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ASA-1291 Handheld Spectrum Analyzer

Range: 100kHz to 2900MHz; Resolution: 3.125 kHz (Multiple of 3.125kHz); Accuracy: TXO: 3PPM / Display: 1.5PPM; Step Range: 6.25kHz; Measurement Range: -20dBm to -110dBm; Reference Level Ranges: 120dBm to -90dBm; Log Scale: 0.2dB/DIV min. in 0.25dB Steps (5 Display Division); Trigger Source: Narrow FM / Wide FM / AM / SSB; Trigger Level: TTL Level; Trace Storage/Setup Storage: Max 100 Waveforms and 100 States; Display Resolution: 192x192 pixels; Operation Temperature: 0C to 40C; Storage Temperature: 10C to 50C; Dimensions: 102x229x45 mm / 4x9x1.8 in; Weight: appr. 700g / 2.2lb (except antenna).

User's Manual (4.34 Mb)

ASA-1291 Handheld Spectrum Analyzer is the compact, lightweight, portable, and cost-effective equipment with various measurement functions such as Marker, Delta Marker, Peak Search, Channel Power measurement etc. It is the ideal tool for field RF technicians to test, install and maintain Wireless Mobile Telecommunications Systems, Cable Systems, Satellite Antennas, RFID and Jammer Systems etc.


  • 100kHz to 2.9GHz measurement range
  • Measures and demodulates W-FM /N-FM /AM /SSB signals
  • Sweep mode (Free Run, Single Run, Squelch Run)
  • 100 Saves and loads for waveforms and settings
  • Marker /Delta Marker /Squelch Adjustment Function
  • Peak Search Function
  • Marker To Center Function
  • Channel Power Measurement Function
  • RS-232 Interface


  • Field wireless Equipment Installation and Maintenance
  • General field use for Communications Installation and Maintenance
  • Cable Installation and Maintenance
  • RFID Tag RF Strength Measurement
  • Jammer (for hospital, theatre, & military) Performance Test
  • Satellite Antenna Installation and Maintenance
  • Tapping, Hidden Camera Detection



Range: 100kHz to 2900MHz
Resolution: 3.125kHz


  • TXO: 3PPM
  • Display: 1.5PPM

Modulation Bandwidth:

  • Wide FM : Apprx. 180kHz (-6dB)
  • Narrow FM : Apprx 12.5kHz / AM / SSB: Apprx 2.4kHz(-6dB)

Step Range: 6.25kHz, 12.5kHz
Frequency Selection: Start / Stop / Center span setup


Measurement Range: -20dBm to -110dBm

Average Noise Level:

  • Wide FM / AM / SSB: -100dBm
  • Narrow FM:-110dBm

Amplitude Units: dBm, dBmV, dBuV

Reference Level Accuracy:

  • Wide FM/AM/SSB Typical 1.5dB (20C ~30C)
  • Narrow FM Typical 1.5dB (25C)

Reference Level Ranges: 120dBm to -90dBm
Log Scale: 0.2 dB/DIV min. in 0.25 dB Steps (5 Display Division)

Internal Atten: 10 dB, 20 dB, 30 dB, 35 dB


Speed: Min. 500ms
Trigger Source: Narrow FM / Wide FM / AM / SSB
Trigger Mode: Free Run/ Single Run/ Continous Wave/ Squelch Run
Trigger Level: TTL Level
Marker Modes: Marker/ Delta Marker/ Peak Search/ Marker to Center/ Channel Power


Trace Storage/Setup Storage: Max 100 Waveforms and 100 States


Type: Mono STN LCD
Display Resolution: 192x192 pixels
LCD BackLight: ON/ OFF


RF Input Connector: N Type Female, 50ohms
Maximum Input Power: Max+10dBm, 5VRMS


Range: 35MHz to 2900MHz
RF Input Connector: BNC Type Female, 50 ohms (Standard)

General Specification

Operation Temperature: 0C to 40C
Humidity: 35 RH to 85 RH
Storage Temperature: 10C to 50C


Power Source: AA Type Ni-MH Rechargeable Battery x 6pcs

Power Adaptor:

  • SMPS Type AC Adapter DC 12V
  • Car-adapter DC 12V

Auto Power: OFF/ 5 min/ 10 min/ 20 min/ 30 min


Speaker: 0.5W into 8 ohms Speaker
Antenna: Dipole Antenna (Receive Only)
RS-232 Interface: 9600 bps, 19200 bps, 38400 bps, 57600 bps, and 115200 bps
8-pin MINI-DIN Connector

Dimensions: 102x229x45mm / 4x9x1.8in

Weight: appr. 700g / 1.5lb (except antenna)


  • Antenna (Receive Only)
  • AA Type Ni-MH Rechargeable Batteries (1.2 2,500mAh)
  • Coaxial Cable
    Coaxial Cable
  • RS-232 Cable
  • Carrying Case
  • Carrying Strap
  • Earphone
  • Manual
  • Software for PC Application

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