GW INSTEK GSP-827 (replace by GSP-830)


* Frequency Range: 9kHz ~2.7GHz
* Input Range: -100dBm ~ +20dBm
* Average Noise Floor: -100dBm
* Power Measurements: ACPR/OCBW/CH Power
* 10 Markers: Delta Mode, Peak Search, Peak Track
* Limit Line: Upper/Lower Limit with Pass/Fail Test
* TG: 9kHz ~ 2.7GHz, -50dBm ~ 0dBm (Option)
* EMI Filters (Option)
* AC/DC/Battery(Option),Three modes of power supply


2.7GHz Spectrum Analyzer

The GSP-827 Spectrum Analyzer is a very handy instrument for RF measurement application, delivering a superior combination of easy-to-use design and exceptional price/performance value enclosed within a highly portable package. Covering 9kHz to 2.7GHz, the GSP-827 is designed to meet Production/Development test demands of RF products as well as on-site Maintenance/ Installation of wireless communication systems.

Portable and Easy-To-Use Spectrum Analyzer with Exceptional Price/Performance
Covering a frequency range of 9kHz ~ 2.7GHz, the GSP-827 is designed to meet demands in production or development testing of RF products, maintenance or installation of on-site wireless communication systems. The exceptional price/performance, high portability, and easy-to-use design make GSP-827 a very accurate and convenient instrument for most RF measurement applications.

High Portability and Large Memory Size
With the AC/DC/Battery power operation, a light 4.5kg weight, compact size, and coverage from 9kHz to 2.7GHz, the GSP-827 is a very convenient tool for field servicing RF systems. 100 sets of memory for saving 100 traces or setups make repetitive measurements and mass storage of test results possible. The large memory size of the GSP-827 is also a useful feature for characteristic verification of products and components. Repetitive measurement results can be saved internally, and then transferred to a PC for further analysis.

Exceptional Price/Performance
Utilizing advanced synthesizer-based design, the GSP-827 delivers accurate and reliable measurements. The remarkable performance of -100dBm average noise floor and -100dBm ~ 20dBm wide input range greatly expands the product application range. The ACPR, OCBW and CH power measurements make the verification of wireless communication characteristics simple and easy. The Split-Window display simultaneously shows waveform spectrums in two separate frequency spans. Setups make complicated measurements a simple task. The optional built-in tracking generator with normalized output allows easy performance testing of RF components and modules. All these innovative features reflect the price/performance value of the GSP-827.


The GSP-827 provides versatile capabilities to measure Channel Power (CHP), Occupied Bandwidth (OCBW) and Adjacent Channel Power Ratio (ACPR). These capabilities are essential to verify transmission characteristics of wireless communication systems.

CH Power :
By setting the channel center frequency and channel bandwidth, the GSP-827 automatically measures the total transmitted power within the bandwidth of the specified channel.

By setting the channel center frequency and the total percentage of transmitted power, the GSP-827 automatically indicates the bandwidth that represents the percentage of the total amount of transmitted power.
The ACPR measurement function allows users to check the interference or leakage power between the designated channel and its adjacent channels. Being able to apply to sophisticated modern communication systems, the GSP-827 has the capabilities to measure the power ratio between the specified channel and its
adjacent channels either within the same communication system or among different communication systems.
The GSP-827 allows operating flexibility under both Delta-Marker mode and Multi-Marker mode. Up to 10 markers can be selected to show their absolute frequency and amplitude in a table on the screen. The relative frequency and amplitude of the selected markers-to-reference marker can be shown quite easily.

