9 kHz to 1.8 GHz

Resolution

1 Hz

Frequency Span

Span Range

0 Hz, 100 Hz to max. frequency of instrument

Span Uncertainty

±span / (sweep points-1)

Internal Frequency Reference

Span Range

10.000000 MHz

Reference Frequency Accuracy

±[(days from last calibrate × freq aging rate) + temperature stability + initial accuracy ]

Temperature stability

<2.5ppm (15°C to 35°C)

Aging rate

<1ppm/year

SSB Phase Noise (20°C to 30°C, fc=1 GHz, RBW= 1 kHz, VBW=10 Hz, Average ≥ 40)

10 kHz

< -82 dBc/Hz

100 kHz

< -98 dBc/Hz(Typical)

1 MHz

< -110 dBc/Hz(Typical)

Bandwidth

Resolution Bandwidth

10 Hz to 500 kHz (1-10 steps by sequence), 1 MHz, 3 MHz

EMI Filter (6 dB): 200 Hz, 9 kHz, 120 kHz, 1 MHz (Option)

RBW Uncertainty

< 5%, typical (RBW ≤ 1 MHz)

< 18%, typical (RBW is 3 MHz)

Resolution Filter Shape Factor
(60 dB: 3 dB)

<5: 1 typical (digital and close to Gaussian shape)

Video Bandwidth (VBW)

10 Hz to 3 MHz

Amplitude

Amplitude measurement range

DANL to +10 dBm, 100 kHz to 1 MHz, Preamp Off
DANL to +20 dBm, 1 MHz to 1.5 GHz, Preamp Off

Reference Level

-80 dBm to +30 dBm, 0.01dB by step

Preamp

20 dB, nominal, 9 kHz to 1.8 GHz

Input Attenuation

0 to 40 dB, in 1 dB step

Max Input DC Current

50 VDC

Max continuous power

+30dBm, average continuous power

Display Average Noise Level
(Input Attenuation= 0 dB, RBW=1 Hz and RBW normalizes to 1 Hz)

Preamp Off

1 MHz to 10 MHz

-130 dBm (Typical)

10 MHz to 1 GHz

-130 dBm (Typical)

1 GHz to 1.8 GHz

-128 dBm (Typical)

Preamp On

1 MHz to 10 MHz

-150 dBm (Typical)

10 MHz to 1 GHz

-150 dBm (Typical)

1 GHz to 1.8 GHz

-148 dBm (Typical)

Frequency response (20°C to 30°C, 30% to 70% relative humidity, input attenuation=10 dB, reference frequency=50 MHz)

Preamp Off (fc ≥100 kHz)

±0.8 dB；±0.4 dB, Typical

Preamp On(fc ≥100 MHz)

±0.9 dB；±0.5 dB, Typical

Difference and Accuracy

RBW Switch Difference

Reference: 10 kHz RBW at 50 MHz
Log resolution=±0.2 dB, Lin resolution=±0.01 Nominal

Input Attenuation Difference

20°C ~30°C, fc=50 MHz, Preamplifier Off, 10 dB RF attenuation, input signal 0~40 dB ±0.5 dB

Absolute Amplitude Uncertainty

20°C to 30°C, fc=50 MHz, Span=200 kHz, RBW=10 kHz, VBW=10 kHz, peak detector, 10 dB RF attenuation, 95% confidence level

Preamp Off

±0.4 dB, input signal level -20 dBm

Preamp On

±0.5 dB, input signal level -40 dBm

Uncertainty

Input signal range 0 dBm to -50 dBm

±1.5 dB

VSWR

Input 10 dB RF attenuation, 1MHz to 1.8GHz

<1.5, Nominal

Distortion and spurious response

Second harmonic distortion

fc ≥ 50 MHz, Preamp off, signal input -20 dBm, 0 dB RF attenuation, 20°C to 30°C

-65 dBc

Third-order intermodulation

fc ≥ 50 MHz, Input double tone level -20 dBm, frequency interval 100 kHz, input attenuation 0 dB, preamplifier off, 20°C to 30°C

+10 dBm

1 dB Gain Compression

fc ≥ 50 MHz, 0 dB RF attenuation, Preamp off , 20°C to 30°C

>+2 dBm, Nominal

Residual response

connect 50 Ω load at input port, 0 dB input attenuation, 20°C to 30°C

<-85 dBm, from 100 kHz to 1.5 GHz

<-80 dBm, from 1.5 GHz to 1.8 GHz

Input related spurious

-30 dBm signal at input mixer, 20°C to 30°C

<-60 dBc

Sweep

Sweep Time

None-zero Span

10 ms to 3000 s

Zero Span

1 ms to 3000 s

Span Mode

Continue, Single

Tracking Generator (Only apply to - TG option)

Tracking Generator Output

Frequency Range

100 kHz to 1.8 GHz

Output power level range

-30 dBm to 0 dBm

Output power level resolution

1 dB

Output flatness

± 3 dB

Maximum safe reverse level

Average total power: 30 dBm, DC : ±50 VDC

Demodulation

Audio Demodulation

Frequency Range

100 kHz to 1.8 GHz

Demodulation Type

FM/AM/USB/LSB

AM Measurement

Frequency Range

10 MHz to 1.8 GHz

Modulation rate

20Hz to 100kHz

Modulation Rate Accuracy

1Hz, nominal(Modulation rate < 1 kHz)
<0.1% modulation rate, nominal(Modulation rate ≥ 1 kHz)

Depth

5% to 95%

Depth Accuracy

±4%, nominal

FM Measurement

Frequency Range

10 MHz to 1.8 GHz

Modulation rate

20 Hz to 100 kHz

Modulation Rate Accuracy

1 Hz, nominal (Modulation rate < 1 kHz)
<0.1% modulation rate, nominal(Modulation rate ≥ 1 kHz)

Deviation

20 Hz to 200 kHz

Deviation Accuracy

±4%, nominal

Frequency Counter

Counter Resolution

1 Hz, 10 Hz, 100 Hz, 1 kHz

Accuracy

±(frequency indication × frequency reference accuracy) + counter resolution

Inputs and Outputs

RF Input

Impedance

50 Ω, Typical

Connector

N Type Female

Tracking Generator Output

Impedance

50 Ω, Typical

Connector

N Type Female

Reference Input

Connector

BNC Female

10 MHz Reference Amplitude

0 dBm to +10 dBm

USB

USB Host

Connector

A Plug

Protocol

USB 2.0 (Host End)

USB Device

Connector

B Plug

Protocol

2.0 Version

VGA

Connector

15-pins  D-SUB(female)

Resolution

800x600, 60 Hz

General Specification

Display

Type

TFT LCD

Resolution

800x600

Size

10.4 inches

Remote Control

USB

USB TMC

LAN

10/100Base, RJ-45

Mass Memory

Internal Memory

256M Bytes

Temperature

Operating Temperature Range

0 °C to 40°C

Storage Temperature Range

-20°C to 70°C

Appearance

Dimensions

421 mm (W)×221 mm (H)×115 mm (D)

Weight

Approx. 5.0 kg (without package)