All Markers provide fast and comprehensive interpretations of measurements and full marking capabilities including, Peak Search, Marker to Center, and Peak Track.
The GSP-827 provides up to 100 sets of memory to save or recall waveform and measurement set-ups. A specified file name and date/time stamp can be attached to each saved file for easy recognization of all saved information. With a large memory size, the GSP-827 facilitates measuring on site service and product characteristic verification.
Upper and lower limit lines can be easily set to monitor abnormal signals under user defined conditions. Each Limit Line can be set by linking points positioned by frequency and amplitude data.
The Split-Window function allows you to view the frequency spectrum of an input signal on two separate screen areas under two different settings. The split window function provides the value of two spectrum analyzers in one instrument.
With the optional Tracking Generator, the GSP-827 becomes a convenient tool to verify characteristics of dual-port components such as filters and amplifiers. The normalization process of the output signal compensates the uneven signal loss caused by side effects from measurement cables and connectors to ensure an accurate measurement.
The GSP-827 is complimented with free PC software (EagleShot) to easily transfer acquired trace and the associated data from the GSP-827 to a PC through the RS-232C interface.
With the carrying case, the GSP-827 makes on-site RF measurements more convenient than ever. The carrying case not only provides protection and portability for the GSP-827 but also carries test accessories such as RF cables, antennas, and a battery to facilitate measurements.



Frequency Range
Aging Rate
± 10ppm, 0~50°C, 5ppm/yr
Span Range
2kHz ~ 2.5GHz in 1-2-5 sequence, full span, zero span
Phase Noise
-85dBc/Hz @1GHz 20kHz offset typical
Sweep Time Range
RBW Range
3kHz, 30kHz, 300kHz, 4MHz
RBW Accuracy
Video Bandwidth Range
10Hz ~ 1MHz in 1-3 steps
Measurement Range
-100dBm ~ +20dBm: 1MHz~2.5GHz @ 3k RBW
-95dBm ~ +20dBm: 2.5GHz~2.7GHz @ 3k RBW
-75dBm ~ +20dBm: 150kHz~1MHz @ 3k RBW
-65dBm ~ +20dBm: 50kHz~150kHz @ 3k RBW
Overload Protection
+30dBm, ±25VDC
Reference Level Range
-30dBm ~ +20dBm
Amplitude Display Range
Amplitude Accuracy
±1.5dB @100MHz
Frequency Flatness
Amplitude Level Linearity
±1.5dB over 70dB
Average Noise Floor
-100dBm: 1MHz~2.5GHz
-95dBm: 2.5GHz~2.7GHz
-75dBm: 150kHz~1MHz
-65dBm: 50kHz~150kHz
Third Inter-Modulation
< -70dBc @-40dBm Input, 2MHz apart
Harmonic Distortion
< -60dBc @-40dBm Input
Non-Harmonic Spurious
< -60dB @typical down from Reference Level 150k~2.7GHz
Display Device
640 x 480 high resolution graphical LCD, B&W
Display Function
Contrast, backlight ON/OFF, Invert screen split window : upper and lower
Marker Mode
Normal and delta mode
Number: Up to 10 in multi marker mode
Internal Memory
100 traces and setup for Save/Recall
Peak Search
To peak, to center , next peak, peak right, peak left and peak track
Trace Number
Number:2, tr A and B for display memory
Functions: peak hold, average, freeze, math.
Detect: sample, peak+, AVG 1/2/3, quasi-peak
Power Measurement
ACPR x 2, OCBW, Channel Power
Functions: Video, External
Mode: continuous, single
Source: video, external (0~5V rising edge)
Setting: Trigger delay, Trigger frequency
Limit Line
Number: 2, high and low
Functions: Edit:Insert, Delect, Undo Pass/Fail
Calibration Signal
100MHz, -30dBm
RF Input
Type: N female, 50Ω nominal
RF input VSWR: <1.5:1, @0dBm Reference Level
External Reference
Type: BNC female
Clock Input
1M, 1.544M, 2.048M, 5M, 10M, 10.24M, 13M, 15.36M, 15.4M, 19.2M
Reference Clock Output
Type: BNC female, 10MHz
DC Input
Jack : 5.5mm, 12V
Sub-D 9-pin female
GPIB (Option)
Fully programmable with IEEE488.2 compliance
AC 100 ~ 240V, 48 ~ 63Hz
330(W) x 170(H) x 340(D) mm
Approx. 4.5kg


User manual x 1, Power cord x1

Ordering Information:

GSP-827 2.7GHz Spectrum Analyzer

Opt. 01
Tracking Generator
Tracking Generator
- Frequency Range: 9k~2.7GHz
- Amplitude Range: -50dBm~0dBm
- Amplitude Accuracy: ±1dB@100MHz, 0dBm
- Amplitude Flatness: ±1dB@0dBm>
- Harmonics: <-30dBc typical
- Reverse Power: +30dBm
- Impedance: Type: N female, 50Ω nominal
- RF output VSWR: < 1.5:1
Opt. 02
AC/DC Battery Operation with Battery Pack
11.1V Li-Ion battery pack *2
Opt. 03
± 1ppm Stability
*   ±1ppm, 0~50 °C , ±1ppm/yr
Opt. 06
GPIB Interface
*   IEEE 488
Opt. 12
EMI Filter (*)
*   RBW selections: 9kHz & 120kHz, 6dB bandwidth, Accuracy: 15%
Opt. 13
Demodulator (*)
* Demodulation: AM, FM ; Output: Internal speaker, 3.5mm stereo jack wired for mono operation
Opt. 14
EMI Filters and 300Hz RBW (*)
* RBW Selections: 9kHz and 120kHz,6dB bandwidth 300Hz,3dB bandwidth RBW Accuracy: 15%
Opt. 15
EMI Filters and Demodulator(*)
* RBW Selections: 9kHz and 120kHz, 6dB bandwidth
* RBW Accuracy: 15% ; Demodulation: AM, FM
* Output: Internal speaker, 3.5mm stereo jack wired for mono operation
Opt. 16
EMI Filters, 300Hz RBW and Demodulator (*)
* RBW Selections: 9kHz and 120kHz, 6dB bandwidth 300Hz, 3dB bandwidth
* RBW Accuracy: 15% ; Demodulation: AM, FM
* Output: Internal speaker, 3.5mm stereo jack wired for mono operation
NOTE : 1. (*)Only one option could be selected among option 12 to 16 for any given GSP-827 unit  2. All options are factory-installed.
BNC Antenna
(An additional ADP-001 is needed for fitting GSP spectrum analyzers)
Near Field Probe
(An additional ADP-001 & GTL-110 is needed for fitting GSP spectrum analyzers)
Return Loss Bridge RLB Frequency Range 10MHz ~ 1GHz
Passive touch Probe Set
PR-03: Passive touch probe, SMA(F)
ADP-002: Adaptor, SMA(J/F) ~ N(P/M)
GTL-303: RF Cable Assembly, SMA(P/M), 600mm
General Kit set
ADP-002: adaptor, SMA(J/F) ~ N(P/M) x 2
ATN-100: 10dB attenuator, N(J/F) ~ N(P/M) x 1
GTL-303: RF cable assembly(SMA(P/M),RD316,600mm)x2
GSC-002: Kit box x 1
CATV Kit set
ADP-001: adaptor, BNC(J/F) ~ N(P/M) x 2
ADP-101: adaptor, BNC(J/F)75Ω ~ BNC(P/M)50Ωx 2
GTL-304: RF cable assembly(RG223,N(P/M)-N(J/F),300mm)x2
GSC-003: Kit box x 1
RLB Kit set
GAK-001: termination 50 , N(P/M) x 1
GAK-002: Cap with chain, N(P/M) x 1
GTL-302: RF cable assembly(RG223,N(P/M),300mm)x2
GSC-004: Kit box x 1
EMI Probe Kit set
ANT-01: 6cm Loop, H-Field Probe x 1
ANT-02: 3cm Loop, H-Field Probe x 1
ANT-03 6mm Stub tip, E- Field Probe x 1
PR-03: Touch Passive Probe x 1 ADP-02: N(P/M)~SMA(J/F) Adapter x 1
ADP-01: N(P/M)~BNC(J/F) Adapter x 1
Test Lead: BNC(P/M)~BNC(P/M) RF Cable x 1
Test Lead: SMA(P/M)~SMA(P/M) RF Cable x 1
Rack Adapter Panel
Rack Mounting (19", 4U)
Soft Carrying Case
RF Cable RG 223 N(P/M), 1000mm
DC Power Cord
DC power cord with DC Jack and lighter plug, Current 5A




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